JP2009146097A - Encryption/decryption method with bonus point, device, program, and storage medium - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an encryption/decryption method in a computer in which encryption/decryption software can be used without anxiety, and which is made much easier to use according to the price curb or the increase of the number of users, a device for executing the encryption/decryption method, a program and a storage medium. <P>SOLUTION: This encryption device for encrypting original data by a computer, and for generating encrypted data is provided with: an original data reading part for reading original data; an encryption processing part for encrypting the original data read by the original data reading part; a network transmission/reception part connected through a network to a bonus point management server for managing the bonus points of each user for transmitting/receiving data; a bonus point data reading part for reading the bonus point data of a user who has performed encryption processing or sent a public key for the encryption processing; and a bonus point processing part for processing bonus point data read by the bonus point data reading part. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an encryption method and a decryption method in a computer, and an apparatus, a program, and a storage medium for executing the encryption method and the decryption method, and more particularly to a means for giving reward points at the time of encryption or decryption. .

With the rapid spread of the Internet, there are increasing opportunities to use attachments to e-mails and uploads and downloads via the web when exchanging and distributing documents in business. However, since the Internet may pass through a plurality of third-party servers or be hacked, it is very dangerous to communicate without adding security.

For this reason, a technology for preventing eavesdropping or falsification of data by a protocol such as SSL (Secure Socket Layer) and many encryption or decryption software are commercially available.

Among these, encryption / decryption software is known that performs encryption / decryption using a password and that performs encryption / decryption using a public key method. Both are easy to use and are essential when exchanging files over the Internet.

However, such software is not compatible unless software that uses the same encryption / decryption method is prepared on the transmission side and the reception side. There is a problem that the other party has to confirm the possession of compatible software or ask to install it.
Furthermore, technological progress of encryption / decryption is remarkable, and in order to maintain a high level of security,
Since it is desirable to use the latest software, there is a problem that it is necessary to purchase frequently or to install a plurality of software depending on the other party.

As a user, it is not preferable from the viewpoint of productivity to spend a large amount of money for the purpose of security protection. On the other hand, security software manufacturers are forced to set appropriate prices for advanced technology development, so profits in both supply and demand are not adjusted.

As a result, the latest security software may not be widely spread, leading to the consequences of information leaks and tampering.

On the other hand, it is conventionally known to place advertisements in software in order to distribute the software for free or at a low price.
For example, in Patent Document 1, an advertisement is placed on at least a part of an internal program of a software product under the sponsorship of an advertisement sponsor, and the program user is allowed to download the program free of charge or at a low cost. An advertising method using a software product is disclosed in which the sponsor sponsor's sponsored advertisement is displayed when using the advertisement.

As an invention whose software is more limited, Patent Document 2 discloses that computer virus detection pattern data is provided instead of displaying an advertisement, and Patent Document 3 discloses a multimedia album program with an advertisement display function. It is disclosed that a user can create a photo and use it to browse photos taken by customers.

Japanese Patent Laid-Open No. 2001-142985 JP 2002-91786 A Japanese Patent Laid-Open No. 2003-295803

As in the prior art, it is known to add an advertisement display function to software to obtain advertisement income to suppress the price or increase the number of users.
However, in the case of encryption / decryption software, as described above, software that has a correspondence relationship between the transmission side and the reception side must be used, so that it is used only on the user side (reception side) like general software. It differs greatly from distributing software.

For example, when an advertisement is added to the decryption software and distributed, the advertisement of the decryption software will be displayed regardless of the transmission side, and the characteristics of the software in which the transmission side and the reception side have a corresponding relationship are displayed. I can't make use of it.

In addition, it is preferable that the transmission side can be encrypted at a low cost, and it is desirable that the receiving side does not want to spend more cost. Therefore, in the encryption / decryption software, it is desirable to have both sponsors together. In the prior art, since each has a separate relationship, for example, competitors may each become a sponsor on the encryption / decryption side, and in this case, the other party's advertisement will be used. Therefore, it is also a cause for hesitation to advertise on such software.

By displaying general messages as well as advertisements at the time of decryption, it is possible to transmit simple intentions and to play a role of publicity in accordance with the transmission of data. A single message can only be transmitted, and desired information cannot be provided from the transmission side.

Also, when performing encryption / decryption processing, a long processing time may be required when a complicated encryption method is used or when a large-capacity file is encrypted.
Conventional encryption / decryption software sometimes displays the progress of a process by displaying the progress of processing as a bar or displaying the amount of processing as a percentage, etc. It was a cause of discomfort.

On the other hand, the present inventor in Patent Document 4 can introduce decryption software corresponding to the encryption method without resistance on the receiving side by utilizing the correspondence of encryption / decryption, A technology has been provided that can present messages and the like, and that allows the user to comfortably wait even during processing such as decryption.

Japanese Patent Application No. 2006-302426

It is also conceivable to add time authentication to reduce the price of encryption / decryption software and increase the number of users.
For example, in Patent Document 5, a user terminal of an electronic file creator is made to access a time management server via the Internet, and a message digest of an electronic file is transmitted from the user terminal to the server during the bidirectional communication. Then, a technology is disclosed in which the server generates a digital signature based on its own private key for the time of its own clock and the received message digest, and transmits the obtained digital signature to the user terminal. ing.

  Similarly, Patent Documents 6 to 8 disclose techniques related to time authentication.

JP 2004-86494 A JP 2004-135024 A JP 2006-333435 A JP 2006-295720 A

As a general means for securing customers, a system that gives reward points as it is used is known, such as airline mileage service and store point service.
As prior art relating to such a reward point system, there are Patent Documents 9 to 12.

JP 2002-15198 A JP 2002-329115 A JP 2003-85352 A JP 2004-94334 A

However, there has been no disclosure in the prior art regarding linking the reward point system with encryption / decryption software.

Therefore, the present invention implements an encryption method and a decryption method in a computer that can use the encryption / decryption software with peace of mind and can be easily used due to price control and an increase in the number of users, and the encryption method and the decryption method. It is an object to provide an apparatus, a program, and a storage medium.

In order to solve the above problems, the encryption apparatus of the present invention comprises the following arrangement.
That is, in an encryption device that encrypts original data by a computer and generates encrypted data, an original data reading unit that reads the original data, and an encryption process that encrypts the original data read by the original data reading unit The rewards of the users who are connected to the reward points management server that manages the reward points of each user via the network and that send / receive data and the users who sent the public key for encryption processing or encryption processing A reward point data reading unit for reading point data and a reward point processing unit for processing the reward point data read by the reward point data reading unit are provided.

Here, the network transmission / reception unit is connected to a time authentication management server that manages time authentication, a time data reading unit that reads time data, and a time that is attached to the encrypted data after authentication of the time when the encryption process is performed A time data processing unit that approves data may be provided to add a time authentication function.

Also, a presentation data reading unit that reads presentation information data that is presented when the original data is encrypted or decrypted by the encrypted data, and a presentation data processing unit that processes the presentation information read by the presentation data reading unit And an information presentation function may be added.

The decoding device of the present invention has the following configuration.
That is, in a decryption device that decrypts encrypted data in a computer and generates restored data, an encrypted data reading unit that reads the encrypted data, and a decryption process that reads the encrypted data read by the encrypted data reading unit A network processor that is connected via a network to a reward point management server that manages reward points for each user and a reward point management server that manages each user's reward points, and a reward that reads reward point data for users who have been decrypted A point data reading unit and a reward point processing unit for processing reward point data read by the reward point data reading unit are provided.

Here, the network transmission / reception unit is connected to a time authentication management server that manages time authentication, and a time data reading unit that reads out time data, and time data that accompanies the restoration data after receiving the authentication of the time when the decryption process was performed. May be provided with a time data processing unit that performs an approval process, and a time authentication function may be added.

In addition, a presentation data reading unit for reading the presentation information data to be presented when decrypting the encrypted data and a presentation data processing unit for presenting the presentation information read by the presentation data reading unit are provided to add an information presentation function. May be.

The encryption method of the present invention has the following configuration.
That is, in an encryption method for encrypting original data by a computer and generating encrypted data, an original data reading step for reading the original data by the original data reading unit and the original data by the encryption processing unit After the encryption processing step to be processed and the encryption processing, the network transmission / reception unit transmits / receives data to / from the reward point management server that manages the reward points of each user via the network, and the reward point data reading unit performs encryption processing. Alternatively, reward point data reading step for reading reward point data of the user who sent the public key for encryption processing, and reward of the user who sent the public key for encryption processing by the reward point processing unit Reward point processing for processing point data Characterized by a step.

