CN103458401B - A kind of voice encryption communication system and communication means - Google Patents
A kind of voice encryption communication system and communication means Download PDFInfo
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- CN103458401B CN103458401B CN201310398765.0A CN201310398765A CN103458401B CN 103458401 B CN103458401 B CN 103458401B CN 201310398765 A CN201310398765 A CN 201310398765A CN 103458401 B CN103458401 B CN 103458401B
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Abstract
The invention discloses a kind of voice encryption communication system and communication means, voice encryption communication system is made up of mobile phone terminal, the cryptographic calculations card, initialization apparatus and the key management apparatus that separate with mobile phone terminal；The encryption of communication speech is realized by mobile phone terminal, cryptographic calculations card co-operation: at initial phase, initialization apparatus generates card key and corresponding mobile phone key；Voice communication establishment stage, after key management apparatus generates session key, card key and mobile phone key is used to be sent to communicating pair after being encrypted respectively, after being used mobile phone terminal and cryptographic calculations card jointly to complete deciphering by calling party/callee, obtaining session key, communicating pair uses session key that speech data is encrypted decryption oprerations.Use technical solutions according to the invention, it is possible to increase the safety of mobile phone speech communication.
Description
Technical field
The present invention relates to field of mobile communication, particularly relate to a kind of voice encryption communication system and communication means.
Background technology
Mobile phone is as the daily media of communication of people, and for social communication, mobile phone is topmost, be also its Core Feature
It is by voice communication.The application of smart mobile phone is more and more extensive at present, and user can use smart mobile phone to access the Internet,
The mode carrying out voice communication is also not limited to traditional being carried out by telephone network, and user can use mobile phone access to interconnect
Net, by IP network transmitting audio data, the i.e. networking telephone.The most traditional voice communication based on telephone network,
It is also based on the networking telephone voice communication of IP network, all suffers from the safety of identical safety problem, i.e. speech data,
Assailant eavesdrops for the malice of important voice call or videoconference, it will cause user or group's large losses
Interests.
Traditional telephone line is easy to be ravesdropping.Such as interception facility is put in the receiver of phone, or out of doors
Accessing interception facility on circuit, wireless sensing equipment can listen to wireless phone or the cell phone of indoor
Content of Communication.Use some sophisticated equipments even can eavesdrop the content of satellite phone and microwave communication.The networking telephone
Also same security risk is faced, owing to existing network telephone software is typically the plaintext of speech data is carried out package
After transmission on IP network, thus assailant can intercept speech data general data as intercepting from any place
Bag.
For privacy and the call safety of protection user, need to strengthen the safety guarantee to voice communication.This can be by right
Speech data is encrypted realization.Voice communication data is encrypted, can be transmitted by various networks
Voice communication realize protect end to end.Have way at present, including: 1) increase secure hardware at mobile phone terminal,
Voice is encrypted；2) installing software in mobile phone operating system additional, the voice communication to being transmitted by IP network is entered
Row encryption.
Such scheme can improve the safety of voice communication to a certain extent, but all there are some problems, such as: 1)
Mobile phone installs hardware additional and is only suitable for special mobile phone, does not have versatility；2) install software on mobile phone operating system additional to implement language
The encryption of sound data, the safety of its key will be directly connected to the safety of voice encryption, owing to existing mobile phone is grasped
Make system and mostly there is more safety problem, thus it is the most hidden for the protection existence safety of key to only rely upon operating system
Suffer from.
Summary of the invention
The invention provides a kind of voice encryption communication system and communication means, common by mobile phone and cryptographic calculations card
Coordinate, it is achieved the encrypting and decrypting of voice communication data is operated, it is possible to increase the safety of mobile phone speech communication.
For solving the problems referred to above, the invention provides the communication means of a kind of voice encryption communication system, including:
Initialization step:
Initialization apparatus generates card key, and generates the mobile phone key corresponding with card key；Initialization apparatus will generate
Described card key send to cryptographic calculations card, described mobile phone key is sent to mobile phone terminal, and the Herba Carlinae biebersteinii that will generate
Key and mobile phone key send to key management apparatus；
Voice communication establishment step:
Calling party's mobile phone terminal sends voice encryption communication connection request information to key management apparatus；
Key management apparatus generates session key, and described session key is utilized respectively card key and the hands of communicating pair
Secret key encryption obtains session key ciphertext, and the session information including session key ciphertext is sent extremely by key management apparatus
Corresponding communicating pair mobile phone terminal；
Communicating pair mobile phone terminal and each self-corresponding cryptographic calculations cartoon cross mobile phone key and card key decrypted session information
Middle session key ciphertext；
Voice communication step:
Communicating pair mobile phone terminal utilizes session key that speech data is encrypted deciphering.
Further, in described initialization step, initialization apparatus produces first random number PIN as cryptographic calculations card
Code, and described PIN code is sent and is stored in cryptographic calculations card.
Further, calling party's mobile phone terminal sends the step of voice encryption communication connection request information to key management apparatus
Farther include:
Calling party's mobile phone terminal generates the second random number, and utilizes the mobile phone key of calling party's mobile phone terminal by described second
Random number encryption；Described voice encryption communication connection request information includes the second random number of encryption.
Further, described voice encryption communication connection request information also includes information type, and whole by calling party's mobile phone
The calling party of the mobile phone key encryption of end and the identity information of callee.
