CN104917734A - Safety communication system and safety communication method - Google Patents
Safety communication system and safety communication method Download PDFInfo
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- CN104917734A CN104917734A CN201410095089.4A CN201410095089A CN104917734A CN 104917734 A CN104917734 A CN 104917734A CN 201410095089 A CN201410095089 A CN 201410095089A CN 104917734 A CN104917734 A CN 104917734A
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Abstract
The invention provides a safety communication system and a safety communication method. The safety communication method comprises the following steps: receiving an input signal from a first user, wherein the input signal comprises content information sent to a second user by the first user and identity information of the first user and the second user; judging information type of the content information of the input signal; if the information type is privacy information, judging the privacy type of the content information of the input signal and carrying out encryption processing on the input signal; searching whether related enciphered data of the content information which is sent to the first user by the second user before and of which the privacy types are consistent exists in a storage unit; and judging whether to send the content information of the input signal to the second user according to the research results. The safety communication system and the safety communication method allow the communication to be safe and reliable and can protect the privacy information of the users.
Description
Technical field
The present invention relates to communication technical field, particularly relate to a kind of safe communication system and the safety communicating method with information privacy function.
Background technology
Among daily life, people can run into unavoidably to be needed to carry out explaining to other people, apologize, propose to say good-bye or to situations such as the communications of tender subject, but due to personality reason, some people because fear slowly dare not be showed regard by addressee refuses, thus causes miss opportunity and stays sorry on foot.Two people such as originally found each other congenial, because introverted reason, do not dare to the other side's vindication, late when result etc. find that the other side has a mind to oneself equally.Again such as, have people to want for some reason to apologize to other people, and the other side also has a mind to forgive this person, but concerning the pride, both sides do not have action, a pair good friend from then on stranger as a result.
Have benefited from current various means of communication easily, as the chat software etc. of mobile phone, QQ class, people are without the need to just sending all kinds of privacy content to the other side face-to-face, but use this kind of means of communication to there is shortcoming equally, such as information is just difficult to cancel once transmission, if vindication or apology etc. suffer addressee refuses, sender can feel awkward equally, affects normal contacts that are follow-up and the other side.And if privacy information meets with leakage, can bring certain embarrassment or loss equally to party.
Summary of the invention
Have benefited from the Internet and advanced cryptography mechanism, the invention provides a kind of safe communication system, to realize personal secrets, promote interpersonal optimum communication.
Particularly, one embodiment of the invention provide a kind of safe communication system, and this safe communication system comprises signal input unit, signal processing unit, memory cell, searches unit, signal output unit and control unit.This signal input unit for receiving the input signal from a first user, this input signal comprise that this first user sends to the identity information of the content information of one second user and this first user and this second user.This signal processing unit is for judging the information type of the content information of this input signal, if this information type is privacy information, judges the privacy type of the content information of this input signal further, and is encrypted this input signal.This memory cell is for storing the related encrypted data of this input signal.This search unit for search in this memory cell whether have that this second user previously sent to this first user, and the related encrypted data of the consistent content information of privacy type.This signal output unit is for sending information to this first user and this second user.This control unit is used for judging whether that the content information sending this input signal is to this second user according to this lookup result searching unit; Wherein, if lookup result be have that this second user previously sent to this first user, and the related encrypted data of the consistent content information of privacy type, then this control unit controls this signal output unit and sends the content information of this input signal to this second user, and this second user had previously been sent send to this first user to the content information of this first user.
Preferably, this signal processing unit generates the first hashed value data after the identity information data of the identity information data of this first user, this second user and privacy categorical data being arranged in order, and these the first hashed value data are supplied to this search unit.
Preferably, this is searched unit in this memory cell, searches whether there are the hashed value data identical with these the first hashed value data.
Preferably, if do not find the hashed value data identical with these the first hashed value data, then this is searched unit and notifies that this signal processing unit is to make after the order of the identity information data of the identity information data of this first user and this second user exchanges by this signal processing unit, generate the second hashed value data again with after the arrangement of privacy categorical data, and by this second hashed value data storing in this memory cell.
Preferably, after the pot-life, this control unit deletes the input signal from this first user after the encryption be stored in this memory cell, and wherein this pot-life presets for user or system.