Similarly, in an encryption method in which original data is encrypted by a computer and encrypted data is generated, an original data reading step for reading the original data by the original data reading unit and the original data are encrypted by the encryption processing unit. Encryption processing step for performing encryption processing, and storage device for storing reward point data of a user who performs encryption processing or public key transmission for encryption processing by the reward point data reading unit after the encryption processing in advance The reward point data reading step to be read from the network and the network transmission / reception unit transmit / receive data to / from the reward point management server that manages each user's reward points, and the reward point processing unit performs encryption processing or encryption processing. Reward point date of the user who sent the public key It may be characterized by having a reward point processing step of processing.

Similarly, in an encryption method for encrypting original data by a computer and generating encrypted data, an original data reading step for reading the original data by the original data reading unit and a reward point for each user by the network transmitting / receiving unit A reward point data reading step for reading / receiving reward point data of a user who performs data transmission / reception via a network with a reward point management server for managing the data, and for performing an encryption process or sending a public key for the encryption process by a reward point data reading unit; An encryption processing step for encrypting the original data by the encryption processing unit, and a reward for the user who performed the encryption process or sent the public key for the encryption process by the reward point processing unit after the encryption processing Reward point processing system that processes point data Tsu may be characterized by having a flop.

Similarly, in an encryption method for encrypting original data by a computer and generating encrypted data, an original data reading step for reading the original data by the original data reading unit and an encryption process by the reward point data reading unit Alternatively, reward point data read step for reading reward point data of a user who performs public key transmission for encryption processing from a storage device that has been stored in advance, and encryption processing for encrypting the original data by the encryption processing unit After the step and encryption processing, the network transmission / reception unit transmits / receives data via the network to the reward point management server that manages the reward points of each user, and the reward point processing unit performs encryption processing or encryption processing. Reward point date of the user who sent the public key It may be characterized by having a reward point processing step of processing.

Here, the network transmitting / receiving unit transmits / receives data to / from the time authentication management server that manages time authentication, and the time data reading unit reads time data by the time data reading unit. A time data processing step for approving the time data by the processing unit; and a data connection processing step for generating the time authentication-added encrypted data by connecting the encrypted data and the time data by the data connection processing unit. A time authentication function may be added.

Similarly, a data transmission / reception unit transmits / receives data via a network to / from a time authentication management server that manages time authentication, and a time data read unit reads time data, and a data connection processing unit performs original data And time data are combined to generate time authentication additional source data, and after the encryption process, the time data processing unit approves the time data to generate time authentication additional encrypted data. A time data processing step may be provided to add a time authentication function.

In addition, the presentation data reading unit reads the presentation information data to be presented when the original data is encrypted or the encrypted data is decrypted by the presentation data reading unit, and after the encryption process, the presentation data processing unit A presentation data processing step for presenting presentation information, and a data connection processing step for generating presentation information-added encrypted data by concatenating the encrypted data and the presentation information data by a data connection processing unit. A presentation function may be added.

Similarly, a presentation data reading step of reading presentation information data to be presented when the original data is encrypted or when the encrypted data is decrypted by the presentation data reading unit;
After the data connection processing unit generates the presentation information addition source data by connecting the original data and the presentation information data by the data connection processing unit, and after the encryption process, the presentation data processing unit presents the presentation information. A presentation data processing step for generating presentation information-added encrypted data may be provided to add an information presentation function.

Here, the presentation information includes text data, image data, audio data,
Either video data consisting of audio and moving images is useful.

Similarly, as the presentation information data, any file name or path name or network address of text data related to advertisement, image data, audio data, video data composed of audio and moving images is useful.

In addition, after the reward point process, a reward point update notification step for notifying the user who has performed the encryption process that the reward point has been updated may be provided to enhance the motivation to use the encryption software.

In addition, after the encrypted data, the time authentication additional encrypted data, the presentation information additional encrypted data or the time authentication and the presentation information additional encrypted data are transmitted by the network transmission / reception unit, the encrypted data is transmitted. An encrypted data transmission notification step for notifying the user who has performed the encryption process together with the transmission time may be provided to enhance the sense of security of using the encryption / decryption software.

The decoding method of the present invention has the following configuration.
That is, in a decryption method for decrypting encrypted data by a computer and generating restored data, an encrypted data reading step for reading the encrypted data by the encrypted data reading unit, and an encryption by the decryption processing unit The decryption processing step for decrypting the data, and after the decryption processing, the network transmission / reception unit transmits / receives data to / from the reward point management server for managing the reward points of each user via the network, and the reward point data reading unit A reward point data reading step for reading the reward point data of the user who has been decrypted, and a reward point processing step for processing the reward point data of the user who has been decrypted by the reward point processing unit. Features.

Similarly, in a decryption method for decrypting encrypted data by a computer and generating restored data, an encrypted data reading step for reading the encrypted data by the encrypted data reading unit and an encryption by the decryption processing unit Decryption processing step for decrypting decrypted data, and reward point data for reading out the reward point data of the user performing decryption processing from the storage device stored in advance by the reward point data reading unit after decryption processing The data is sent and received via the network to the reward point management server that manages the reward points of each user by the reading step and the network transmission / reception unit, and the reward point data of the user that has been decrypted is processed by the reward point processing unit With reward point processing steps Door may be characterized.

Similarly, in a decryption method for decrypting encrypted data by a computer and generating restored data, an encrypted data reading step for reading the encrypted data by the encrypted data reading unit and a network transmitting / receiving unit for each user A reward point data reading step for reading the reward point data of a user who performs decryption processing by a reward point data reading unit, and a decryption processing unit. A decryption processing step for decrypting the encrypted data; and a reward point processing step for processing the reward point data of the user who performed the decryption processing by the reward point processing unit after the decryption processing. It may be a feature.

Similarly, in a decryption method for decrypting encrypted data by a computer and generating restored data, an encrypted data reading step for reading the encrypted data by the encrypted data reading unit, and a reward point data reading unit, Reward point data reading step for reading the reward point data of the user performing the decryption process from a storage device that has been stored in advance, a decryption process step for decrypting the encrypted data by the decryption processing unit, and a decryption step After the processing, the network transmission / reception unit transmits / receives data to / from the reward point management server that manages the reward points of each user via the network, and the reward point processing unit processes the user reward point data that has been decrypted. With reward point processing steps Door may be characterized.

Here, the network transmitting / receiving unit transmits / receives data to / from the time authentication management server that manages time authentication, the time data reading unit reads the time data, and the time data is read after the decoding process. A time data processing step for approving the time data by the processing unit, and a data connection processing step for generating the time authentication-added restoration data by concatenating the restoration data and the time data by the data concatenation processing unit. An authentication function may be added.

Similarly, the network transmission / reception unit transmits / receives data to / from the time authentication management server that manages time authentication, the time data reading unit reads the time data, and the data connection processing unit encrypts the data. Data concatenation processing step for concatenating data and time data to generate encrypted data with time authentication, and after decryption processing, the time data processing unit approves time data to generate time authentication-added restoration data A time data processing step may be provided to add a time authentication function.

Also, a presentation data reading step for reading presentation information data to be presented at the time of decryption of encrypted data by the presentation data reading unit, and presentation data for presenting presentation information by the presentation data processing unit before or after the decryption process An information presentation function may be added by providing a presentation data processing step having a processing step.

Similarly, a data division step for dividing the presentation information-added encrypted data into presentation information data and encrypted data by the data division processing unit, and presentation information data to be presented at the time of decryption of the encrypted data by the presentation data reading unit The presentation data reading step for reading the information and the presentation data processing step for presenting the presentation information by the presentation data processing unit before or after the decryption processing may be provided to add an information presentation function.

Here, the presentation information includes text data, image data, audio data,
Either video data consisting of audio and moving images is useful.

Similarly, as the presentation information data, any file name or path name or network address of text data related to advertisement, image data, audio data, video data composed of audio and moving images is useful.

Further, after the reward point process, a reward point update notification step for notifying the user who has performed the decryption process that the reward point has been updated may be provided to enhance the motivation to use the decryption software.