Further, described key management apparatus also includes before generating session key:
After key management apparatus receives the voice encryption communication connection request information that calling party's mobile phone terminal sends, utilize
Described voice encryption communication connection request information is decrypted by the mobile phone key of calling party's mobile phone terminal, it is thus achieved that second with
Machine number and calling party identity information and called party identity information；
Key management apparatus checking calling party identity information and called party identity information.
Further, the session information including session key ciphertext is sent to corresponding communicating pair hands by key management apparatus
The step of machine terminal includes:
It is close that key management apparatus utilizes the mobile phone key encryption session key of calling party's mobile phone terminal to obtain the first ciphertext session
Key；The card key utilizing calling party passcode to calculate card is encrypted the second random number and is obtained the first result of calculation, calculates first
Result and described first ciphertext session key XOR obtain calling party's session key ciphertext；
Key management apparatus utilize called party cell phone terminal mobile phone key encryption session key, the second random number and
Calling party identity information obtains the second ciphertext session key, the second random number ciphertext and calling party identity information ciphertext；
The card key utilizing callee's cryptographic calculations card is encrypted the second random number and is obtained the second result of calculation, calculates second
Result and described second ciphertext session key XOR obtain callee's session key ciphertext；
The first session information comprising calling party's session key ciphertext is sent to calling party's mobile phone eventually by key management apparatus
End, will comprise callee's session key ciphertext, the second random number ciphertext and the second session of calling party identity information ciphertext
Information sends to called party cell phone terminal.
Further, communicating pair mobile phone terminal and each self-corresponding cryptographic calculations cartoon cross mobile phone key and card key deciphering
In session information, session key ciphertext includes:
Calling party's mobile phone terminal and calling party passcode calculate the card mobile phone key by calling party's mobile phone terminal and calling party blocks
The step of session key ciphertext in secret key decryption session information, including: the second random number is sent by calling party's mobile phone terminal
To its correspondence calling party passcode calculate card, and by calling party passcode calculate card utilize its card key encryption described second with
Machine number obtains the first result of calculation, and sends the first result of calculation to calling party's mobile phone terminal；Calling party's mobile phone terminal
Described first result of calculation is utilized to obtain the first ciphertext meeting with the calling party's session key ciphertext XOR in the first session information
Words key, the mobile phone key of recycling calling party's mobile phone terminal is deciphered described first ciphertext session key and is obtained session key；
Called party cell phone terminal and callee's cryptographic calculations card are blocked by mobile phone key and the callee of called party cell phone terminal
The step of the session key of encryption in secret key decryption session information, including: called party cell phone terminal utilizes its mobile phone key
Decipher the second random number ciphertext in the second session information and calling party identity information ciphertext, it is thus achieved that the second random number and master
The side's of crying identity information, and the second random number is sent to callee's cryptographic calculations card；Callee's cryptographic calculations card utilizes it
Card key is encrypted described second random number and is obtained the second result of calculation, and sends the second result of calculation to called party cell phone
Terminal；Called party cell phone terminal utilizes described second result of calculation close with the callee's session key in the second session information
Literary composition XOR obtains the second ciphertext session key, and the mobile phone key of recycling called party cell phone terminal deciphers described second ciphertext
Session key obtains session key.
Further, the second random number is sent the calling party passcode calculating card to its correspondence by described calling party's mobile phone terminal
Before, also including that calling party's mobilephone terminal user input calling party passcode calculates the PIN code of card, calling party's mobile phone terminal will
Calling party passcode calculates the PIN code of card and sends to calling party passcode calculating card, and calling party passcode calculates card and enters PIN code
The step of row checking；Second random number was sent before callee's cryptographic calculations card by called party cell phone terminal, also included
Called party cell phone terminal use inputs callee's cryptographic calculations card PIN code, and called party cell phone terminal is by callee's password meter
Calculate card PIN code to send to callee's cryptographic calculations card, the step that PIN code is verified by callee's cryptographic calculations card.
Further, in initialization step, described mobile phone terminal is wired or wireless with initialization apparatus to be connected, password meter
Calculating and block be connected wired or wireless with initialization apparatus, initialization apparatus is wired or wireless with key management apparatus to be connected；
In voice communication establishment step, the corresponding cryptographic calculations card of described mobile phone terminal is by wired or wireless company
Connect, described mobile phone terminal and key management apparatus wireless connections.
Further, described cryptographic calculations card is by NFC interface, RFID interface, blue tooth interface or infrared interface and hands
Machine terminal and initialization apparatus connect.
Present invention also offers the mobile phone speech cryptographic communication system of a kind of separation between machine and card, including mobile phone terminal and mobile phone
Cryptographic calculations card, initialization apparatus and the key management apparatus that terminal separates；Wherein,
Described mobile phone terminal is for receiving mobile phone key in initialization step；For in voice communication establishment step to
Key management apparatus send voice encryption communication connection request information, receive include session key ciphertext session information,
Cross the session key ciphertext in mobile phone key and card key decrypted session information with corresponding cryptographic calculations cartoon, utilize meeting
Words double secret key speech data is encrypted deciphering；
Described cryptographic calculations card is for receiving card key in initialization step；For in voice communication establishment step with
Corresponding mobile phone terminal is by the session key ciphertext in mobile phone key and card key decrypted session information；
Initialization apparatus is for generating card key and the mobile phone key corresponding with card key, and is sent by described card key
To cryptographic calculations card, mobile phone key is sent to mobile phone terminal, and the card key generated and mobile phone key are sent extremely
Key management apparatus；
Key management apparatus is used for generating session key, and session key is utilized respectively card key and the hands of communicating pair
Secret key encryption obtains session key ciphertext, sends to corresponding communication double by the session information including session key ciphertext
Side's mobile phone terminal.