Preferably, before this pot-life, if this signal input unit receives the request cancelling transmission sent from this first user, this signal input unit notifies that this control unit deletes the input signal from this first user after the encryption be stored in this memory cell to make this control unit.
Preferably, this signal processing unit further the content information of this input signal is adopted the identity information data of this second user be encrypted after be stored in this memory cell.
Preferably, before this pot-life, if this signal input unit receive that this second user sends to this first user, and the content information that privacy type is consistent, then this control unit control this signal processing unit utilize the content information of the identity information data of this second user to this input signal be decrypted after send to this second user by this signal output unit, and control this signal output unit directly by this second user send send to this first user to the content information of this first user.
Preferably, this input signal also comprises the type information of content information, and this signal processing unit resolves the information type of the content information obtained in this input signal to this input signal.
Preferably, this signal processing unit comprises semantic analysis unit, and this semantic analysis unit is used for carrying out semantic analysis to the content information in this input signal, to judge the information type of this content information.
Preferably, when this semantic analysis unit cannot judge the information type of this content information, this semantic analysis unit notifies this control unit, this control unit controls this signal output unit and controls this signal output unit and send a selection information to this first user, selects the information type of the content information in this input signal for this first user.
The present invention also provides a kind of safety communicating method, to realize personal secrets, and promotes interpersonal optimum communication.
Particularly, one embodiment of the invention provide a kind of safety communicating method, this safety communicating method comprises the following steps: receive the input signal from a first user, this input signal comprise that this first user sends to the identity information of the content information of one second user and this first user and this second user; Judge the information type of the content information of this input signal; If this information type is privacy information, judges the privacy type of the content information of this input signal further, and this input signal is encrypted; Search in a memory cell whether have that this second user previously sent to this first user, and the related encrypted data of the consistent content information of privacy type; And judge whether that according to lookup result the content information sending this input signal is to this second user.
Due to described safe communication system and safety communicating method can by the identity information of the identity information of sender (such as phone number), recipient and send privacy content information type link up generation hashed value; privacy can be protected thus, even if system manager also has no way of finding out about it.Further, only have the hashed value consistent to the privacy content information type of sender worked as and find recipient and previously sent, just the content information of current sender can be sent to recipient, and recipient had previously been sent send to sender to the content information of sender, thus avoid the sender person of being received refusal after embarrassment.Further, if do not find the hashed value consistent to the privacy content information type of sender that recipient had previously sent, the information type of the content information that system then can send according to user, privacy information is encrypted and preserves and delete after certain time limit, guarantee that the privacy information of user can not be revealed thus, avoid and caused awkward situation by addressee refuses.
For making technique scheme of the present invention and advantage become apparent, special embodiment below, and be described with reference to the accompanying drawings as follows.
Accompanying drawing explanation
Fig. 1 is the frame structure schematic diagram of a kind of safe communication system that one embodiment of the invention provide.
Fig. 2 is the frame structure schematic diagram of a kind of safe communication system that another embodiment of the present invention provides.
Fig. 3 is the schematic flow sheet of a kind of safety communicating method that one embodiment of the invention provide.
Embodiment
For further setting forth the present invention for the technological means reaching predetermined goal of the invention and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to the embodiment proposed according to the present invention, method, step, structure, feature and effect, be described in detail.
The safe communication system that embodiments of the invention provide and safety communicating method are mainly used in transmission information between user, and in an embodiment of the present invention, transmission information is called sender to the other side, and the object be sent out is called recipient.
Please refer to Fig. 1, the frame structure schematic diagram of its a kind of safe communication system provided for one embodiment of the invention.As shown in Figure 1, in the present embodiment, safe communication system 100 comprises signal input unit 101, control unit 103, signal processing unit 105, searches unit 106, memory cell 107 and signal output unit 109.Wherein, signal input unit 101, signal processing unit 105, search unit 106, memory cell 107 and signal output unit 109 and be all coupled to control unit 103, work under the control of control unit 103.