In addition, after the network transmission / reception unit receives the encrypted data, the time-authentication-added encrypted data, the presentation information-added encrypted data, or the time-authentication and the presentation information-added encrypted data, the encrypted data is received. An encrypted data reception notification step for notifying the user who has performed the encryption process together with the reception time may be provided to enhance the sense of security of using the encryption software.

In addition, after the decryption process, a restoration notification step for notifying the user who performed the encryption process that the encrypted data has been restored may be provided to enhance the sense of security of using the encryption / decryption software. .

The program of the present invention has the following configuration.
That is, the computer functions as the above-described encryption device, or the encryption program that executes the above-described encryption method and the computer functions as the above-described decryption device, or the above-described decryption method is executed. One or both of the decryption program and the decryption program.

The computer storage medium of the present invention has the following configuration.
That is, it is characterized in that the above-mentioned program is stored and made into an execution format.

In addition, the encrypted data, the time authentication-added encrypted data, the presentation information-added encrypted data, or the time-authentication and presentation information-added encrypted data generated by the above-described encryption device or encryption method are stored in a data format. It is characterized by that.

The present invention has the following effects by providing the above configuration.
That is, according to the encryption device according to any one of claims 1 to 3 or the encryption method according to any one of claims 7 to 17, the reward point data of the user who has performed the encryption process is updated. This will motivate the use of encryption software and contribute to the spread of encryption / decryption software. Along with the spread, it will contribute to lower sales prices and increase capital for higher performance.
According to the encryption device or encryption method to which the information presentation function is added, the selling price can be easily lowered due to the advertising revenue.
According to the encryption device or the encryption method to which the time authentication function is added, the use of the encryption software is motivated by its convenience and contributes to the popularization of the encryption / decryption software.

Similarly, according to the decoding device according to any one of claims 4 to 6 or the decoding method according to any one of claims 18 to 31, the reward point data of the user who has performed the decoding process is updated. The acquisition of points will motivate the use of decryption software and contribute to the spread of encryption / decryption software. Along with the spread, it will contribute to lower sales prices and increase capital for higher performance.
According to the decryption device or decryption method to which the information presentation function is added, the selling price can be easily reduced due to the advertising revenue.
According to the decryption device or decryption method to which the time authentication function is added, the use of the encryption software is motivated by its convenience and contributes to the popularization of the encryption / decryption software.

According to the program according to claim 32 or the computer storage medium according to claim 33, the encryption / decryption software can be recorded on a CD or the like and provided as the medium.

According to the computer storage medium of the thirty-third aspect, encrypted data to which presentation information such as an advertisement is added can be recorded on a CD or the like and provided as the medium.

Hereinafter, embodiments of the present invention will be described based on examples shown in the drawings. The embodiment is not limited to the following examples, and can be appropriately changed in design using a conventionally known technique without departing from the gist of the present invention.
FIG. 1 is an explanatory diagram showing a mode in which an encryption device (1) and a decryption device (2) according to the present invention are used.

Both the encryption device (1) and the decryption device (2) can be configured by known personal computers, and the reward point management server (4) and the time authentication management server (5) via a communication line such as the Internet (3). It is connected to the.
The reward point management server (4) is operated by a company that provides reward points.
A function for managing reward points of users who use encryption software or decryption software is provided. The time authentication management server (5) is operated by a credit institution or the like to which authority for time authentication is given, and has a function of performing time authentication of data generated by encryption software or decryption software.
Further, the encryption device (1) and the decryption device (2) may be connected to a server operated by a company or the like that manages presentation information such as advertisements presented when using the encryption software or the decryption software. .

In the encryption device (1), the original data (11
), The reward point management server (4) is managed and the reward point data (12) of the user is updated.

At the time of this encryption processing, it is managed by the time authentication management server (5), and the time data (13) obtained therefrom is concatenated with the encrypted data (14) and is output as encrypted data with time authentication (15). May be.

Further, at the time of this encryption process, the presentation information data (16) obtained from the external server or the internal magnetic storage device is connected to the encrypted data (14) to provide the presentation data-added encrypted data (1).
7) may be output. Further, both the time data (13) and the presentation information data (16) may be connected to the encrypted data (14) and output as the presentation information and the time authentication-added encrypted data.
At this time, the presentation information data (16) obtained from the external server or the internal magnetic storage device may be presented on a monitor, a speaker or the like provided in the encryption device (1).

Encrypted data (14) generated by the encryption device (1) and encrypted data with time authentication (1)
5), presentation information additional encrypted data (17), presentation information and time authentication additional encrypted data,
It is transmitted to the receiving side user via the Internet (3), or is temporarily stored in a magnetic storage medium (6) such as a CD or DVD, a non-volatile memory connected by USB or the like, and the decoding device (2 ).
In the case of passing through the Internet (3), as is well known, a configuration in which an e-mail is attached and transmitted, a configuration in which peer-to-peer transmission is performed using a predetermined protocol, a decryption device once stored on a server Various conventionally known data communication methods can be used, such as a configuration in which downloading is performed using FTP, HTTP, or the like by user operation (2).

The decryption device (2) receives the reward point data (52) of the user under the management of the reward point management server (4) at the time of decryption processing for converting the encrypted data (14) into the restored data (51). Update.

At the time of this decryption processing, the time authentication management server (5) receives the management, and the time data (53) obtained therefrom is connected to the restoration data (51) and output as the time authentication addition restoration data (54). Good.

Further, at the time of this decryption processing, the presentation information data (55) obtained from the external server or the internal magnetic storage device may be connected to the restoration data (51) and output as the presentation information addition restoration data (56). Good.
Conversely, if the input data is the presentation information-added encrypted data (17), the data is divided,
Restoration data (51) and presentation information data (55) may be obtained.
In any case, the presentation information data (16) obtained from an external server, an internal magnetic storage device, or data division may be presented on a monitor or the like provided in the decoding device (2).

The presentation information presented to the user in the present invention is an advertisement, a message, and the like. The encryption device (1) or the decryption is performed using video data including text data, image data, audio data, audio, and moving images indicating the meaning content. What can be displayed or reproduced by the digitizing device (2) is preferable. For example, it may be data to be executed and processed on other application software such as a program described in JAVA (registered trademark) language and executable on a web browser.

The presentation information data (16) (55) is not limited to the presentation information itself, but may be data indicating the location of the presentation information, for example, a file name or a path name on an external storage device.
Further, the presentation information is stored in advance on an external server on the network, and the network address (including the path and file name) of the server is presented in the presentation information data (16) (55
). As well known, the Internet URL is the network address.
The display by (Uniform Resource Locator) is typical.

In the embodiment of the present invention, the restored data (51) may be configured to be completely the same data as the original data (11), or may be different data as long as the receiving user can recognize the original data (11). Also good. Which one depends on the encryption / decryption method, and in the present invention, either method can be applied.

As the original data (11), a document file, an image file, a moving image file, an audio file, a video file (a file including audio and moving images), a program execution file, or any other file format used on a personal computer is used. be able to. It may be already compressed or encrypted.

An encryption device (1) and a decryption device (2) for realizing such an overall configuration and an implementation method thereof will be described below with reference to examples.

FIG. 2 is a block diagram of an encryption apparatus (1) implemented using a computer according to the present invention, and FIG. 3 is a flowchart of the encryption process.
The present invention is easy to implement with a known personal computer, and as is well known, a CPU (31) that performs arithmetic processing, a memory (32) such as a ROM / RAM, and a storage device (33) such as a hard disk. ), Monitor (34) for screen display, keyboard / mouse (35) for transmitting user input to CPU, media writing drive (36) such as CD and DVD
And a network adapter (37) for connecting to a network such as the Internet.

The CPU (31) includes an original data reading unit (38), an encryption processing unit (39), a data writing unit (40), a reward point reading unit (41), a reward point processing unit (42), and a network transmitting / receiving unit. (43) is provided at least.

First, the original data reading unit (38) has a hard disk (33) and a network adapter (
37), an original data reading process (S101) for reading the original data (11) to be encrypted and transmitted is executed. Then, the encryption processing unit (39) encrypts the original data (11) (S102).

