JP4137769B2 - Communication system, communication method, and communication program - Google Patents

Description

  The present invention relates to an address generation system, an address generation method, and an address generation program for generating an address for communication in response to a request from a user who requests communication.

  Conventionally, in the Internet, an address uniquely identifying each user is issued, the address of the mail sender is set as the sender (From address), and the address of the mail receiver is set as the destination (To address). A mail service is provided that accepts received mail from a sender's terminal and transmits the mail to the receiver's terminal.

  Here, the address used for the mail service is given by the Internet service provider to the mail service applicant. For example, in Patent Document 1 (Japanese Patent Laid-Open No. 10-198613), public e-mail is used. Addresses are automatically given to online applicants for the service using the name entered by the applicant.

JP 10-198613 A

  By the way, in the mail service as described above, both the caller and the callee know each other's address, so the address is illegally leaked to a third party, and spam mail is generated for each user. There is a fear. When a large amount of junk mail is sent, the user discards the already acquired address and re-applies for mail issuance as in the above-mentioned conventional technique, and sets a new address. It needs to be acquired, and it takes time to acquire a new address, and an originally unnecessary procedure of notifying an acquaintance of an address change must also be performed.

  For this reason, it is desirable to realize a mail service in which addresses are concealed. However, since it is not directly feasible, among users who want to communicate with each other's addresses concealed, for example, the Internet There is a need to use the anonymous dialogue site provided above, or to acquire an alternative address dedicated to the other party separately from the address (actual address) to be kept secret.

Therefore, the present invention has been made to solve the above-described problems of the prior art,
An object of the present invention is to provide an address generation system, an address generation method, and an address generation program capable of communicating based on a real address while keeping the mutual real address secret between users.

In order to solve the above-described problems and achieve the object, the present invention is a communication system that generates a communication address in response to a request from a user who requests communication and controls communication using the address. Receiving means for receiving the real addresses or address identifiers or information generated from them while keeping the real addresses of the user A and the user B secret from each other, and the user A and the user received by the receiving means Using B's real address or address identifier or information generated from them, user A's real address or address identifier or information generated from them and the real address of user B as the destination Or, the address identifier or the information generated from these User B address and / or user B's real address or address identifier as a source limitation or information generated therefrom and user A's real address or address identifier as destination or generated from these First address generating means for generating an address addressed to user A embedded with each information being concealed, and an address addressed to user A or an address addressed to user B generated by the first address generating means as a destination When a communication request to be received is received from the user's terminal, the real address or address identifier limited to the transmission source or the information generated therefrom and the destination as the destination address from the user A address or the user B address Restore real addresses or address identifiers or information generated from them Restoration means, transfer determination means for judging whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration means, and determining whether or not the communication request can be transferred; and If it is determined by the transfer determining means that the transfer is possible, the information used by the restoring means and the source address of the communication request are used. A second address generating means for generating an address addressed to the user B and generating the address addressed to the user A if the destination address of the communication request is an address addressed to the user B; Is replaced with the real address derived from the destination information restored by the above, and the source of the communication request is set as the address addressed to the user A generated by the second address generating means. And a transfer means for transferring the communication request to the destination after the replacement .

  According to the present invention, “address A addressed to user A” and “address address addressed to user B” are generated while the real addresses of user A and user B are kept secret from each other, and a mail with this address as the destination is generated. Since it is made possible to send and receive calls with real addresses as usual, it becomes possible to communicate between users based on the real addresses while keeping the real addresses secret.

In particular, according to the invention of claim 1, 13 or 21 , it is not necessary for the user to perform complicated processing such as encrypting and transmitting the real address, and the user can obtain the address by simple processing. Is possible. Further, each user can acquire an address fairly at the same time without causing unfairness such as only one user acquiring an address first.

Further, according to the invention of claim 2, 14 or 22 , it is not necessary for the user to perform complicated processing such as encrypting and transmitting the real address, and the user can acquire the address by simple processing. Is possible. Further, each user can acquire an address fairly at the same time without causing unfairness such as only one user acquiring an address first. Furthermore, by accepting identifiers from both users, it is possible for each user to safely acquire an address without causing a situation in which an unintended address is erroneously generated.

According to the invention of claim 3, 15 or 23 , it is not necessary for the user to perform complicated processes such as encrypting and transmitting the real address, and the user can acquire the address by a simple process. Is possible. In addition, by generating the address addressed to user B independently from the generation of the address addressed to user A, it is desired to quickly establish only one-way communication (from user A to user B). It becomes possible to respond to user requests such as being sufficient.

According to the invention of claim 4, 16 or 24 , each user acquires an address fairly at the same time without causing unfairness such as only one user acquiring an address first. It becomes possible. In addition, prior processing such as the user receiving an identifier is not required prior to the exchange (ticket delivery) between users, and each user can acquire an address with a small exchange. Furthermore, it becomes possible to eliminate the management burden of identifiers issued in the preprocessing.

In addition, according to the invention of claim 5, 17 or 25 , each user acquires the address fairly at the same time without causing unfairness such as only one user acquiring the address first. It becomes possible. In addition, prior processing such as the user receiving an identifier is not required prior to the exchange (ticket delivery) between users, and each user can acquire an address with a small exchange. Furthermore, it becomes possible to eliminate the management burden of identifiers issued in the preprocessing. In addition, by accepting tickets from both users, it is possible for each user to safely obtain an address without causing an unintended address to be generated by mistake.

In addition, according to the invention of claim 6, 18 or 26 , each user acquires the address fairly at the same time without causing unfairness such as only one user acquiring the address first. It becomes possible. In addition, prior processing such as the user receiving an identifier is not required prior to the exchange (ticket delivery) between users, and each user can acquire an address with a small exchange. Furthermore, it becomes possible to eliminate the management burden of identifiers issued in the preprocessing. In addition, by generating the address addressed to user B independently from the generation of the address addressed to user A, it is desired to quickly establish only one-way communication (from user A to user B). It becomes possible to respond to user requests such as being sufficient.

According to the invention of claim 7, 19 or 27 , communication in one direction (user A to user B) can be performed by generating the address addressed to user B independently of the generation of the address addressed to user A. It is possible to respond to the user's request such that it is necessary to establish only one of them immediately or only one-way communication is sufficient. In addition, prior processing such as the user receiving an issuance of an identifier prior to the exchange between users (access code delivery) is not necessary, and each user can acquire an address with few exchanges. Furthermore, it becomes possible to eliminate the management burden of identifiers issued in the preprocessing. Also, by generating an address using an address code rather than the actual address itself, it becomes possible to generate an address that is more difficult to decipher.

According to the invention of claim 8, 20 or 28 , it is not necessary for the user to perform complicated processing such as encrypting and transmitting the real address, and the user can obtain the address by simple processing. Is possible. In addition, by generating the address addressed to user B independently from the generation of the address addressed to user A, it is desired to quickly establish only one-way communication (from user A to user B). It becomes possible to respond to user requests such as being sufficient. Furthermore, it is possible to generate an address only by normal transmission processing with a temporary address as a destination without requiring complicated processing from the user B. It is also possible to eliminate the management burden of identifiers issued in the preprocessing.

  In addition, according to the invention of claim 9, it is possible to control to exclude a transmission request that does not satisfy the transmission condition, and further, by using no database (DB defining the transmission condition) for determining the transmission condition, High-speed determination processing can be performed without causing a management burden.

  According to the tenth aspect of the present invention, it is possible to prevent the situation where the period until the address is generated from extending indefinitely and to generate the address smoothly.

  According to the invention of claim 11, it is possible to ensure the anonymity of the user A and to avoid the situation where the user A misappropriates the ticket of another person.

  According to the invention of claim 12, it is possible to ensure the anonymity of the user A and avoid the situation where the user A misappropriates the address of another person.

  Exemplary embodiments of an address generation system, an address generation method, and an address generation program according to the present invention will be described below in detail with reference to the accompanying drawings. In the following, the case where the present invention is applied to a mail service system will be listed as an example, and after describing the main terms used in the present example, the outline and features of the mail service system according to the present example, Examples (Examples 1 to 5) will be described.

[Explanation of terms]
First, main terms used in this embodiment will be described. The “real address” used in the present embodiment is an address such as an Internet mail or a mobile mail possessed by a user who uses communication by mail, and the user originally uses the mail service of the present embodiment before using the mail service. It indicates the address that you have. In this embodiment, the real address of user A is expressed as address A, and the real address of user B is expressed as address B.

  In addition, “address addressed to user A (denoted as“ TA ”” in this embodiment) and “address addressed to user B (denoted as“ TB ”in the present embodiment)” used in the present embodiment are used. In addition to the above real address, it is another address such as Internet mail or mobile mail issued by the mail service of this embodiment. Specifically, as shown in FIG. User B's real address and user A's real address as a destination are concealed and embedded as "User A address TA", User A's real address and use as a destination only This corresponds to “user B address TB” in which the real address of user B is concealed.

  In addition, “transfer conditions (corresponding to“ transmission conditions ”described in the claims, and expressed as“ C ”in this embodiment”) ”used in the present embodiment refers to the above-described address TA and address TB. This is the outgoing condition that the destination mail should satisfy. For example, the expiration date (or validity period) that permits email forwarding, the originating domain that permits email forwarding, the start date that permits email forwarding, etc. This is the condition that specifies. This transfer condition C is embedded in the above address TA or address TB, and is used for transfer determination at the time of mail transfer.

[Overview and Features]
Next, the outline and features of the mail service system according to the present embodiment will be described. In general, the mail service system according to the present embodiment generates an address for communication in response to a request from a user who requests communication, and provides a mail service using the address. The addresses generated here are the above-mentioned different addresses (addresses addressed to user A and address addressed to user B), whereby the users communicate with each other based on the actual addresses while keeping their real addresses secret. The main feature is that it makes this possible.

  Briefly describing this, in the mail service system according to the present embodiment, the address issuing center or the like obtains the addresses A and B directly from the user A and the user B, etc. The address A and the address B used for generating another address are obtained while keeping it secret. In addition, the address issuing center or the like receives the session ID issued from the user A to the user B as a request for issuing another address and receives the actual address of both from the user B terminal. Are kept secret from each other, and a request for issuing another address is confirmed through the intervention of both parties.

  Through such a procedure, the address issuing center or the like generates the user TA address TA and the user B address TB as described above, and assigns them to the user A and the user B. Here, since the real addresses of the user A and the user B are concealed and embedded in the address TA and the address TB, of course, the user A and the user B who have obtained them are illegal. The third party obtained in the above cannot grasp the real address, and only the mail transfer center has the authority to analyze it.

  When user A sends a mail to user B, a mail is created using address TB as the destination (To address) and address A as usual as the sender (From address). To send. Similarly, when user B sends an email to user A, an email is created using address TA as the destination (To address) and address B as the sender (From address) as usual. Then send.

  On the other hand, in the mail transfer center that has received such mail, for example, for mail addressed to the address TA, the address A as the destination and the address B as the caller limitation are restored from the address TA. If the sender (From address) of the received mail is address B, the forwarding center replaces the mail destination (To address) with address A and changes the mail sender (From address) to the user. The mail is replaced with address B addressed to B, and this mail is transferred to user A (if the received mail is sent from a source other than address B, the mail is discarded). As a result, the user A receives the mail transmitted from the user B by using the address A as usual.

  As described above, in the mail service system according to the present embodiment, the real addresses of the user A and the user B are kept secret from each other, and the “user A address TA” and the “user B address” are intervened between them. "TB" is generated, and mails with this as the destination can be sent and received with a real address as usual, so that each user's real address is kept secret between users as described above. It becomes possible to communicate based on the real address.

  In the first embodiment, a case where an address A is received from a user A, a session ID is issued, and the session ID is received from the terminal of the user B together with the address B to generate an address TA and an address TB will be described. In the following, after describing the configuration of the mail service system according to the first embodiment, the address generation processing procedure and the mail transfer processing procedure will be described, and finally the effects and modifications of the first embodiment will be described.

[System Configuration (Example 1)]
First, the configuration of the mail service system according to the first embodiment will be described with reference to FIG. FIG. 1 is a system configuration diagram illustrating the overall configuration of the mail service system according to the first embodiment. As shown in the figure, this system includes a user terminal 10a, a user terminal 10b, an address exchange center 20, an address issuing center 30, and a mail transfer center 40, and a network 1 such as the Internet or a LAN. And are configured to be communicable with each other.

  Among these, the user terminal 10a is a user terminal used by the user A having the address A. The user terminal 10a mainly accesses the address exchange center 20 and receives a later-described session ID, or the address issuing center 30. A role of obtaining the address TB from the mail, a role of creating and sending a mail having the address TB as a destination, a role of receiving a mail having the address A as the destination. The caller terminal 10a and a user terminal 10b to be described later are realized by a known personal computer, workstation, home game machine, Internet TV, PDA, or mobile communication terminal such as a mobile phone or PHS. .