Signal input unit 101 is for receiving an input signal and this input signal being supplied to signal processing unit 105, this input signal is from the user terminal of a sender, and this input signal comprises the identity information of sender and recipient and the content information of transmission.This user terminal can be mobile phone, PC, communication software user side etc.This identity information depends on the user terminal that user (i.e. sender and recipient) uses, and such as user contacts the other side according to mobile phone, and so the identity information of sender and recipient can be the phone number of both sides; Such as user contacts the other side according to communication software user side again, and so the identity information of sender and recipient can be the user name of both sides.The identity information of sender of the present invention and recipient is not limited to above-mentioned two kinds of enumerating, as long as the user terminal that user uses can confirm or the identity information of certification sender and recipient.This content information can be text message, voice messaging or video information etc., but is not limited thereto.
The process such as signal processing unit 105 for judging the information type of the content information of input signal, and is encrypted input signal, deciphering.The information type of this content information can be directly contained in input signal, by sender initiatively editor, signal processing unit 105 can resolve to obtain the information type of this content information after receiving the input signal that signal input unit 101 provides to this input signal.The type information is determined according to transmission content, and can be the privacy informations such as vindication class, apology class, proposition departure class, also can be the general information of non-privacy class.The present invention for the information type of content information be not limited to enumerate above-mentioned several, can determine according to practical situation.Sender initiatively the type of content of edit information situation as: sender can indicate the information type of content information in the title sending content, or the information type of a list separator (as quotation marks, bracket etc.) description information is passed through at the head end or end that send content, as: [privacy; Vindication], [privacy; Apology], [generally] etc.The present invention does not limit, as long as safe communication system 100 can identification for the form of the information type of user's active content of edit information.
In other embodiments, the information type of content information also can by safe communication system 100 automatically after signal input unit 101 receives the content information that sender sends, and sends a selection information obtain to after the information type of sender for sender's chosen content information by signal output unit 109.Specifically, after the input signals are received, notice control unit 103, control unit 103 control signal output unit 109 sends a selection information to the information type of sender for sender's chosen content information to signal input unit 101.This selection information can be " may I ask this information is general information or privacy information? ", or " please information type be select: A. is general; B. privacy ", sender can return to safe communication system 100 according to after its user terminal selecting information type.If signal input unit 101 receives the back information of sender, then this back information is supplied to signal processing unit 105 and resolves.Analysis result is supplied to control unit 103 by signal processing unit 105.If analysis result is general information, the content information of sender is directly sent to recipient by signal output unit 109 by control unit 103; If analysis result is privacy information, control unit 103 control signal output units 109 send another selection information and select privacy type to sender for sender, as " privacy information that please to select be which kind of (vindication/apology/propose departures/XX/ other) ", or " privacy type please be select: B1. vindication; B2. apologize; B3. propose to say good-bye; B4. other ".
In addition, safe communication system 100 also can only send a selection information and select to sender, as " if may I ask this information is general information or privacy information? privacy information; the privacy information that please to select be which kind of (vindication/apology/propose departure/XX/ other) ", or " please information type be select: A. is general; B. privacy: B1. explains; B2. apologize; B3. propose to say good-bye; B4. other ".
The present invention does not limit for the content and form etc. of above-mentioned exemplified selection information.
When the information type of content information is privacy information and signal processing unit 105 gets privacy type, signal processing unit 105 pairs of input signals are encrypted.Specifically, signal processing unit 105 is by the identity information data of sender, after the identity information data of recipient and privacy category data are arranged in order according to certain data format, as, data format after arrangement can be: the identity information data > ︱ < privacy category data > of the identity information data > ︱ < recipient of < sender, hashed value data are generated again according to hash function, and generated hashed value data are supplied to search unit 106.
Search unit 106 and in memory cell 107, search whether there are identical hashed value data for the hashed value data generated according to signal processing unit 105.If search unit 106 to find there are not identical hashed value data in memory cell 107 after searching, the privacy information not sending identical type before present receiver to current sender is then described, searching unit 106 provides corresponding and feeds back to signal processing unit 105.Signal processing unit 105 according to search feedback information that unit 106 provides by after the identity information data transposition of the identity information data of sender and recipient again with privacy category data arrangement after, as, data format after arrangement can be: the identity information data > ︱ < privacy category data > of the identity information data > ︱ < sender of < recipient, hashed value data by this hashed value data storing in memory cell 107 are generated again according to hash function, be stored in memory cell 107 after transmission content being utilized the identity information data of recipient (as cell-phone number or user name etc.) encryption simultaneously.