A publicly known method can be freely used for the encryption process, and for example, a password encryption method or a public key encryption method can be used. In the former, the keyboard (3
Encrypt with the password entered by the user from 5).
For the latter, for example, an encryption transmission system as shown in Patent Document 13 by the present inventor can be used. Further, as the encryption / decryption method, the method of Patent Document 14 by the present inventor can also be used.

JP 2006-67412 A Japanese Patent No. 3735670

As an example, the present inventor has developed a data encryption software VS adopting a public key cryptosystem.
C-P2P is released (http://www.chaosware.com/vsc-p2p/). Also, another encryption software JanusDG (http://www7a.biglobe.ne/jp/~kzworks/) is a UNI engine for encryption.
X (registered trademark) / Linux is based on the classic GnuPG (http://www.gnupg.org/),
Enough encryption strength is secured. It adopts a GUI and can be operated mainly by the mouse, and can encrypt and decrypt files by dragging and dropping. GnuPG because the data is compatible
Can be interoperable with GnuPG, and batch data is encrypted with GnuPG.
Decoding with usDG can be performed. And since it is a public key cryptosystem, there is an advantage that a password is not secretly exchanged every time an operation is performed, and that it does not require much time for password management.

In the case of such a public key method, it is assumed that the public key (18) of the receiving user is acquired in advance via a network or the like, and is stored in the hard disk (33) for each partner. The encryption processing unit (39) reads out the reception side public key (18) and performs encryption processing (
S102) is performed.

The encrypted data (14) subjected to the encryption process (S102) is the Internet (3) or CD
It is sent to the decoding device (2) via a medium such as (6).
For example, the data writing unit (40) and the CD writing drive (36) write data to CD media (S103), or the network transmitting / receiving unit (43) and the network adapter (37) transmit the data.

Here, after the encryption process (S102), the network transmission / reception unit (43) transmits / receives data to / from the reward point management server (4) that manages the reward points of each user of the encryption / decryption software via the network. The reward point data reading unit (41) performs the reward point data reading process (S104) for reading the reward point data (12) of the user who has performed the encryption process or sending the public key for the encryption process.

Next, reward point processing (42) for processing reward point data (12) of the user who has performed encryption processing or public key transmission for encryption processing by the reward point processing unit (42).
S105) is performed.
In this reward point process (S105), the reward point data (12) received from the management server (4) in the reward point data read process (S104) is already stored in the management server (4).
If the data has been updated in (), the reward point data (12) is not substantially modified, and if necessary, the next data writing process (S106) or the hard disk (33).
) Adjust the format etc. for recording.
If the reward point data (12) received from the management server (4) in the reward point data reading process (S104) is data that has not yet been updated by the management server (4), the reward point processing unit (42) The reward point data (12) may be updated in the reward point process (S105). In this case, the network transmission / reception unit (43)
Reward point data (12 ') through communication with the reward point management server (4)
) Update authentication may be adopted. The specific management process for reward points is as follows:
The said prior art and a well-known technique can be used suitably.
The updated reward point data (12 ′) is subjected to a writing process (S106) output to a monitor (34) or the like, and is used for recognition of the user who has performed the encryption process.

In the reward point data reading process (S104), as described above, the reward point data (12) of the user who has performed the encryption process from the reward point management server (4) after the encryption process (S102). Not only the reading method but also the following method may be used.
In other words, the reward point data (12) of a candidate for a user who performs encryption processing or public key transmission for encryption processing is stored in advance in a storage device such as a memory (32) or a hard disk (33). After the encryption process (S102), the encryption process (S
102) and the reward point data of the user (12
) May be read out.

FIG. 4 is a flowchart of encryption processing according to another embodiment.
The difference from the first embodiment shown in FIG. 3 is the timing of performing reward point data read processing (S104).
In the present embodiment, before the encryption process (S102), the network transmission / reception unit (43) transmits / receives data to / from the reward point management server (4) via the network, and the reward point data read unit (41) starts the transmission / reception. Reward point data reading processing (S104) for reading reward point data (12) of the user who performs encryption processing is performed.
The reward point process (S105) is performed after the encryption process (S102) as in the first embodiment.

In addition, reward point data (12) of a candidate for a user who performs encryption processing in advance
Are stored in a storage device such as the memory (32) or the hard disk (33), and immediately before performing the encryption process (S102), the user who actually performs the encryption process (S102) is specified, and The user reward point data (12) may be read out.

In addition, such reward point data read processing (S104) and encryption processing (S102)
) May be executed substantially simultaneously by parallel processing or the like in the CPU (31).
The relationship between other processes, for example, the original data read process (S101) and the reward point data read process (S104) is the same.

In addition, before the original data reading process (S101), the reward point data reading process (S
104) may be performed. Such a context can be appropriately changed in design.

FIG. 5 is a configuration diagram of an encryption apparatus (1) according to another embodiment, and FIG. 6 is a flowchart of the encryption process.
The difference from the first embodiment shown in FIGS. 2 and 3 is that a time authentication process is added to the encrypted data (14).
That is, immediately after the encryption process (S102), the network transmission / reception unit (43)
Data is transmitted / received to / from the time authentication management server (5) that manages time authentication, and the time data reading unit (44) performs time data reading processing (S107) for reading the time data (13).
Next, time data (1) temporarily stored by the time data processing unit (45) indicating the current time.
The time data processing (S108) for performing the approval processing 3) is performed. In addition, the concrete management process of time authentication can use the said prior art and a well-known technique suitably.
Then, the data concatenation processing unit (46) concatenates the time-authenticated time data (13) and the encrypted data (14) to generate the time-authentication-added encrypted data (15) (S109). )I do.

The time data processing (S108) and the encryption processing (S102) are performed by the CPU.
You may perform substantially simultaneously by the parallel processing etc. in (31).

FIG. 7 is a flowchart of the encryption process of another embodiment, and the difference from the embodiment 3 shown in FIG. 6 is the timing for performing time authentication.
That is, immediately before the encryption process (S102), the network transmission / reception unit (43)
Data is transmitted / received to / from the time authentication management server (5) via the network, the time data reading unit (44) performs time data reading processing (S107), and the data connection processing unit (46) performs time data (13). ) And the original data (11) are connected (S109).
The time data process (S108) is performed after the encryption process (S102) in the same manner as in the third embodiment, and a confirmed time authentication is obtained.

The time data processing (S108) may also be performed immediately before the encryption processing (S102), and the encryption processing (S102) may be performed after obtaining encrypted data with time authentication added.

Such a difference in timing of time authentication is due to the time required for the encryption process (S102).
The start time of the encryption process (S102) may be the authentication time, or the encryption process (S102).
The end time may be the authentication time, and the time in between may be the authentication time. The present invention can cope with any of these times.

FIG. 8 is a flowchart of the encryption process of another embodiment, and the difference from the embodiment 3 shown in FIG. 6 is the timing at which the reward point data reading process (S104) is performed.
In other words, it corresponds to a configuration in which time authentication similar to that in the third embodiment shown in FIG. 6 is added to the second embodiment shown in FIG.

FIG. 9 is a flowchart of the encryption process of another embodiment, and the difference from the embodiment 4 shown in FIG. 7 is the timing at which reward point data read processing (S104) is performed.
In other words, it corresponds to a configuration in which time authentication similar to that of the fourth embodiment shown in FIG. 7 is added to the second embodiment shown in FIG.
In addition, as shown with the virtual line, the order of the time data reading process (S107) and the reward point data reading process (S104) may be changed, and such a context can be changed in design as appropriate.

FIG. 10 is a configuration diagram of an encryption device (1) according to another embodiment, and FIG. 11 is a flowchart of the encryption processing.
The difference from the first embodiment shown in FIGS. 2 and 3 is that a process of presenting information is added during the encryption process (S102).
That is, the process of the presentation information data (16) is added in the same manner as when the time authentication process is added in the third embodiment shown in FIG.
The presentation data reading unit (47) transmits / receives data via a network to / from a server that provides and manages presentation information such as advertisements, or accesses a storage device such as the hard disk (33) to store the original data (11). A presentation data read process (S110) for reading presentation information data (16) to be presented at the time of encryption is performed.
After the encryption process (S102), the presentation data processing unit (48) performs presentation data processing (S111) for presenting presentation information.