Further, described initialization apparatus is further used for generating the first random number in initialization step as password meter
Calculate the PIN code of card, and PIN code is sent to cryptographic calculations card；
Cryptographic calculations card is further used for storing PIN code.
Further, described mobile phone terminal includes calling party's mobile phone terminal and called party cell phone terminal；Described calling party's mobile phone
Terminal, in voice communication establishment step, is further used for generating the second random number in voice establishment step, and utilizes
The mobile phone key of calling party's mobile phone terminal is by described second random number encryption；Described voice encryption communication connection request information
The second random number including encryption.
Further, described voice encryption communication connection request information also includes information type, and whole by calling party's mobile phone
The calling party of the mobile phone key encryption of end and the identity information of callee.
Further, described key management apparatus, in voice communication establishment step, is further used for receiving calling party
After the voice encryption communication connection request information that mobile phone terminal sends, utilize the mobile phone key of calling party's mobile phone terminal to institute
Predicate sound coded communication connectivity request message is decrypted, it is thus achieved that calling party identity information and called party identity information, and
Checking calling party identity information and called party identity information.
Further, described key management apparatus is in voice communication establishment step, for utilizing calling party's mobile phone terminal
Mobile phone key encryption session key obtains the first ciphertext session key；Calling party passcode is utilized to calculate the card key encryption of card
Second random number obtains the first result of calculation, the first result of calculation and described first ciphertext session key XOR is led
The side's of crying session key ciphertext；
For utilizing the mobile phone key of called party cell phone terminal to encrypt session key, the second random number and caller identity letter
Breath obtains the second ciphertext session key, the second random number ciphertext and calling party identity information ciphertext；Utilize callee's password
The card key of calculating card is encrypted the second random number and is obtained the second result of calculation, by the second result of calculation and described second ciphertext
Session key XOR obtains callee's session key ciphertext；
And for the first session information comprising calling party's session key ciphertext is sent to calling party's mobile phone terminal, will
The second session information comprising callee's session key ciphertext, the second random number ciphertext and calling party identity information ciphertext is sent out
Deliver to called party cell phone terminal.
Further, described calling party's mobile phone terminal is in voice communication establishment step, for being sent extremely by the second random number
The calling party passcode of its correspondence calculates card；Receive calling party passcode and calculate the first result of calculation that card sends, and utilize institute
Stating the first result of calculation and the calling party's session key ciphertext XOR in the first session information, to obtain the first ciphertext session close
Key, the mobile phone key of recycling calling party's mobile phone terminal is deciphered described first ciphertext session key and is obtained session key；
Calling party passcode calculates card and is used for receiving the second random number that calling party's mobile phone terminal sends, and utilizes its card key to add
Close described second random number obtains the first result of calculation, and sends the first result of calculation to calling party's mobile phone terminal；
Described called party cell phone terminal, in voice communication establishment step, is used for utilizing its mobile phone key to decipher the second session
The second random number ciphertext in information and calling party identity information ciphertext, it is thus achieved that the second random number and calling party identity information,
Second random number is sent the callee's cryptographic calculations card to its correspondence；Receive the second of the transmission of callee's cryptographic calculations card
Result of calculation, and utilize described second result of calculation to obtain with the callee's session key ciphertext XOR in the second session information
To the second ciphertext session key, the mobile phone key of recycling called party cell phone terminal deciphers described second ciphertext session key
Obtain session key；
Callee's cryptographic calculations card, for receiving the second random number that called party cell phone terminal sends, utilizes its card key to add
Close described second random number obtains the second result of calculation, and sends the second result of calculation to called party cell phone terminal.
Further, described calling party's mobile phone terminal calculates card with calling party passcode in voice communication establishment step and is connected,
Being further used for calling party's mobilephone terminal user input calling party passcode and calculate the PIN code of card, calling party's mobile phone terminal will
Calling party passcode calculates the PIN code of card and sends to calling party passcode calculating card；
Calling party passcode calculates card and is further used for the PIN code that checking is sent by calling party's mobile phone terminal；
Described called party cell phone terminal is connected with callee's cryptographic calculations card in voice communication establishment step, uses further
Input the PIN code of callee's cryptographic calculations card in called party cell phone terminal use, called party cell phone terminal is close by callee
Yardage is calculated the PIN code of card and is sent to callee's cryptographic calculations card；
Callee's cryptographic calculations card is further used for the PIN code that checking is sent by called party cell phone terminal.
Further, in initialization step, described mobile phone terminal is wired or wireless with initialization apparatus to be connected, password meter
Calculating and block be connected wired or wireless with initialization apparatus, initialization apparatus is wired or wireless with key management apparatus to be connected；
In voice communication establishment step, the corresponding cryptographic calculations card of described mobile phone terminal is by wired or wireless company
Connect, described mobile phone terminal and key management apparatus wireless connections.