If search unit 106 to find to there are identical hashed value data in memory cell 107 after searching, sent the privacy information of identical type to before current recipient is then described current sender, search unit 106 and this lookup result is supplied to control unit 103, the transmission content of current sender is directly sent to present receiver according to this lookup result control signal output unit 109 by control unit 103, and control signal processing unit 105 by send to before present receiver the privacy information of current sender utilize the identity information data of current sender decipher after send to current sender by signal output unit 109.
Memory cell 107 for storing the information data processed through signal processing unit 105, the transmission content information etc. of hashed value as the aforementioned, encryption.Memory cell 107 can be the memory of any type in server or computer system, such as dynamic random access memory (DRAM), static random access memory (SRAM), flash memory (Flash memory), read-only memory (ROM) etc., the present invention is not limited this, can select according to actual demand.
The hashed value that signal processing unit 105 can provide by memory cell 107 under the control of control unit 103 with preserve certain time limit through encrypted transmission content information, after this pot-life, control unit 103 is by this hashed value and delete through related datas such as encrypted transmission content informations.If before this pot-life, present receiver sends similar privacy information to current sender, then control unit 103 control signal processing unit 105 sends to present receiver by control signal output unit 109 after encrypted transmission content information being utilized the deciphering of the identity information data of recipient, and the transmission content information of present receiver is directly sent to current sender by control signal output unit 109.This time limit can be set automatically by safe communication system 100, also can by user's initiatively setting, as sender can indicate the pot-life in the title sending content, or indicate the pot-life at the head end or end sending content by a list separator (as quotation marks, bracket etc.), as: [privacy; Vindication]/[preserving 1 month] etc.The form that the present invention initiatively sets the pot-life for user does not limit, as long as safe communication system 100 can identification.
In addition, within this pot-life, if transmit leg does not receive the similar privacy information that the other side sends, also can send the information cancelling transmission according to specific data format to require to cancel previous transmission content information to safe communication system 100, such as, < cancels >:<20140214 and sends content >.The information format that the present invention initiatively cancels transmission for user does not limit, as long as safe communication system 100 can identification.
Signal output unit 109 is for sending information to the user terminal of user.
Below by describing the specific works situation of safe communication system 100 in detail, for convenience of description, sending message for a first user (sender) to one second user (recipient) and being described.
When this signal output unit 101 receives the input signal from first user, this input signal comprise that this first user sends to the identity information of the content information of the second user and this first user and this second user.This signal processing unit 105 judges the information type of the content information of this input signal, if the information type of this content information is non-privacy information, this signal processing unit 105 notifies that this content information is directly sent to this second user to make this control unit 103 control this signal output unit 109 by this control unit 103; If the information type of this content information is privacy information, this signal processing unit 105 judges the privacy type of the content information of this input signal further, after the identity information data of the identity information data of this first user, this second user and privacy categorical data being arranged in order, generating the first hashed value data, and these the first hashed value data are supplied to this search unit 106.
This is searched unit 106 in this memory cell 107, searches whether there are the hashed value data identical with these the first hashed value data, if exist, this is searched unit 106 and notifies that this control unit 103 directly sends the content information of this input signal to this second user to make this control unit 103 control this signal output unit 109, and this second user had previously been sent send to this first user to after the deciphering of the content information of this first user; If do not exist, this is searched unit 106 and notifies that this signal processing unit 105 is to make after the order of the identity information data of the identity information data of this first user and this second user exchanges by this signal processing unit 105, generate the second hashed value data again with after the arrangement of privacy categorical data, and by this second hashed value data storing in this memory cell 107, meanwhile, this signal processing unit 106 content information of this input signal is adopted the identity information data of this second user be encrypted after be stored in this memory cell 107.
Before a pot-life, if this signal input unit 101 receive that this second user sends to this first user, and the content information that privacy type is consistent, then this control unit 103 control this signal processing unit 105 utilize the content information of the identity information data of this second user to this input signal be decrypted after send to this second user by this signal output unit 109, and control that this second user directly sends by this signal output unit 109 send to this first user to the content information of this first user.