  The user terminal 10b is a user terminal used by the user B having the address B. The user terminal 10b mainly transmits a session ID delivered from the user A to the address exchange center 20, and from the address exchange center 20. The role of receiving the mail transfer condition C and outputting and displaying it on a monitor, the role of sending an address issuance request including the address B to the address exchange center 20, the role of obtaining the address TA from the address issuance center 30, and the address TA It has a role of creating and sending a mail having a destination, a role of receiving a mail having the address B as a destination.

  The address exchange center 20 is a device of a business that supports the exchange of addresses between the user A and the user B. The address exchange center 20 mainly receives a session ID issuance request from the user terminal 10a and issues a session ID. The role of transmitting the ID to the user terminal 10a, the role of verifying the session ID received from the user terminal 10b, the role of receiving the address issuance request from the user terminal 10b and transmitting the address issuance request to the address issuance center 30, etc. Have. The address exchange center 20, the address issuing center 30 and the mail transfer center 40, which will be described later, are realized by known server computers.

  The address issuing center 30 is a device of a company that supports address exchange in cooperation with the address exchange center 20 described above, and mainly has a role of receiving an address issue request from the address exchange center 20 and issuing an address TA and an address TB. And has a role of transmitting the issued address TA and address TB to the user terminal 10a and the user terminal 10b.

  The mail transfer center 40 is a device of a trader who provides mail services using different addresses (address TA or address TB). Mainly, the mail transfer center 40 receives mails with the address TA or address TB as the destination and receives the addresses A and B. A role to restore, a role to determine the mail transfer condition C, a role to create a source address (same as the address TA or address TB) of the forwarded mail, a role to replace the mail source and destination addresses, It has a role of forwarding mail whose address has been replaced. Hereinafter, the configuration of the address exchange center 20, the address issuing center 30, and the mail transfer center 40 that bear the main features of the first embodiment will be described in detail with reference to FIG.

[Configuration of Address Exchange Center (Example 1)]
As shown in FIG. 1, the address exchange center 20 includes a communication unit 21, a session ID table 22, a session ID issuing unit 23, and a session ID verification unit 24, which are closely related to the present invention. Note that the communication unit 21 corresponds to an identifier receiving unit such as claim 1, the session ID issuing unit 23 corresponds to an identifier issuing unit such as claim 1, and the session ID verification unit 24 includes an identifier verification unit such as claim 1. Corresponding to

  Among these, the communication unit 21 is a processing unit that controls communication with the user terminal 10a, the user terminal 10b, the address issuing center 30, and the like according to a so-called HTTP communication protocol. Specifically, a process for receiving a session ID issuance request (address A, an issuance time limit for another address (expiration date for a session ID), a mail transfer condition C with another address as the destination) from the user terminal 10a, issuance The process of transmitting the session ID to the user terminal 10a, the process of receiving the session ID passed from the user A to the user B from the user terminal 10b, and the transfer condition C corresponding to the session ID is set to the user terminal 10b. , A process of receiving an address issuance request (address B) from the user terminal 10b, a process of transmitting an address issuance request (address A, address B, transfer condition C) to the address issuance center 30 and the like.

  The session ID table 22 is a memory that stores a session ID issued by a session ID issuing unit 23 described later. Specifically, as illustrated in FIG. 2, for each session ID uniquely identified by a number, an issuance parameter of each session ID, which is an issuance parameter for each session ID, an issuance deadline for another address, and a mail transfer condition C Are associated with each other.

  The session ID issuing unit 23 is a processing unit that issues a session ID based on a session ID issue request (address A, issue deadline for another address, transfer condition C) received from the user terminal 10a. Specifically, a session ID is randomly generated using a random number generator, etc., and the generated session ID and the contents of the session ID issuance request (address A, another address issuance deadline, transfer condition C) are supported. In addition, it is stored in the session ID table 22. The issued session ID is transmitted to the user terminal 10a by the communication unit 21.

  The session ID verification unit 24 is a processing unit that verifies whether or not the session ID received from the user terminal 10b has been properly issued. Specifically, if the received session ID is stored in the session ID table 22 and the received date and time of the session ID is before the “issue deadline” stored in association with the session ID table 22, the Is determined to have been issued.

  When the session ID verification unit 24 determines that the session ID has been issued normally, the communication unit 21 transmits the transfer condition C corresponding to the session ID to the user terminal 10b, and On the other hand, when an address issue request (address B) is received from the user terminal 10b, an address issue request (address A, address B, transfer condition C) is transmitted to the address issue center 30. However, if it is not determined that the session ID has been issued normally, the fact that the session ID is invalid is transmitted to the user terminal 10b. If no address issuance request is received from the user terminal 10 b, the process ends without transmitting an address issuance request to the address issuance center 30.

[Configuration of Address Issuing Center (Example 1)]
As shown in FIG. 1, the address issuing center 30 includes a communication unit 31 and an address generation unit 32 that are closely related to the present invention. The address generation unit 32 corresponds to an address generation means such as claim 1.

  Among these, the communication unit 31 is a processing unit that controls communication with the user terminal 10a, the user terminal 10b, the address exchange center 20, and the like according to a so-called HTTP communication protocol. Specifically, a process for receiving an address issue request (address A, address B, transfer condition C) from the address exchange center 20, and a process for transmitting the issued address TA and address TB to the user terminal 10a and the user terminal 10b. And so on.

  The address generation unit 32 is a processing unit that generates the user TA address TA and the user B address TB based on the address issuance request (address A, address B, transfer condition C) received from the address exchange center 20. . Specifically, as illustrated in FIG. 3, for the address TA, a user name is generated by encrypting the address B as the call originator, the address A as the destination and the transfer condition C with the encryption function P. An address TA is created by adding a domain name corresponding to the mail transfer center 40 described later. Similarly, as illustrated in FIG. 3, for the address TB, a user name is generated by encrypting the address A as the source restriction, the address B as the destination and the transfer condition C with the encryption function P. The address TB is created by adding a domain name corresponding to the mail transfer center 40 to this.

  More specifically, the address generation unit 32 has a predetermined master key, and is a character string obtained by concatenating the address A, the address B, and the transfer condition C (or the address B, the address A, and the transfer condition C). Is encrypted with the master key, and the encrypted result is used as the user name of the address TA or the address TB. The generated address TA is transmitted to the user terminal 10b by the communication unit 31, and the similarly generated address TB is transmitted to the user terminal 10a by the communication unit 31.

[Configuration of Mail Transfer Center (Example 1)]
As shown in FIG. 1, the mail transfer center 40 is closely related to the present invention, and includes a communication unit 41, an address restoration unit 42, a transfer determination unit 43, an address generation unit 44, and an address replacement unit 45. With. The address generation unit 44 corresponds to the address generation means for user A in claim 13.

  Among these, the communication part 41 is a process part which receives and transmits the mail which the user terminal 10a and the user terminal 10b send and receive. Specifically, a process of receiving an email addressed to the address TB from the user terminal 10a (more specifically, the user A side mail server used by the user A at the address A), the address B Processing for sending an email addressed to the user terminal 10b (more specifically, a user B side mail server used by the user B at the address B), an email addressed to the address TA to the user Processing to receive from the terminal 10b (more specifically, user B side mail server), processing to send an email addressed to the address A to the user terminal 10a (more specifically, user A side mail server) And so on.

  The address restoration unit 42 is a processing unit that restores the address A, the address B, and the transfer condition C from the address TA and the address TB. Specifically, it has a master key similar to that of the address generation unit 32 of the address issuing center 30, and uses this master key to decrypt the user name portion of the address TA or the address TB to generate the address A, the address B, and the transfer condition. Extract C.

  The transfer determination unit 43 is a processing unit that determines whether the mail satisfies the caller limitation and the transfer condition C. Specifically, when a mail having the destination address TB is received, whether or not the mail source address matches the address A extracted from the address TB, and the mail transmission status is an address It is determined whether the transfer condition C extracted from TB is satisfied. Similarly, when a mail having the address TA as the destination is received, whether or not the mail sender address matches the address B extracted from the address TA, and the mail transmission status is the address. It is determined whether or not the transfer condition C extracted from TA is satisfied.

  The address generation unit 44 is a processing unit that generates an address that is a transmission source of mail to be transferred when the transfer determination unit 43 determines that the caller limitation and the transfer condition C are satisfied. Specifically, the same processing as that of the address generation unit 32 of the address issuing center 30 is executed. For example, when a mail having the address TA as the destination is received, the address TB is generated and the address TB is set as the destination. Is received, the address TA is generated. When the caller limitation or the transfer condition C is not satisfied, the processing of the address generation unit 44 and the address replacement unit 45 described later is not executed, and the mail is discarded.

  The address replacement unit 45 is a processing unit that replaces the mail source and destination addresses. Specifically, when a mail having the address TA as the destination is received, the mail destination (To address) is replaced with the address A, and the mail source (From address) is replaced with the address TB. . Similarly, when a mail having the address TB as the destination is received, the mail destination (To address) is replaced with the address B, and the mail source (From address) is replaced with the address TA. . The mail whose address is replaced in this way is transferred to the user terminal 10a and the user terminal 10b by the communication unit 41.

[Address Generation Processing (Example 1)]
Subsequently, an address generation process according to the first embodiment will be described with reference to FIG. FIG. 4 is a flowchart illustrating an address generation processing procedure according to the first embodiment.

  As shown in the figure, upon receiving a session ID issue request from the user terminal 10a (step S401), the address exchange center 20 issues a session ID randomly using a random number generator or the like (step S402). The issued session ID and the content of the session ID issue request (address A, issuance deadline for another address, transfer condition C) are stored in the session ID table 22 in association with each other, and the session ID is transmitted to the user terminal 10a. (Step S403).

  The user A who has obtained the session ID from the address exchange center 20 operates the user terminal 10a and transfers the session ID to the user terminal 10b through an arbitrary communication path (step S404). For example, the user terminal 10a and the user terminal 10b are connected by infrared communication and the session ID is delivered, or the session ID output and displayed on the user terminal 10a is orally communicated to the user B, thereby the user terminal 10b. For example.

  Thereafter, the address exchange center 20 receives a session ID from the user terminal 10b (step S405), and verifies the received session ID (step S406). If the session ID is stored in the session ID table 22 and the reception date / time of the session ID is before the “issue deadline” stored in association with the session ID table 22, the session ID is properly issued And the transfer condition C corresponding to the session ID is transmitted to the user terminal 10b (step S407). If it is not determined that the session ID has been issued normally, a message indicating that the session ID is invalid is transmitted to the user terminal 10b.

  The user terminal 10b that has received the transfer condition C outputs and displays the received transfer condition C on a monitor or the like (step S408), whereby the user B considers whether or not to issue another address issue request. When the address exchange center 20 receives an address issue request (address B) from the user terminal 10b (step S409), the address exchange center 20 transmits an address issue request (address A, address B, transfer condition C) to the address issue center 30. (Step S410). If an address issue request has not been received from the user terminal 10b, the process ends without transmitting an address issue request to the address issue center 30.

  The address issuance center 30 that has received the address issuance request generates a user A address TA and a user B address TB based on the received address issuance request (address A, address B, transfer condition C) (step S411). ). Then, the generated address TA is transmitted to the user terminal 10b, and the generated address TB is also transmitted to the user terminal 10a (step S412). Accordingly, as long as the address TA and the address TB are valid, the user A and the user B communicate with each other by mail.

[Mail transfer processing (Example 1)]
Next, the mail transfer process according to the first embodiment will be described with reference to FIG. FIG. 5 is a flowchart illustrating a mail transfer processing procedure according to the first embodiment.

  When the mail transfer center 40 receives a mail addressed to the address TB from the user terminal 10a via the user A side mail server (step S501), the address A, the address B and the transfer condition C are transferred from the address TB. Is restored (step S502). Then, based on the restored address A (address limited to the caller) and the transfer condition C, it is determined whether or not the mail satisfies the caller limit and the transfer condition C (step S503).

  As a result, when it is determined that the caller limitation and the transfer condition C are satisfied, the mail transfer center 40 generates an address that is a transmission source of the mail to be transferred (step S504). That is, the process similar to that of the address issuing center 30 is executed to generate the address TA. When it is determined that the caller limitation or the transfer condition C is not satisfied, the mail is discarded.

  Subsequently, the mail transfer center 40 replaces the mail source and destination addresses (step S505). Specifically, the mail destination (To address) is replaced with address B, and the mail source (From address) is replaced with address TA. Then, the mail transfer center 40 transfers the mail whose address has been replaced in this way to the user terminal 10b via the user B side mail server (step S506).

  In the above description, the case where the user A transmits an email to the user B using the address TB has been described as an example. However, the case where the user B transmits an email to the user A using the address TA. Are similarly processed. The same processing is performed when a reply mail is received from the user B for the mail transmitted in step S506.