As described above, the presentation data processing (S111) for displaying the presentation information on the monitor (34) or the like may be performed subsequent to the encryption processing (S102) or substantially simultaneously with the encryption processing (S102). Alternatively, it may be before the encryption process (S102).
In addition, in the encryption process (S102), the presentation information is not displayed and the encryption process (S1) is not displayed.
It may be displayed only when the encrypted data (14) is decrypted by (02).

The presentation information data (16) subjected to the presentation data reading process (S110) by the presentation data reading unit (47) is converted into the encrypted data (14) by the data connection processing unit (46).
The data link process (S109) to link with the presentation information added encrypted data (17)
Is output as
The presentation information-added encrypted data (17) may include the presentation information data (16) presented at the time of the decryption process, or may not include the presentation information data (16). Only the record information that the information has already been presented may be included in the conversion process (S102).
The data connection process (S109) includes encrypted data (14) and presentation information data (16).
May be simply connected before and after to form one piece of data, or a known connecting process for converting a part or all of a plurality of pieces of data into one piece of data may be used as appropriate.

The encryption device (1) may be provided with a presentation setting information determination unit that determines the presentation setting information related to the presentation condition and presentation mode of the presentation information data (16) in the decryption device (2).
Here, the presentation setting information related to the presentation condition is information indicating whether or not to present in the decoding device (2), in particular information defining conditions for presentation. For example, the presentation information-added encrypted data (
17) In the other party who sent 17), the information is presented when the number of times of decryption is 3 or less, but the presentation is stopped when the number of decryption is 4 or more.
In this case, for example, information such as “display = 3times” is included in the presentation information data (16) as presentation setting information, and this number of times is subtracted in the decoding device (2), thereby specifying the number of times. The above should not be presented.

The presentation setting information related to the presentation mode is information that defines the presentation mode including the size of the display frame to be presented, the color, the volume, the display reproduction time, and the like. For example, it is set according to the number of times of decoding, and for example, the display time is defined as 15 seconds when the number of times of decoding is 3 times, and 5 seconds when the number of times is 4 times or more. Or, depending on the capacity of the original data (11), it may be defined as 10 seconds for 100 kilobytes or less, and 20 seconds for larger data.

By defining the presentation setting information in this way, it is possible to reduce discomfort when the receiving user repeatedly browses at the time of decoding. Changes in size, color, volume, and other aspects contribute to increasing user interest.
Furthermore, by changing the presentation time according to the capacity of the original data (11), it is possible to set an appropriate presentation time according to the time required for the decoding process.

When accessing the advertiser's server via the Internet (3) and obtaining presentation information such as a logo image, for example, http://ad.nict.go.jp/logo.jpg? ID = 1234
By first, the server “ad.nict.go.jp” is accessed, the image data “logo.jpg” included therein is read, and the ID 1234 can be transmitted to the advertiser's server.
According to this, if the advertiser defines it for each encryption processing software to which the ID is distributed, the information is transmitted each time the encryption processing software is started, and it is easy to see how much advertising effect there is. I can grasp.

In particular, by including a process that periodically acquires the same data while the encryption processing software is running, the actual display time can be acquired at the advertiser's server, and the advertising effectiveness of the software can be reduced over time. Can be calculated automatically.
Furthermore, the manufacturer of the encryption software manages the information frame regarding the sponsor, stores the display image requested by the advertiser in the server device of the manufacturer, and the encryption process activated by the user. You may make it display it on the sponsor frame of software. Then, the total display time of the distributed user may be calculated by the server device of the manufacturer, and the advertiser may be charged for the advertising fee according to the time.

FIG. 12 is a flowchart of the encryption process of another embodiment, and the difference from the embodiment 7 shown in FIG. 11 is the timing of information presentation.
That is, the process of the presentation information data (16) is added in the same manner as when the time authentication process is added in the fourth embodiment shown in FIG.
The presentation data reading unit (47) reads the presentation information data (16) to be presented when the original data (11) is encrypted or when the encrypted data (14) is decrypted (S110). I do. Next, the data connection processing unit (46) performs data connection processing (S109) for connecting the original data (11) and the presentation information data (16) to generate presentation information addition source data.
After the encryption process (S102), the presentation data processing unit (48) performs presentation data processing (S111) for presenting presentation information.

The difference between the eighth embodiment and the seventh embodiment described above is that the original data (11) is first encrypted (S102) in the seventh embodiment, whereas the original data (11) and the presentation information data in the eighth embodiment. (1
6) is connected (S109) and then encrypted (S102).
In the case of the seventh embodiment, since the presentation information data (16) is not encrypted (S102), the encryption processing time can be shortened. When the presentation information data (16) includes information on the receiving user, etc., both the original data (11) and the presentation information data (16) are encrypted as in the eighth embodiment from the viewpoint of security ( S102) is preferably performed.

FIG. 13 is a flowchart of the encryption process according to another embodiment, and the difference from the embodiment 7 shown in FIG. 11 is the timing at which the reward point data read process (S104) is performed.
In other words, it corresponds to a configuration in which information presentation similar to that in the seventh embodiment shown in FIG. 11 is added to the second embodiment shown in FIG.

FIG. 14 is a flowchart of the encryption process according to another embodiment. The difference from the embodiment 8 shown in FIG. 12 is the timing at which the reward point data read process (S104) is performed.
In other words, it corresponds to a configuration in which time authentication similar to that in the eighth embodiment shown in FIG. 12 is added to the second embodiment shown in FIG.

FIG. 15 is a configuration diagram of an encryption apparatus (1) according to another embodiment, and FIG. 16 is a flowchart of an example of the encryption processing.
The difference from the seventh embodiment shown in FIGS. 10 and 11 is that the time authentication of the fourth embodiment shown in FIGS. 5 and 7 is added.
In other words, it corresponds to a configuration in which both time authentication and information presentation are added to the first embodiment shown in FIGS.
As described above, the time data processing (S108) and the presentation data processing (S111) are appropriately added, and both the time data (13) and the presentation information data (16) are connected to the encrypted data (14) to be presented. Information and time authentication additional encrypted data (19) may be output.

In the case of the above processing, after reward point processing (S105), reward point (12)
May be notified by e-mail or the like to the user who has performed the encryption process (S102) to increase the motivation for using the encryption software.

Also, the network transmission / reception unit (43) generates encrypted data (14), time authentication-added encrypted data (15), presentation information-added encrypted data (17), time authentication and presentation information-added encrypted data (19). When it is sent, it is possible to notify the user who has performed the encryption process (S103) together with the transmission time that the encrypted data has been sent, and to improve the reliability and motivation to use the encryption software. Good.

Next, the decoding device (1) and the decoding processing method according to the present invention will be described. Except for the differences associated with encryption and decryption, it is basically the same as the encryption device (1) and the encryption processing method described in the first to eleventh embodiments.
FIG. 17 is a block diagram of a decoding device (2) implemented using a computer according to the present invention.
FIG. 18 is a flowchart of the decoding process.
Similar to the encryption device (1) shown in FIG. 2, the decryption device (2) has a CP that performs arithmetic processing.
U (81), cooperating memory (82) such as ROM / RAM, storage device (83) such as a hard disk, monitor (84) for screen display, keyboard / mouse (85) for transmitting user input to CPU , Media writing drive (86) such as CD and DVD, network adapter (87) for connecting to the network such as the Internet, etc.
The CPU (81) includes an encrypted data reading unit (88), a decryption processing unit (89), a data writing unit (90), a reward point reading unit (91), a reward point processing unit (92), network transmission / reception. A part (93) is provided at least.

The encrypted data reading unit (88) performs encrypted data reading processing (S501) for reading the encrypted data (14), and the decryption processing unit (89) performs encrypted data (1).
A decrypting process (S502) for decrypting 4) is performed.
The method of the decoding process (S502) can be arbitrarily selected, and conventional techniques can be used as appropriate. When the public key method is used as in the above embodiment, it can be decrypted with the private key (20) on the receiving side, so processing is performed using the private key (20) stored in advance in the hard disk (53) or the like. ,
Restore data (51) is generated.

After the decryption process (S502), the network transmission / reception unit (93) transmits / receives data to / from the reward point management server (4) that manages the reward points of each user via the network, and the reward point data reading unit (91 ) Through the decryption process (S50).
The reward point data reading process (S504) for reading the reward point data (52) of the user who performed 2) is performed, and the reward point processing unit (92) performs the decryption process (S
Reward point processing (52) for processing reward point data (52) of the user who has performed 502)
S505) is performed.

