[go: up one dir, main page]

CN100479568C - Implementation scheme for secrecy phone of the smart mobile terminal - Google Patents

Implementation scheme for secrecy phone of the smart mobile terminal Download PDF

Info

Publication number
CN100479568C
CN100479568C CNB2006101696006A CN200610169600A CN100479568C CN 100479568 C CN100479568 C CN 100479568C CN B2006101696006 A CNB2006101696006 A CN B2006101696006A CN 200610169600 A CN200610169600 A CN 200610169600A CN 100479568 C CN100479568 C CN 100479568C
Authority
CN
China
Prior art keywords
mobile terminal
data
party
intelligent mobile
communication
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CNB2006101696006A
Other languages
Chinese (zh)
Other versions
CN101009886A (en
Inventor
袁开国
张茹
钮心忻
杨义先
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beijing University of Posts and Telecommunications
Original Assignee
Beijing University of Posts and Telecommunications
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beijing University of Posts and Telecommunications filed Critical Beijing University of Posts and Telecommunications
Priority to CNB2006101696006A priority Critical patent/CN100479568C/en
Publication of CN101009886A publication Critical patent/CN101009886A/en
Application granted granted Critical
Publication of CN100479568C publication Critical patent/CN100479568C/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Mobile Radio Communication Systems (AREA)

Abstract

本发明公开了一种智能移动终端上的保密电话实现方案。该方案通过短信获取对方的IP地址，然后进行身份认证，进入语音通信状态后，从麦克读取语音信号，对之进行压缩编码，加密，打包后以IP数据的方式发送给对方，对方接收到语音数据包后，对之进行解密，解码，然后将数据写到扬声器，从而完成语音的实时保密传输，实现保密电话功能。该方案与传统的做法不同，它不对移动终端的硬件做任何改动，也不用添加任何第三方硬件，只要将实现该方案的软件安装在用户的智能移动终端上，就可以与拥有同样智能移动终端的用户进行保密通话，其安全性好，实现容易，成本低廉，兼容性好，具有很好的实用价值。

Figure 200610169600

The invention discloses a scheme for implementing a secure phone on an intelligent mobile terminal. This solution obtains the IP address of the other party through SMS, and then performs identity authentication. After entering the voice communication state, it reads the voice signal from the microphone, compresses and encodes it, encrypts it, and sends it to the other party in the form of IP data after packaging, and the other party receives it. After the voice data packet, it is decrypted, decoded, and then the data is written to the speaker, so as to complete the real-time confidential transmission of the voice and realize the confidential telephone function. This solution is different from the traditional approach. It does not make any changes to the hardware of the mobile terminal, nor does it need to add any third-party hardware. As long as the software for implementing this solution is installed on the user's smart mobile terminal, it can be used with the same smart mobile terminal. It is safe, easy to realize, low in cost, good in compatibility, and has good practical value.