Further, described cryptographic calculations card is by NFC interface, RFID interface, blue tooth interface or infrared interface and hands
Machine terminal and initialization apparatus connect.
Using voice encryption communication system and the communication means of present invention offer, the encryption of communication speech is by mobile phone, password
Calculate card co-operation to realize: at initial phase, initialization apparatus generates card key and corresponding mobile phone key；Language
In the sound connection setup stage, after key management apparatus generates session key, card key is used to add with mobile phone key respectively
Communicating pair it is sent to, calling party/callee after using mobile phone and cryptographic calculations card jointly to complete deciphering after close, it is thus achieved that
Session key；In the voice communication stage, communicating pair uses session key that speech data is encrypted decryption oprerations.Should
By technical solutions according to the invention, it is possible to increase the safety of mobile phone speech communication.
Accompanying drawing explanation
Fig. 1 is the structural representation of voice encryption communication system of the present invention；
Fig. 2 is the schematic flow sheet of communication means of the present invention；
Fig. 3 is the schematic flow sheet of communication means exemplary embodiments of the present invention.
Detailed description of the invention
In order to make the purpose of the present invention, technical scheme and advantage clearer, develop simultaneously reality referring to the drawings
Execute example, the present invention is described in further detail.
The application is based on following inventive concept:
For existing voice communication encryption technology means, its core is the safety of the session key for encryption
Property.In view of the means increasing hardware in prior art in mobile phone terminal do not have versatility, and due to mobile phone
The insecurity of operating system, therefore installs software on mobile phone terminal additional and realizes encryption and there is also security breaches, be
With the present invention based on separation physically, by mobile phone terminal and common with the cryptographic calculations card of its physical separation
The session key encrypted is decrypted operation and just can obtain final session key, and then add session key
Safety.
Based on above-mentioned consideration, this application provides the communication means of a kind of voice encryption communication system, wherein voice
Cryptographic communication system is as it is shown in figure 1, include: mobile phone terminal, cryptographic calculations card, initialization apparatus and key
Management equipment；
On above-mentioned voice encryption communication system physics framework, this application provides a kind of communication means, such as Fig. 2
Shown in include:
A, initialization step:
A1, initialization apparatus generate card key, and generate the mobile phone key corresponding with card key；
The described card key generated is sent to cryptographic calculations card by A2, initialization apparatus, is sent extremely by described mobile phone key
Mobile phone terminal, and the card key generated and mobile phone key are sent to key management apparatus；
B, voice communication establishment step:
B1, calling party's mobile phone terminal send voice encryption communication connection request information to key management apparatus；
B2, key management apparatus generate session key, and described session key is utilized respectively the card key of communicating pair
Obtaining session key ciphertext with mobile phone key encryption, the session information including session key ciphertext is sent out by key management apparatus
Deliver to the communicating pair mobile phone terminal of correspondence；
B3, communicating pair mobile phone terminal and each self-corresponding cryptographic calculations cartoon cross mobile phone key and card key decrypted session
Session key ciphertext in information；
C, communicating pair mobile phone terminal utilize session key that speech data is encrypted deciphering.
It should be noted that in step B2, after key management apparatus generates session key, for the most sharp
With card key and mobile phone key, session key is encrypted, can by use to session key sectional encryption in the way of,
Such as, the partial content of card key encryption session key, recycling mobile phone key is used to encrypt its of session key
His partial content, when deciphering, card key and mobile phone key after deciphering respective encrypted content respectively, recombinant
Form final session key；The mode of dual nested partitions method can also be used, such as, use card key to add secret meeting
Forming for the first time ciphertext after words key, then forms second time ciphertext after being encrypted by mobile phone key, during deciphering, priority makes
Decipher with card key and mobile phone key and finally give session key etc. mode.
As the exemplary embodiments of the application, in conjunction with flow chart shown in Fig. 3, do described in detail below:
Step a initialization step:
A1, initialization apparatus generate card key and the first random number as PIN code, and generate and card key
Corresponding mobile phone key；
Card key and the card PIN code of generation are sent and are stored in cryptographic calculations card by a2, initialization apparatus, will
Mobile phone key sends to mobile phone terminal, and sends card key and mobile phone key to key management apparatus；
Step b voice communication establishment step:
B1, calling party's mobile phone terminal send voice encryption communication connection request information to key management apparatus；
Concrete includes:
B11, calling party's mobile phone terminal generate the second random number, and utilize the mobile phone key of calling party's mobile phone terminal to incite somebody to action
Described second random number encryption；
B12, calling party's mobile phone terminal send voice encryption communication connection request information to key management apparatus, described
Voice encryption communication connection request information include calling party's mobile phone terminal mobile phone key encryption the second random number,
And by the calling party of mobile phone key encryption of calling party's mobile phone terminal and the identity information of callee and unencrypted
Information type；Wherein, identity information can be mobile phone terminal number or ID；
B2, key management apparatus generate session key, and described session key is utilized respectively the card of communicating pair
Key and mobile phone key encryption obtain session key ciphertext, and key management apparatus will include the meeting of session key ciphertext
Words information sends to corresponding communicating pair mobile phone terminal；
Concrete includes:
B21, key management apparatus receive the voice encryption communication connection request information that calling party's mobile phone terminal sends
After, utilize the mobile phone key of calling party's mobile phone terminal that described voice encryption communication connection request information is decrypted,
Obtain the second random number and calling party identity information and called party identity information；
