CN101567885A - Voice call device as well as system and method thereof - Google Patents
Voice call device as well as system and method thereof Download PDFInfo
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- CN101567885A CN101567885A CNA2009100846118A CN200910084611A CN101567885A CN 101567885 A CN101567885 A CN 101567885A CN A2009100846118 A CNA2009100846118 A CN A2009100846118A CN 200910084611 A CN200910084611 A CN 200910084611A CN 101567885 A CN101567885 A CN 101567885A
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Abstract
The embodiment of the invention discloses a voice call device as well as a system and a method thereof, relating to a network security technique and being capable of resolving the problem that the current overwhelming majority of network voice calls are easy to be wiretapped. The voice call device comprises a converting unit, a data processing unit, a security interface unit and a communication interface unit; the converting unit is used for converting acquired analog voice signals into digital voice signals; the data processing unit is used for conducting filtering and compression coding on the digital voice signals transmitted by the converting unit; the security interface unit is used for plugging a security controller which can encrypt voice data transmitted by the data processing unit and transmit the encrypted voice data to the communication interface unit through the security interface unit; and the communication interface unit is used for transmitting the encrypted voice data transmitted by the security interface unit. The invention is applicable to the encryption of network voice call.
Description
Technical field
The present invention relates to network security technology, relate in particular to a kind of voice call device, system and method.
Background technology
Development along with network communications technology, the voice-over-net conversation is very universal in people's life, when people use the voice messaging of network terminal transmission secret, the confidentiality that how to guarantee the voice messaging transmission becomes more and more important, and the fail safe that how to improve the voice-over-net conversation just becomes the problem of a key.
Voice communication is the very strong business of a kind of real-time, and speech data is encrypted, and can guarantee the confidentiality of voice transfer.Yet most at present voice-over-net conversations are not all encrypted dialog context, thereby dialog context is easy to be eavesdropped.
Summary of the invention
The invention provides a kind of device, system and method for voice call, can solve the problem that present voice-over-net conversation is eavesdropped easily.
For achieving the above object, embodiments of the invention adopt following technical scheme:
The invention provides a kind of voice call device, comprising:
Converting unit, the analog voice signal that is used for gathering is converted to audio digital signals, and sends the audio digital signals that obtains to data processing unit;
Described data processing unit be used for the audio digital signals that described converting unit transmits is carried out filtering and compressed encoding, and the speech data that will obtain after will handling sends the safe interface unit to;
Described safe interface unit, the safety governor that is used to peg graft can be encrypted the speech data that described data processing unit transmits, and the speech data after will encrypting sends communications interface unit to by described safe interface unit;
Described communications interface unit, the speech data after the encryption that is used for described safe interface unit is transmitted sends.
The present invention also provides a kind of audio communication system, comprising:
The voice call device, the analog voice signal that is used for gathering is converted to audio digital signals, described audio digital signals is carried out filtering and compressed encoding obtains speech data, send described speech data to safety governor again and carry out encryption, at last the speech data after the described safety governor encryption is sent;
Described safety governor is plugged on the described voice call device, is used for the speech data that described voice call device transmits is encrypted.
The invention provides a kind of audio communication method, comprising:
The voice call device is converted to audio digital signals with the analog voice signal of gathering, and described audio digital signals is carried out filtering and compressed encoding obtains speech data;
Employing is plugged in safety governor on the described voice call device speech data after to filtering of described voice call device and encoding process and encrypts;
Speech data after described voice call device is encrypted described safety governor sends.
Voice call device provided by the invention, system and method; after analog voice signal is converted into audio digital signals; audio digital signals is carried out filtering and compressed encoding; and adopt safety governor that speech data is encrypted; thereby the conversation opposite end can be behind the speech data after receiving described encryption; then can access the speech data of voice transmitting terminal after being decrypted; thereby finished the encryption of voice-over-net conversation; strengthen the fail safe of voice-over-net conversation, protected individual privacy.