Figure 200610169600

Description

Code phone implementation on the intelligent mobile terminal
Technical field
The present invention relates to moving communicating field, specifically, the present invention has provided a kind of scheme that realizes code phone on intelligent terminal.
Background technology
Developing rapidly of mobile communication pushed people's life to convenience with quick.Yet our free communication is to realize in the communication space of an opening.In this space, except the both sides of communication, such as being not intended to the person, the assailant, third parties such as Virtual network operator are the obtaining communication content equally quickly and easily---and mobile communication has brought convenience with quick to us, but our privacy is made public.
Security work in the tradition mobile communication mainly is divided into following three classes:
1) Virtual network operator employed data encryption in communication protocol.Because the communication protocol of mobile communications network and the opening of communication space make that the fail safe of this mode is not fine;
2) data encryption in device design, carried out of portable terminal manufacturer.The mobile communication terminal manufacturer has carried out data encryption by the mode that hardware is changed, consider from the angle of fail safe, this truly had very big improvement, but it's a pity, this mode is also infeasible on ordinary terminal, can only use special equipment, and cost is higher relatively.
3) third party developer is by bluetooth, and connected modes such as USB are placed on data encryption work on the own hardware module of developing and realize, thereby finish the code phone function.This mode requires the user to be equipped with a third party device, but also requires at any time band at one's side, is not fine on still being convenience from cost.
Mobile communication develops into today, and is more and more universal.In recent years, current collection words, data processing, multi-functional portable terminal such as amusement has been walked close to domestic consumer gradually, Here it is intelligent mobile terminal, its typical case's representative has intelligent intelligent mobile terminal, PDA etc.Intelligent mobile terminal generally possesses recording, playback, video recording, video reproduction, software and hardware conditions such as radio communication also have one group of processor (generally be responsible for the DSP of data processing by one or two, and a high-end ARM who is responsible for control forming) that disposal ability is quite powerful simultaneously, can be competent at voice fully and handle in real time, work such as real-time encrypted grade.
2.5 generation techniques of mobile communications network (GPRS and CDMA) have obtained using widely, its main feature is embodied in the data service---and provide end to end, wireless IP or wirelessly X.25 connect, have real-time online, charge according to quantity, quick login, high-speed transfer, advantage such as switching freely.The speed theoretical peak of GPRS is up to 171.2Kbps, usually also can reach 30-50Kbps under the network condition, and the theoretical speed of CDMA can reach 153.6kbps, measured data speed average out to 80kbps, and the speech code stream of this feasible compression transmits by IP and has very strong feasibility.
Summary of the invention
Based on these, the present invention proposes a kind of code phone scheme that on intelligent mobile terminal, realizes, this scheme is not done any change to the hardware of portable terminal, need not add any third party's hardware yet, is installed on user's the intelligent mobile terminal as long as will realize the software of this scheme, just can carry out secret telephony with the user who has same intelligent mobile terminal, its fail safe is good, realizes easily, and is with low cost, compatible good, have good practical value!
The scheme that on intelligent mobile terminal, realizes code phone that the present invention proposes, utilize the programmable functions of intelligent mobile terminal and powerful processing capacity, obtain the other side's IP address by note, then user both sides are carried out authentication, after entering the voice communication state, read voice signal from Mike, it is carried out compressed encoding, encrypt, pass through mobile communication data business after the packing, form with the IP data sends to the other side, after the other side receives VoP, it is decrypted, decoding, then data are write loud speaker, thereby finish the transmission of maintaining secrecy in real time of voice, realize the code phone function.
More clear for the description that makes scheme, scheme has been constructed following secure voice communications agreement:
1) agreement denotational description:
The PKI identity authorization system that is adopted in the scheme is (M, C, K Rc, K Pc, E Pc, D Pc), common key cryptosystem is (M, C, K r, K p, E p, D p), symmetric cryptosystem is (M, C, K s, E s, D s), data compression system is (M, C, E d, D d).
A, B represent legal secure communication promoter and recipient respectively; T a, T bThe intelligent mobile terminal of representing A and B respectively; IP a, IP bThe IP information of representing A and B respectively; I a, I aThe identity information of representing A and B respectively; K Pa, K Pb, K PcRepresent A respectively, the PKI of B and the CA of certification authority; K Ra, K Rb, K RcRepresent A respectively, the private key of B and CA; C a, C bRepresent that respectively CA is presented to the certificate of A and B, wherein C a=I a+ E Pc(K Rc, I a)+E Pc(K Rc, K Pa), C b=I b+ E Pc(K Rc, I b)+E Pc(K Rc, K Pb); R A0And R B0Represent the checking random number that A and B produce respectively; K sCommunication symmetric key for scheme; S represents data message;