B22, key management apparatus checking calling party identity information and called party identity information；
B23, authentication success after, key management apparatus generate session key；
It is close that b24, key management apparatus utilize the mobile phone key encryption session key of calling party's mobile phone terminal to obtain first
Literary composition session key；The card key utilizing calling party passcode to calculate card is encrypted the second random number and is obtained the first result of calculation,
First result of calculation and described first ciphertext session key XOR are obtained calling party's session key ciphertext；
B25, key management apparatus utilize the mobile phone key encryption session key of called party cell phone terminal, second random
Number and calling party identity information obtain the second ciphertext session key, the second random number ciphertext and calling party identity information
Ciphertext；The card key utilizing callee's cryptographic calculations card is encrypted the second random number and is obtained the second result of calculation, by
Two result of calculations and described second ciphertext session key XOR obtain callee's session key ciphertext；
The first session information comprising calling party's session key ciphertext is sent to calling party by b26, key management apparatus
Mobile phone terminal, will comprise callee's session key ciphertext, the second random number ciphertext and calling party identity information ciphertext
Second session information send to called party cell phone terminal；
B3, in calling party side, calling party's mobile phone terminal and calling party passcode calculate card by calling party's mobile phone eventually
Session key ciphertext in the mobile phone key of end and calling party's card key decrypted session information；
Concrete includes:
B31, calling party passcode calculate card and are connected with calling party's mobile phone terminal, and the input of calling party's mobilephone terminal user is main
The PIN code of the side's of crying cryptographic calculations card, calling party passcode is calculated the PIN code of card and sends extremely by calling party's mobile phone terminal
Calling party passcode calculates card；
B32, calling party passcode calculate card and verify PIN code；
B33, after PIN code is proved to be successful, the second random number is sent to the master of its correspondence by calling party's mobile phone terminal
The side's of crying cryptographic calculations card；
B34, by calling party passcode calculate card utilize its card key encrypt described second random number obtain first calculating knot
Really, and by the first result of calculation send to calling party's mobile phone terminal；
B35, calling party's mobile phone terminal utilize described first result of calculation and the calling party's session in the first session information
Key ciphertext XOR obtains the first ciphertext session key, and the mobile phone key of recycling calling party's mobile phone terminal deciphers institute
State the first ciphertext session key and obtain session key.
B3 ', in callee side, called party cell phone terminal and callee's cryptographic calculations card are by called party cell phone eventually
The session key of encryption in the mobile phone key of end and callee's card key decrypted session information；
Concrete includes:
B31 ', callee's cryptographic calculations card are connected with called party cell phone terminal, and called party cell phone terminal use inputs
Callee's cryptographic calculations card PIN code, callee's cryptographic calculations card PIN code is sent to quilt by called party cell phone terminal
The side's of crying cryptographic calculations card；
PIN code is verified by b32 ', callee's cryptographic calculations card；
B33 ', be proved to be successful after, called party cell phone terminal utilizes its mobile phone key to decipher in the second session information
Two random number ciphertexts and calling party identity information ciphertext, it is thus achieved that the second random number and calling party identity information, and will
Second random number sends to callee's cryptographic calculations card；
B34 ', callee's cryptographic calculations card utilize its card key described second random number of encryption to obtain the second calculating knot
Really, and by the second result of calculation send to called party cell phone terminal；
B35 ', called party cell phone terminal utilize described second result of calculation and the callee's meeting in the second session information
Words key ciphertext XOR obtains the second ciphertext session key, the mobile phone key deciphering of recycling called party cell phone terminal
Described second ciphertext session key obtains session key.
C, communicating pair utilize session key that speech data is encrypted deciphering.
Present invention also offers the mobile phone speech cryptographic communication system of a kind of separation between machine and card, including mobile phone terminal and mobile phone
Cryptographic calculations card, initialization apparatus and the key management apparatus that terminal separates；Wherein,
Described mobile phone terminal is for receiving mobile phone key in initialization step；For in voice communication establishment step to
Key management apparatus send voice encryption communication connection request information, receive include session key ciphertext session information,
Cross the session key ciphertext in mobile phone key and card key decrypted session information with corresponding cryptographic calculations cartoon, utilize meeting
Words double secret key speech data is encrypted deciphering；
Described cryptographic calculations card is for receiving card key in initialization step；For in voice communication establishment step with
Corresponding mobile phone terminal is by the session key ciphertext in mobile phone key and card key decrypted session information；
Initialization apparatus is for generating card key and the mobile phone key corresponding with card key, and is sent by described card key
To cryptographic calculations card, mobile phone key is sent to mobile phone terminal, and the card key generated and mobile phone key are sent extremely
Key management apparatus；
Key management apparatus is used for generating session key, and session key is utilized respectively card key and the hands of communicating pair
Secret key encryption obtains session key ciphertext, sends to corresponding communication double by the session information including session key ciphertext
Side's mobile phone terminal.
Further, described initialization apparatus is further used for generating the first random number in initialization step as password meter
Calculate the PIN code of card, and PIN code is sent to cryptographic calculations card；
Cryptographic calculations card is further used for storing PIN code.
Further, described mobile phone terminal includes calling party's mobile phone terminal and called party cell phone terminal；Described calling party's mobile phone
Terminal, in voice communication establishment step, is further used for generating the second random number in voice establishment step, and utilizes
The mobile phone key of calling party's mobile phone terminal is by described second random number encryption；Described voice encryption communication connection request information
The second random number including encryption.