[Effect of Example 1]
As described above, according to the first embodiment, while the real addresses of the user A and the user B are kept secret from each other, the “user A address TA” and the “user B address TB” are set through the session ID. Created and sent and received mail with this address as a normal address as usual, enabling users to communicate based on their real addresses while keeping each other's real addresses secret Become.

  Further, according to the first embodiment, it is not necessary for the user to perform complicated processing such as encrypting and transmitting the real address, and the user can acquire the address by simple processing. Furthermore, according to the first embodiment, it is possible for each user to acquire an address fairly at the same time without causing unfairness such as only one user acquiring an address first.

  Further, according to the first embodiment, by embedding the transfer condition in the address, it is possible to control the mail that does not satisfy the transfer condition, and the database (DB defining the transfer condition) is used for determining the transfer condition. Therefore, high-speed determination processing can be performed without causing a burden of database management.

  Further, according to the first embodiment, by associating the session ID with the issue deadline, it is possible to prevent the situation where the period until the address is generated from extending indefinitely and to generate the address smoothly.

  In the first embodiment, the address, issue deadline, and transfer condition C associated with the session ID are managed in the table. However, the table is created by embedding these address, issue deadline, and transfer condition in the session ID. It may be unnecessary, and this makes it possible to realize the generation processing of another address (address TA or address TB) at high speed and with low load.

[Modification 1 of Example 1]
By the way, in the first embodiment described above, the case where the address TA and the address TB are generated based on the session ID issued by the user A has been described. It may be a condition for generating addresses. Therefore, a case where the address generation condition is that both parties receive the issue of a session ID will be described as a first modification with reference to FIG.

  As shown in FIG. 6, in the first modification, when the user A receives a session ID (ID_A) from the address exchange center 20 via the user terminal 10a, the user A hands it over to the user B. . On the other hand, when the user B receives a session ID (ID_B) from the address exchange center 20 via the user terminal 10b, the user B also passes it to the user A.

  When the address exchange center 20 receives the session ID (ID_B) and the address A from the user terminal 10a and receives the session ID (ID_A) and the address B from the user terminal 10b, the address exchange center 20 It is transmitted to the issuing center 30. As a result, the addresses TA and TB are generated on condition that both the user A and the user B are issued session IDs and the respective session IDs are exchanged between the users.

  As described above, according to the first modification, by accepting the session ID from both users, in addition to the effects of the first embodiment, it does not cause a situation that an unintended address is generated by mistake. Each user can obtain an address safely.

[Modification 2 of Embodiment 1]
In the first embodiment, the case where both the address TA and the address TB are generated has been described. However, only the address TA that is one address may be generated first. Accordingly, a case where only the address TB is first generated will be described below as a second modification with reference to FIG.

  As shown in FIG. 7, in the second modification, as in the first embodiment, when the user A receives a session ID (ID_A) from the address exchange center 20 via the user terminal 10a, Deliver to user B. The address issuing center 30 also receives the session ID (ID_A) from the user terminal 10b and transmits an address issuing request to the address issuing center 30 as in the first embodiment.

  However, the address issuing center 30 generates only the address TB in response to the address issue request and transmits it to the user terminal 10a. Then, when a mail having the address TB as the destination is sent from the user terminal 10a, the mail transfer center 40 generates the address TA for the first time through the process shown in FIG.

  As described above, according to the second modification, by generating the address TB independently of the generation of the address TA, it is desired to quickly establish only one-way communication (from the user A to the user B). It is possible to respond to the user's request that only the communication is sufficient. Furthermore, by generating the address TA according to the normal call processing by the user A, the user B can easily acquire the address TA simply by performing the normal call processing.

  In the second embodiment, a case where the address TA and the address TB are generated by accepting a ticket issued by the user A at his / her terminal from the terminal of the user B together with the address B will be described. In the following, after describing the configuration of the mail service system according to the second embodiment, the address generation processing procedure will be described, and finally the effects and modifications of the second embodiment will be described.

[System configuration (Example 2)]
Initially, the structure of the mail service system based on Example 2 is demonstrated using FIG. FIG. 8 is a system configuration diagram illustrating the overall configuration of the mail service system according to the second embodiment. As shown in the figure, this system includes a user terminal 10a, a user terminal 10b, an address exchange center 50, an address issuing center 30, and a mail transfer center 40, and a network 1 such as the Internet or a LAN. And are configured to be communicable with each other.

  Among these, the address issuance center 30 and the mail transfer center 40 are the same devices as the address issuance center 30 and the mail transfer center 40 described in the first embodiment, and have the same configuration and perform the same processing.

  The user terminal 10a and the user terminal 10b are basically the same as the user terminal 10a and the user terminal 10b described in the first embodiment. However, the user terminal 10a has a role of generating a random number, a role of generating a ticket, a role of passing the ticket to the user terminal 10b, and the like. Further, the user terminal 10b has a role of generating a random number, a role of receiving a ticket from the user terminal 10a, a role of outputting and displaying the plaintext block contents of the ticket on a monitor, etc., and an address issuance request composed of the ticket and the address B. It has a role of transmitting to the exchange center 50.

  The address exchange center 50 corresponds to the address exchange center 20 described in the first embodiment. However, the address exchange center 50 has a role of receiving an address issue request (ticket and address B) from the user terminal 10b, a role of decrypting and verifying the received ticket, and an address issue request to the address issue center 30. Have a role to play. Below, the structure of the user terminal 10a, the user terminal 10b, and the address exchange center 50 is demonstrated in detail using FIG.

[Configuration of User Terminal (Example 2)]
As shown in FIG. 8, the user terminal 10a includes a communication unit 11, a random number generation unit 12, a public key holding unit 13, and a ticket generation unit 14, as closely related to the present invention. The user terminal 10b includes a communication unit 11 and a random number generation unit 12, as shown in FIG.

  Among these, the communication unit 11 includes the user terminal 10b or the user terminal 10a, the address exchange center 50, the mail transfer center 40 (more specifically, the user A side mail server or the user B side mail server), and the like. It is a processing part which controls communication between. Specifically, the user terminal 10a and the user terminal 10b are connected by infrared communication or the like, and a process for transmitting / receiving a random number or a ticket, which will be described later, or an address issue request (ticket and address B) are transmitted to the address exchange center 50. Execute processing.

  The random number generation unit 22 generates and shares random numbers that the user A and the user B cannot control each other using a random number generator and a one-way function processing unit provided in the user terminal 10a and the user terminal 10b, respectively. Is a processing unit. Specifically, random numbers that cannot be controlled with each other are generated by using bit commitment and EXOR operation.

  The public key holding unit 13 is a memory that stores a public key used for generating a ticket to be described later. The public key is a public key of the address exchange center 50 obtained from the address exchange center 50, and corresponds to a secret key held by the address exchange center 50.

  The ticket generation unit 14 is a processing unit that generates a ticket using the random number generated by the random number generation unit 22 or the public key held by the public key holding unit 13. Specifically, as illustrated in FIG. 9, a random number, an issuance deadline for another address, a transfer condition C and an “encrypted block” in which the address A is encrypted with a public key, and a random number, an issuance deadline, and a transfer condition are derived therefrom. A ticket composed of a “plaintext block” in which C is expressed in plaintext is generated.

[Configuration of Address Exchange Center (Example 2)]
As shown in FIG. 8, the address exchange center 50 includes a communication unit 51, a secret key holding unit 52, a ticket decryption unit 53, and a ticket verification unit 54, which are closely related to the present invention. Note that the communication unit 51 corresponds to ticket accepting means such as claim 4, and the ticket decryption unit 53 and ticket verification unit 54 correspond to ticket verification means such as claim 4.

  Among these, the communication unit 51 is a processing unit that controls communication with the user terminal 10b, the address issuing center 30, and the like according to a so-called HTTP communication protocol. Specifically, processing for receiving an address issuance request (ticket and address B) from the user terminal 10b, processing for transmitting an address issuance request (address A, address B, transfer condition C) to the address issuance center 30 is executed. To do.

  The secret key holding unit 52 is a memory that holds a secret key used for decrypting the ticket received from the user terminal 10b. The secret key corresponds to the public key that is given to the user A and held in the user terminal 10a.

  The ticket decryption unit 53 is a processing unit that decrypts the ticket received from the user terminal 10b. Specifically, using the secret key held in the secret key holding unit 52, the encrypted block of the ticket (see FIG. 9) is decrypted, and the random number, the issuance deadline of another address, the transfer condition C, and the address A are obtained. Extract each one.

  The ticket verification unit 54 is a processing unit that verifies whether or not the ticket received from the user terminal 10b is normally issued. Specifically, if the random number extracted from the encrypted block, the issue deadline, and the transfer condition C match those of the plaintext block, and the ticket reception date and time is before the "issue deadline", it is issued correctly Is determined.

  When the ticket verification unit 54 determines that the ticket has been issued normally, the communication unit 51 sends an address issue request (address A, address B, transfer condition C) to the address issue center 30. Send. However, if it is not determined that the ticket has been issued normally, the fact that the ticket is invalid is transmitted to the user terminal 10b, and the processing is performed without transmitting the address issuance request to the address issuance center 30. finish.

[Address Generation Processing (Example 2)]
Subsequently, an address generation process according to the second embodiment will be described with reference to FIG. FIG. 10 is a flowchart illustrating an address generation processing procedure according to the first embodiment.

  As shown in the figure, the user terminal 10 a obtains a public key from the address exchange center 50 and holds it in the public key holding unit 13. The user terminal 10a and the user terminal 10b are connected to each other via an arbitrary communication path such as infrared communication, and the random number generator and the one-way function processing unit respectively provided are used for the user A and the user A. B generate and share random numbers that cannot be controlled by each other (step S1001).

  Subsequently, the user terminal 10a transmits a random number, an issuance time limit for another address, a transfer condition C and an address “A” encrypted with a public key, and a random number, an issuance time limit, and a transfer condition C in plaintext. A ticket (see FIG. 9) composed of the “plaintext block” shown is generated (step S1002). Then, the user terminal 10a delivers the ticket to the user terminal 10b via an arbitrary communication path such as infrared communication (step S1003).

  The user terminal 10b that has received the ticket outputs and displays the plaintext block of the ticket on a monitor or the like (step S1004), whereby the user B confirms whether or not the random number is the same as that related to sharing. Consider whether or not to issue another address issue request. When the address exchange center 50 receives the address issuance request (address B, ticket) from the user terminal 10b (step S1005), the address exchange center 50 decrypts the ticket using the secret key, and generates a random number and another address from the encrypted block. The issue deadline, transfer condition C, and address A are extracted (step S1006).

  Subsequently, the address exchange center 50 verifies whether or not the ticket is normally issued (step S1007). Specifically, if the random number extracted from the encrypted block, the issue deadline, and the transfer condition C match those of the plaintext block, and the ticket reception date and time is before the "issue deadline", it is issued correctly Is determined.

  As a result, if it is determined that the ticket has been issued normally, the address exchange center 50 transmits an address issue request (address A, address B, transfer condition C) to the address issue center 30. If it is not determined that the ticket has been issued normally, the fact that the ticket is invalid is transmitted to the user terminal 10b, and the processing is performed without transmitting the address issuance request to the address issuance center 30. finish.

  The address issuance center 30 that has received the address issuance request generates a user A address TA and a user B address TB based on the received address issuance request (address A, address B, transfer condition C) (step S1009). ). Then, the generated address TA is transmitted to the user terminal 10b, and the generated address TB is also transmitted to the user terminal 10a (step S1010). Accordingly, as long as the address TA and the address TB are valid, the user A and the user B communicate with each other by mail. The mail transfer processing procedure according to the second embodiment is the same as the processing procedure described in the first embodiment with reference to FIG.

[Effect of Example 2]
As described above, according to the second embodiment, the “address A for user A TA” and the “address TB for user B” are generated through the ticket while keeping the real addresses of the user A and the user B secret from each other. In addition, since it is now possible to send and receive mail with a real address as usual, it is possible to communicate based on the real address while keeping each other's real address secret. . Further, according to the second embodiment, it is possible for each user to acquire an address fairly at the same time without causing unfairness such as only one user acquiring an address first.

  Further, according to the second embodiment, no pre-processing such as a user receiving a session ID is required prior to exchange (ticket delivery) between users, and each user can acquire an address with few exchanges. It becomes possible. Furthermore, it becomes possible to eliminate the management burden such as the session ID issued in the preprocessing.

  Further, according to the second embodiment, by associating an issue deadline with a ticket, it is possible to prevent a situation in which a period until an address is generated from extending indefinitely and to generate an address smoothly.

  In addition, according to the second embodiment, by associating a random number generated by the cooperation of the user A and the user B with the ticket, the anonymity of the user A is ensured, and the user A holds the ticket of another person. It becomes possible to avoid the situation of misappropriation.