FIG. 19 is a flowchart of a decoding process according to another embodiment.
The difference from the embodiment 12 shown in FIG. 18 is the reward point data reading process (S504).
Is the timing to perform. In other words, this corresponds to the difference between the first embodiment shown in FIG. 3 and the second embodiment shown in FIG.
That is, before the decryption process (S502), the network transmission / reception unit (93)
Reward point data read processing for transmitting / receiving data to / from the reward point management server (4) via the network, and reading the reward point data (52) of the user to be decrypted (S502) by the reward point data read unit (91). (S504) is performed.
The reward point process (S505) is performed after the decryption process (S502) as in the twelfth embodiment.

In addition, reward point data (52) of a candidate who is a candidate for a user who performs decryption processing in advance.
Is stored in a storage device such as the memory (82) or the hard disk (83), and immediately before performing the decryption process (S502), the user who actually performs the decryption process (S502) is specified, and The user reward point data (52) may be read out.

It should be noted that such reward point data read processing (S504) and decryption processing (S50).
2) may be executed substantially simultaneously by parallel processing or the like in the CPU (81). Other processing, for example, encryption read processing (S501) and reward point data read processing (S
The relationship with 504) is the same.
Further, the reward point data reading process (S504) may be performed before the encrypted data reading process (S501), and the design of such a context can be changed as appropriate.

FIG. 20 is a block diagram of a decoding apparatus (2) according to another embodiment, and FIG. 21 is a flowchart of the decoding process.
A difference from the twelfth embodiment shown in FIGS. 17 and 18 is that a time authentication process is added to the restored data (54). In other words, this corresponds to the difference between the first embodiment shown in FIGS. 2 and 3 and the third embodiment shown in FIGS.
That is, immediately after the decoding process (S502), the network transmitting / receiving unit (93)
Data is transmitted / received via the network to / from the time authentication management server (5) that manages time authentication, and the time data reading unit (94) performs time data reading processing (S507) for reading the time data (53).
Next, time data (5) temporarily stored by the time data processing unit (95) indicating the current time.
A time data process (S508) for performing the approval process 3) is performed. In addition, the concrete management process of time authentication can use the said prior art and a well-known technique suitably.
Then, the time data authenticated by the data connection processing unit (96) and the restored data (
51) to generate the time authentication additional restoration data (54) (S5).
09).
Such time data processing (S508) and decryption processing (S502) are performed by CPU (
You may perform substantially simultaneously by the parallel processing etc. in 81).

FIG. 22 is a flowchart of the encryption process according to another embodiment, which is the embodiment 14 shown in FIG.
Is the timing for performing time authentication. In other words, this corresponds to the difference between the third embodiment of FIG. 5 and the fourth embodiment of FIG.
That is, immediately before the decryption process (S502), the network transmission / reception unit (93)
Data is transmitted / received to / from the time authentication management server (5) via the network, the time data reading unit (94) performs time data reading processing (S507), and the data connection processing unit (96) performs time data reading (53). ) And the encrypted data (14) are connected (S509).
The time data process (S508) is performed after the decryption process (S502) in the same manner as in the fourteenth embodiment to obtain a confirmed time authentication.
The time data process (S508) may also be performed immediately before the decryption process (S502), and the decryption process (S502) may be performed after obtaining the restored data with the time authentication added.

FIG. 23 is a flowchart of the decryption process of another embodiment, which is the embodiment 14 shown in FIG.
The difference is that the reward point data reading process (S504) is performed. In other words, it corresponds to a configuration in which time authentication similar to that of the fourteenth embodiment shown in FIG. 21 is added to the thirteenth embodiment shown in FIG.

FIG. 24 is a flowchart of the encryption process of another embodiment, and the embodiment 15 shown in FIG.
The difference is that the reward point data reading process (S504) is performed. In other words, it corresponds to a configuration in which time authentication similar to that of the fourteenth embodiment shown in FIG. 21 is added to the thirteenth embodiment shown in FIG.
The time data reading process (S507) and the reward point data reading process (S50).
The order of 4) may be changed, and such a context can be appropriately changed in design.

FIG. 25 is a block diagram of a decoding apparatus (2) according to another embodiment, and FIG. 26 is a flowchart of the decoding process.
The difference from the twelfth embodiment shown in FIGS. 17 and 18 is that a process of presenting information is added in the decoding process (S502). In other words, this corresponds to adding the process of the presentation information data (55) as in the case of adding the time authentication process in the fourteenth embodiment shown in FIG.
The presentation data reading unit (97) causes the network transmission / reception unit (93) to transmit / receive data to / from a server that provides and manages presentation information such as advertisements via the network, or to access a storage device such as the hard disk (83). Thus, the presentation data reading process (S510) for reading the presentation information data (55) to be presented when the encrypted data (14) is decrypted.
)I do.
After the decryption process (S502), the presentation data processing unit (98) performs a presentation data process (S511) for presenting the presentation data (55 ′).

As described above, the presentation data process (S511) for displaying the presentation information on the monitor (84) may be performed subsequent to the decoding process (S502), or substantially simultaneously with the decoding process (S502). Alternatively, it may be before the encryption process (S102).

FIG. 27 is a flowchart of the decryption processing of another embodiment, and the embodiment 18 shown in FIG.
Is the timing of performing the information presentation process.
In other words, this is equivalent to adding the process of the presentation information data (55) as in the case of adding the time authentication process in the fifteenth embodiment shown in FIG.

FIG. 28 is a block diagram of a decoding apparatus (2) according to another embodiment, and FIG. 29 is a flowchart of the decoding process.
The difference from the eighteenth embodiment shown in FIGS. 25 and 26 is that the read data to be decrypted is not the encrypted data (14) but the presentation information-added encrypted encrypted data (56). Therefore, it is necessary to divide the presentation information data (55) from the presentation information-added encrypted encrypted data (56).
That is, the presentation information-added encrypted data (56) obtained in the presentation information-added encrypted data reading process (S512) is converted into the presentation information data (55), the encrypted data (14) by the data division processing unit (99). Data division processing (S513) is performed. Then, the presentation data reading unit (97) performs the presentation data reading process (S) for reading the presentation information data (55 ′) to be presented when the encrypted data (14) is decrypted, and the decrypting process (S502).
Before, after or simultaneously, the presentation data processing unit (98) performs presentation data processing (S511) for presenting presentation information.

Note that the data division process (S513) has a corresponding relationship with the data connection process (S109) described above, and a division process corresponding to the connection method may be performed, and conventional techniques can be used as appropriate. For example, when data is simply connected, it may be divided according to a flag position provided at the time of connection.

In the presentation data processing (S511), the presentation processing may be performed using the presentation setting information added by the encryption device (1). In this case, a presentation setting information rewriting unit can be attached to the CPU (81), and the presentation setting information can be rewritten after the presentation on the monitor (84) or the like. The number of times of presentation may be included in the presentation setting information, and for example, it may be determined that the initial value 5 is decremented by 1 for each presentation and presented as a presentation condition when this value is other than 0.

FIG. 30 is a flowchart of the decryption process of another embodiment, which is the embodiment 20 shown in FIG.
The difference is that the reward point data reading process (S504) is performed. In other words, it corresponds to a configuration in which an information presentation process is added instead of the time authentication process in the fifteenth embodiment shown in FIG.

FIG. 31 is a flowchart of the decrypting process of another embodiment, which is the embodiment 20 shown in FIG.
And the timing of performing the presentation information reading process (S510). In other words, it corresponds to a configuration in which an information presentation process is added instead of the time authentication process in the sixteenth embodiment shown in FIG.

FIG. 32 is a flowchart of the decryption processing of another embodiment, which is the embodiment 20 shown in FIG.
Is the timing of performing the reward point data reading process (S504) and the timing of performing the presentation information reading process (S510). In other words, this embodiment corresponds to a configuration in which an information presentation process is added instead of the time authentication process in the seventeenth embodiment shown in FIG.

FIG. 33 is a block diagram of a decoding device (2) of another embodiment.
The difference from the embodiment 20 shown in FIG. 28 is that time authentication is added. In other words, both time authentication and information presentation are added to the twelfth embodiment shown in FIG.
As described above, the time data processing (S508) and the presentation data processing (S511) may be appropriately added, and both the time data (53) and the presentation information data (55) may be processed and output.