2) protocol description:
In order to distinguish order bag and general data bag in communication process, scheme has been constructed packet structure shown in Figure 1 (not comprising the Setup bag of initiating communication).First byte of packet is packet packet header, and in order to the correlation properties of expression current data packet, a plurality of bytes of back are the data content of current data packet.
The structure in packet packet header as shown in Figure 2.Packet packet header is with a byte representation, the highest order of this byte is represented the character of current bag: current data packet is order Bao Shiwei 0, current data packet is general data Bao Shiwei 1, the data length (not comprising a byte) of low seven bit representation current data packet, therefore, each packet is the longest to be 129 bytes, and data content is the longest to be 128 bytes.
Setup bag is different with other packet, its form as shown in Figure 3, first byte of bag be a common intelligent mobile terminal in note the character that can not import, the back connects the data content of fixed length.
The communication process of scheme as shown in Figure 4, by authentication, part such as three of key management and voice communications etc. is formed, and specifically describes as follows:
A, authentication agreement:
In order to guarantee to give validated user, the identification authentication mode that scheme has adopted password to combine with certificate the content delivery of secure communication.Simultaneously, for the resistance of raising scheme to Replay Attack, scheme has also adopted random two-way number symmetry authentication policy.Specifically describe as follows:
A) A opens code phone program, T aRequire input code phone password.If password is correct, then to T bTransmission is by IP aAnd C aThe Setup bag that constitutes is initiated communication;
B) T bChecking C aLegitimacy:
I′ a＝D pc(K pc，E pc(K rc，I a))
If I ' a=I a, C then aLegal.Then from C aThe middle K that extracts Pa:
K pa＝D pc(K pc，E pc(K rc，K pa))
This moment T bRequire B input code phone password;
C) if the password of B input is correct, T bGenerate a checking random number R B0, in order to checking T aLegitimacy, and use K PaIt is encrypted:
R b1＝E p(K pa，R b0)
Then with R B1, IP bAnd C bReturn to T together a
D) T aChecking C bLegitimacy:
I′ b＝D pc(K pc，E pc(K rc，I b))
If I ' b=I b, C then bLegal.Then from C bThe middle K that extracts Pb:
K pb＝D pc(K pc，E pc(K rc，K pb))
And extraction T bThe checking random number R B2:
R b2＝D p(K ra，R b1)
Generate a checking random number R simultaneously A0, in order to checking T bLegitimacy, and use K PbTo R A0And R B2Encrypt:
R a1＝E p(K pb，R a0)
R b3＝E p(K pb，R b2)
Then with R A1And R B3Send to T together b
E) T bExtract the checking random number R B4:
R b4＝D p(K rb，R b3)＝D p(K rb，E p(K pb，D p(K ra，E p(K pa，R b0))))
And if only if K Pa, K Ra, K Pb, K RbWhen all legal, R B4=R B0Set up, so far T bTo T aLegitimate verification finish.Extract T then aThe checking random number R A2:
R a2＝D p(K rb，R a1)
Use K PaIt is encrypted:
R a3＝E p(K pa，R a2)
And with R A3Be returned to T a, T bEnter the key management state.
F) T aThe checking random number R A4:
R a4＝D p(K ra，R a3)＝D p(K ra，E p(K pa，D p(K rb，E p(K pb，R a0))))
And if only if K Pa, K Ra, K Pb, K RbWhen all legal, R A4=R A0Set up, so far T aTo T bLegitimate verification finish T aEnter the key management state.
In the authentication process,, all will send " authentication failure " information to the other side, and withdraw from the code phone program if there is any one authentication link to obtain the result who negates.
B, IKMP:
Owing to consider that (key of public key algorithm is not to changing for a long time usually for the arithmetic speed of public key encryption algorithm and the right fail safe of key thereof, if come big data on flows such as voice or image is encrypted with it, can provide a very big ciphertext sample to the assailant, right fail safe is a very big hidden danger to the public key algorithm key for this), scheme has adopted the symmetric cryptographic algorithm of the key of once communicating by letter to come data are encrypted.This just requires the code phone program to have key management functions, comprises two subfunctions of cipher key change and cipher key destruction, specifically describes as follows:
A) T aProduce the key of a plurality of symmetric cryptographic algorithms at random, and therefrom select the most healthy and the strongest a symmetric key K as this communication sUse K then PbIt is encrypted:
K′ s＝E p(K pb，K s)
With K ' sPass to T b, and enter the data-voice communications status.
B) T bTo K ' sBe decrypted:
K″ s＝D p(K rb，K′ s)＝D p(K rb，E p(K pb，K s))＝K s
Thereby obtain K s, and and T aInformation that feedback " is obtained the key success " enters the voice communication state then.
C) work as T aAnd T bAfter both sides had confirmed this end of conversation, both sides carried out cipher key destruction, did not stay any information relevant with this communication key.Withdraw from the code phone program then.
C, secure voice communication agreement:
After authentication and the cipher key change, the voice communication stage is used for guaranteeing the safe and effective transmission of speech data, and the status of communicating pair is equity fully, specifically describes as follows:
A) both sides have K sAfterwards, T aObtain speech data S from upper level applications, data compressed with compression algorithm:
S c＝E d(S)
Use K sTo S cCarry out symmetric cryptography:
S′ c＝E s(K s，S c)
Then with S ' cBe transferred to T b
B) T bTermination is received T aAfter the data that transmit, use K sIt is carried out the symmetry deciphering:
S″ c＝D s(K s，S′ c)＝D s(K s，E s(K s，S c))＝S c
Speech data S after promptly obtaining compressing c, with decompression algorithm data are carried out decompress(ion) again:
S＝D d(S c)
Thereby obtain speech data S, offer the code phone program;
C) T aEnd also can be by same mode to T bTransmitting audio data, thus the code phone function finished.
The content realizing the scheme of code phone on the intelligent mobile terminal that the present invention proposes is: realize and move a software on intelligent mobile terminal, this software is realized the identification and the authentication of communicating pair by the authentication agreement in the secure voice communications agreement, realize both sides' key agreement and cipher key change by the IKMP in the secure voice communications agreement, realize the safe and secret transmission of both sides' voice by the secure voice communication agreement in the secure voice communications agreement, thereby realize whole code phone function.
Description of drawings
Fig. 1 is a packet structure of the present invention.
Fig. 2 is a packet head-coating structure of the present invention.
Fig. 3 is a Setup pack arrangement of the present invention.
Fig. 4 is a communication flow diagram of the present invention.
Embodiment
Because the IP of intelligent mobile terminal is by the network dynamic assignment in terminal entering network, the communication initiator only knows the other side's international mobile subscriber identity IMSI, and do not know its IP address, and the speech data in the scheme is to transmit in the mode of IP bag by GPRS, and this just requires scheme to have the function of obtaining the other side IP.In scheme, initiate the character that the Setup bag of communication can not import in note for the general intelligence portable terminal ' 0x1B ', in order to distinguishing Sctup bag note and normal short message, the data of back are the IP address ips of originating end of communicating by letter aIn communication process, the Setup bag is realized by note: a note trace routine is installed in the intelligent mobile terminal at two ends, when intelligent mobile terminal receives new note, new message is detected, if current note is a normal short message, then do not operate; If Setup bag note, then the short message reading content sends the IP phone program to, then note is deleted.
Consider that intelligent movable portable terminal disposal ability is limited, adopted algorithm complex relatively low in the scheme, code check be 8kbps G.729A as voice compression algorithm, and it has been carried out the time-optimized of height, satisfying the real-time requirement of compress speech.In addition, public key algorithm and certification authentication algorithm all are RSA, and symmetric cryptographic algorithm is 3DES.The specific implementation step is as follows:
1) the A end subscriber is at T aOn open the code phone program, the input user password, enter the code phone program;
2) A is at T aLast input T bInternational mobile subscriber identity IMSI, the Setup bag that will contain this machine IP and certificate sends to B end intelligent mobile terminal as note, initiates communication;
3) T bThe note trace routine detect the Setup bag that A end sends after, read the Setup bag, after certificate is wherein verified, take out the PKI of A.Then will be with the checking random number behind the rsa encryption, IP of oneself and certificate send to T a
4) T aCertificate to B authenticates, and the organic number of checking of deciphering B generates own checking random number then, with the two with rsa encryption after passback to T b
5) T bThe checking random number that checking is beamed back, and after the checking random number deciphering with A, return to T with rsa encryption again a
6) T aThe checking random number beamed back of checking generates communication then and uses symmetric key, and sends to T after with RSA it being encrypted b, enable T simultaneously aThe ring-back of self, the other side's off-hook is waited in expression;
7) T bAfter receiving the key information that A sends, it is decrypted, enables T simultaneously with RSA bThe ring of self." obtain the key success " to A end feedback behind the B end off-hook, enter the voice communication state simultaneously;
8) T aReceive T bAfter " obtaining the key success " information of sending, close ring-back, enter the voice communication state;
9) after the either party enters the voice communication state, read in voice messaging from Mike, adopt G.729A that data compression algorithm compresses it, with 3DES packed data is encrypted, the mode by the IP data sends to the other side then; After the other side receives data, with 3DES it is decrypted earlier, uses data decompression algorithm G.729A that it is carried out decompress(ion) again, deliver to loud speaker then;
10) in this process,, then do not enter all packets that a side of voice communication state receives and all will be dropped if wherein the either party does not also enter the voice communication state.Up to both sides' off-hook all, just enter normal voice communication course.
11) if wherein side's on-hook perhaps determines to stop communication, then send an End bag to the other side, the other side also returns an End bag, finishes whole communication process.Right latter two intelligent mobile communication terminal all carries out symmetric key to be destroyed, to guarantee the safety of key.

