CN102123361B - Method and device for realizing encrypted message communication - Google Patents
Method and device for realizing encrypted message communication Download PDFInfo
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Abstract
The invention provides a method and a device for realizing encrypted message communication. The method comprises the following steps: a first unstructured supplementary service data (USSD) service request from a calling party terminal is received by a secret key center, wherein, the first USSD service request comprises a USSD operation code of the secrete key used for requesting the encrypted message for communication, a calling party terminal identification and a called party terminal identification; the first USSD service request is sent before a calling service request or a short message service request is initiated by the calling party terminal; the first secrete key communicated with the encrypted message is distributed by the secrete key center according to the USSD operation code; the distributed first secrete key communicated with the encrypted message is sent to the calling party terminal and the called party terminal by the secrete key center, thus the encrypted message communication is carried out on the encrypted message and/or the decrypted message of the calling party terminal and the called party terminal.
Description
Technical field
The embodiment of the present invention relates to the communication technology, relates in particular to a kind of implementation method and device of enciphered message communication.
Background technology
Information (voice or data) encryption end to end is a kind of technology that information is encrypted and deciphers, can realize information aloft in channel and core net network with the coded communication of cipher mode transmission, increase the security requirements of communication, met the demand of people to communication encryption.The implementation method of existing enciphered message communication is: at first calling party's terminal is carried out general information with callee's terminal and is communicated by letter, then, calling party's terminal and callee's terminal are initiated key request by short message to cipher key center simultaneously, key (encryption key and decruption key) with the communication of acquisition request enciphered message, calling party's terminal and callee's terminal utilize this key to be encrypted information communication after getting the key of cipher key center distribution by short message.
Yet, because the real-time of short message transmission and short message reception is lower, may make calling party's terminal and callee's terminal can not get key simultaneously, the switching time that has caused being switched to from general information communication enciphered message communication is longer, easily make either party's terminal abandon this enciphered message communication, thereby reduced the success rate of enciphered message communication.
Summary of the invention
The embodiment of the present invention provides a kind of implementation method and device of enciphered message communication, in order to avoid being switched to from general information communication longer problem switching time of enciphered message communication, improves the success rate of enciphered message communication.
The embodiment of the present invention provides a kind of implementation method of enciphered message communication, comprising:
Cipher key center receives the first non-structural supplementary data USSD service request from calling party's terminal, the USSD command code, calling party's terminal iidentification, the callee's terminal iidentification that comprise the key for asking enciphered message communication in a described USSD service request, a described USSD service request is that described calling party's terminal makes a call before service request or short message service request and sends;
Described cipher key center, according to described USSD command code, is distributed the first key of enciphered message communication;
The first key that described cipher key center is communicated by letter to the described enciphered message of described calling party's terminal and callee's terminal transmission distribution.
The embodiment of the present invention also provides a kind of implement device of enciphered message communication, comprising:
Receiver module, for receiving the first non-structural supplementary data USSD service request from calling party's terminal, the USSD command code, calling party's terminal iidentification, the callee's terminal iidentification that comprise the key for asking enciphered message communication in a described USSD service request, a described USSD service request is that described calling party's terminal makes a call before service request or short message service request and sends;
Processing module, for according to described USSD command code, distribute the first key of enciphered message communication;
Sending module, first key of communicating by letter for the described enciphered message that sends described processing module distribution to described calling party's terminal and callee's terminal.
As shown from the above technical solution, the embodiment of the present invention receives the USSD service request from calling party's terminal by cipher key center, according to the USSD command code comprised in a USSD service request, the first key that distributes enciphered message communication, make it possible to return to calling party's terminal and callee's terminal the first key that distributed above-mentioned enciphered message is communicated by letter, realized that calling party's terminal and callee's terminal are encrypted information communication, obtained in advance the key that enciphered message is communicated by letter with callee's terminal due to calling party's terminal, can directly be encrypted information communication, without from general information communication, being switched to enciphered message communication, avoided being switched to from general information communication longer problem switching time of enciphered message communication, thereby improved the success rate of enciphered message communication.
The accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
The schematic flow sheet of the implementation method of the enciphered message communication that Fig. 1 provides for the embodiment of the present invention one;
The schematic flow sheet of the implementation method of the enciphered message communication that Fig. 2 provides for the embodiment of the present invention two;
The structural representation of the implement device of the enciphered message communication that Fig. 3 provides for the embodiment of the present invention three.