In the case of the above processing, after reward point processing (S105), reward point (12)
May be notified by e-mail or the like to the user who has performed the decryption process (S502) to increase the motivation for using the encrypted software.

Also, the network transmission / reception unit (43) generates encrypted data (14), time authentication-added encrypted data (15), presentation information-added encrypted data (17), time authentication and presentation information-added encrypted data (19). When it is received by the other party, it notifies the user who performed the encryption process (S103) together with the reception time that the encrypted data has been received, thereby improving the reliability of the encryption software and motivation for use. May be.

Further, after the decryption process (S502), the user who performed the encryption process (S103) is notified that the encrypted data (14) and the like have been restored, and the reliability and use of the encryption / decryption software is confirmed. You may increase your motivation.

The present invention may be provided as a program in an arbitrary language that executes one or both of the above encryption method and decryption method, or may be provided as a computer storage medium storing the program. Further, the computer storing the encrypted data (14), the time authentication additional encrypted data (15), the presentation information additional encrypted data (17), or the time authentication and presentation information additional encrypted data (19) generated thereby. A storage medium can also be provided.

According to the present invention, reward points are provided to users using the encryption or decryption software, so that the acquisition of reward points motivates the use of the encryption / decryption software, and the spread of the encryption / decryption software Leads to. Along with this, it becomes possible to lower the selling price and increase the capital for higher performance, and the encryption / decryption software becomes more widespread. Since the encryption / decryption software can be used for exchanging data on private or any business, it has high industrial utility value.

Explanatory drawing which shows the aspect by which the encryption apparatus and decryption apparatus by this invention are used Configuration diagram of encryption apparatus according to embodiment 1 Same as above, flowchart of encryption processing Flowchart of encryption processing of embodiment 2 Configuration diagram of encryption apparatus according to embodiment 3 Same as above, flowchart of encryption processing Flowchart of encryption processing of embodiment 4 Flowchart of encryption processing of embodiment 5 Flowchart of encryption processing of embodiment 6 Configuration diagram of encryption apparatus according to embodiment 7 Same as above, flowchart of encryption processing Flowchart of encryption processing according to embodiment 8 Flowchart of encryption processing according to embodiment 9 Flowchart of encryption processing according to embodiment 10 Configuration diagram of encryption apparatus of embodiment 11 Same as above, flowchart of encryption processing Configuration diagram of decoding apparatus of embodiment 12 Same as above, flowchart of decryption processing Flowchart of Decoding Process in Embodiment 13 Configuration diagram of decoding apparatus according to embodiment 14 Same as above, flowchart of decryption processing Flowchart of Decoding Process in Embodiment 15 Flowchart of Decoding Process in Embodiment 16 Flowchart of decoding process according to embodiment 17 Configuration diagram of decoding apparatus according to embodiment 18 Same as above, flowchart of decryption processing Flowchart of decoding process according to embodiment 19 Configuration diagram of decoding apparatus according to embodiment 20 Same as above, flowchart of decryption processing Flowchart of decoding process according to embodiment 21. Flowchart of decoding process according to embodiment 22 Flowchart of Decoding Process of Embodiment 23 Configuration diagram of decoding apparatus according to embodiment 24

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Encryption apparatus 2 Decryption apparatus 3 Internet 4 Reward point management server 5 Time authentication management server 6 Magnetic storage device 11 Original data 12, 12 'Reward point data 13 Time data 14 Encryption data 15 Time authentication additional encryption data 16 Presentation Information data 17 Presentation information-added encrypted data 18 Reception-side public key 19 Presentation information and time authentication-added encryption data 20 Reception-side secret key 31 CPU
32 Memory 33 Hard disk 34 Monitor 35 Keyboard / mouse 36 CD writing drive 37 Network adapter 38 Original data reading unit 39 Encryption processing unit 40 Data writing unit 41 Reward point data reading unit 42 Reward point processing unit 43 Network transmission / reception unit 44 Time Data reading unit 45 Time data processing unit 46 Data connection processing unit 47 Presentation data reading unit 48 Presentation data processing unit 51 Restoration data 52, 52 'Reward point data 53 Time data 54 Time authentication restoration data 55, 55' Presentation information data 56 Presentation information addition restoration data 81 CPU
82 Memory 83 Hard disk 84 Monitor 85 Keyboard / mouse 86 CD writing drive 87 Network adapter 88 Encrypted data reading unit 89 Decoding processing unit 90 Data writing unit 91 Reward point data reading unit 92 Reward point processing unit 93 Network transmission / reception unit 94 Time data reading unit 95 Time data processing unit 96 Data connection processing unit 97 Presentation data reading unit 98 Presentation data processing unit 99 Data division processing unit

Claims (34)