Claims (7)

1、智能移动终端上的保密电话实现方法，充分利用智能移动终端的可编程功能、强大的处理功能、数据业务功能和IP数据通信功能，通过运行在智能移动终端上的保密电话软件来实现，该软件实现了保密电话通信协议中的身份认证协议、密钥管理协议和保密电话通信协议，其工作流程如下所示：1. The realization method of the secure telephone on the intelligent mobile terminal, fully utilizes the programmable function, the powerful processing function, the data service function and the IP data communication function of the intelligent mobile terminal, and realizes by running the secure telephone software on the intelligent mobile terminal, The software implements the identity authentication protocol, key management protocol and secure telephone communication protocol in the secure telephone communication protocol, and its workflow is as follows: 1)A端用户在其智能移动终端Ta上打开保密电话软件，输入用户口令，进入保密电话软件，输入B端用户的智能移动终端Tb的国际移动用户识别码IMSI，将本机IP、包含有A的公钥和身份信息的数字证书作为Setup包以短信的形式发送给Tb，发起通信；1) The A-end user opens the secure phone software on his smart mobile terminal T a , enters the user password, enters the secure phone software, inputs the International Mobile Subscriber Identity code IMSI of the smart mobile terminal T b of the B-side user, and transfers the local IP, The digital certificate containing A's public key and identity information is sent to T b as a Setup package in the form of SMS to initiate communication; 2)Tb的短信检测软件检测到A端发来的Setup包后，读取Setup包，对其中的证书进行验证后，取出A的公钥；然后将用RSA加密后的验证随机数，自己的IP、包含有B的公钥和身份信息的证书发送给Ta；2) After the SMS detection software of T b detects the Setup package sent by A, it reads the Setup package, verifies the certificate in it, and takes out the public key of A; The IP, the certificate containing B's public key and identity information are sent to T a ; 3)Ta对B的证书进行认证，解密B的验证随机数，然后生成自己的验证随机数，再将解密后的B的验证随机数和自己生成的验证随机数用RSA加密后回传给Tb；3) T a authenticates B's certificate, decrypts B's verification random number, generates its own verification random number, and then encrypts the decrypted B's verification random number and the self-generated verification random number with RSA and sends it back to T b ; 4)Tb验证经Ta发回的B的验证随机数，并将A的验证随机数解密后，用RSA加密后回传给Ta；4) T b verifies B's verification random number sent back by T a , decrypts A's verification random number, encrypts it with RSA, and sends it back to T a ; 5)Ta验证Tb发回的A的验证随机数，然后生成通信用对称密钥，并用RSA对其进行加密后发送给Tb，同时使能Ta自身的回铃，表示等待对方摘机；5) T a verifies the verification random number of A sent back by T b , then generates a symmetric key for communication, encrypts it with RSA and sends it to T b , and at the same time enables T a’s own ringback, indicating that it is waiting for the other party to pick up the key. machine; 6)Tb收到A发来的密钥信息后，用RSA对之进行解密，同时使能Tb自身的振铃；B端摘机后向A端反馈“获取密钥成功”，同时进入语音通信状态；6) After T b receives the key information sent by A, it decrypts it with RSA, and at the same time enables the ringing of T b itself; after the B end picks up the phone, it feeds back "key acquisition success" to the A end, and enters Voice communication status; 7)Ta收到Tb发来的“获取密钥成功”信息后，关闭回铃，进入语音通信状态；7) T a turns off the ringback and enters the voice communication state after receiving the message of "acquiring the key successfully" sent by T b ; 8)任一方进入语音通信状态后，从麦克读入语音信息，采用G.729A数据压缩算法对之进行压缩，用3DES对压缩数据进行加密，然后通过IP数据的方式发送给对方；对方接收到数据后，先用3DES对之进行解密，再用G.729A的数据解压算法对之进行解压，然后送到扬声器；8) After any party enters the voice communication state, read the voice information from the microphone, compress it with the G.729A data compression algorithm, encrypt the compressed data with 3DES, and then send it to the other party through IP data; the other party receives After the data, first use 