Embodiment
For the purpose, technical scheme and the advantage that make the embodiment of the present invention clearer, below in conjunction with the accompanying drawing in the embodiment of the present invention, technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is the present invention's part embodiment, rather than whole embodiment.Embodiment based in the present invention, those of ordinary skills, not making under the creative work prerequisite the every other embodiment obtained, belong to the scope of protection of the invention.
The schematic flow sheet of the implementation method of the enciphered message communication that Fig. 1 provides for the embodiment of the present invention one, as shown in Figure 1, the implementation method of the enciphered message communication of the present embodiment can comprise the following steps:
Wherein, enciphered message communication can include but not limited to enciphoring voice telecommunication, encrypted data communications.
The first key that step 103, above-mentioned cipher key center are communicated by letter to the above-mentioned enciphered message of above-mentioned calling party's terminal and callee's terminal transmission distribution.
In the present embodiment, in above-mentioned steps 101～step 103, information interaction between calling party's terminal and cipher key center can be undertaken by the MSC of this calling party's terminal attaching, and the information interaction between callee's terminal and cipher key center can be undertaken by the MSC of this callee's terminal attaching.
Particularly, before calling party's terminal makes a call service request or short message service request, can first by USSD, operate to cipher key center and send a USSD service request, in order to ask the key of enciphered message communication.After cipher key center receives a USSD service request, according to the USSD command code comprised in a USSD service request, know the first key that needs to distribute enciphered message communication.Cipher key center distributes the detailed description of the first key of enciphered message communication referring to related content of the prior art, to repeat no more herein.After distributing the first key of enciphered message communication, cipher key center returns to above-mentioned calling party's terminal and callee's terminal the first key that distributed above-mentioned enciphered message is communicated by letter, and for above-mentioned calling party's terminal and above-mentioned callee's terminal encryption and/or decryption information, is encrypted information communication.
Particularly, cipher key center specifically can send by a USSD service response the first key of the described enciphered message communication distributed to described calling party's terminal; Correspondingly, cipher key center can send by a USSD service announcements the first key of the described enciphered message communication distributed to described callee's terminal.
Further, in the process that the secret key encryption of obtaining in calling party's terminal and the utilization of callee's terminal and/or decryption information are encrypted information communication, calling party's terminal can also be according to the secret grade of this calling party's terminal, the key of periodically communicating by letter to cipher key center request enciphered message, perhaps cipher key center also can be according to the secret grade of this calling party's terminal, periodically to calling terminal and terminal called, return to the key that enciphered message is communicated by letter, in order to realize regularly using different keys in the process of enciphered message communication, thereby further improved the fail safe of enciphered message communication, can meet the graduate different demand required of encrypting.
Particularly, cipher key center can be distributed the second key of enciphered message communication according to the secret grade of above-mentioned calling party's terminal, second key of communicating by letter to the above-mentioned enciphered message of above-mentioned calling party's terminal and callee's terminal transmission distribution.
Particularly, cipher key center specifically can send by the 2nd USSD service response the second key of the described enciphered message communication distributed to described calling party's terminal; Correspondingly, cipher key center can send by the 2nd USSD service announcements the second key of the described enciphered message communication distributed to described callee's terminal.
Alternatively, calling party's terminal also can be according to the secret grade of this calling party's terminal, periodically to cipher key center, send the 3rd USSD service request, the USSD command code that comprises the key for asking enciphered message communication in the 3rd USSD service request, after cipher key center receives the 3rd USSD service request, the 3rd key that distributes enciphered message communication, the 3rd key of communicating by letter to the above-mentioned enciphered message of calling party's terminal and callee's terminal transmission distribution.
Particularly, cipher key center specifically can send by the 3rd USSD service response the 3rd key of the described enciphered message communication distributed to described calling party's terminal; Correspondingly, cipher key center can send by the 3rd USSD service announcements the 3rd key of the described enciphered message communication distributed to described callee's terminal.
Here, after the calling and called terminal gets the first key and is encrypted communication, can obtain again the second key and be encrypted communication, can also obtain again further the 3rd key and be encrypted communication.
In the present embodiment, calling party's terminal can be utilized the first cipher key encryption information of obtaining, and callee's terminal can be utilized the first secret key decryption information of obtaining, realizes that calling party's terminal communicates by letter with the enciphered message between callee's terminal; Callee's terminal can be utilized the first cipher key encryption information of obtaining, and calling party's terminal can also be utilized the first secret key decryption information of obtaining, realizes that calling party's terminal communicates by letter with the enciphered message between callee's terminal.The service condition of the second key, the 3rd key is also similar, and the present embodiment repeats no more.
