CN105992199B - A kind of bright close recognition methods of voice communication and system - Google Patents
A kind of bright close recognition methods of voice communication and system Download PDFInfo
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- CN105992199B CN105992199B CN201510044372.9A CN201510044372A CN105992199B CN 105992199 B CN105992199 B CN 105992199B CN 201510044372 A CN201510044372 A CN 201510044372A CN 105992199 B CN105992199 B CN 105992199B
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Abstract
The present invention provides a kind of bright close recognition methods of voice communication and systems, key agreement data frame is sent by the communicating pair of enciphoring voice telecommunication terminal to identify to other side, judge whether to recognize the key agreement data frame, it is to be identified as encrypted word, go to encrypted word communication, into encrypted word key agreement process, otherwise switch to unencryped word call.Suitable for the circuit domain and packet domain voice communication under 2G/3G/4G network, not only quickly, reliably, and network amendment Signalling exchange process is not needed, that is, does not need to be transformed existing network and can be achieved with the bright close differentiation of voice communication.
Description
Technical field
The present invention relates to a kind of bright close recognition methods of voice communication and systems, are suitable for 2G/3G/4G more particularly to one kind
The bright close recognition methods and system of circuit domain and packet domain voice communication under network.
Background technique
In the enciphoring voice telecommunication design of mobile communication system, if encryption mobile phone keyed in using one it is close (when dialing
May be selected directly to dial unencryped word or encrypted word, called automatic identification incoming call is unencryped word or encrypted word) mode carry out enciphoring voice telecommunication,
Realize the called bright close quick differentiation of incoming call.The prior art mostly uses out-of-band way to be determined, is fast with the advantages of outer judgement
Speed reliably, but needs network amendment Signalling exchange process, i.e., distinguishes unencryped word and encrypted word calling in the signaling, the generation of network is transformed
Valence is huge.
Summary of the invention
The technical problem to be solved in the present invention is to provide the circuit domains and packet domain under a kind of network suitable for 2G/3G/4G
Voice communication not only quickly reliably, and does not need network amendment Signalling exchange process, that is, does not need transformation existing network
Encrypt mobile phone speech communication with interior two-way bright close recognition methods and system.
The technical solution adopted by the invention is as follows: a kind of bright close recognition methods of voice communication, method particularly includes: by encryption language
The communicating pair of sound communication terminal sends key agreement data frame and identifies to other side, judges whether to recognize the key agreement
Data frame is to be identified as encrypted word, goes to encrypted word communication, into encrypted word key agreement process, otherwise switchs to unencryped word call.
Preferably, the format of the key agreement data frame are as follows: frame number ︱ negotiation data ︱ CRC check position ︱ reserved place.
Preferably, given threshold time T, communicating pair persistently sends key agreement data frame and identifies to other side, sentences
Break and whether recognize the key agreement data frame in time T, be to be identified as encrypted word, goes to encrypted word communication from present frame,
Into encrypted word key agreement process, otherwise switch to unencryped word call；The threshold time T is 1.5 seconds to 4 seconds.
Preferably, the threshold time T is 2 seconds or 3 seconds.
Preferably, the method also includes: enciphoring voice telecommunication terminal caller is unencryped word, does not do bright close identification, is write from memory
Think that unencryped word communicates.
Preferably, the specific method step of the bright close identification of enciphoring voice telecommunication terminal caller encrypted word are as follows:
A1, caller initiate calling by encrypted word, called to answer；
A2, caller every t time send a frame key agreement speech frame to called；Caller every t time receives a frame quilt simultaneously
The speech frame cried；
A3, caller determine whether the speech frame received is key agreement speech frame, is to be identified as encrypted word, into key
Negotiate process, otherwise bright close end of identification enters in next step；
A4, caller judge whether that bright close recognition time is greater than time threshold T, otherwise enter step A2, are, go to unencryped word
Call, bright close end of identification；
The specific method step of the bright close identification of the terminal called encrypted word of enciphoring voice telecommunication are as follows:
B1, it is called receive incoming call, off-hook is answered；
B2, it is called every t time and sends a frame speech frame to caller；It is called the voice that every t time receives a frame caller simultaneously
Frame；
Whether B3, the called received speech frame of judgement are key agreement speech frame, are to be identified as encrypted word, flow into negotiation
Otherwise journey, bright close end of identification enter in next step；
B4, it is called judge whether that bright close recognition time is greater than time threshold T, otherwise enter step B2, be, go to unencryped word
Identification, bright close end of identification；
Preferably, the t time is 10ms to 30ms.