After this pot-life, this control unit 103 deletes the input signal from this first user after the encryption be stored in this memory cell 107.Or, before this pot-life, if this signal input unit 101 receives the request cancelling transmission sent from this first user, this signal input unit 101 notifies that this control unit 103 deletes the input signal after the encryption be stored in this memory cell 109 to make this control unit 103.
In the present embodiment; due to described safe communication system 100 can by the identity information (such as phone number) of sender, the identity information of recipient and send privacy content information type link up generation hashed value; privacy can be protected thus, even if system manager also has no way of finding out about it.Further, only have the hashed value consistent to the privacy content information type of sender worked as and find recipient and previously sent, just the content information of current sender can be sent to recipient, and recipient had previously been sent send to sender to the content information of sender, thus avoid the sender person of being received refusal after embarrassment.Further, if do not find the hashed value consistent to the privacy content information type of sender that recipient had previously sent, the information type of the content information that system 100 can send according to user, privacy information is encrypted and preserves and delete after certain time limit, guarantee that the privacy information of user can not be revealed thus, avoid and caused awkward situation by addressee refuses.
Please refer to Fig. 2, the frame structure schematic diagram of its a kind of safe communication system provided for another embodiment of the present invention.As shown in Figure 2, the safe communication system 200 that the present embodiment provides is similar to the safe communication system 100 shown in Fig. 1, and this safe communication system 200 comprises signal input unit 201, control unit 203, signal processing unit 205 equally, searches unit 206, memory cell 207 and signal output unit 209.Wherein, with safe communication system 100 unlike, in the present embodiment, signal processing unit 205 comprises a semantic analysis unit 202, this semantic analysis unit 202 for analyzing the content information in input signal, to judge the information type of content information.
Semantic analysis unit 202 is directly analyzed the natural language in the content information of input signal by semantic analysis technology, such as analyze the syntactic structure of content information, capture the intention to determine sender such as feature critical word of content information, thus judge the information type of content information, if be judged as privacy information, then which kind of privacy information (privacy type) judgement be further.As shown in Table 1:
| Send content | Keyword | Information type | Privacy type |
| I likes you | Like | Privacy | Vindication |
| Sorry, I am wrong | Sorry, wrong | Privacy | Apology |
| Tomorrow has a meal together | --- | Generally | --- |
Table one
After this semantic analysis unit 202 judges the information type of content information, if general information, this signal processing unit 205 notifies that this content information is directly sent to sending object to make this control unit 203 control this signal output unit 209 by this control unit 203; If the information type of this content information is privacy information, this signal processing unit 205 is encrypted input signal.
When this semantic analysis unit 202 cannot judge the information type of this content information, this semantic analysis unit 202 notifies this control unit 203, this control unit 203 controls this signal output unit 209 and controls this signal output unit transmission selection information to the user terminal providing this input signal, and the sender for this user terminal selects the information type of the content information in this input signal.Treat the information type that this user terminal passback sender selects, semantic analysis unit 202 reads again.
Safe communication system 200 in the present embodiment owing to directly utilizing semantic analysis unit 202 to judge the information type of content information, thus makes the efficiency of this safe communication system 200 higher, and more meets current intelligentized growth requirement.
Refer to Fig. 3, the schematic flow sheet of its a kind of safety communicating method provided for one embodiment of the invention, this safety communicating method can be used for above-mentioned safe communication system 100 and safe communication system 200.This safety communicating method comprises the following steps:
S30, receives the input signal from a first user, this input signal comprise that this first user (sender) sends to the identity information of the content information of one second user (recipient) and this first user and this second user.
S31, judges whether the information type of the content information of this input signal is privacy information, if so, performs step S32; If not, perform step S39.Wherein, judge that the information type of the content information of this input signal reads to carrying out parsing according to the back information of user again after user's selection by sending the selection information with set form, also directly the content information in input signal is analyzed by a semantic analysis unit, to judge the information type of content information.
S32, judge the privacy type of the content information of this input signal and this input signal is encrypted, after the identity information data of the identity information data of this first user, this second user and privacy categorical data being arranged in order, generating the first hashed value data.
S33, search in a memory cell whether have that this second user previously sent to this first user, and the related encrypted data of the consistent content information of privacy type, as searched the hashed value data identical with these the first hashed value data.If there are not identical hashed value data, perform step S34; If there are identical hashed value data, perform step S38.