[Modification 1 of Embodiment 2]
In the second embodiment described above, the case where the address TA and the address TB are generated based on the ticket issued by the user A has been described. However, the address that both the user A and the user B issue the ticket is described. The generation conditions may be used. That is, user A issues ticket a at user terminal 10a and passes it to user B, while user B issues ticket b at user terminal 10b and passes it to user B. Give it to A.

  The address exchange center 50 transmits an address issuance request to the address issuance center 30 when the ticket b and the address A are received from the user terminal 10a and the ticket a and the address B are received from the user terminal 10b. . As a result, both the user A and the user B issue tickets, and the addresses TA and TB are generated on condition that the respective tickets are exchanged between the users.

  As described above, according to the first modification, in addition to the effect of the second embodiment, by accepting tickets from both users, without causing a situation such as erroneous generation of an unintended address, Each user can obtain an address safely.

[Modification 2 of Embodiment 2]
In the second embodiment, the case where both the address TA and the address TB are generated has been described. However, only the address TA that is one address may be generated first. That is, as in the second embodiment, the user A issues a ticket a at the user terminal 10a and delivers it to the user B, and the address exchange center 50 is also sent from the user terminal 10b as in the second embodiment. An address issue request (ticket a, address B) is received, and an address issue request is transmitted to the address issue center 30.

  However, the address issuing center 30 generates only the address TB in response to the address issue request and transmits it to the user terminal 10a. Then, when a mail having the address TB as the destination is sent from the user terminal 10a, the mail transfer center 40 performs the same process as the process shown in FIG. 5 to generate the address TA for the first time.

  As described above, according to the second modification, by generating the address TB independently of the generation of the address TA, it is desired to quickly establish only one-way communication (from the user A to the user B). It is possible to respond to the user's request that only the communication is sufficient. Furthermore, by generating the address TA according to the normal call processing by the user A, the user B can easily acquire the address TA simply by performing the normal call processing.

  In the third embodiment, a case will be described in which an address TB is generated by accepting an address code (encrypted address A) issued by the user A at his / her terminal from the terminal of the user B together with the address B. In the following, after describing the configuration of the mail service system according to the third embodiment, the processing procedure (address generation processing procedure, mail transfer processing procedure) according to the third embodiment will be described, and finally the effects of the third embodiment will be described. A modified example will be described.

[System configuration (Example 3)]
Initially, the structure of the mail service system based on Example 3 is demonstrated using FIG. FIG. 11 is a system configuration diagram illustrating the overall configuration of the mail service system according to the third embodiment. As shown in the figure, this system communicates a user terminal 10a, a user terminal 10b, an address issuing center 60, and a mail transfer center 70 with each other via a network 1 such as the Internet or a LAN. Connected and configured.

  Among these, the user terminal 10a and the user terminal 10b are basically the same as the user terminal 10a and the user terminal 10b described in the first embodiment. However, the user terminal 10a has a role of encrypting the address A, a role of passing the encrypted address A to the user terminal 10b, and the like. That is, as shown in FIG. 11, the user terminal 10a includes a public key holding unit 15 and an address encryption unit 16, which are closely related to the present invention.

  Here, the public key holding unit 15 is a memory that holds a public key used for encryption of an address A described later. This public key is the public key of the address issuing center 60 obtained from the address issuing center 60. The mail transfer center 70 described later also uses the same public key (key for encrypting the address A and the address B). Hold.

  The address encryption unit 16 is a processing unit that encrypts the address A using the public key held by the public key holding unit 15. Specifically, the encrypted address E (A) is generated by encrypting the address A of the user A using the encryption function E using the public key. The generated encrypted address E (A) is transferred to the user terminal 10b together with the transfer condition C.

  Returning to FIG. 11, the address issuing center 60 corresponds to the address issuing center 30 described in the first embodiment and basically has the same function. That is, the communication unit 61 and the address generation unit 62 illustrated in FIG. 11 perform basically the same functions as the communication unit 31 and the address generation unit 32 illustrated in FIG. The communication unit 61 corresponds to the address code receiving unit of claim 7, and the address generation unit 62 corresponds to the address generation unit of claim 7.

  However, in the third embodiment, the communication unit 61 receives the address issuance request (address B, encrypted address E (A), transfer condition C) from the user terminal 10b, and uses the issued address TB as the user terminal 10b. Execute the process to send to.

  The address generation unit 62 generates only the address TB out of the address TA and the address TB based on the address issue request (address B, encrypted address E (A), transfer condition C) received from the user terminal 10b. To do. Specifically, as illustrated in FIG. 12A, the encrypted address E (A) as the source restriction, the address B as the destination and the transfer condition C are encrypted with the encryption function P, and the user name is changed. The address TB is generated by adding the domain name corresponding to the mail transfer center 70 to the generated address.

  Returning to FIG. 11, the mail transfer center 70 corresponds to the mail transfer center 40 described in the first embodiment, and basically has the same function. That is, the communication unit 71, the address restoration unit 72, the transfer determination unit 73, the address generation unit 74, and the address replacement unit 75 illustrated in FIG. 11 are the same as the communication unit 41, the address restoration unit 42, the transfer determination unit 43, and the like illustrated in FIG. It basically performs the same function as the address generation unit 44 and the address replacement unit 45. The address generation unit 74 corresponds to a user A address generation unit according to a thirteenth aspect.

  However, in the third embodiment, the address restoration unit 72 decrypts the user name portion of the address TB and extracts the encrypted address E (A) limited to the caller, the address B as the destination, and the transfer condition C. . In addition, for the mail having the address TA as the destination, the encrypted address E (B) limited to the caller, the address A as the destination and the transfer condition C are extracted by decryption.

  The transfer determination unit 73 is a processing unit that determines whether the mail satisfies the caller limitation and the transfer condition C. For the caller limitation, the encrypted address E (A) extracted from the address TB is used. Then, it is determined whether or not the encrypted address generated by encrypting the mail source address in the same manner as the user terminal 10a matches. Similarly, when a mail having the address TA as the destination is received, the encrypted address E (B) extracted from the address TA and the encrypted address generated by encryption in the same manner as the user terminal 10a, It is determined whether or not.

  The address generation unit 74 is a processing unit that generates an address that is a transmission source of the mail to be transferred. For example, when a mail having the address TA as a destination is received, the address generation center 60 generates an address. Processing similar to that of the unit 62 is executed to generate an address TB. In addition, when a mail having the address TB as the destination is received, an encrypted address E (B) limited to the sender is generated, and then this encrypted address E (B), the address A as the destination, and The transfer condition C is encrypted with the encryption function P to generate a user name, and a domain name corresponding to the mail transfer center 70 is added thereto to create an address TA.

[Processing procedure according to embodiment 3 (address generation processing, mail transfer processing)]
Next, a processing procedure (address generation processing, mail transfer processing) according to the third embodiment will be described with reference to FIG. FIG. 13 is a flowchart illustrating a processing procedure according to the third embodiment.

  As shown in the figure, the user terminal 10 a obtains a public key from the address issuing center 60 and holds it in the public key holding unit 15. Then, the user terminal 10a generates the encrypted address E (A) by encrypting the address A using the public key held by the public key holding unit 15 (step S1301).

  Subsequently, the user terminal 10a delivers the encrypted address E (A) and the transfer condition C to the user terminal 10b via an arbitrary communication path such as infrared communication (step S1302). The user terminal 10b outputs and displays the transfer condition C and the encrypted address E (A) received from the user terminal 10a on a monitor or the like, thereby considering whether or not to issue another address issue request. .

  When the address issuance center 60 receives an address issuance request (address B, encrypted address E (A), transfer condition C) from the user terminal 10b (step S1303), the encrypted address E ( A) The address B as the destination and the transfer condition C are encrypted with the encryption function P to create the address TB (step S1304).

  Subsequently, the address issuing center 60 transmits the generated address TB to the user terminal 10b (step S1305). Then, the user terminal 10b delivers the address TB to the user terminal 10a via an arbitrary communication path such as infrared communication (step S1306). As a result, as long as the address TB is valid, the user A transmits a mail to the user B. Note that the address issuing center 60 may directly transmit the address TB to the user terminal 10a.

  On the other hand, when the mail transfer center 70 receives a mail addressed to the address TB from the user terminal 10a via the user A side mail server (step S1307), the encrypted address E (A) from the address TB. The address B and the transfer condition C are restored (step S1308). Then, based on the restored address E (A) and the transfer condition C, it is determined whether or not the mail satisfies the caller limitation and the transfer condition C (step S1309).

  As a result, when it is determined that the caller limitation and the transfer condition C are satisfied, the mail transfer center 70 generates an address that is a transmission source of the mail to be transferred (step S1310). That is, after generating an encrypted address E (B) limited to the sender, the encrypted address E (B), the address A as the destination and the transfer condition C are encrypted with the encryption function P, and the user name is obtained. The address TA is created by adding the domain name corresponding to the mail transfer center 70 to the generated address. When it is determined that the caller limitation or the transfer condition C is not satisfied, the mail is discarded.

  Subsequently, the mail transfer center 70 replaces the mail source and destination addresses (step S1311). Specifically, the mail destination (To address) is replaced with address B, and the mail source (From address) is replaced with address TA. Then, the mail transfer center 70 transfers the mail whose address has been replaced in this way to the user terminal 10b via the user B side mail server (step S1312).

  As a result, as long as the address TA is valid, the user B also sends an email to the user A. In the above description, the case where the user A transmits an email to the user B using the address TB has been described as an example. However, the case where the user B transmits an email to the user A using the address TA. Are similarly processed. The same process is performed when the user B replies to the mail transmitted in step S1312, as described above.

(Effect of Example 3)
As described above, according to the third embodiment, while the real addresses of the user A and the user B are kept secret from each other, the “address A addressed to the user A” and the “user B” are transmitted through the encrypted address E (A). "Address address TB" is generated, and mails with this address can be sent and received as real addresses as usual, so users can communicate based on real addresses while keeping their real addresses secret It becomes possible to do.

  In addition, according to the third embodiment, by generating the address TB independently of the generation of the address TA, it is desired to establish only one-way communication (from the user A to the user B) quickly. It is possible to respond to the user's request such as is sufficient. Furthermore, by generating the address TA according to the normal call processing by the user A, the user B can easily acquire the address TA simply by performing the normal call processing.

  Further, according to the third embodiment, pre-processing such as a user receiving a session ID is not required prior to user exchange (access code delivery), and each user acquires an address with few exchanges. Is possible. Furthermore, it becomes possible to eliminate the management burden such as the session ID issued in the preprocessing.

  Further, according to the third embodiment, it is possible to generate an address that is more difficult to decipher by generating the address using the encrypted address instead of the actual address itself.

[Modification of Example 3]
In the third embodiment, the case where the user terminal 10a independently generates the encrypted address E (A) has been described. However, as in the second embodiment, the cooperation between the user A and the user B is described. A random number generated by operation may be associated with the encrypted address E (A). In this case, as illustrated in FIG. 12-2, an address TB including a random number is generated. This ensures the anonymity of the user A and allows the user A to obtain a ticket of another person. Can be avoided.

  In the third embodiment described above, the case where the real address is encrypted has been described. However, instead of the encryption, the address code may be generated using a one-way hash function capable of matching determination. In this case, a one-way hash function is used in the same way for the transfer determination in the mail transfer center 70.

  In the fourth embodiment, the case where the address A is received from the user A, the temporary address XA is issued, and the mail addressed to the temporary address XA is received from the terminal of the user B to generate the address TB is described. To do. In the following, after describing the configuration of the mail service system according to the fourth embodiment, the processing procedure according to the fourth embodiment (address generation processing procedure, mail transfer processing procedure) will be described. Finally, the effects of the fourth embodiment will be described. A modified example will be described.

[System configuration (Example 4)]
Initially, the structure of the mail service system based on Example 4 is demonstrated using FIG. FIG. 14 is a system configuration diagram illustrating the overall configuration of the mail service system according to the fourth embodiment. As shown in the figure, this system includes a user terminal 10a, a user terminal 10b, a temporary address issuing center 80, a temporary mail transfer center 90, and a mail transfer center 40, such as a network such as the Internet or a LAN. 1 are configured to be communicable with each other.

  Among these, the mail transfer center 40 is the same device as the mail transfer center 40 described in the first embodiment, and has the same configuration as this and performs the same processing.

  The user terminal 10a and the user terminal 10b are basically the same as the user terminal 10a and the user terminal 10b described in the first embodiment. However, the user terminal 10a has a role of accessing the temporary address issuing center 80 and receiving a temporary address to be described later.

  The temporary address issuing center 80 is one of the devices of a business that supports the address exchange between the user A and the user B. As shown in FIG. 14, the temporary address issuing center 80 is closely related to the present invention. And a temporary address generation unit 82. The temporary address issuing center 80 and a temporary mail transfer center 90 described later are realized by known server computers. The temporary address generation unit 82 corresponds to a temporary address issuing unit.