Further, described voice encryption communication connection request information also includes information type, and whole by calling party's mobile phone
The calling party of the mobile phone key encryption of end and the identity information of callee.
Further, described key management apparatus, in voice communication establishment step, is further used for receiving calling party
After the voice encryption communication connection request information that mobile phone terminal sends, utilize the mobile phone key of calling party's mobile phone terminal to institute
Predicate sound coded communication connectivity request message is decrypted, it is thus achieved that calling party identity information and called party identity information, and
Checking calling party identity information and called party identity information.
Further, described key management apparatus is in voice communication establishment step, for utilizing calling party's mobile phone terminal
Mobile phone key encryption session key obtains the first ciphertext session key；Calling party passcode is utilized to calculate the card key encryption of card
Second random number obtains the first result of calculation, the first result of calculation and described first ciphertext session key XOR is led
The side's of crying session key ciphertext；
For utilizing the mobile phone key of called party cell phone terminal to encrypt session key, the second random number and caller identity letter
Breath obtains the second ciphertext session key, the second random number ciphertext and calling party identity information ciphertext；Utilize callee's password
The card key of calculating card is encrypted the second random number and is obtained the second result of calculation, by the second result of calculation and described second ciphertext
Session key XOR obtains callee's session key ciphertext；
And for the first session information comprising calling party's session key ciphertext is sent to calling party's mobile phone terminal, will
The second session information comprising callee's session key ciphertext, the second random number ciphertext and calling party identity information ciphertext is sent out
Deliver to called party cell phone terminal.
Further, described calling party's mobile phone terminal is in voice communication establishment step, for being sent extremely by the second random number
The calling party passcode of its correspondence calculates card；Receive calling party passcode and calculate the first result of calculation that card sends, and utilize institute
Stating the first result of calculation and the calling party's session key ciphertext XOR in the first session information, to obtain the first ciphertext session close
Key, the mobile phone key of recycling calling party's mobile phone terminal is deciphered described first ciphertext session key and is obtained session key；
Calling party passcode calculates card and is used for receiving the second random number that calling party's mobile phone terminal sends, and utilizes its card key to add
Close described second random number obtains the first result of calculation, and sends the first result of calculation to calling party's mobile phone terminal；
Described called party cell phone terminal, in voice communication establishment step, is used for utilizing its mobile phone key to decipher the second session
The second random number ciphertext in information and calling party identity information ciphertext, it is thus achieved that the second random number and calling party identity information,
Second random number is sent the callee's cryptographic calculations card to its correspondence；Receive the second of the transmission of callee's cryptographic calculations card
Result of calculation, and utilize described second result of calculation to obtain with the callee's session key ciphertext XOR in the second session information
To the second ciphertext session key, the mobile phone key of recycling called party cell phone terminal deciphers described second ciphertext session key
Obtain session key；
Callee's cryptographic calculations card, for receiving the second random number that called party cell phone terminal sends, utilizes its card key to add
Close described second random number obtains the second result of calculation, and sends the second result of calculation to called party cell phone terminal.
Further, described calling party's mobile phone terminal calculates card with calling party passcode in voice communication establishment step and is connected,
Being further used for calling party's mobilephone terminal user input calling party passcode and calculate the PIN code of card, calling party's mobile phone terminal will
Calling party passcode calculates the PIN code of card and sends to calling party passcode calculating card；
Calling party passcode calculates card and is further used for the PIN code that checking is sent by calling party's mobile phone terminal；
Described called party cell phone terminal is connected with callee's cryptographic calculations card in voice communication establishment step, uses further
Input the PIN code of callee's cryptographic calculations card in called party cell phone terminal use, called party cell phone terminal is close by callee
Yardage is calculated the PIN code of card and is sent to callee's cryptographic calculations card；
Callee's cryptographic calculations card is further used for the PIN code that checking is sent by called party cell phone terminal.
Further, in initialization step, described mobile phone terminal is wired or wireless with initialization apparatus to be connected, password meter
Calculating and block be connected wired or wireless with initialization apparatus, initialization apparatus is wired or wireless with key management apparatus to be connected；
In voice communication establishment step, the corresponding cryptographic calculations card of described mobile phone terminal is by wired or wireless company
Connect, described mobile phone terminal and key management apparatus wireless connections.
Further, described cryptographic calculations card is by NFC interface, RFID interface, blue tooth interface or infrared interface and hands
Machine terminal and initialization apparatus connect.
It should be noted that each several part in a kind of voice encryption communication system of the application, those skilled in the art
Can realize by the way of computer software on hardware foundation；Further, for the multiple operation performed by each several part,
Can be regarded as the corresponding module of each several part, do not repeat them here.
As preferably, in a kind of voice encryption communication system of the application, cryptographic calculations card is that NFC(near field leads to
Letter) card, such as the nfc card with cryptographic calculations ability of the chip such as CIU5108A, CIU5132H of Hua Da electronics
Product；Mobile phone terminal should be the intelligent terminal with nfc card data communication interface, carries out data transmission with nfc card,
In implementing, mobile phone terminal can use the operating system with nfc card data communication interface to be Android's
Smart mobile phone, e.g., Samsung GALAXY Note II, Samsung GALAXY Nexus, SONY Xperia series hands
Machine etc.；Further, cryptographic calculations card can also be the equipment with RFID interface, blue tooth interface or infrared interface,
Need mobile phone terminal also should possess RFID interface, blue tooth interface or infrared interface accordingly.