S34, preservation is encrypted to this input signal, after order as the identity information data by the identity information data of this first user and this second user is exchanged, generate the second hashed value data again with after the arrangement of privacy categorical data, preserve this second hashed value data, and adopt the identity information data of this second user to be encrypted preservation the content information of this input signal.
S35, judges whether the request cancelling transmission receiving the transmission of this first user before a pot-life, if not, perform step S36; If so, step S37 is performed.
S36, judges whether to arrive this pot-life, if so, performs step S37; If not, get back to step S35.
S37, deletes the input signal from this first user of encryption.
S38, directly sends the content information of this input signal to this second user, and this second user had previously been sent send to this first user to the content information of this first user.Generally speaking, this second user previously need have been sent to the content information of this first user utilize the identity information data of first user decipher after send to this first user again.
S39, directly sends to this second user by the content information of this input signal.
In addition, after preservation is encrypted to the input signal from this first user, if received before the pot-life, this second user sends to this first user, the content information that privacy type is consistent, send the content information of this input signal after then needing this input signal to be decrypted to this second user, and directly this second user is sent send to this first user to the content information of this first user.Wherein, this input signal is decrypted mainly utilizes the content information of the identity information data of this second user to this input signal to be decrypted.
In the present embodiment; described safety communicating method can by the identity information of the identity information of sender's (first user) (such as phone number or user name etc.), recipient (the second user) and send privacy content information type link up generation hashed value; privacy can be protected thus, even if system manager also has no way of finding out about it.Further, only have the hashed value consistent to the privacy content information type of sender worked as and find recipient and previously sent, just the content information of current sender can be sent to recipient, and recipient had previously been sent send to sender to the content information of sender, thus avoid the sender person of being received refusal after embarrassment.Further, if do not find the hashed value consistent to the privacy content information type of sender that recipient had previously sent, the information type of the content information that then can send according to user, privacy information is encrypted and preserves and delete after certain time limit, guarantee that the privacy information of user can not be revealed thus, avoid and caused awkward situation by addressee refuses.
It should be noted that embodiments of the invention can by hardware implementing, the mode that also can add necessary general hardware platform by software realizes.Based on such understanding, the technical scheme of the embodiment of the present invention can embody with the form of software product, it (can be CD-ROM that this software product can be stored in a non-volatile memory medium, USB flash disk, portable hard drive etc.) in, comprise some instructions and perform each method implementing described in scene of the embodiment of the present invention in order to make a computer equipment (can be personal computer, server, or the network equipment etc.).
Below be only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with preferred embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (19)
1. a safe communication system, is characterized in that, this safe communication system comprises:
Signal input unit, for receiving the input signal from a first user, this input signal comprise that this first user sends to the identity information of the content information of one second user and this first user and this second user;
Signal processing unit, for judging the information type of the content information of this input signal, if this information type being privacy information, judging the privacy type of the content information of this input signal further, and being encrypted this input signal;
Memory cell, for storing the related encrypted data of this input signal;
Search unit, for search in this memory cell whether have that this second user previously sent to this first user, and the related encrypted data of the consistent content information of privacy type;
Signal output unit, for sending information to this first user and this second user; And
Control unit, the lookup result for searching unit according to this judges whether that the content information sending this input signal is to this second user; Wherein, if lookup result be have that this second user previously sent to this first user, and the related encrypted data of the consistent content information of privacy type, then this control unit controls this signal output unit and sends the content information of this input signal to this second user, and this second user had previously been sent send to this first user to the content information of this first user.
2. safe communication system according to claim 1, it is characterized in that, this signal processing unit generates the first hashed value data after the identity information data of the identity information data of this first user, this second user and privacy categorical data being arranged in order, and these the first hashed value data are supplied to this search unit.
3. safe communication system according to claim 2, is characterized in that, this is searched unit in this memory cell, searches whether there are the hashed value data identical with these the first hashed value data.
4. safe communication system according to claim 3, it is characterized in that, if do not find the hashed value data identical with these the first hashed value data, then this is searched unit and notifies that this signal processing unit is to make after the order of the identity information data of the identity information data of this first user and this second user exchanges by this signal processing unit, generate the second hashed value data again with after the arrangement of privacy categorical data, and by this second hashed value data storing in this memory cell.