In the present embodiment, receive the USSD service request from calling party's terminal by cipher key center, according to the USSD command code comprised in a USSD service request, the first key that distributes enciphered message communication, make it possible to return to calling party's terminal and callee's terminal the first key that distributed above-mentioned enciphered message is communicated by letter, realized that calling party's terminal and callee's terminal are encrypted information communication, obtained in advance the key that enciphered message is communicated by letter with callee's terminal due to calling party's terminal, can directly be encrypted information communication, without from general information communication, being switched to enciphered message communication, avoided being switched to from general information communication longer problem switching time of enciphered message communication, thereby improved the success rate of enciphered message communication.
The schematic flow sheet of the implementation method of the enciphered message communication that Fig. 2 provides for the embodiment of the present invention two, the specific embodiment that the present embodiment is a upper embodiment.As shown in Figure 2, the implementation method of the enciphered message communication of the present embodiment can comprise the following steps:
Step 202, MSC are according to above-mentioned USSD command code, send USSD service request (MAP_PROCESS_UNSTRUCTURED_SS_REQUEST_req) to cipher key center, comprise USSD command code, calling party's terminal iidentification, callee's terminal iidentification of the key for asking enciphered message communication in above-mentioned USSD service request;
Particularly, for calling party's terminal, cipher key center can return to this calling party's terminal the key that distributed above-mentioned enciphered message is communicated by letter by the signaling connection (being that the USSD signaling connects) received from the USSD service request of calling party's terminal; For callee's terminal, at first cipher key center can be undertaken alternately by the HLR with callee's terminal attaching, determine the MSC that this callee's terminal is affiliated, after this MSC paging called partner terminal success, connect the key that sends the above-mentioned enciphered message communication distributed to callee's terminal by the USSD signaling.
Above-mentioned secret key encryption and/or decryption information that step 205, calling party's terminal and the utilization of callee's terminal are obtained, be encrypted information communication.
Particularly, after calling party's terminal and callee's terminal receive the key of cipher key center distribution, utilize the above-mentioned secret key encryption and/or the decryption information that obtain, be encrypted voice communication or encrypted data communications.
Further, cipher key center can be further according to the secret grade of above-mentioned calling party's terminal, another key that distributes (initiatively distributing) enciphered message communication, be encrypted information communication for above-mentioned calling party's terminal and the new key re-encrypted of above-mentioned callee's terminal utilization and/or the information of decrypt subsequent.Replacedly, calling party's terminal can be further according to the secret grade of this calling party's terminal, periodically to cipher key center, again send the USSD service request, after cipher key center receives this USSD service request, another key that distributes the communication of (passive distribution) enciphered message, be encrypted information communication for above-mentioned calling party's terminal and the new key re-encrypted of above-mentioned callee's terminal utilization and/or the information of decrypt subsequent.
In the present embodiment, receive the USSD service request from calling party's terminal by cipher key center, according to the USSD command code comprised in this USSD service request, the key that distributes enciphered message communication, make it possible to return to calling party's terminal and callee's terminal the key that distributed above-mentioned enciphered message is communicated by letter, realized that calling party's terminal and callee's terminal are encrypted information communication, obtained in advance the key that enciphered message is communicated by letter with callee's terminal due to calling party's terminal, can directly be encrypted information communication, without from general information communication, being switched to enciphered message communication, avoided being switched to from general information communication longer problem switching time of enciphered message communication, thereby improved the success rate of enciphered message communication.In addition, due to the key that cipher key center can periodically initiatively be distributed or passive distribution is new, thereby further improved the fail safe that enciphered message is communicated by letter.
It should be noted that: for aforesaid each embodiment of the method, for simple description, therefore it all is expressed as to a series of combination of actions, but those skilled in the art should know, the present invention is not subject to the restriction of described sequence of movement, because according to the present invention, some step can adopt other orders or carry out simultaneously.Secondly, those skilled in the art also should know, the embodiment described in specification all belongs to preferred embodiment, and related action and module might not be that the present invention is necessary.
In the above-described embodiments, the description of each embodiment is all emphasized particularly on different fields, there is no the part described in detail in certain embodiment, can be referring to the associated description of other embodiment.