3DES to decrypt it, then use the G.729A data decompression algorithm to decompress it, and then send it to the speaker; 9)在此过程中，如果其中任一方还没有进入语音通信状态，则没有进入语音通信状态的一方接收到的所有数据包都将被丢弃；直到双方都已经摘机，才进入正常的语音通信过程；9) During this process, if any of the parties has not entered the voice communication state, all data packets received by the party that has not entered the voice communication state will be discarded; until both parties have off-hook, they will enter normal voice communication process; 10)如果其中一方挂机，或者决定停止通信，则向对方发送一个End包，对方也返回一个End包，结束整个通信过程；然后两个智能移动通信终端都进行对称密钥销毁，以保证密钥的安全。10) If one of the parties hangs up, or decides to stop the communication, an End packet is sent to the other party, and the other party also returns an End packet to end the entire communication process; then both intelligent mobile communication terminals destroy the symmetric key to ensure that the key safety. 2、根据权利要求1所述的智能移动终端上的保密电话实现方法，其特征是：利用智能移动终端的可编程功能和强大的处理功能，实现语音数据的压缩与解压缩，加密与解密，再通过其数据业务，以IP数据的方式，完成语音的保密实时传输，实现移动保密电话功能。2. The method for implementing a secure phone on an intelligent mobile terminal according to claim 1, characterized in that: utilizing the programmable functions and powerful processing functions of the intelligent mobile terminal to realize compression and decompression, encryption and decryption of voice data, Then through its data service, complete the confidential real-time transmission of voice in the form of IP data, and realize the function of mobile confidential telephone. 3、根据权利要求1所述的智能移动终端上的保密电话实现方法，其特征是：该方法由运行在智能移动终端上的软件完成，不对智能移动终端的硬件作改动。3. The method for implementing a secure phone on an intelligent mobile terminal according to claim 1, characterized in that: the method is completed by software running on the intelligent mobile terminal without changing the hardware of the intelligent mobile terminal. 4、根据权利要求1所述的智能移动终端上的保密电话实现方法，其特征是：设计了一种供本方法专用的保密电话通信协议。4. The method for implementing a secure telephone on an intelligent mobile terminal according to claim 1, characterized in that: a dedicated secure telephone communication protocol for the method is designed. 5、根据权利要求1所述的智能移动终端上的保密电话实现方法，其特征是：构造了一种专用的数据包，数据包包头和Setup包格式。5. The method for implementing a secure phone on an intelligent mobile terminal according to claim 1, characterized in that: a dedicated data packet, data packet header and Setup packet format are constructed. 6、根据权利要求1所述的智能移动终端上的保密电话实现方法，其特征是：智能移动终端通过短信获取对方的IP地址。6. The method for implementing a secure phone call on an intelligent mobile terminal according to claim 1, characterized in that: the intelligent mobile terminal obtains the other party's IP address through a short message. 7、根据权利要求1所述的智能移动终端上的保密电话实现方法，其特征是：智能移动终端上的保密电话不用借助第三方通信专用服务器，直接实现端到端的IP语音通信。7. The method for realizing the secure phone on the smart mobile terminal according to claim 1, characterized in that: the secure phone on the smart mobile terminal directly realizes end-to-end IP voice communication without resorting to a third-party dedicated communication server.
CNB2006101696006A 2006-12-25 2006-12-25 Implementation scheme for secrecy phone of the smart mobile terminal Expired - Fee Related CN100479568C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNB2006101696006A CN100479568C (en) 2006-12-25 2006-12-25 Implementation scheme for secrecy phone of the smart mobile terminal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNB2006101696006A CN100479568C (en) 2006-12-25 2006-12-25 Implementation scheme for secrecy phone of the smart mobile terminal