5. safe communication system according to claim 4, it is characterized in that, after the pot-life, this control unit deletes the input signal from this first user after the encryption be stored in this memory cell, and wherein this pot-life presets for user or system.
6. safe communication system according to claim 5, it is characterized in that, before this pot-life, if this signal input unit receives the request cancelling transmission sent from this first user, this signal input unit notifies that this control unit deletes the input signal from this first user after the encryption be stored in this memory cell to make this control unit.
7. safe communication system according to claim 4, is characterized in that, this signal processing unit further the content information of this input signal is adopted the identity information data of this second user be encrypted after be stored in this memory cell.
8. safe communication system according to claim 6, it is characterized in that, before this pot-life, if this signal input unit receive that this second user sends to this first user, and the content information that privacy type is consistent, then this control unit control this signal processing unit utilize the content information of the identity information data of this second user to this input signal be decrypted after send to this second user by this signal output unit, and control this signal output unit directly by this second user send send to this first user to the content information of this first user.
9. safe communication system according to claim 1, is characterized in that, this input signal also comprises the type information of content information, and this signal processing unit resolves the information type of the content information obtained in this input signal to this input signal.
10. safe communication system according to claim 1, it is characterized in that, this signal processing unit comprises semantic analysis unit, and this semantic analysis unit is used for carrying out semantic analysis to the content information in this input signal, to judge the information type of this content information.
11. safe communication systems according to claim 10, it is characterized in that, when this semantic analysis unit cannot judge the information type of this content information, this semantic analysis unit notifies this control unit, this control unit controls this signal output unit and controls this signal output unit and send a selection information to this first user, selects the information type of the content information in this input signal for this first user.
12. 1 kinds of safety communicating methods, are applicable to a safe communication system, it is characterized in that, this safety communicating method comprises the following steps:
Receive from an input signal of a first user, this input signal comprise that this first user sends to the identity information of the content information of one second user and this first user and this second user;
Judge the information type of the content information of this input signal;
If this information type is privacy information, judges the privacy type of the content information of this input signal further, and this input signal is encrypted;
Search in a memory cell whether have that this second user previously sent to this first user, and the related encrypted data of the consistent content information of privacy type; And
Judge whether that according to lookup result the content information sending this input signal is to this second user.
13. safety communicating methods according to claim 12, it is characterized in that, to this input signal be encrypted comprise the identity information data of the identity information data of this first user, this second user and privacy categorical data be arranged in order after generate the first hashed value data.
14. safety communicating methods according to claim 13, it is characterized in that, search whether have that this second user previously sent to this first user, and the related encrypted data of the consistent content information of privacy type comprises and searches the hashed value data identical with these the first hashed value data.
15. safety communicating methods according to claim 14, is characterized in that, judge whether that the content information sending this input signal comprises to this second user according to lookup result:
If find the hashed value data identical with these the first hashed value data, directly send the content information of this input signal to this second user, and this second user had previously been sent send to this first user to the content information of this first user; And
If do not find the hashed value data identical with these the first hashed value data, preservation is encrypted to this input signal.
16. safety communicating methods according to claim 15, it is characterized in that, after this input signal is encrypted and preserves and comprise and the order of the identity information data of the identity information data of this first user and this second user to be exchanged, generate the second hashed value data again with after the arrangement of privacy categorical data, and preserve this second hashed value data.
17. safety communicating methods according to claim 16, is characterized in that, before a pot-life, if receive the request cancelling transmission that this first user sends, delete the input signal from this first user after this encryption, wherein, this pot-life presets for user or system.
18. safety communicating methods according to claim 15, is characterized in that, be encrypted preservation comprise further and adopt the identity information data of this second user to be encrypted preservation the content information of this input signal this input signal.
19. safety communicating methods according to claim 17, it is characterized in that, before this pot-life, if receive, this second user sends to this first user, and the content information that privacy type is consistent, utilize the content information of the identity information data of this second user to this input signal be decrypted after send the content information of this input signal to this second user, and directly this second user is sent send to this first user to the content information of this first user.
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