Key management apparatus should be industrial computer or the server with hardware protection, can run Windows, Linux behaviour
Making system, CPU can be 32 or 64, operation management interface can use client/server or browser/
The pattern of server；
Key management apparatus should have cryptographic calculations hardware, can be cipher card, intelligent code key (USB Key),
For generating key, carrying out cryptographic calculation operations etc., intelligent code key can be model be that the intelligence of SJK1136 is close
Code key, cipher card can be model be the cipher card etc. of SJK1248；
When cryptographic calculations card is NFC(near-field communication) card time, initialization apparatus should have nfc card data communication interface,
Carrying out data transmission with nfc card, nfc card data communication interface can be internal or external nfc card read write line；
When cryptographic calculations card is the equipment possessing RFID interface, blue tooth interface or infrared interface, initialization apparatus also should have
Standby corresponding interface；Key management apparatus can have network or short message communication interface, with network data transmission or note
The mode of communication and mobile phone terminal carry out data communication, and wherein short message communication interface can use the most built-in one
Or multiple wireless communication module, as gsm communication module, cdma communication module, WCDMA communication module,
CDMA2000 communication module etc.；Further, in the system that the application provides, in the specific implementation, can be by initial
Change equipment and key management apparatus integrate as an integrated equipment, and those skilled in the art can use multiple side
Formula realizes this integrated equipment, does not repeats at this.
In the voice encryption communication system of the present invention, also can increase communication transferring equipment, with communicating pair mobile phone terminal
Connect, forward speech data for voice encryption communicating pair.In implementing, communication transferring equipment should be to have net
The industrial computer of network its communication ability or server, can run Windows, (SuSE) Linux OS, and CPU can be
32 or 64, operation management interface can use the pattern of client/server or browser/server.
It should be noted that the AES applied in this application can be to have symmetric cryptosystem arbitrarily, as
SM1, SM4, AES, DES, 3DES etc., do not repeat them here.
Using voice encryption communication system and the communication means of present invention offer, the encryption of communication speech is by mobile phone, password
Calculate card co-operation to realize: at initial phase, initialization apparatus generates card key and corresponding mobile phone key；
Voice communication establishment stage, after key management apparatus generates session key, uses card key and mobile phone key respectively
It is sent to communicating pair after being encrypted, calling party/callee uses mobile phone jointly to complete with cryptographic calculations card to solve
After close, it is thus achieved that session key；In the voice communication stage, communicating pair uses session key to add speech data
Close decryption oprerations.Application technical solutions according to the invention, it is possible to increase the safety of mobile phone speech communication.
The foregoing is only presently preferred embodiments of the present invention, not in order to limit the present invention, all in the present invention
Spirit and principle within, any modification, equivalent substitution and improvement etc. done, should be included in the present invention protect
Within the scope of protecting.
Claims (14)
1. the communication means of a voice encryption communication system, it is characterised in that including:
Initialization step:
Initialization apparatus generates card key, and generates the mobile phone key corresponding with card key；Initialization apparatus will generate
Described card key send to cryptographic calculations card, described mobile phone key is sent to mobile phone terminal, and the Herba Carlinae biebersteinii that will generate
Key and mobile phone key send to key management apparatus；
Voice communication establishment step:
Calling party's mobile phone terminal sends voice encryption communication connection request information to key management apparatus；
Key management apparatus generates session key, and described session key is utilized respectively card key and the hands of communicating pair
Secret key encryption obtains session key ciphertext, and the session information including session key ciphertext is sent extremely by key management apparatus
Corresponding communicating pair mobile phone terminal；
Communicating pair mobile phone terminal and each self-corresponding cryptographic calculations cartoon cross mobile phone key and card key decrypted session information
Middle session key ciphertext；
Voice communication step:
Communicating pair mobile phone terminal utilizes session key that speech data is encrypted deciphering；
Described key management apparatus also includes before generating session key:
After key management apparatus receives the voice encryption communication connection request information that calling party's mobile phone terminal sends, utilize
Described voice encryption communication connection request information is decrypted by the mobile phone key of calling party's mobile phone terminal, it is thus achieved that second with
Machine number and calling party identity information and called party identity information；
Key management apparatus checking calling party identity information and called party identity information；
The session information including session key ciphertext is sent to corresponding communicating pair mobile phone terminal by key management apparatus
Step includes:
It is close that key management apparatus utilizes the mobile phone key encryption session key of calling party's mobile phone terminal to obtain the first ciphertext session
Key；The card key utilizing calling party passcode to calculate card is encrypted the second random number and is obtained the first result of calculation, calculates first
Result and described first ciphertext session key XOR obtain calling party's session key ciphertext；
Key management apparatus utilize called party cell phone terminal mobile phone key encryption session key, the second random number and
Calling party identity information obtains the second ciphertext session key, the second random number ciphertext and calling party identity information ciphertext；
The card key utilizing callee's cryptographic calculations card is encrypted the second random number and is obtained the second result of calculation, calculates second
Result and described second ciphertext session key XOR obtain callee's session key ciphertext；
The first session information comprising calling party's session key ciphertext is sent to calling party's mobile phone eventually by key management apparatus
End, will comprise callee's session key ciphertext, the second random number ciphertext and the second session of calling party identity information ciphertext