Description of drawings
In order to be illustrated more clearly in the embodiment of the invention or technical scheme of the prior art, to do to introduce simply to the accompanying drawing of required use in embodiment or the description of the Prior Art below, apparently, accompanying drawing in describing below only is some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is the schematic diagram of voice call device embodiment one of the present invention;
Fig. 2 is the schematic diagram of voice call device embodiment two of the present invention;
Fig. 3 is the schematic diagram of voice call device embodiment three of the present invention;
Fig. 4 is the embodiment schematic diagram of audio communication system of the present invention;
Fig. 5 is the embodiment schematic diagram of safety governor of the present invention;
Fig. 6 is the flow chart of audio communication method embodiment one of the present invention;
Fig. 7 is the flow chart of audio communication method embodiment two of the present invention.
Embodiment
Below in conjunction with accompanying drawing a kind of voice call device of the embodiment of the invention, system and method are described in detail.
Should be clear and definite, described embodiment only is the present invention's part embodiment, rather than whole embodiment.Based on the embodiment among the present invention, those of ordinary skills belong to the scope of protection of the invention not making all other embodiment that obtained under the creative work prerequisite.
The concrete entity of following embodiment voice call device can be headset.
Device embodiment one
As shown in Figure 1, a kind of voice call device of embodiments of the invention comprises: converting unit 101, data processing unit 102, safe interface unit 103 and communications interface unit 104.
Described converting unit 101, the analog voice signal that is used for gathering is converted to audio digital signals, and sends the audio digital signals that obtains to data processing unit.Usually converting unit 101 can be gathered analog voice signal by microphone.
Described data processing unit 102 be used for the audio digital signals that described converting unit 101 transmits is carried out filtering and compressed encoding, and the speech data that will obtain after will handling sends safe interface unit 103 to.
Described safe interface unit 103, be used to the safety governor of pegging graft, described safety governor is used for the speech data that described data processing unit 102 transmits is encrypted, and the speech data after will encrypting sends communications interface unit 104 to by described safe interface unit.
In an embodiment of the present invention, described safety governor can be SD (Security Digital, secure digital) card.The SD card is a kind of secure data card of based semiconductor fast-flash memory device, and compact has high memory capacity, and the rapid data transmission rate can be terminal extra memory space is provided.If common SD card, behind the embedded intelligent card chip, this SD card also can provide the smart card service, as data encryption, decipher function.
Described SD card can use the symmetric key of storage in advance that the speech data that described data processing unit 102 transmits is encrypted.In order to finish voice call, then also should use SD to stick into the row deciphering in the voice call device of receiving terminal, and the symmetric key of storage is identical with the symmetric key of transmitting terminal in advance in the SD card.Perhaps, described SD card can also adopt the PKI of PKI (Public Key Infrastructure, PKIX) system that the speech data that described data processing unit 102 transmits is encrypted; Correspondingly, the SD card of receiving terminal should use the private key that is complementary with described PKI to be decrypted.
No matter be symmetric key or the PKI and the private key of PKI system, can be to corresponding Virtual network operator application, and be stored in the SD card.In use, only needing that this SD card is plugged into described safe interface unit 103 gets final product.
Under this cipher mode,,, then can't intercept dialog context equally owing to there is not corresponding key to be decrypted even other people have obtained the speech data of encrypting.
Described communications interface unit 104, the speech data after the encryption that is used for described safe interface unit 103 is transmitted sends.Usually, described communications interface unit 104 can be USB (Universal Serial Bus, USB) interface, and connects PC (Personal Computer, personal computer) by USB interface, is sent by network by PC.
If described voice call device is a headset, described safety governor is the SD card, and the above SD card of then pegging graft on embodiment of the invention headset then can satisfy the security requirement of voice-over-net conversation.
In the embodiments of the invention voice call device; described safe interface unit 103 safety governor of can pegging graft; safety governor can be encrypted the speech data that data processing unit 102 transmits; receiving terminal only needs corresponding being decrypted to get final product; thereby realized the encryption that voice-over-net is conversed, protected user's privacy.
Device embodiment two
As shown in Figure 2, be the schematic diagram of preferred embodiment of the present invention, present embodiment is based on embodiment shown in Figure 1, and this embodiment voice call device can be included in above-mentioned SD card (or safety governor) in the voice call device, represents with 105 among Fig. 2.Further, present embodiment can also comprise process control unit 106, be used to control the treatment progress of described converting unit 101, data processing unit 102 and ciphering unit 103, receive the speech data that transmits described safe interface unit 103 and send described communications interface unit 104 to.