Preferably, the t time is 20ms.
Preferably, whether be key agreement speech frame judgment method are as follows: judge frame head feature and verification Crc value whether
In the range of setting.
The called speech frame that the called speech frame for being sent to caller or caller receive is mute frame or prompt tone voice
Frame.
A kind of bright close identifying system of voice communication, including enciphoring voice telecommunication terminal calling terminal and enciphoring voice telecommunication terminal
Called end, which is characterized in that further include
Key agreement data frame sending module is responsible for sending the key agreement data that calling terminal and called end are sent to other side
Frame；
Key agreement data frame receipt identification module receives the speech frame of other side and identify that judging whether it is key assists
Quotient data frame；
Encrypted word key negotiation module carries out encrypted word key agreement.
Compared with prior art, the beneficial effects of the present invention are: being suitable for the circuit domain and grouping under 2G/3G/4G network
Domain voice communication not only quickly reliably, and does not need network amendment Signalling exchange process, that is, do not need to existing network into
Row transformation can be achieved with the bright close differentiation of voice communication.
Detailed description of the invention
Fig. 1 is the bright close identification process figure of caller of a wherein embodiment of the invention.
Fig. 2 is to be called bright close identification process figure in embodiment illustrated in fig. 1.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawings and embodiments, right
The present invention is further elaborated.It should be appreciated that described herein, specific examples are only used to explain the present invention, not
For limiting the present invention.
Any feature disclosed in this specification (including any accessory claim, abstract and attached drawing), except non-specifically chatting
State, can alternative features equivalent by other or with similar purpose replaced.That is, unless specifically stated, each feature
An only example in a series of equivalent or similar characteristics.
A kind of bright close recognition methods of voice communication, method particularly includes: it is sent by the communicating pair of enciphoring voice telecommunication terminal
Key agreement data frame is identified to other side, is judged whether to receive the key agreement data frame, is to be identified as encrypted word, goes to
Otherwise encrypted word communication switchs to unencryped word call into encrypted word key agreement process.
As shown in Table 1, the format of the key agreement data frame are as follows: frame number ︱ negotiation data ︱ CRC check position ︱ is reserved
Position.
In this embodiment, wherein frame number is that the serial number of current key negotiation data frame is up to since 1
M.(M is the natural number greater than 1, is determined according to the data volume that key agreement need to transmit)；Negotiation data field is the key of carrying
Negotiation data, CRC check are the completeness check to frame number and negotiation data field；Reserved field retains, agreement after doing
Extension uses.
Table one is used for the key agreement data frame of bright close identification
In this embodiment, a threshold time T is set first, and communicating pair persistently sends key agreement data frame
It is identified to other side, judges whether recognize the key agreement data frame in time T, be to be identified as encrypted word, from current
Frame goes to encrypted word communication, into encrypted word key agreement process, otherwise switchs to unencryped word call；The threshold time T is 1.5 seconds to 4
Second.Key agreement data frame is persistently sent, is further ensured that other side can receive key agreement data frame.
In a particular embodiment, the threshold time T is 2 seconds or 3 seconds, depending on time situation.
It is unencryped word the method also includes: enciphoring voice telecommunication terminal caller, although that is, to have encryption voice logical for caller
The function of letter, but encrypted word caller is not done, bright close identification is not done, is defaulted as unencryped word communication.
In this embodiment, as shown in Figure 1, the specific method of the bright close identification of enciphoring voice telecommunication terminal caller encrypted word
Step are as follows:
A1, caller initiate calling by encrypted word, are called off-hook or key or swipe and answer；
A2, caller every t time send a frame key agreement speech frame to called；Caller every t time receives a frame quilt simultaneously
The speech frame cried；
A3, caller determine whether the speech frame received is key agreement speech frame, is to be identified as encrypted word, into key
Negotiate process, otherwise bright close end of identification enters in next step；
A4, caller judge whether that bright close recognition time is greater than time threshold T, otherwise enter step A2, are, go to unencryped word
Call, bright close end of identification；
As shown in Fig. 2, the specific method step of the bright close identification of the terminal called encrypted word of enciphoring voice telecommunication are as follows:
B1, it is called receive incoming call, off-hook is answered；
B2, it is called every t time and sends a frame speech frame to caller；It is called the voice that every t time receives a frame caller simultaneously
Frame；
Whether B3, the called received speech frame of judgement are key agreement speech frame, are to be identified as encrypted word, flow into negotiation
Otherwise journey, bright close end of identification enter in next step；
B4, it is called judge whether that bright close recognition time is greater than time threshold T, otherwise enter step B2, be, go to unencryped word
Identification, bright close end of identification.