The structural representation of the implement device of the enciphered message communication that Fig. 3 provides for the embodiment of the present invention three, as shown in Figure 3, the implement device of the enciphered message communication of the present embodiment can comprise receiver module 31, processing module 32 and sending module 33.Wherein, receiver module 31 is for receiving the USSD service request from calling party's terminal, the USSD command code, calling party's terminal iidentification, the callee's terminal iidentification that comprise the key for asking enciphered message communication in an above-mentioned USSD service request, an above-mentioned USSD service request is that above-mentioned calling party's terminal makes a call before service request or short message service request and sends; Processing module 32, for according to above-mentioned USSD command code, is distributed the first key of enciphered message communication; The first key that sending module 33 is communicated by letter for the above-mentioned enciphered message of distributing with callee's terminal transmission processing module 32 to above-mentioned calling party's terminal.
The implement device of the enciphered message communication that in the invention described above embodiment mono-, two, the function of cipher key center all can be provided by the embodiment of the present invention is realized.
Further, the processing module 32 in the present embodiment can also be further used for the secret grade according to above-mentioned calling party's terminal, distributes the second key of enciphered message communication; The second key that the above-mentioned enciphered message that sending module 33 can also be further used for distributing with above-mentioned callee's terminal transmission processing module 32 to above-mentioned calling party's terminal is communicated by letter.
Alternatively, receiver module 31 in the present embodiment can also be further used for receiving the 3rd USSD service request from calling party's terminal, comprise the USSD command code of the key for asking enciphered message communication in above-mentioned the 3rd USSD service request, above-mentioned the 3rd USSD service request is that above-mentioned calling party's terminal sends in being encrypted the information communication process according to the secret grade of this calling party's terminal; Processing module 32 can also be further used for distributing the 3rd key of enciphered message communication, the 3rd key that the above-mentioned enciphered message that sending module 33 can also be further used for distributing with above-mentioned callee's terminal transmission processing module 32 to above-mentioned calling party's terminal is communicated by letter.
In the present embodiment, receive the USSD service request from calling party's terminal by receiver module, processing module is according to the USSD command code comprised in a USSD service request, the first key that distributes enciphered message communication, make sending module to return to the first key that distributed above-mentioned enciphered message is communicated by letter to calling party's terminal and callee's terminal, realized that calling party's terminal and callee's terminal are encrypted information communication, obtained in advance the key that enciphered message is communicated by letter with callee's terminal due to calling party's terminal, can directly be encrypted information communication, without from general information communication, being switched to enciphered message communication, avoided being switched to from general information communication longer problem switching time of enciphered message communication, thereby improved the success rate of enciphered message communication.
One of ordinary skill in the art will appreciate that: realize that the hardware that all or part of step of said method embodiment can be relevant by program command completes, aforesaid program can be stored in a computer read/write memory medium, this program, when carrying out, is carried out the step that comprises said method embodiment; And aforesaid storage medium comprises: various media that can be program code stored such as ROM, RAM, magnetic disc or CDs.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although with reference to previous embodiment, the present invention is had been described in detail, those of ordinary skill in the art is to be understood that: its technical scheme that still can put down in writing aforementioned each embodiment is modified, or part technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the spirit and scope of various embodiments of the present invention technical scheme.
Claims (9)
1. the implementation method of an enciphered message communication, is characterized in that, comprising:
Cipher key center receives the first non-structural supplementary data USSD service request from calling party's terminal, the USSD command code, calling party's terminal iidentification, the callee's terminal iidentification that comprise the key for asking enciphered message communication in a described USSD service request, a described USSD service request is that described calling party's terminal makes a call before service request or short message service request and sends, in order to ask the key of enciphered message communication;
Described cipher key center, according to described USSD command code, is distributed the first key of enciphered message communication;
The first key that described cipher key center is communicated by letter to the described enciphered message of described calling party's terminal and callee's terminal transmission distribution.
2. method according to claim 1, is characterized in that, the first key that described cipher key center is communicated by letter to the described enciphered message of described calling party's terminal and callee's terminal transmission distribution comprises:
Cipher key center sends the first key of the described enciphered message communication distributed to described calling party's terminal by a USSD service response;
Cipher key center sends the first key of the described enciphered message communication distributed to described callee's terminal by a USSD service announcements.
3. method according to claim 1, is characterized in that, described method also comprises:
Described cipher key center, according to the secret grade of described calling party's terminal, is distributed the second key of enciphered message communication;
The second key that described cipher key center is communicated by letter to the described enciphered message of described calling party's terminal and described callee's terminal transmission distribution.
4. method according to claim 3, is characterized in that, the second key that described cipher key center is communicated by letter to the described enciphered message of described calling party's terminal and callee's terminal transmission distribution comprises:
Cipher key center sends the second key of the described enciphered message communication distributed to described calling party's terminal by the 2nd USSD service response;
Cipher key center sends the second key of the described enciphered message communication distributed to described callee's terminal by the 2nd USSD service announcements.