Owing to control by the treatment progress of process control unit 106 pairs of described converting units 101, data processing unit 102 and ciphering units 103, then can coordinate the treatment progress of each unit in the voice call device of transmitting terminal, avoid the generation problem.
Device embodiment three
On the basis of the foregoing description one or embodiment two, further, communications interface unit described in the present embodiment 104, also be used to receive the speech data after the encryption, and send described safe interface unit 103 to, described safety governor can also be decrypted the speech data after the encryption of described communications interface unit 104 transmission, and the speech data after will deciphering sends described data processing unit 102 to by described safe interface unit 103.
Described data processing unit 102, the speech data after the deciphering that also is used for described safe interface unit 103 is transmitted is decoded and filtering, and the audio digital signals that will obtain after will handling sends described converting unit 101 to.
Described converting unit 101, the audio digital signals that also is used for obtaining after decoding that described data processing unit 102 is transmitted and the filtering is converted to analog voice signal.
In the present embodiment, described converting unit 101 is also connected to earphone, and converting unit 101 output analog voice signals are offered the user by earphone.
For embodiments of the invention, can also adopt another kind of mode to realize, be that described converting unit can comprise an analog-to-digital conversion module and D/A converter module, analog-to-digital conversion module is used for analog voice signal is converted to audio digital signals, and D/A converter module is used for audio digital signals is converted to analog voice signal; Described communications interface unit also can be made up of transmission interface module and receiving interface module, speech data after the encryption that described transmission interface module is used for the safe interface unit is transmitted sends, and described receiving interface module is used for sending the speech data after the reception encryption to the safe interface unit and is decrypted.
In the present embodiment, safety governor can be the SD card.The SD card is encrypted the voice signal that collects on the one hand, again the speech data that receives is decrypted on the other hand, is based upon the voice call of encrypting on the basis thereby can finish.The SD card can adopt symmetric key to carry out encryption and decryption, can also adopt the unsymmetrical key in the PKI system to carry out encryption and decryption.In addition, should store symmetric key in the SD card in the present embodiment, perhaps stored the PKI of the encryption usefulness in the PKI system and the private key of deciphering usefulness simultaneously, if transmitting terminal adopts the PKI in the PKI system to encrypt, then receiving terminal should adopt the private key with described public key match to be decrypted.
Present embodiment can be realized the transmission of encrypted speech and the reception of encrypted speech simultaneously on a voice call device, protected user's privacy.
For present embodiment, equally also may further include a process control unit 106, be arranged between safe interface unit 103 and the described communications interface unit 104, be used to control the treatment progress of described safe interface unit 103, communications interface unit 104 and converting unit 101.Described process control unit 106 is used to receive the speech data that transmits described safe interface unit 103 and send described communications interface unit 104 to, and the speech data after the encryption that also described communications interface unit 104 is received sends described safe interface unit 103 to simultaneously.Present embodiment also can be included in safety governor 105 in the voice call device.
In above each embodiment, for daily Internet phone-calling, described voice call device can adopt headset, and described safety governor can adopt the SD card, can satisfy the safety requirements of voice-over-net conversation.
As shown in Figure 4, embodiments of the invention also provide a kind of audio communication system, comprising:
Described safety governor 42 is plugged on the described voice call device 41, is used for the speech data that described voice call device 41 transmits is encrypted.
Encrypt by the speech data that 42 pairs of described voice call devices 41 of safety governor will send, thereby only need decipher accordingly, can finish the safe transmission of voice-over-net, protected individual privacy in the conversation opposite end.
In preferred embodiment of the present invention, on the basis of such scheme, speech data after the encryption that described voice call device 41 also is used for receiving sends described safety governor 42 to and is decrypted processing, with the speech data after described safety governor 42 decryption processing decode and filtering obtain audio digital signals, described audio digital signals is carried out digital-to-analogue conversion obtains analog voice signal;
Described safety governor 42, the speech data after the encryption that also is used for described voice call device 41 is received is decrypted.