Publications (2)

Publication Number Publication Date
CN101009886A CN101009886A (en) 2007-08-01
CN100479568C true CN100479568C (en) 2009-04-15

Family

ID=38697951

Family Applications (1)

Application Number Title Priority Date Filing Date
CNB2006101696006A Expired - Fee Related CN100479568C (en) 2006-12-25 2006-12-25 Implementation scheme for secrecy phone of the smart mobile terminal

Country Status (1)

Country Link
CN (1) CN100479568C (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101635919B (en) * 2009-08-20 2012-10-10 中兴通讯股份有限公司 Encryption method and encryption system of IMS conference medium data of IP multimedia system
WO2013008248A1 (en) * 2011-05-25 2013-01-17 Madaiah Vinod Kumar Method and system for exchanging content among communication entities over communication network
CN102231883A (en) * 2011-07-11 2011-11-02 上海柯斯软件有限公司 Teledata transmission content encrypting system and method based on RFID (radio frequency identification)-SIM (subscriber identity module) card
CN106161376B (en) * 2015-04-13 2020-01-14 中国移动通信集团公司 End-to-end encrypted communication negotiation method and device
CN106357940B (en) * 2016-09-27 2019-04-30 北京安云世纪科技有限公司 The method and apparatus of secret telephony

Also Published As

Publication number Publication date
CN101009886A (en) 2007-08-01

Similar Documents

Publication Publication Date Title
TW435026B (en) Method for securing over-the-air communication in a wireless system
CN101583083B (en) Implementation method of real-time data service and real-time data service system
US7284123B2 (en) Secure communication system and method for integrated mobile communication terminals comprising a short-distance communication module
CN106059869A (en) Internet of things smart home equipment safety control method and system
CN203279187U (en) Voice encryption bluetooth earphone with fingerprint identification function
CN101384042A (en) Mobile phone encryption method based on secure digital interface encryption card
CN103974241A (en) Voice end-to-end encryption method aiming at mobile terminal with Android system
CN104333455A (en) Secrete communication system and method for smart phone
WO2012024903A1 (en) Method for encrypting voice calls in mobile communication network, and system, terminal, and network side thereof
CN109714360B (en) Intelligent gateway and gateway communication processing method
CN112929339B (en) Message transmitting method for protecting privacy
CN105792193A (en) End-to-end encryption method for mobile terminal voice based on iOS operating system
JPWO2011111842A1 (en) Secret communication method using VPN, system thereof, program thereof, and recording medium of program
CN104219213A (en) Android system oriented end-to-end speech encryption method
CN109922047A (en) A kind of image delivering system and method
CN100479568C (en) Implementation scheme for secrecy phone of the smart mobile terminal
CN118019000B (en) High-security mobile phone communication system based on dynamic token link encryption
CN103096304A (en) Method for encryption and decryption of secure voice tendencies of internet protocol (IP) network communication terminal
WO2016082401A1 (en) Conversation method and apparatus, user terminal and computer storage medium
CN115348579B (en) Voice encryption method applied to wireless earphone and encryption type wireless earphone
WO2012024905A1 (en) Method, terminal and ggsn for encrypting and decrypting data in mobile communication network
CN108390755A (en) The safe input method of SIM pasting cards based on built-in security chip
CN100550721C (en) A kind of method and system of end-to-end wireless encryption communication
CN103458401A (en) Voice encryption communication system and voice encryption communication method
CN106533686B (en) Encrypted communication method and system, communication unit and client

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C14 Grant of patent or utility model
GR01 Patent grant
C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20090415

Termination date: 20100125