5. according to the described method of the arbitrary claim of claim 1 to 4, it is characterized in that, described method also comprises:
Described cipher key center receives the 3rd USSD service request from calling party's terminal, comprise the USSD command code of the key for asking enciphered message communication in described the 3rd USSD service request, described the 3rd USSD service request is that described calling party's terminal sends in being encrypted the information communication process according to the secret grade of this calling party's terminal;
Described cipher key center is distributed the 3rd key of enciphered message communication;
The 3rd key that described cipher key center is communicated by letter to the described enciphered message of described calling party's terminal and described callee's terminal transmission distribution.
6. method according to claim 5, is characterized in that, the 3rd key that described cipher key center is communicated by letter to the described enciphered message of described calling party's terminal and callee's terminal transmission distribution comprises:
Cipher key center sends the 3rd key of the described enciphered message communication distributed to described calling party's terminal by the 3rd USSD service response;
Cipher key center sends the 3rd key of the described enciphered message communication distributed to described callee's terminal by the 3rd USSD service announcements.
7. the implement device of an enciphered message communication, is characterized in that, comprising:
Receiver module, for receiving the first non-structural supplementary data USSD service request from calling party's terminal, the USSD command code, calling party's terminal iidentification, the callee's terminal iidentification that comprise the key for asking enciphered message communication in a described USSD service request, a described USSD service request is that described calling party's terminal makes a call before service request or short message service request and sends, in order to ask the key of enciphered message communication;
Processing module, for according to described USSD command code, distribute the first key of enciphered message communication;
Sending module, first key of communicating by letter for the described enciphered message that sends described processing module distribution to described calling party's terminal and callee's terminal.
8. device according to claim 7, is characterized in that,
Described processing module, also for the secret grade according to described calling party's terminal, is distributed the second key of enciphered message communication;
The second key that described sending module is also communicated by letter for the described enciphered message that sends described processing module distribution to described calling party's terminal and described callee's terminal.
9. according to the described device of claim 7 or 8, it is characterized in that,
Described receiver module is also for receiving the 3rd USSD service request from calling party's terminal, comprise the USSD command code of the key for asking enciphered message communication in described the 3rd USSD service request, described the 3rd USSD service request is that described calling party's terminal sends in being encrypted the information communication process according to the secret grade of this calling party's terminal;
Described processing module is also for distributing the 3rd key of enciphered message communication;
The 3rd key that described sending module is also communicated by letter for the described enciphered message that sends described processing module distribution to described calling party's terminal and described callee's terminal.
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| CN201010624681.0A CN102123361B (en) | 2010-12-31 | 2010-12-31 | Method and device for realizing encrypted message communication |
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| CN201010624681.0A CN102123361B (en) | 2010-12-31 | 2010-12-31 | Method and device for realizing encrypted message communication |
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| CN103139769B (en) * | 2011-11-30 | 2016-05-11 | 大唐联诚信息系统技术有限公司 | A kind of wireless communications method and network subsystem |
| CN104683098B (en) * | 2013-11-29 | 2019-09-10 | 中国移动通信集团公司 | A kind of implementation method of secure traffic, equipment and system |
| CN105516083A (en) * | 2015-11-25 | 2016-04-20 | 上海华为技术有限公司 | Data security management method, apparatus, and system |
| CN106911468B (en) * | 2015-12-23 | 2019-09-13 | 大唐半导体设计有限公司 | A kind of method and apparatus for realizing key agreement |
| CN107371145B (en) * | 2016-05-12 | 2021-11-05 | 中兴通讯股份有限公司 | USSD switching method and system, core network and original USSD platform |
| CN107872792A (en) * | 2016-09-23 | 2018-04-03 | 中兴通讯股份有限公司 | A kind of method, equipment and the system of encryption of conversing |
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| CN100362819C (en) * | 2003-09-30 | 2008-01-16 | 华为技术有限公司 | Method for acquiring WLAN accessing one-time password |
| CN100531034C (en) * | 2003-10-13 | 2009-08-19 | 华为技术有限公司 | Method for distributing one time ciphers for access networks |
| CN101217705B (en) * | 2008-01-09 | 2012-11-21 | 华为技术有限公司 | A realization method, system and device of USSD service |
| FR2932639B1 (en) * | 2008-06-12 | 2010-08-20 | Alcatel Lucent | DETECTION OF TRAFFIC FAULT ISSUED BY A MOBILE TERMINAL IN A RADIO COMMUNICATION NETWORK |
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