In an embodiment of the present invention, described safety governor can be the SD card.As shown in Figure 5, described safety governor 42 can comprise:
Encrypting module 421 is used to use the symmetric key of storage in advance or the PKI of PKI system that the speech data that described voice call device 41 transmits is encrypted;
Speech data after the encryption that deciphering module 422, the private key that is used to use in advance the symmetric key of storage or PKI system receive described voice call device 41 is decrypted.Wherein, the PKI of the PKI system of using on the private key of described PKI system and the described encrypting module 421 is complementary.
For embodiments of the invention, described voice call device 41 can adopt headset, and described headset cooperates with the SD card realizes audio communication system, thereby has satisfied the safety requirements of voice-over-net conversation.
The embodiments of the invention audio communication system; comprise voice call device and safety governor; safety governor can be encrypted the speech data that the voice call device will send; and can the speech data after the encryption of voice call device reception be decrypted; thereby can realize the encryption of voice call; avoid dialog context to be eavesdropped, protected individual privacy.For embodiments of the invention, even there are other people to steal the speech data of both call sides, but there is not corresponding password to be decrypted, also can't obtain dialog context.
Embodiments of the invention also provide a kind of audio communication method, can solve the problem that the voice-over-net conversation is eavesdropped easily.
Method embodiment one
As shown in Figure 6, a kind of audio communication method of embodiments of the invention comprises:
S601, voice call device are converted to audio digital signals with the analog voice signal of gathering, and described audio digital signals is carried out filtering and compressed encoding obtains speech data.
S602, the speech data after adopting the safety governor be plugged on the described voice call device to filtering of described voice call device and encoding process are encrypted.
This step is specifically as follows: the speech data of the PKI that uses the symmetric key be stored in advance in the described safety governor or PKI system after to filtering of described voice call device and encoding process encrypted.This step can be with reference to above-mentioned voice call device embodiment one, two or three described carrying out.Above-described safety governor can be the SD card, and described voice call device can be headset.
Speech data after S603, described voice call device are encrypted described safety governor sends.
By safety governor the voice of transmitting terminal are encrypted, thereby only need be deciphered accordingly, can finish the safe transmission of voice-over-net, protected individual privacy in the conversation opposite end.
Method embodiment two
As shown in Figure 7, on the basis of the foregoing description, a kind of audio communication method of embodiments of the invention can also may further comprise the steps:
Speech data after the encryption that S701, described voice call device reception conversation opposite end send.
The safety governor that S702, employing are plugged on the described voice call device is decrypted the speech data that described voice call device receives.
This step is specifically as follows: use the symmetric key be stored in advance in the described safety governor or the private key of PKI system that the data that described voice call device receives are decrypted, the PKI of encrypting use in the speech data of wherein said private key and described reception is complementary.
The speech data that S703, described voice call device obtain after described safety governor is deciphered is decoded and filtering obtains audio digital signals, and described audio digital signals is carried out digital-to-analogue conversion, obtains analog voice signal.
Above-described safety governor can adopt the SD card, and described voice call device can adopt headset.
Described step of Fig. 7 and step shown in Figure 6 can be carried out in actual communication process simultaneously, for the caller, should be to the speech data after send to encrypt the conversation opposite end, also to receive the speech data after the encryption that the conversation opposite end sends simultaneously and be decrypted, thereby finish conversation.
Audio communication method provided by the invention, adopt safety governor that speech data is encrypted at transmitting terminal, adopt safety governor that the speech data that receives is decrypted at receiving terminal, thereby realized the deciphering of voice-over-net conversation, strengthened the fail safe of voice-over-net conversation.Even there are other people in communication process, to obtain the speech data of both call sides, but do not have corresponding password to be decrypted, can't obtain dialog context yet.
One of ordinary skill in the art will appreciate that all or part of flow process that realizes in the foregoing description method, be to instruct relevant hardware to finish by computer program, described program can be stored in the computer read/write memory medium, this program can comprise the flow process as the embodiment of above-mentioned each side method when carrying out.Wherein, described storage medium can be magnetic disc, CD, read-only storage memory body (Read-Only Memory, ROM) or at random store memory body (Random Access Memory, RAM) etc.