The t time is 10ms to 30ms.
The t time is 20ms.
Whether be key agreement speech frame judgment method are as follows: judge frame head feature and verification Crc value whether in setting
In range.In this embodiment, frame number feature is first determined whether, frame number should be in the conjunction of key agreement data packet frame serial number
In method value range (1 arrives M, such as aforementioned), if abandoning this bag data not in this value range；After determining that frame head is legal, meter
Calculate crc value, compare it is whether consistent with the crc value received, if unanimously, then it is assumed that the speech frame received be legal key agreement
Data packet.
Further, in this embodiment, what the called speech frame for being sent to caller or caller received is called
Speech frame be mute frame or prompt tone speech frame.Called when answering unencryped word, the bright close identification decision time is short, is called in bright close knowledge
Not Pan Ding during, send mute frame or prompt tone speech frame to caller, the calling party for doing clear call avoided to hear called key
What negotiation data directly played utter long and high-pitched sounds sound.
The coded communication terminal band Nei Mingmi recognition methods of present patent application, can solve the bright close knowledge of calling and called simultaneously
Not, process is succinctly efficient.It does not need to carry out existing net transformation, after closing of the circuit, calling and called both sides pass through the language for determining to receive
Whether there is encrypted word characteristic to carry out bright close differentiation in sound data.
Claims (8)
1. a kind of bright close recognition methods of voice communication, method particularly includes: it is sent by the communicating pair of enciphoring voice telecommunication terminal close
Key negotiation data frame is identified to other side, is judged whether to recognize the key agreement data frame, is to be identified as encrypted word, goes to
Otherwise encrypted word communication switchs to unencryped word call into encrypted word key agreement process；
Given threshold time T, communicating pair persistently send key agreement data frame and identify to other side, judge be in time T
It is no to recognize the key agreement data frame, it is to be identified as encrypted word, goes to encrypted word communication from present frame, assisted into encrypted word key
Otherwise commodity-circulate journey switchs to unencryped word call；The threshold time T is 1.5 seconds to 4 seconds；
The specific method step of the bright close identification of enciphoring voice telecommunication terminal caller encrypted word are as follows:
A1, caller initiate calling by encrypted word, called to answer；
A2, caller every t time send a frame key agreement speech frame to called；Caller every t time receives what a frame was called simultaneously
Speech frame；
A3, caller determine whether the speech frame received is key agreement speech frame, is to be identified as encrypted word, into key agreement
Otherwise process, bright close end of identification enter in next step；
A4, caller judge whether that bright close recognition time is greater than time threshold T, otherwise enter step A2, are, go to unencryped word call,
Bright close end of identification；
The specific method step of the bright close identification of the terminal called encrypted word of enciphoring voice telecommunication are as follows:
B1, it is called receive incoming call, off-hook is answered；
B2, it is called every t time and sends a frame speech frame to caller；It is called the speech frame that every t time receives a frame caller simultaneously；
B3, it is called determine whether received speech frame is key agreement speech frame, is to be identified as encrypted word, into negotiating process,
Otherwise bright close end of identification enters in next step；
B4, it is called judge whether that bright close recognition time is greater than time threshold T, otherwise enter step B2, be, go to unencryped word identification,
Bright close end of identification；
The t time is 10ms to 30ms.
2. the bright close recognition methods of voice communication according to claim 1, the format of the key agreement data frame are as follows: frame sequence
Number ︱ negotiation data ︱ CRC check position ︱ reserved place.
3. the bright close recognition methods of voice communication according to claim 1, the threshold time T is 2 seconds or 3 seconds.