In an encryption device that encrypts original data by a computer and generates encrypted data,
An original data reading unit for reading original data;
An encryption processing unit for encrypting the original data read by the original data reading unit;
A network transmission / reception unit that is connected via a network to a reward point management server that manages reward points for each user;
A reward point data reading unit for reading reward point data of a user who has performed encryption processing or sending a public key for encryption processing;
An encryption device comprising: a reward point processing unit for processing reward point data read by the reward point data reading unit. The network transceiver is connected to the time authentication management server that manages time authentication,
A time data reading unit for reading time data;
The encryption device according to claim 1, further comprising: a time data processing unit that receives an authentication of a time at which the encryption process is performed and performs an approval process on the time data attached to the encrypted data. A presentation data reading unit that reads presentation information data to be presented when the original data is encrypted or when the encrypted data is decrypted thereby;
The encryption apparatus according to claim 1, further comprising: a presentation data processing unit that performs presentation processing of the presentation information read by the presentation data reading unit. In a decryption device that decrypts encrypted data in a computer and generates restored data,
An encrypted data reading unit for reading the encrypted data;
A decryption processing unit for decrypting the encrypted data read by the encrypted data reading unit;
A network transmission / reception unit that is connected via a network to a reward point management server that manages reward points for each user;
A reward point data reading unit for reading reward point data of a user who has performed the decryption process;
A decoding device comprising: a reward point processing unit for processing reward point data read by the reward point data reading unit. The network transceiver is connected to the time authentication management server that manages time authentication,
A time data reading unit for reading time data;
The decoding device according to claim 4, further comprising: a time data processing unit that receives authentication of a time when the decoding process is performed and performs an approval process on time data attached to the restored data. A presentation data reading unit for reading presentation information data to be presented when decrypting encrypted data;
The decoding device according to claim 4, further comprising: a presentation data processing unit that performs presentation processing of the presentation information read by the presentation data reading unit. In an encryption method for encrypting original data by a computer and generating encrypted data,
An original data reading step of reading the original data by the original data reading unit;
An encryption processing step for encrypting the original data by the encryption processing unit;
After the encryption process,
The network transmission / reception unit sends / receives data via the network to the reward point management server that manages the reward points of each user, and the reward point data reading unit
Reward point data reading step for reading reward point data of a user who has performed encryption processing or public key transmission for encryption processing,
A reward point processing step for processing reward point data of a user who has performed encryption processing or sending of a public key for encryption processing by a reward point processing unit. In an encryption method for encrypting original data by a computer and generating encrypted data,
An original data reading step of reading the original data by the original data reading unit;
An encryption processing step for encrypting the original data by the encryption processing unit;
After the encryption process,
Reward point data reading step for reading out reward point data of a user who performs encryption processing or public key transmission for encryption processing from a storage device that has been stored in advance by a reward point data reading unit;
Incentives for users who send / receive data via a network to / from the reward point management server that manages reward points for each user via the network transmission / reception unit, and send the public key for encryption processing or encryption processing by the reward point processing unit A reward point processing step for processing the point data. In an encryption method for encrypting original data by a computer and generating encrypted data,
An original data reading step of reading the original data by the original data reading unit;
The network transmission / reception unit sends / receives data via the network to the reward point management server that manages the reward points of each user, and the reward point data reading unit
Reward point data reading step for reading reward point data of a user who performs encryption processing or sending a public key for encryption processing,
An encryption processing step for encrypting the original data by the encryption processing unit;
After the encryption process,
A reward point processing step for processing reward point data of a user who has performed encryption processing or sending of a public key for encryption processing by a reward point processing unit. In an encryption method for encrypting original data by a computer and generating encrypted data,
An original data reading step of reading the original data by the original data reading unit;
Reward point data reading step for reading out reward point data of a user who performs encryption processing or sending public key for encryption processing from a storage device that has been stored in advance by a reward point data reading unit;
An encryption processing step for encrypting the original data by the encryption processing unit;
After the encryption process,
Incentives for users who send / receive data via a network to / from the reward point management server that manages reward points for each user via the network transmission / reception unit, and send the public key for encryption processing or encryption processing by the reward point processing unit A reward point processing step for processing the point data. A time transmission / reception unit that transmits and receives data via a network with a time authentication management server that manages time authentication, and a time data reading unit that reads time data by a time data reading unit;
After the encryption process,
A time data processing step for approving the time data by the time data processing unit;
11. The encryption method according to claim 7, further comprising: a data concatenation process step of concatenating the encrypted data and the time data to generate time authentication-added encrypted data by a data concatenation processing unit. A time transmission / reception unit that transmits and receives data via a network with a time authentication management server that manages time authentication, and a time data reading unit that reads time data by a time data reading unit;
A data concatenation processing step of concatenating the original data and the time data to generate time authentication additional original data by the data concatenation processing unit;
After the encryption process,
11. The encryption method according to claim 7, further comprising: a time data processing step of generating a time authentication-added encrypted data by performing an approval process on the time data by a time data processing unit. A presentation data reading step of reading presentation information data to be presented when the original data is encrypted or when the encrypted data is decrypted by the presentation data reading unit;
After the encryption process,
A presentation data processing step of presenting presentation information by the presentation data processing unit;
The encryption method according to any one of claims 7 to 12, further comprising: a data connection processing step of generating encrypted presentation data-added encrypted data by connecting encrypted data and presentation information data by a data connection processing unit. A presentation data reading step of reading presentation information data to be presented when the original data is encrypted or decrypted by the presentation data reading unit;
A data concatenation processing step of concatenating the original data and the presentation information data to generate presentation information addition original data by the data concatenation processing unit;
After the encryption process,
The encryption method according to claim 7, further comprising a presentation data processing step of presenting presentation information and generating presentation information-added encrypted data by a presentation data processing unit. The encryption method according to claim 13 or 14, wherein the presentation information is any one of text data relating to an advertisement, image data, audio data, audio, and video data including a moving image. The encryption method according to claim 13 or 14, wherein the presentation information data is a file name, a path name, or a network address of any one of text data relating to an advertisement, image data, audio data, audio and moving image data. After reward point processing,
The encryption method according to any one of claims 7 to 16, further comprising a reward point update notification step of notifying a user who has performed encryption processing that a reward point has been updated. After the network transmission / reception unit transmits the encrypted data, the time authentication additional encrypted data, the presentation information additional encrypted data, or the time authentication and the presentation information additional encrypted data,
The encryption method according to any one of claims 7 to 17, further comprising an encrypted data transmission notification step of notifying a user who has performed the encryption processing that the encrypted data has been transmitted together with a transmission time. In a decryption method for decrypting encrypted data by a computer and generating restored data,
An encrypted data reading step for reading the encrypted data by the encrypted data reading unit;
A decryption processing step for decrypting the encrypted data by the decryption processing unit;
After the decryption process,
The network transmission / reception unit sends and receives data via the network to the reward point management server that manages the reward points of each user, and the reward point data reading unit
Reward point data reading step for reading reward point data of the user who has performed the decryption process,
A reward point processing step of processing reward point data of a user who has been decrypted by a reward point processing unit. In a decryption method for decrypting encrypted data by a computer and generating restored data,
An encrypted data reading step for reading the encrypted data by the encrypted data reading unit;
A decryption processing step for decrypting the encrypted data by the decryption processing unit;
After the decryption process,
Reward point data reading step for reading the reward point data of the user performing the decryption process from the storage device that has been stored in advance by the reward point data reading unit;
A reward point processing step for transmitting / receiving data via the network to / from the reward point management server that manages each user's reward points by the network transmission / reception unit, and processing the reward point data of the decrypted user by the reward point processing unit And a decoding method characterized by comprising: In a decryption method for decrypting encrypted data by a computer and generating restored data,
An encrypted data reading step for reading the encrypted data by the encrypted data reading unit;
The network transmission / reception unit sends / receives data via the network to the reward point management server that manages the reward points of each user, and the reward point data reading unit
Reward point data reading step for reading reward point data of a user who performs decryption processing,
A decryption processing step for decrypting the encrypted data by the decryption processing unit;
After the decryption process,
A reward point processing step of processing reward point data of a user who has been decrypted by a reward point processing unit. In a decryption method for decrypting encrypted data by a computer and generating restored data,
An encrypted data reading step for reading the encrypted data by the encrypted data reading unit;
Reward point data reading step for reading the reward point data of the user performing the decryption process from the storage device that has been stored in advance by the reward point data reading unit;
A decryption processing step for decrypting the encrypted data by the decryption processing unit;
After the decryption process,
A reward point processing step for transmitting / receiving data via the network to / from the reward point management server that manages each user's reward points by the network transmission / reception unit, and processing the reward point data of the decrypted user by the reward point processing unit And a decoding method characterized by comprising: A time transmission / reception unit that transmits and receives data via a network with a time authentication management server that manages time authentication, and a time data reading unit that reads time data by a time data reading unit;
After the decryption process,
A time data processing step for approving the time data by the time data processing unit;
The decoding method according to any one of claims 19 to 22, further comprising a data concatenation processing step of concatenating the reconstructed data and the time data by the data concatenation processing unit to generate time authentication-added reconstructed data. A time transmission / reception unit that transmits and receives data via a network with a time authentication management server that manages time authentication, and a time data reading unit that reads time data by a time data reading unit;
A data concatenation processing step of concatenating the encrypted data and the time data by the data concatenation processing unit to generate encrypted data with time authentication;
After the decryption process,
The decoding method according to any one of claims 19 to 22, further comprising a time data processing step in which the time data is approved by the time data processing unit to generate time authentication additional restoration data. A presentation data reading step of reading presentation information data to be presented at the time of decryption of the encrypted data by the presentation data reading unit;
Before or after the decryption process,
The decoding method according to any one of claims 19 to 24, further comprising a presentation data processing step including a presentation data processing step of presenting presentation information by a presentation data processing unit. A data division step of dividing the presentation information-added encrypted data into presentation information data and encrypted data by the data division processing unit;
A presentation data reading step of reading presentation information data to be presented at the time of decryption of the encrypted data by the presentation data reading unit;
Before or after the decryption process,
The decoding method according to any one of claims 19 to 24, further comprising a presentation data processing step of presenting presentation information by a presentation data processing unit. 27. The decoding method according to claim 25 or 26, wherein the presentation information is any one of text data relating to an advertisement, image data, audio data, audio and video data including a moving image. 27. The decoding method according to claim 25 or 26, wherein the presentation information data is a file name, a path name, or a network address of any one of video data including text data, image data, audio data, audio and moving images related to an advertisement. After reward point processing,
The decryption method according to any one of claims 19 to 28, further comprising a reward point update notification step for notifying a user who has performed decryption processing that a reward point has been updated. After the network transmission / reception unit receives the encrypted data or the time authentication additional encrypted data or the presentation information additional encrypted data or the time authentication and the presentation information additional encrypted data,
30. The decryption method according to any one of claims 19 to 29, further comprising an encrypted data reception notifying step for notifying a user who has performed the encryption processing together with a reception time that the encrypted data has been received. After the decryption process,
The decryption method according to any one of claims 19 to 30, further comprising a restoration notification step of notifying a user who has performed encryption processing that the encrypted data has been restored. An encryption program for causing a computer to function as the encryption device according to claims 1 to 3 or executing the encryption method according to claims 7 to 17,
A decoding program for causing a computer to function as the decoding device according to claims 4 to 6, or for executing the decoding method according to claims 18 to 31,
A program characterized by having either or both of: A computer storage medium storing the program according to claim 32. The encrypted data according to any one of claims 1 to 3, or the encrypted data generated by the encryption method according to any one of claims 7 to 17, the encrypted data with time authentication, the encrypted data with presentation information, the time authentication, and A computer storage medium characterized by storing presentation information-added encrypted data.

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