  Here, the communication unit 81 is a processing unit that controls communication with the user terminal 10a or the like in accordance with a so-called HTTP communication protocol, and more specifically, a temporary address issue request (address A, another address). Issuance deadline (expiration date of temporary address XA), mail transfer condition C) with another address as destination, processing to receive from user terminal 10a, processing to send issued temporary address XA to user terminal 10a, etc. Execute.

  The temporary address generation unit 82 is a processing unit that issues a temporary address XA based on a temporary address issue request (address A, another address issue deadline, transfer condition C) received from the user terminal 10a. Specifically, as illustrated in FIG. 15, a user name is generated by encrypting an address A as a destination, an issuance time limit of another address, and a transfer condition C with an encryption function X, and a temporary mail described later A temporary address XA is created by adding a domain name corresponding to the transfer center 90.

  Returning to FIG. 14, the temporary mail transfer center 90 is one of the devices of a business that supports the address exchange between the user A and the user B, and is closely related to the present invention as shown in FIG. The communication unit 91, the temporary address restoration unit 92, the temporary address verification unit 93, the address generation unit 94, and the address replacement unit 95 are provided. The communication unit 91 corresponds to the outgoing request accepting unit of claim 8, the temporary address restoring unit 92 and the temporary address verifying unit 93 correspond to the temporary address verifying unit of claim 8, and the address generating unit 94 of the eighth aspect. Corresponds to the address generation means.

  Among these, the communication unit 91 is a processing unit that receives and transmits a mail addressed to the temporary address XA issued by the temporary address issuing center 80. Specifically, a process for receiving a mail addressed to the temporary address XA from the user terminal 10b (more specifically, a mail server on the user B side), a mail addressed to the user terminal 10a. More specifically, processing to be transmitted to the user A side mail server is executed.

  The temporary address restoring unit 92 is a processing unit that restores the address A, the issuance time limit of another address, and the transfer condition C from the temporary address XA that is the mail destination. Specifically, it has the same master key as that of the temporary address issuing center 80, and using this master key, the user name portion of the temporary address XA is decrypted to extract the address A, the expiration date of another address, and the transfer condition C. To do.

  The temporary address verification unit 93 is a processing unit that verifies whether or not the temporary address XA that is the destination of the mail is normally issued by the temporary address issuing center 80. Specifically, if the mail reception date is before the “issue deadline” extracted from the temporary address XA, it is determined that the mail has been issued normally. If it is not determined that the temporary address XA has been issued normally, the fact that the temporary address XA is invalid is transmitted to the user terminal 10b, and the process is terminated without issuing the address TB.

  The address generation unit 94 is a processing unit that generates the address TB based on the address A and the transfer condition C extracted from the temporary address, and the address B that is the mail source. Specifically, as illustrated in FIG. 15, a user name is generated by encrypting an address A as a source limit, an address B as a destination, and a transfer condition C with an encryption function P, and forwarding a mail to this An address TB is created by adding a domain name corresponding to the center 40.

  The address replacement unit 95 is a processing unit that replaces the mail source and destination addresses. Specifically, the mail destination (To address) is replaced with address A, and the mail source (From address) is replaced with address TB. The mail whose address has been replaced in this way is transferred to the user terminal 10a by the communication unit 91.

[Processing procedure according to embodiment 3 (address generation processing, mail transfer processing)]
Next, a processing procedure (address generation processing, mail transfer processing) according to the fourth embodiment will be described with reference to FIG. FIG. 16 is a flowchart illustrating a processing procedure according to the fourth embodiment.

  As shown in the figure, when the temporary address issuance center 80 receives a temporary address issuance request (address A, issuance time limit of another address, transfer condition C) from the user terminal 10a (step S1601), the address A, another address Issuance deadline and transfer condition C are encrypted with the encryption function X to create a temporary address XA (step S1602). Then, the generated temporary address XA is transmitted to the user terminal 10a (step S1603).

  The user A who has received the temporary address XA operates the user terminal 10a, and passes the temporary address XA to the user terminal 10b via an arbitrary communication path (step S1604). For example, the user terminal 10a and the user terminal 10b are connected by infrared communication and handed over the temporary address XA, or the temporary address XA output and displayed on the user terminal 10a is orally communicated to the user B. For example, it is input to the terminal 10b.

  On the other hand, when the temporary mail transfer center 90 receives a mail addressed to the temporary address XA from the user terminal 10b (step S1605), the temporary mail XA restores the address A, the issuance deadline of another address, and the transfer condition C from the temporary address XA. (Step S1606). Then, it is verified whether or not the temporary address XA is normally issued by the temporary address issuing center 80 (step S1607).

  As a result, if the mail reception date / time is before the “issuance deadline” extracted from the temporary address XA, it is determined that the mail has been issued normally, the address A and the transfer condition C extracted from the temporary address, and the mail sender The address TB is generated based on the address B that is (step S1608). If it is not determined that the temporary address XA has been issued properly, a message indicating that the temporary address XA is invalid is transmitted to the user terminal 10b.

  Subsequently, the temporary mail transfer center 90 replaces the mail source and destination addresses (step S1609). Specifically, the mail destination (To address) is replaced with address A, and the mail source (From address) is replaced with address TB. Then, the temporary mail transfer center 90 transfers the mail whose address has been replaced in this way to the user terminal 10a via the user A side mail server (step S1610). As a result, as long as the address TB is valid, the user A transmits a mail to the user B.

  Further, when the mail transfer center 40 receives a mail addressed to the address TB from the user terminal 10a via the user A side mail server (step S1611), the mail transfer center 40 receives the sender address A and the call destination from the address TB. Address B and transfer condition C are restored (step S1612). Then, based on the restored address A and transfer condition C, it is determined whether or not the mail satisfies the caller limitation and the transfer condition C (step S1613).

  As a result, when it is determined that the caller limitation and the transfer condition C are satisfied, the mail transfer center 40 generates an address that is a transmission source of the mail to be transferred (step S1614). That is, as illustrated in FIG. 15, the address TA is created by encrypting the address B as the source restriction, the address A as the destination, and the transfer condition C with the encryption function P. When it is determined that the caller limitation or the transfer condition C is not satisfied, the mail is discarded.

  Subsequently, the mail transfer center 40 replaces the mail source and destination addresses (step S1615). Specifically, the mail destination (To address) is replaced with address B, and the mail source (From address) is replaced with address TA. Then, the mail transfer center 40 transfers the mail whose address has been replaced in this way to the user terminal 10b via the user B side mail server (step S1616). As a result, as long as the address TA is valid, the user B also sends an email to the user A.

[Effects of Example 4 and the like]
As described above, according to the fourth embodiment, while the real addresses of the user A and the user B are kept secret from each other, the “user A address TA” and the “user B address TB” are transmitted through the temporary address XA. Can be sent and received by the real address as usual, so that users can communicate based on the real address while keeping each other's real address secret. become.

  Further, according to the fourth embodiment, it is not necessary for the user to perform complicated processing such as encrypting and transmitting the real address, and the user can acquire the address by simple processing. Furthermore, by generating the address TB independently from the generation of the address TA, it is desired to establish only one-way communication (from the user A to the user B) immediately, or only one-way communication is sufficient. It becomes possible to respond to the request of the person.

  Further, according to the fourth embodiment, it is possible to generate an address only by a normal transmission process using a temporary address as a destination without requiring a complicated process from the user B. Furthermore, it is not necessary to save the temporary address issued in the preprocessing, and it becomes possible to eliminate the management burden.

  In the above-described fourth embodiment, the case where the issuance time limit of another address is embedded in the temporary address XA has been described. However, the present invention is not limited to this issuance time limit, and the transfer condition C ′ to be satisfied by the mail addressed to the temporary address XA. In this form, a condition that specifies an expiration date (or validity period) for permitting the transfer of mail, an originating domain for permitting the transfer of mail, a start date for permitting the transfer of mail, and the like may be embedded. That is, in this case, for the mail addressed to the temporary address XA, the transfer condition C ′ is determined at the time of transfer. When the transfer condition C ′ is satisfied, the transfer condition C ′ is replaced with the above transfer condition C ′. The address TA in which the condition C (the transfer condition to be satisfied by the mail having the address TA as the destination) is embedded is generated.

  In the fourth embodiment, the provisional mail transfer center 90 and the mail transfer center 40 are separately provided. However, the temporary mail transfer center 90 and the mail transfer center 40 are integrated to form a single mail server. Depending on whether or not, different processing may be performed.

  Although the embodiments of the present invention have been described above, the present invention may be implemented in various different forms within the scope of the technical idea described in the claims other than the embodiments described above. It is. Accordingly, various different embodiments will be described as a fifth embodiment.

  For example, in the above-described embodiment, a case has been described in which a real address is received from a user in order to specify a caller limitation or a destination and the real address is embedded in the address TA or the address TB. However, the present invention is not limited to this. For example, an address identifier such as a user ID that can uniquely specify a real address, or information that can limit a real address such as a hash value generated from the address identifier or the real address is used. It may be used instead of the address.

  More specifically, taking “AfromB” shown in FIG. 3 as an example, for “A”, not only the real address of A but also the user ID is used instead to specify the destination. For “B”, not only the real address of B but also the user ID or hash value may be used instead to limit the source. However, when an address identifier such as a user ID is used instead, a table in which the user ID is associated with the real address is provided, so that the conversion from the user ID to the destination address and the user ID to the source address are performed. Conversion (determination only for the caller). In this way, by embedding an address identifier or hash value in the address TA or address TB instead of the real address, it is possible to definitely make the data length of the address equal to or less than a certain length.

  In the above-described embodiment, the case where another address (address TA or address TB) as a mail address is generated has been described. However, the present invention is not limited to this, and a messenger ID or a telephone number (fixed telephone). The present invention can also be applied to the case where another address for an address such as an IP phone, a mobile phone, and a PHS is generated.

  In the above-described embodiment, another address (address TA or address TB) is generated on condition that information corresponding to the real address (session ID, ticket, address code, temporary address) is passed between users. However, it is not necessarily limited to passing information between users. For example, the center is used as an intermediary to connect both users and directly accept the real address from both to generate another address. You may do it. That is, if the real addresses (or address identifiers or hash values) of both the user A and the user B are kept secret from each other, and another address (address TA or address TB) is generated. The present invention can be similarly applied.

  In addition, when information corresponding to the real address is transferred between users, another address can be generated within a free range by free transfer between users. On the other hand, when the center is used as an intermediary Can generate another address only by linking the two without waiting for information to be exchanged between users.

  In addition, among the processes described in the above embodiments, all or part of the processes described as being performed automatically can be manually performed, or the processes described as being performed manually. All or a part of the above can be automatically performed by a known method. In addition, the processing procedures, control procedures, specific names, and information including various data and parameters shown in the above-mentioned documents and drawings (especially information related to the transfer condition C) are optional unless otherwise specified. Can be changed.

  In addition, each component of each apparatus (address exchange center, address issuing center, mail transfer center, etc.) illustrated in the above embodiment is functionally conceptual and is not necessarily physically configured as illustrated. Is not required. In other words, the specific form of distribution / integration of each device is not limited to that shown in the figure, and all or a part thereof may be functionally or physically distributed or arbitrarily distributed in arbitrary units according to various loads or usage conditions. Can be integrated and configured. Further, all or any part of each processing function performed in each device may be realized by a CPU and a program analyzed and executed by the CPU, or may be realized as hardware by wired logic.

  In the above embodiment, each device (address exchange center, address issuing center, mail transfer center, etc.) that implements the present invention has been described in terms of functions. However, each function of each device can be a personal computer, a workstation, or the like. It can also be realized by causing a computer to execute a program. That is, the various processing procedures described in the present embodiment can be realized by executing a program prepared in advance on a computer. These programs can be distributed via a network such as the Internet. Further, these programs can be recorded on a computer-readable recording medium such as a hard disk, a flexible disk (FD), a CD-ROM, an MO, and a DVD, and can be executed by being read from the recording medium by the computer. That is, for example, a CD-ROM (a separate CD-ROM for each apparatus) storing the address exchange center 20 program, the address issuing center 30 program, and the mail transfer center 40 program as shown in the first embodiment. May be distributed, and each computer may read and execute the program stored in the CD-ROM.

  As described above, the address generation system, the address generation method, and the address generation program according to the present invention are useful when generating a communication address in response to a request from a user who requests communication. It is suitable for communicating based on a real address while keeping each other's real address secret.