The above; only be the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, anyly is familiar with those skilled in the art in the technical scope that the present invention discloses; the variation that can expect easily or replacement all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection range of claim.
Claims (15)
1, a kind of voice call device is characterized in that, comprising:
Converting unit, the analog voice signal that is used for gathering is converted to audio digital signals, and sends the audio digital signals that obtains to data processing unit;
Described data processing unit be used for the audio digital signals that described converting unit transmits is carried out filtering and compressed encoding, and the speech data that will obtain after will handling sends the safe interface unit to;
Described safe interface unit is used to the safety governor of pegging graft, and described safety governor is used for the speech data that described data processing unit transmits is encrypted, and the speech data after will encrypting sends communications interface unit to by described safe interface unit;
Described communications interface unit, the speech data after the encryption that is used for described safe interface unit is transmitted sends.
2, device according to claim 1 is characterized in that,
Described communications interface unit, also be used to receive the speech data after the encryption, and send described safe interface unit to, speech data after the encryption that described safety governor also is used for described communications interface unit is transmitted is decrypted, and the speech data after will deciphering sends described data processing unit to by described safe interface unit;
Described data processing unit, the speech data after the deciphering that also is used for described safe interface unit is transmitted is decoded and filtering, and the audio digital signals that will obtain after will handling sends described converting unit to;
Described converting unit, the audio digital signals that also is used for obtaining after decoding that described data processing unit is transmitted and the filtering is converted to analog voice signal.
3, device according to claim 2 is characterized in that, described safety governor uses the symmetric key of storage in advance or the PKI of PKIX PKI system that the speech data that described data processing unit transmits is encrypted; Or use the symmetric key of storage in advance or the private key of PKIX PKI system that the speech data that described communications interface unit transmits is decrypted.
4, according to claim 2 or 3 described devices, it is characterized in that, described device further comprises: the process control unit, be used to control the treatment progress of described converting unit, data processing unit and safe interface unit, receive the speech data that transmits described safe interface unit and send described communications interface unit to, or receive the speech data after the encryption that described communications interface unit receives and send described safe interface unit to.
According to claim 1 or 2 or 3 described devices, it is characterized in that 5, described safety governor is a safe digital card.
According to claim 1 or 2 or 3 described devices, it is characterized in that 6, described voice call device is a headset.
7, a kind of audio communication system is characterized in that, comprising:
The voice call device, the analog voice signal that is used for gathering is converted to audio digital signals, described audio digital signals is carried out filtering and compressed encoding obtains speech data, send described speech data to safety governor again and carry out encryption, at last the speech data after the described safety governor encryption is sent;
Described safety governor is plugged on the described voice call device, is used for the speech data that described voice call device transmits is encrypted.
8, audio communication system according to claim 7 is characterized in that,
Speech data after the encryption that described voice call device also is used for receiving sends described safety governor to and is decrypted processing, speech data after the described safety governor decryption processing is decoded and filtering obtains audio digital signals, and described audio digital signals is carried out digital-to-analogue conversion obtain analog voice signal;
Described safety governor, the speech data after the encryption that also is used for described voice call device is received is decrypted.
9, audio communication system according to claim 8 is characterized in that, described safety governor comprises:
Encrypting module is used to use the symmetric key of storage in advance or the PKI of PKIX PKI system that the speech data that described voice call device transmits is encrypted;
Speech data after the encryption that deciphering module, the private key that is used to use in advance the symmetric key of storage or PKIX PKI system receive described voice call device is decrypted.
According to claim 7 or 8 or 9 described audio communication systems, it is characterized in that 10, described safety governor is a safe digital card.
According to claim 7 or 8 or 9 described audio communication systems, it is characterized in that 11, described voice call device is a headset.
12, a kind of audio communication method is characterized in that, comprising:
The voice call device is converted to audio digital signals with the analog voice signal of gathering, and described audio digital signals is carried out filtering and compressed encoding obtains speech data;
Employing is plugged in safety governor on the described voice call device speech data after to filtering of described voice call device and encoding process and encrypts;
Speech data after described voice call device is encrypted described safety governor sends.