4. according to claim 1 to the bright close recognition methods of voice communication described in one of 3, the method also includes: encryption voice
Communication terminal caller is unencryped word, does not do bright close identification, is defaulted as unencryped word communication.
5. the bright close recognition methods of voice communication according to claim 1, the t time is 20ms.
6. the bright close recognition methods of voice communication according to claim 1, if be the judgment method of key agreement speech frame
Are as follows: judge frame head feature and verification Crc value whether in the range of setting.
7. the bright close recognition methods of voice communication according to claim 1, the called speech frame for being sent to caller or caller are connect
The called speech frame received is mute frame or prompt tone speech frame.
8. a kind of bright close identifying system of voice communication, including enciphoring voice telecommunication terminal calling terminal and enciphoring voice telecommunication terminal quilt
Cry end, which is characterized in that further include
Key agreement data frame sending module is responsible for sending the key agreement data frame that calling terminal and called end are sent to other side；
Key agreement data frame receipt identification module, receive the speech frame of other side and carry out identification judge whether it is key agreement number
According to frame；
Encrypted word key negotiation module carries out encrypted word key agreement；
Key agreement data frame is sent by the communicating pair of enciphoring voice telecommunication terminal to identify to other side, judges whether to recognize
The key agreement data frame is to be identified as encrypted word, goes to encrypted word communication, into encrypted word key agreement process, otherwise switchs to
Unencryped word call；
Given threshold time T, communicating pair persistently send key agreement data frame and identify to other side, judge be in time T
It is no to recognize the key agreement data frame, it is to be identified as encrypted word, goes to encrypted word communication from present frame, assisted into encrypted word key
Otherwise commodity-circulate journey switchs to unencryped word call；The threshold time T is 1.5 seconds to 4 seconds；
The specific method step of the bright close identification of enciphoring voice telecommunication terminal caller encrypted word are as follows:
A1, caller initiate calling by encrypted word, called to answer；
A2, caller every t time send a frame key agreement speech frame to called；Caller every t time receives what a frame was called simultaneously
Speech frame；
A3, caller determine whether the speech frame received is key agreement speech frame, is to be identified as encrypted word, into key agreement
Otherwise process, bright close end of identification enter in next step；
A4, caller judge whether that bright close recognition time is greater than time threshold T, otherwise enter step A2, are, go to unencryped word call,
Bright close end of identification；
The specific method step of the bright close identification of the terminal called encrypted word of enciphoring voice telecommunication are as follows:
B1, it is called receive incoming call, off-hook is answered；
B2, it is called every t time and sends a frame speech frame to caller；It is called the speech frame that every t time receives a frame caller simultaneously；
B3, it is called determine whether received speech frame is key agreement speech frame, is to be identified as encrypted word, into negotiating process,
Otherwise bright close end of identification enters in next step；
B4, it is called judge whether that bright close recognition time is greater than time threshold T, otherwise enter step B2, be, go to unencryped word identification,
Bright close end of identification；
The t time is 10ms to 30ms.
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| CN101547269A (en) * | 2009-05-14 | 2009-09-30 | 杭州华三通信技术有限公司 | Calling control method and voice terminal |
| CN101764666B (en) * | 2009-12-24 | 2013-06-26 | 中国电信股份有限公司 | Speech encryption method and device and decryption method and device |
| CN101931949B (en) * | 2010-08-11 | 2014-11-05 | 中兴通讯股份有限公司 | Method and system for switching clear text communication and cipher text communication between mobile terminals |
| CN101917711B (en) * | 2010-08-25 | 2015-09-16 | 中兴通讯股份有限公司 | A kind of method of mobile communication system and voice call encryption thereof |
| US20130236015A1 (en) * | 2011-02-25 | 2013-09-12 | Gotrust Technology Inc. | Encryption/decryption system and method for a mobile device |
| CN103002406B (en) * | 2012-12-03 | 2016-06-15 | 科立讯通信股份有限公司 | A kind of voice encryption method being applied to arrowband radio digital communication system |
| CN103974241B (en) * | 2013-02-05 | 2018-01-16 | 东南大学常州研究院 | A kind of sound end-to-end encryption method towards android system mobile terminal |
| CN103458401B (en) * | 2013-09-05 | 2016-08-24 | 北京一诺正思信息技术有限公司 | A kind of voice encryption communication system and communication means |
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