1 is a system configuration diagram illustrating an overall configuration of a mail service system according to Embodiment 1. FIG. It is a figure which shows the structural example of the information memorize | stored in a session ID table. It is a figure which shows the structural example of an address. 6 is a flowchart illustrating an address generation processing procedure according to the first embodiment. 6 is a flowchart illustrating a mail transfer processing procedure according to the first embodiment. FIG. 10 is a diagram for explaining a processing procedure according to a modification of the first embodiment. FIG. 10 is a diagram for explaining a processing procedure according to a modification of the first embodiment. It is a system configuration | structure figure which shows the whole structure of the mail service system which concerns on Example 2. FIG. It is a figure which shows the structural example of a ticket. 10 is a flowchart illustrating an address generation processing procedure according to the second embodiment. FIG. 10 is a system configuration diagram illustrating an overall configuration of a mail service system according to a third embodiment. It is a figure which shows the structural example of an address. It is a figure which shows the structural example of an address. 10 is a flowchart illustrating a processing procedure according to a third embodiment. FIG. 10 is a system configuration diagram illustrating an overall configuration of a mail service system according to a fourth embodiment. It is a figure which shows the structural example of an address. 10 is a flowchart illustrating a processing procedure according to a fourth embodiment.

Explanation of symbols

1 Network 10a User terminal (User A)
10b User terminal (User B)
DESCRIPTION OF SYMBOLS 20 Address exchange center 21 Communication part 22 Session ID table 23 Session ID issuing part 24 Session ID verification part 30 Address issuing center 31 Communication part 32 Address generation part 40 Mail transfer center 41 Communication part 42 Address restoration part 43 Transfer determination part 44 Address generation Part 45 Address replacement part

Claims (31)