13, method according to claim 12 is characterized in that, described method further comprises:
Speech data after the encryption that described voice call device reception conversation opposite end sends;
The safety governor that employing is plugged on the described voice call device is decrypted the speech data that described voice call device receives;
The speech data that described voice call device obtains after described safety governor is deciphered is decoded and filtering obtains audio digital signals, and described audio digital signals is carried out digital-to-analogue conversion, obtains analog voice signal.
14, method according to claim 13, it is characterized in that described employing is plugged in safety governor on the described voice call device speech data after to filtering of described voice call device and encoding process and encrypts and be specially: the speech data of the PKI that uses the symmetric key that is stored in advance in the described safety governor or PKIX PKI system after to described filtering and encoding process encrypted; Perhaps
Described employing is plugged in speech data that the safety governor on the described voice call device receives described voice call device and is decrypted and is specially: the speech data of the private key that uses the symmetric key that is stored in advance in the described safety governor or PKIX PKI system after to described encryption is decrypted, and the PKI of encrypting use in the speech data of wherein said private key and described reception is complementary.
According to claim 12 or 13 or 14 described methods, it is characterized in that 15, described safety governor is a safe digital card, described voice call device is a headset.
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| CNA2009100846118A CN101567885A (en) | 2009-05-19 | 2009-05-19 | Voice call device as well as system and method thereof |
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| CNA2009100846118A CN101567885A (en) | 2009-05-19 | 2009-05-19 | Voice call device as well as system and method thereof |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843677A (en) * | 2012-08-14 | 2012-12-26 | 福建伊时代信息科技股份有限公司 | Voice communication method, device and system |
| CN103401675A (en) * | 2013-07-15 | 2013-11-20 | 江苏智联天地科技有限公司 | Paired earphone end-to-end communication scrambling-descrambling method, device and scrambling-descrambling earphone |
| CN104184873A (en) * | 2013-05-27 | 2014-12-03 | 韩国电子通信研究院 | Information security attachment device for voice communication and information security method |
| CN104935496A (en) * | 2014-03-19 | 2015-09-23 | 腾讯科技（深圳）有限公司 | Instant messaging method, system, device and instant messaging terminal |
| CN105357226A (en) * | 2015-12-16 | 2016-02-24 | 深圳市九鼎安华科技有限公司 | Encryption communication method based on VOIP (voice over internet phone) communication |
| CN105407480A (en) * | 2015-08-27 | 2016-03-16 | 电子科技大学 | Encryption method of encryption headset and realization device |
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2009
- 2009-05-19 CN CNA2009100846118A patent/CN101567885A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102843677A (en) * | 2012-08-14 | 2012-12-26 | 福建伊时代信息科技股份有限公司 | Voice communication method, device and system |
| CN104184873A (en) * | 2013-05-27 | 2014-12-03 | 韩国电子通信研究院 | Information security attachment device for voice communication and information security method |
| US9467428B2 (en) | 2013-05-27 | 2016-10-11 | Electronics And Telecommunications Research Institute | Information security attachment device for voice communication and information security method for voice communication using the same |
| CN103401675A (en) * | 2013-07-15 | 2013-11-20 | 江苏智联天地科技有限公司 | Paired earphone end-to-end communication scrambling-descrambling method, device and scrambling-descrambling earphone |
| CN104935496A (en) * | 2014-03-19 | 2015-09-23 | 腾讯科技（深圳）有限公司 | Instant messaging method, system, device and instant messaging terminal |
| CN105407480A (en) * | 2015-08-27 | 2016-03-16 | 电子科技大学 | Encryption method of encryption headset and realization device |
| CN105407480B (en) * | 2015-08-27 | 2018-10-30 | 电子科技大学 | A kind of encryption method of encryption headset |
| CN105357226A (en) * | 2015-12-16 | 2016-02-24 | 深圳市九鼎安华科技有限公司 | Encryption communication method based on VOIP (voice over internet phone) communication |
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Application publication date: 20091028 |