A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
An identifier issuing means for receiving a real address or an address identifier of the user A from the terminal of the user A and issuing a predetermined identifier;
Identifier accepting means for accepting an identifier issued by the identifier issuing means and passed from user A to user B together with the real address or address identifier of user B from the terminal of user B;
Identifier verification means for verifying whether or not the identifier received by the identifier reception means is normally issued by the identifier issuing means;
When it is recognized by the identifier verification means that it has been issued normally, the real address or address identifier received from the terminal of user A and user B, respectively, is used to limit the real user A Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B address concealed and addressed to user B, and source limited User B's real address or address identifier or information generated from them, and user A's real address or address identifier or information generated from them as a destination, concealed and embedded in user A First address generation means for generating an address;
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated by the first address generating means, the address addressed to user A or user B A restoring means for restoring, from the destination address, a real address or address identifier as a source limitation or information generated therefrom, and a real address or address identifier as a destination or information generated therefrom;
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
If it is determined by the transfer determining means that transfer is possible, the information restored by the restoring means and the source address of the communication request are used. A second address generating means for generating an address addressed to the user B and generating an address addressed to the user A if the destination of the communication request is an address addressed to the user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration means, and the source of the communication request is generated by the user A generated by the second address generation means. A transfer means that replaces the address or the address addressed to the user B and transfers the communication request to the destination after the replacement;
A communication system comprising: A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
The real address or address identifier of the user A is received from the terminal of the user A and the predetermined identifier a is issued. The real address or address identifier of the user B is received from the terminal of the user B and the predetermined identifier is received. identifier issuing means for issuing b;
The identifier a issued by the identifier issuing means and transferred from the user A to the user B is received from the terminal of the user B together with the real address or address identifier of the user B, and issued by the identifier issuing means. An identifier receiving means for receiving the identifier b which has been transferred from the user B to the user A together with the real address or address identifier of the user A from the terminal of the user A;
Identifier verification means for verifying whether the identifier a and the identifier b received by the identifier reception means are normally issued by the identifier issuing means;
When it is recognized by the identifier verification means that it has been issued normally, the real address or address identifier received from the terminal of user A and user B, respectively, is used to limit the real user A Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B address concealed and addressed to user B, and source limited User B's real address or address identifier or information generated from them, and user A's real address or address identifier or information generated from them as a destination, concealed and embedded in user A First address generation means for generating an address;
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated by the first address generating means, the address addressed to user A or user B A restoring means for restoring, from the destination address, a real address or address identifier as a source limitation or information generated therefrom, and a real address or address identifier as a destination or information generated therefrom;
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
If it is determined by the transfer determining means that transfer is possible, the information restored by the restoring means and the source address of the communication request are used. A second address generating means for generating an address addressed to the user B and generating an address addressed to the user A if the destination of the communication request is an address addressed to the user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration means, and the source of the communication request is generated by the user A generated by the second address generation means. A transfer means that replaces the address or the address addressed to the user B and transfers the communication request to the destination after the replacement;
A communication system comprising: A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
An identifier issuing means for receiving a real address or an address identifier of the user A from the terminal of the user A and issuing a predetermined identifier;
Identifier accepting means for accepting an identifier issued by the identifier issuing means and passed from user A to user B together with the real address or address identifier of user B from the terminal of user B;
An identifier verification unit that verifies whether the identifier received by the identifier reception unit is normally issued by the identifier issuing unit;
When the identifier verifying means confirms that the identifier has been issued normally, the user A and the user A as the sender are limited using the real addresses or address identifiers received from the terminals of the user A and the user B, respectively. A real address or address identifier of the user B or information generated therefrom and an address of the user B as an incoming call destination or the address generated by the user B, and the address generated by the user B. 1 address generation means;
When a communication request with the user B address generated by the first address generation means as the destination is received from the user's terminal, the user B address is used to specify the real address A restoring means for restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
When it is determined that the transfer is possible by the transfer determination unit, the real address or address identifier of the user B as a source limitation or these using the information restored by the restoration unit and the source address of the communication request A second address generating means for generating an address addressed to user A in which the information generated from the information and the real address or address identifier of user A as the destination or the information generated from these are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration means, and the source of the communication request is generated by the second address generation means. A transfer means that replaces the address addressed to user A and forwards the communication request to the destination after the replacement;
A communication system comprising: A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
A ticket delivered from user A to user B after the real address or address identifier of user A is encrypted with a predetermined key by the terminal of user A is sent to user B's Ticket receiving means for receiving from the terminal of user B together with the real address or address identifier;
Ticket verifying means for verifying whether or not the ticket received by the ticket receiving means is normally issued with the predetermined key;
User B's real address or address identifier received from user B's terminal and user A's real address or address decrypted from the ticket when the ticket verification means confirms that the ticket has been issued normally The identifier is used to conceal the real address or address identifier of user A as limited to the transmission source or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. However, the address addressed to the user B, and the real address or address identifier of the user B as the source limited or information generated from them and the real address or address identifier of the user A as the destination or from these Each information to be generated is hidden and buried A first address generating means for generating a user A addressed to the address I,
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated by the first address generating means, the address addressed to user A or user B A restoring means for restoring, from the destination address, a real address or address identifier as a source limitation or information generated therefrom, and a real address or address identifier as a destination or information generated therefrom;
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
If it is determined by the transfer determining means that transfer is possible, the information restored by the restoring means and the source address of the communication request are used. A second address generating means for generating an address addressed to the user B and generating an address addressed to the user A if the destination of the communication request is an address addressed to the user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration means, and the source of the communication request is generated by the user A generated by the second address generation means. A transfer means that replaces the address or the address addressed to the user B and transfers the communication request to the destination after the replacement;
A communication system comprising: A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
The ticket A which is issued by encrypting the real address or address identifier of the user A with a predetermined key by the terminal of the user A and then delivered to the user B from the user A is used as the user B From the user B's terminal together with the real address or address identifier of the user B and after being issued by the user B's terminal encrypting the real address or address identifier of the user B with a predetermined key. Ticket accepting means for accepting the ticket b delivered to the user A from the terminal of the user A together with the real address or address identifier of the user A;
Ticket verification means for verifying whether or not the ticket a and the ticket b received by the ticket reception means are normally issued with the predetermined key;
When it is confirmed that the ticket has been issued by the ticket verification means, the actual address or address identifier received from each of the user A and user B terminals is used, and user A's Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B as a destination, concealed and embedded in user B address, and source limited User B's real address or address identifier or information generated from them and user A's real address or address identifier or information generated from them as a destination is addressed to user A in a concealed manner. First address generation means for generating an address;
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated by the first address generating means, the address addressed to user A or user B A restoring means for restoring, from the destination address, a real address or address identifier as a source limitation or information generated therefrom, and a real address or address identifier as a destination or information generated therefrom;
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
If it is determined by the transfer determining means that transfer is possible, the information restored by the restoring means and the source address of the communication request are used. A second address generating means for generating an address addressed to the user B and generating an address addressed to the user A if the destination of the communication request is an address addressed to the user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration means, and the source of the communication request is generated by the user A generated by the second address generation means. A transfer means that replaces the address or the address addressed to the user B and transfers the communication request to the destination after the replacement;
A communication system comprising: A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
A ticket delivered from user A to user B after the real address or address identifier of user A is encrypted with a predetermined key by the terminal of user A is sent to user B's Ticket receiving means for receiving from the terminal of user B together with the real address or address identifier;
Ticket verifying means for verifying whether or not the ticket received by the ticket receiving means is normally issued with the predetermined key;
User B's real address or address identifier received from User B's terminal and user A's real address or address decrypted from the ticket when the ticket verification means confirms that it has been issued normally The identifier is used to conceal the real address or address identifier of user A as the source only or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. First address generating means for generating an address addressed to the user B embedded,
When a communication request with the user B address generated by the first address generation means as the destination is received from the user's terminal, the user B address is used to specify the real address A restoring means for restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
When it is determined that the transfer is possible by the transfer determination unit, the real address or address identifier of the user B as a source limitation or these using the information restored by the restoration unit and the source address of the communication request A second address generating means for generating an address addressed to user A in which the information generated from the information and the real address or address identifier of user A as the destination or the information generated from these are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration means, and the source of the communication request is generated by the second address generation means. A transfer means that replaces the address addressed to user A and forwards the communication request to the destination after the replacement;
A communication system comprising: A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
The user B's real address or address identifier and the address code passed from the user A to the user B after being issued as an argument with the user A's real address or address identifier and the predetermined key as an argument Or an address code receiving means for receiving from the terminal of the user B together with the address identifier;
The address code received by the address code accepting means is embedded as a source restriction, and the real address or address identifier of the user B as the destination and the address addressed to the user B embedded while concealing information generated therefrom First address generating means for generating;
When a communication request having the destination addressed to the user B generated by the first address generating means as a destination is received from the user terminal, an address code limited to the transmission source from the address addressed to the user B, and A restoring means for restoring a real address or an address identifier as a destination or information generated from them,
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
When it is determined that the transfer is possible by the transfer determination unit, the real address or address identifier of the user B and a predetermined key are used as arguments using the information restored by the restoration unit and the source address of the communication request Secondly, an address code to be issued is embedded as a limited source, and a real address or address identifier of the user A as a destination is generated or an address to the user A is embedded while concealing information generated from these. An address generation means;
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration means, and the source of the communication request is generated by the second address generation means. A transfer means that replaces the address addressed to user A and forwards the communication request to the destination after the replacement;
A communication system comprising: A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
Temporary address issuing means for receiving the real address or address identifier of the user A from the terminal of the user A, and issuing a temporary address embedded while concealing the real address or address identifier of the user A as a destination;
A call request accepting means for accepting a call request with the temporary address generated by the separate address generating means as a destination, from the user B terminal;
Temporary address verification means for verifying whether or not the temporary address included in the outgoing request received by the outgoing request reception means is normally issued by the temporary address issuing means;
When it is confirmed that the temporary address has been issued by the temporary address verification means, the real address or address identifier of the user A embedded in the temporary address and the real address or address of the user B included in the transmission request The identifier is used to conceal the real address or address identifier of user A as limited to the transmission source or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. First address generating means for generating an address addressed to the user B embedded,
When a communication request with the user B address generated by the first address generation means as the destination is received from the user's terminal, the user B address is used to specify the real address A restoring means for restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
When it is determined that the transfer is possible by the transfer determination unit, the real address or address identifier of the user B as a source limitation or these using the information restored by the restoration unit and the source address of the communication request A second address generating means for generating an address addressed to user A in which the information generated from the information and the real address or address identifier of user A as the destination or the information generated from these are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration means, and the source of the communication request is generated by the second address generation means. A transfer means that replaces the address addressed to user A and forwards the communication request to the destination after the replacement;
A communication system comprising: The first and second address generation means further embed a transmission condition to be satisfied by a transmission request having the destination address of the user A and / or the address addressed to the user B as the destination, and the address addressed to the user A and / or Or generate an address for User B ,
The restoration means further restores the transmission condition from the address addressed to the user A or the address addressed to the user B,
The transfer determination unit further determines whether or not the communication request satisfies a transmission condition restored by the restoration unit, and determines whether or not the communication request can be transferred. The communication system as described in any one. The identifier accepting means, ticket accepting means and / or outgoing request accepting means accepts an identifier, a ticket and / or a temporary address associated with a predetermined expiration date,
The identifier verification unit, the ticket verification unit and / or the temporary address verification unit are configured so that the identifier, the ticket and / or the temporary address are properly registered on condition that the identifier, the ticket and / or the temporary address are received within the expiration date. The communication system according to any one of claims 1 to 6, wherein the communication is acknowledged. The ticket accepting means accepts a ticket including a predetermined random number generated by the cooperation of the user A and the user B,
7. The communication system according to claim 4, 5 or 6, wherein the ticket verification means verifies whether or not the ticket is normally issued by further using the predetermined random number. The address code receiving means receives an address code including a predetermined random number generated by the cooperation of the user A and the user B,
8. The communication system according to claim 7, wherein the first and second address generation means generate an address addressed to a user B in which an address code including the predetermined random number is embedded as a source restriction. A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
An identifier issuing step for accepting the real address or address identifier of the user A from the terminal of the user A and issuing a predetermined identifier;
An identifier receiving step for receiving an identifier issued by the identifier issuing step and transferred from the user A to the user B together with the actual address or address identifier of the user B from the terminal of the user B;
An identifier verification step for verifying whether the identifier received by the identifier reception step is normally issued by the identifier issue step;
When it is recognized that it has been properly issued by the identifier verification step, the real address or the address identifier received from the terminals of user A and user B, respectively, is used. Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B as a destination, concealed and embedded in user B address, and source limited User B's real address or address identifier or information generated from them and user A's real address or address identifier or information generated from them as a destination is addressed to user A in a concealed manner. A first address generation step of generating an address;
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated in the first address generation step, the address addressed to user A or user B A restoration step of restoring a real address or address identifier as a source restriction or information generated from them and a real address or address identifier as a destination or information generated from them from a destination address;
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible in the transfer determination step, the information restored in the restoration step and the source address of the communication request are used. A second address generating step of generating an address addressed to user B and generating the address addressed to user A if the destination of the communication request is an address addressed to user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration step, and the communication request source is generated by the user A generated by the second address generation step. A transfer step of substituting for the destination address or user B address and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
The real address or address identifier of the user A is received from the terminal of the user A and the predetermined identifier a is issued. The real address or address identifier of the user B is received from the terminal of the user B and the predetermined identifier is received. an identifier issuing step for issuing b;
The identifier a issued by the identifier issuing step and transferred from the user A to the user B is received from the terminal of the user B together with the real address or address identifier of the user B and issued by the identifier issuing step. An identifier receiving step for receiving the identifier b which has been transferred from the user B to the user A together with the real address or address identifier of the user A from the terminal of the user A;
An identifier verification step for verifying whether the identifier a and the identifier b received by the identifier reception step are normally issued by the identifier issue step;
When it is recognized that it has been properly issued by the identifier verification step, the real address or the address identifier received from the terminals of user A and user B, respectively, is used. Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B as a destination, concealed and embedded in user B address, and source limited User B's real address or address identifier or information generated from them and user A's real address or address identifier or information generated from them as a destination is addressed to user A in a concealed manner. A first address generation step of generating an address;
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated in the first address generation step, the address addressed to user A or user B A restoration step of restoring a real address or address identifier as a source restriction or information generated from them and a real address or address identifier as a destination or information generated from them from a destination address;
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible in the transfer determination step, the information restored in the restoration step and the source address of the communication request are used. A second address generating step of generating an address addressed to user B and generating the address addressed to user A if the destination of the communication request is an address addressed to user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration step, and the communication request source is generated by the user A generated by the second address generation step. A transfer step of substituting for the destination address or user B address and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
An identifier issuing step for accepting the real address or address identifier of the user A from the terminal of the user A and issuing a predetermined identifier;
An identifier receiving step for receiving an identifier issued by the identifier issuing step and transferred from the user A to the user B together with the actual address or address identifier of the user B from the terminal of the user B;
An identifier verification step for verifying whether the identifier received by the identifier reception step is normally issued by the identifier issue step;
When it is recognized that the identifier has been properly issued by the identifier verification step, the user A as the sender is limited using the real address or the address identifier received from the terminals of the user A and the user B, respectively. A real address or address identifier of the user B or information generated therefrom and an address of the user B as an incoming call destination or the address generated by the user B, and the address generated by the user B. 1 address generation process;
When a communication request with the user B address generated by the first address generation step as a destination is received from the user's terminal, the real address or source address limited from the user B address A restoring step of restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that the transfer is possible in the transfer determination step, the real address or address identifier of the user B as the source limitation or these using the information restored in the restoration step and the source address of the communication request A second address generation step of generating an address addressed to the user A in which the information generated from the information and the real address or address identifier of the user A as the destination or the information generated from the information are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration step, and the source of the communication request is generated by the second address generation step. A transfer step of substituting for the address addressed to user A and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
A ticket delivered from user A to user B after the real address or address identifier of user A is encrypted with a predetermined key by the terminal of user A is sent to user B's A ticket receiving step for receiving from the terminal of user B together with the real address or address identifier;
A ticket verification step for verifying whether or not the ticket received by the ticket reception step is normally issued with the predetermined key;
The user B's real address or address identifier received from the user B's terminal and the user A's real address or address decrypted from the ticket when the ticket verification process confirms that it has been issued normally The identifier is used to conceal the real address or address identifier of user A as limited to the transmission source or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. However, the address addressed to the user B, and the real address or address identifier of the user B as the source limited or information generated from them and the real address or address identifier of the user A as the destination or from these Each information to be generated is hidden and buried A first address generation step of generating a user A addressed to the address I,
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated in the first address generation step, the address addressed to user A or user B A restoration step of restoring a real address or address identifier as a source restriction or information generated from them and a real address or address identifier as a destination or information generated from them from a destination address;
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible in the transfer determination step, the information restored in the restoration step and the source address of the communication request are used. A second address generating step of generating an address addressed to user B and generating the address addressed to user A if the destination of the communication request is an address addressed to user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration step, and the communication request source is generated by the user A generated by the second address generation step. A transfer step of substituting for the destination address or user B address and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
A ticket a issued from the user A to the user B after being issued by encrypting the real address or address identifier of the user A with a predetermined key by the terminal of the user A is transferred to the user B From the user B's terminal together with the real address or address identifier of the user B and after being issued by the user B's terminal by encrypting the real address or address identifier of the user B with a predetermined key. A ticket accepting step of accepting the ticket b delivered to the user A from the user A terminal together with the real address or address identifier of the user A;
A ticket verification step for verifying whether or not the ticket a and the ticket b received by the ticket reception step are normally issued with the predetermined key;
When it is confirmed that the ticket has been issued in the ticket verification process, the real address or address identifier received from each of the user A and user B terminals is used to determine the real user A Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B address concealed and addressed to user B, and source limited User B's real address or address identifier or information generated from them, and user A's real address or address identifier or information generated from them as a destination, concealed and embedded in user A A first address generation step of generating an address;
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated in the first address generation step, the address addressed to user A or user B A restoration step of restoring a real address or address identifier as a source restriction or information generated from them and a real address or address identifier as a destination or information generated from them from a destination address;
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible in the transfer determination step, the information restored in the restoration step and the source address of the communication request are used. A second address generating step of generating an address addressed to user B and generating the address addressed to user A if the destination of the communication request is an address addressed to user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration step, and the communication request source is generated by the user A generated by the second address generation step. A transfer step of substituting for the destination address or user B address and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
A ticket delivered from user A to user B after the real address or address identifier of user A is encrypted with a predetermined key by the terminal of user A is sent to user B's A ticket receiving step for receiving from the terminal of user B together with the real address or address identifier;
A ticket verification step for verifying whether or not the ticket received by the ticket reception step is normally issued with the predetermined key;
User B's real address or address identifier received from User B's terminal and User A's real address or address decrypted from the ticket when the ticket verification process confirms that it has been issued normally The identifier is used to conceal the real address or address identifier of user A as the source only or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. A first address generation step of generating an address addressed to the user B while being embedded;
When a communication request with the user B address generated by the first address generation step as a destination is received from the user's terminal, the real address or source address limited from the user B address A restoring step of restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that the transfer is possible in the transfer determination step, the real address or address identifier of the user B as the source limitation or these using the information restored in the restoration step and the source address of the communication request A second address generation step of generating an address addressed to the user A in which the information generated from the information and the real address or address identifier of the user A as the destination or the information generated from the information are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration step, and the source of the communication request is generated by the second address generation step. A transfer step of substituting for the address addressed to user A and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
The user B's real address or address identifier and the address code passed from the user A to the user B after being issued with the specified key as an argument are displayed as the real address of the user B. Or an address code receiving step for receiving from the terminal of user B together with the address identifier;
The address code received by the address code receiving step is embedded as a source limited, and the real address or address identifier of the user B as the destination is addressed or the address to the user B embedded while concealing the information generated therefrom A first address generation step to generate;
When a communication request for receiving the address addressed to the user B generated by the first address generation step is received from the user's terminal, the address code limited to the transmission source from the address addressed to the user B, and A restoration step of restoring a real address or an address identifier as a destination or information generated from them,
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination step, the real address or address identifier of the user B and a predetermined key are used as arguments using the information restored by the restoration step and the source address of the communication request Secondly, an address code to be issued is embedded as a source only, and a real address or address identifier of user A as a destination is generated, or an address addressed to user A is embedded while concealing information generated therefrom. An address generation process;
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration step, and the source of the communication request is generated by the second address generation step. A transfer step of substituting for the address addressed to user A and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
A temporary address issuing step of accepting a real address or address identifier of the user A from the terminal of the user A and issuing a temporary address embedded while concealing the real address or address identifier of the user A as a destination;
A call request accepting process for accepting a call request with the temporary address generated by the separate address generating process as a callee from the terminal of the user B;
A temporary address verification step for verifying whether or not the temporary address included in the transmission request received by the transmission request reception step is normally issued by the temporary address issue step;
When it is recognized that the temporary address has been issued by the temporary address verification step, the real address or address identifier of the user A embedded in the temporary address and the real address or address of the user B included in the transmission request The identifier is used to conceal the real address or address identifier of user A as the source only or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. A first address generation step of generating an address addressed to the user B while being embedded;
When a communication request with the user B address generated by the first address generation step as a destination is received from the user's terminal, the real address or source address limited from the user B address A restoring step of restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that the transfer is possible in the transfer determination step, the real address or address identifier of the user B as the source limitation or these using the information restored in the restoration step and the source address of the communication request A second address generation step of generating an address addressed to the user A in which the information generated from the information and the real address or address identifier of the user A as the destination or the information generated from the information are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration step, and the source of the communication request is generated by the second address generation step. A transfer step of substituting for the address addressed to user A and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
An identifier issuing procedure for receiving a real address or an address identifier of the user A from the terminal of the user A and issuing a predetermined identifier;
An identifier acceptance procedure for accepting an identifier issued by the identifier issuance procedure and passed from user A to user B together with the actual address or address identifier of user B from the terminal of user B;
An identifier verification procedure for verifying whether or not the identifier received by the identifier reception procedure is normally issued by the identifier issuing procedure;
When it is confirmed that the ID has been properly issued by the identifier verification procedure, the real address or address identifier received from the terminals of user A and user B, respectively, is used. Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B address concealed and addressed to user B, and source limited User B's real address or address identifier or information generated from them, and user A's real address or address identifier or information generated from them as a destination, concealed and embedded in user A A first address generation procedure for generating an address;
When a communication request is received from the user's terminal using the user A address or the user B address generated by the first address generation procedure, the user A address or user B A restoration procedure for restoring a real address or address identifier as a source limitation or information generated from the destination address, and a real address or address identifier as a destination or information generated from the destination address;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, if the destination of the communication request is an address addressed to the user A using the information restored by the restoration procedure and the source address of the communication request, A second address generation procedure for generating an address for user B, and generating an address for user A if the destination of the communication request is an address for user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the user A generated by the second address generation procedure. A transfer procedure for substituting for the destination address or the address for user B and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
The real address or address identifier of the user A is received from the terminal of the user A and the predetermined identifier a is issued, and the real address or address identifier of the user B is received from the terminal of the user B and the predetermined identifier an identifier issuing procedure for issuing b;
The identifier a issued by the identifier issuing procedure and transferred from the user A to the user B is received from the terminal of the user B together with the real address or address identifier of the user B and issued by the identifier issuing procedure. An identifier acceptance procedure for accepting the identifier b which has been transferred from the user B to the user A together with the real address or address identifier of the user A from the terminal of the user A;
An identifier verification procedure for verifying whether or not the identifier a and the identifier b received by the identifier reception procedure are normally issued by the identifier issuing procedure;
When it is recognized that it has been properly issued by the identifier verification procedure, the real address or address identifier received from the terminal of user A and user B, respectively, is used, and user A's Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B as a destination, concealed and embedded in user B address, and source limited User B's real address or address identifier or information generated from them and user A's real address or address identifier or information generated from them as a destination is addressed to user A in a concealed manner. A first address generation procedure for generating an address;
When a communication request is received from the user's terminal using the user A address or the user B address generated by the first address generation procedure, the user A address or user B A restoration procedure for restoring a real address or address identifier as a source limitation or information generated from the destination address, and a real address or address identifier as a destination or information generated from the destination address;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, if the destination of the communication request is an address addressed to the user A using the information restored by the restoration procedure and the source address of the communication request, A second address generation procedure for generating an address for user B, and generating an address for user A if the destination of the communication request is an address for user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the user A generated by the second address generation procedure. A transfer procedure for substituting for the destination address or the address for user B and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
An identifier issuing procedure for receiving a real address or an address identifier of the user A from the terminal of the user A and issuing a predetermined identifier;
An identifier acceptance procedure for accepting an identifier issued by the identifier issuance procedure and passed from user A to user B together with the actual address or address identifier of user B from the terminal of user B;
An identifier verification procedure for verifying whether the identifier received by the identifier reception procedure is normally issued by the identifier issuing procedure;
When it is recognized that the identifier is properly issued by the identifier verification procedure, the real address or the address identifier received from the terminals of the user A and the user B, respectively, is used to restrict the user A as the sender. A real address or address identifier of the user B or information generated therefrom and an address of the user B as an incoming call destination or the address generated by the user B, and the address generated by the user B. 1 address generation procedure;
When a communication request having the destination addressed to the user B generated by the first address generation procedure as a destination is received from the user's terminal, the real address or the source address limited from the user B address A restoration procedure for restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, using the information restored by the restoration procedure and the source address of the communication request, the real address or address identifier of user B as a source limitation or these A second address generation procedure for generating an address addressed to the user A in which the information generated from the information and the real address or address identifier of the user A as the destination or the information generated from the information are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the second address generation procedure. A transfer procedure for substituting the address for user A and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
After the user A's terminal is issued by encrypting the real address or address identifier of the user A with a predetermined key, the ticket delivered from the user A to the user B is A ticket acceptance procedure to be accepted from User B's terminal together with a real address or an address identifier;
A ticket verification procedure for verifying, using the predetermined key, whether or not the ticket received by the ticket reception procedure is normally issued with the predetermined key;
User B's real address or address identifier received from User B's terminal and User A's real address or address decrypted from the ticket when the ticket verification procedure confirms that it has been issued normally The identifier is used to conceal the real address or address identifier of user A as the source only or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. However, the address addressed to the user B, and the real address or address identifier of the user B as the source limited or information generated from them and the real address or address identifier of the user A as the destination or from these Each information to be generated is hidden and buried A first address generation procedure for generating the user A addressed to the address I,
When a communication request is received from the user's terminal using the user A address or the user B address generated by the first address generation procedure, the user A address or user B A restoration procedure for restoring a real address or address identifier as a source limitation or information generated from the destination address, and a real address or address identifier as a destination or information generated from the destination address;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, if the destination of the communication request is an address addressed to the user A using the information restored by the restoration procedure and the source address of the communication request, A second address generation procedure for generating an address for user B, and generating an address for user A if the destination of the communication request is an address for user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the user A generated by the second address generation procedure. A transfer procedure for substituting for the destination address or the address for user B and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
The ticket A which is issued by encrypting the real address or address identifier of the user A with a predetermined key by the terminal of the user A and then delivered to the user B from the user A is used as the user B From the user B's terminal together with the real address or address identifier of the user B and after being issued by the user B's terminal encrypting the real address or address identifier of the user B with a predetermined key. A ticket acceptance procedure for accepting the ticket b delivered to the user A from the user A terminal together with the real address or address identifier of the user A;
A ticket verification procedure for verifying whether or not the ticket a and the ticket b received by the ticket reception procedure are normally issued with the predetermined key;
When it is confirmed that the ticket has been properly issued by the ticket verification procedure, the real address or the address identifier received from each of the user A and user B terminals is used, and the user A's Address or address identifier or information generated from them and user B's real address or address identifier or address generated by the user B as a destination, concealed and embedded in user B address, and source limited User B's real address or address identifier or information generated from them and user A's real address or address identifier or information generated from them as a destination is addressed to user A in a concealed manner. A first address generation procedure for generating an address;
When a communication request is received from the user's terminal using the user A address or the user B address generated by the first address generation procedure, the user A address or user B A restoration procedure for restoring a real address or address identifier as a source limitation or information generated from the destination address, and a real address or address identifier as a destination or information generated from the destination address;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, if the destination of the communication request is an address addressed to the user A using the information restored by the restoration procedure and the source address of the communication request, A second address generation procedure for generating an address for user B, and generating an address for user A if the destination of the communication request is an address for user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the user A generated by the second address generation procedure. A transfer procedure for substituting for the destination address or the address for user B and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
After the user A's terminal is issued by encrypting the real address or address identifier of the user A with a predetermined key, the ticket delivered from the user A to the user B is A ticket acceptance procedure to be accepted from User B's terminal together with a real address or an address identifier;
A ticket verification procedure for verifying, using the predetermined key, whether or not the ticket received by the ticket reception procedure is normally issued with the predetermined key;
User B's real address or address identifier received from User B's terminal and User A's real address or address decrypted from the ticket when the ticket verification procedure confirms that it has been issued normally The identifier is used to conceal the real address or address identifier of user A as the source only or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. A first address generation procedure for generating an address addressed to the user B while being embedded;
When a communication request having the destination addressed to the user B generated by the first address generation procedure as a destination is received from the user's terminal, the real address or the source address limited from the user B address A restoration procedure for restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, using the information restored by the restoration procedure and the source address of the communication request, the real address or address identifier of user B as a source limitation or these A second address generation procedure for generating an address addressed to the user A in which the information generated from the information and the real address or address identifier of the user A as the destination or the information generated from the information are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the second address generation procedure. A transfer procedure for substituting the address for user A and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
The user B's real address or address identifier and the address code passed from the user A to the user B after being issued as an argument with the user A's real address or address identifier and the predetermined key as an argument Alternatively, an address code reception procedure for receiving from the terminal of user B together with the address identifier;
The address code received by the address code receiving procedure is embedded as a source limited, and the real address or address identifier of the user B as the destination is addressed or the address to the user B embedded while concealing the information generated from these A first address generation procedure to generate;
When a communication request for receiving the address addressed to the user B generated by the first address generation procedure is received from the user's terminal, from the address addressed to the user B, an address code limited to the transmission source and A restoration procedure for restoring a real address or an address identifier as a destination or information generated from them;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, the real address or address identifier of the user B and a predetermined key are used as arguments using the information restored by the restoration procedure and the source address of the communication request Secondly, an address code to be issued is embedded as a limited source, and a real address or address identifier of the user A as a destination is generated or an address to the user A is embedded while concealing information generated from these. Address generation procedure;
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the second address generation procedure. A transfer procedure for substituting the address for user A and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
A temporary address issuing procedure for receiving the real address or address identifier of the user A from the terminal of the user A, and issuing a temporary address embedded while concealing the real address or address identifier of the user A as a destination;
A call request reception procedure for receiving a call request with the temporary address generated by the separate address generation procedure as a destination, from the user B terminal;
A temporary address verification procedure for verifying whether or not the temporary address included in the outgoing request received by the outgoing request acceptance procedure is normally issued by the temporary address issuing procedure;
When it is confirmed that the temporary address has been issued by the temporary address verification procedure, the real address or address identifier of user A embedded in the temporary address and the real address or address of user B included in the outgoing request The identifier is used to conceal the real address or address identifier of user A as limited to the transmission source or information generated therefrom and the real address or address identifier of user B as the destination or information generated therefrom. A first address generation procedure for generating an address addressed to the user B while being embedded;
When a communication request having the destination addressed to the user B generated by the first address generation procedure as a destination is received from the user's terminal, the real address or the source address limited from the user B address A restoration procedure for restoring an address identifier or information generated therefrom and a real address or address identifier as a destination or information generated therefrom;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, using the information restored by the restoration procedure and the source address of the communication request, the real address or address identifier of user B as a source limitation or these A second address generation procedure for generating an address addressed to the user A in which the information generated from the information and the real address or address identifier of the user A as the destination or the information generated from the information are concealed,
The destination of the communication request is replaced with the real address of the user B derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the second address generation procedure. A transfer procedure for substituting the address for user A and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute. A communication system that generates a communication address in response to a request from a user who requests communication, and controls communication using the address ,
Accepting means for accepting the real addresses or address identifiers of the users A and the information generated from them while keeping the real addresses of the users A and B secret from each other;
Using the real addresses or address identifiers of user A and user B received by the receiving means, or information generated from them, the real address or address identifier of user A as a source limitation or generated from these User B's real address or address identifier as an incoming call destination or an address generated by the user B, and the address generated by the user B, and / or the real address of the user B as a source limited Alternatively, the first address for generating an address addressed to the user A in which the address identifier or the information generated therefrom and the real address of the user A as the destination or the address identifier or the information generated from the information are concealed. Generating means;
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated by the first address generating means, the address addressed to user A or user B A restoring means for restoring, from the destination address, a real address or address identifier as a source limitation or information generated therefrom, and a real address or address identifier as a destination or information generated therefrom;
A transfer determination unit that determines whether or not a source address of the communication request satisfies information related to a source limitation restored by the restoration unit, and determines whether or not the communication request can be transferred;
If it is determined by the transfer determining means that transfer is possible, the information restored by the restoring means and the source address of the communication request are used. A second address generating means for generating an address addressed to the user B and generating an address addressed to the user A if the destination of the communication request is an address addressed to the user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration means, and the source of the communication request is generated by the user A generated by the second address generation means. A transfer means that replaces the address or the address addressed to the user B and transfers the communication request to the destination after the replacement;
A communication system comprising: A communication method for generating a communication address in response to a request from a user who requests communication and controlling communication using the address ,
Accepting the real addresses or address identifiers of the users A and the information generated from them while keeping the real addresses of the users A and B secret from each other;
Using the real addresses or address identifiers of user A and user B received in the reception step or information generated from them, the real address or address identifier of user A as a source limitation or generated from these User B's real address or address identifier as an incoming call destination or an address generated by the user B while concealing and embedding the information and / or user B's real address as a source limited Alternatively, a first address for generating an address addressed to the user A in which the address identifier or the information generated therefrom and the real address of the user A as the destination or the address identifier or the information generated from the information are concealed. Generation process;
When a communication request is received from the user's terminal with the address addressed to user A or the address addressed to user B generated in the first address generation step, the address addressed to user A or user B A restoration step of restoring a real address or address identifier as a source restriction or information generated from them and a real address or address identifier as a destination or information generated from them from a destination address;
A transfer determination step of determining whether or not the transmission source address of the communication request satisfies the information related to the transmission source limitation restored by the restoration step, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible in the transfer determination step, the information restored in the restoration step and the source address of the communication request are used. A second address generating step of generating an address addressed to user B and generating the address addressed to user A if the destination of the communication request is an address addressed to user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration step, and the communication request source is generated by the user A generated by the second address generation step. A transfer step of substituting for the destination address or user B address and transferring the communication request to the destination after the replacement;
The communication method characterized by including. A communication program for generating a communication address in response to a request from a user who requests communication, and causing a computer to execute a communication method for controlling communication using the address ,
An acceptance procedure for accepting the real addresses or address identifiers of the users A and the information generated from them while keeping the real addresses of the users A and B secret from each other;
Using the real addresses or address identifiers of user A and user B received by the reception procedure or information generated from them, the real address or address identifier of user A as a source limitation or generated from these User B's real address or address identifier as an incoming call destination or an address generated by the user B while concealing and embedding the information and / or user B's real address as a source limited Alternatively, a first address for generating an address addressed to the user A in which the address identifier or the information generated therefrom and the real address of the user A as the destination or the address identifier or the information generated from the information are concealed. Generation procedure,
When a communication request is received from the user's terminal using the user A address or the user B address generated by the first address generation procedure, the user A address or user B A restoration procedure for restoring a real address or address identifier as a source limitation or information generated from the destination address, and a real address or address identifier as a destination or information generated from the destination address;
A transfer determination procedure for determining whether or not the source address of the communication request satisfies information related to the source limitation restored by the restoration procedure, and determining whether or not the communication request can be transferred;
When it is determined that transfer is possible by the transfer determination procedure, if the destination of the communication request is an address addressed to the user A using the information restored by the restoration procedure and the source address of the communication request, A second address generation procedure for generating an address for user B, and generating an address for user A if the destination of the communication request is an address for user B;
The destination of the communication request is replaced with a real address derived from the destination information restored by the restoration procedure, and the source of the communication request is generated by the user A generated by the second address generation procedure. A transfer procedure for substituting for the destination address or the address for user B and transferring the communication request to the destination after the replacement;
A communication program for causing a computer to execute.

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