Information sends to called party cell phone terminal；
Communicating pair mobile phone terminal and each self-corresponding cryptographic calculations cartoon cross mobile phone key and card key decrypted session information
Middle session key ciphertext includes:
Calling party's mobile phone terminal and calling party passcode calculate the card mobile phone key by calling party's mobile phone terminal and calling party blocks
The step of session key ciphertext in secret key decryption session information, including: the second random number is sent by calling party's mobile phone terminal
To its correspondence calling party passcode calculate card, and by calling party passcode calculate card utilize its card key encryption described second with
Machine number obtains the first result of calculation, and sends the first result of calculation to calling party's mobile phone terminal；Calling party's mobile phone terminal
Described first result of calculation is utilized to obtain the first ciphertext meeting with the calling party's session key ciphertext XOR in the first session information
Words key, the mobile phone key of recycling calling party's mobile phone terminal is deciphered described first ciphertext session key and is obtained session key；
Called party cell phone terminal and callee's cryptographic calculations card are blocked by mobile phone key and the callee of called party cell phone terminal
The step of the session key of encryption in secret key decryption session information, including: called party cell phone terminal utilizes its mobile phone key
Decipher the second random number ciphertext in the second session information and calling party identity information ciphertext, it is thus achieved that the second random number and master
The side's of crying identity information, and the second random number is sent to callee's cryptographic calculations card；Callee's cryptographic calculations card utilizes it
Card key is encrypted described second random number and is obtained the second result of calculation, and sends the second result of calculation to called party cell phone
Terminal；Called party cell phone terminal utilizes described second result of calculation close with the callee's session key in the second session information
Literary composition XOR obtains the second ciphertext session key, and the mobile phone key of recycling called party cell phone terminal deciphers described second ciphertext
Session key obtains session key.
Communication means the most according to claim 1, it is characterised in that in described initialization step, initialization sets
Standby generation the first random number is as the PIN code of cryptographic calculations card, and is sent by described PIN code and be stored in cryptographic calculations
In card.
Communication means the most according to claim 1, it is characterised in that calling party's mobile phone terminal sets to key management
The step of preparation sending voice coded communication connectivity request message farther includes:
Calling party's mobile phone terminal generates the second random number, and utilizes the mobile phone key of calling party's mobile phone terminal by described second
Random number encryption；Described voice encryption communication connection request information includes the second random number of encryption.
Communication means the most according to claim 1, it is characterised in that described voice encryption communication connection request is believed
Breath also includes information type, and the identity by the calling party of the mobile phone key encryption of calling party's mobile phone terminal with callee
Information.
Communication means the most according to claim 1, it is characterised in that described calling party's mobile phone terminal by second with
Machine number sent before the calling party passcode calculating card of its correspondence, also included that calling party's mobilephone terminal user inputs calling party
The PIN code of cryptographic calculations card, calling party passcode is calculated the PIN code of card and sends close to calling party by calling party's mobile phone terminal
Card calculated by yardage, and calling party passcode calculates the step that PIN code is verified by card；Called party cell phone terminal is random by second
Number sent before callee's cryptographic calculations card, also included that called party cell phone terminal use inputs callee's cryptographic calculations card
PIN code, callee's cryptographic calculations card PIN code is sent to callee's cryptographic calculations card by called party cell phone terminal, called
The step that PIN code is verified by side's cryptographic calculations card.
6. according to the arbitrary described method of claim 1 to 5, it is characterised in that in initialization step, described hands
Machine terminal is wired or wireless with initialization apparatus to be connected, and cryptographic calculations card is wired or wireless with initialization apparatus to be connected, just
Beginning equipment is wired or wireless with key management apparatus to be connected；
In voice communication establishment step, the corresponding cryptographic calculations card of described mobile phone terminal is by wired or wireless company
Connect, described mobile phone terminal and key management apparatus wireless connections.
Communication means the most according to claim 6, it is characterised in that described cryptographic calculations card is connect by NFC
Mouth, RFID interface, blue tooth interface or infrared interface are connected with mobile phone terminal and initialization apparatus.
8. the mobile phone speech cryptographic communication system of a separation between machine and card, it is characterised in that include mobile phone terminal and mobile phone
Cryptographic calculations card, initialization apparatus and the key management apparatus that terminal separates；Wherein,
Described mobile phone terminal is for receiving mobile phone key in initialization step；For in voice communication establishment step to
Key management apparatus send voice encryption communication connection request information, receive include session key ciphertext session information,
Cross the session key ciphertext in mobile phone key and card key decrypted session information with corresponding cryptographic calculations cartoon, utilize meeting
Words double secret key speech data is encrypted deciphering；
Described cryptographic calculations card is for receiving card key in initialization step；For in voice communication establishment step with
Corresponding mobile phone terminal is by the session key ciphertext in mobile phone key and card key decrypted session information；
Initialization apparatus is for generating card key and the mobile phone key corresponding with card key, and is sent by described card key
To cryptographic calculations card, mobile phone key is sent to mobile phone terminal, and the card key generated and mobile phone key are sent extremely
Key management apparatus；
Key management apparatus is used for generating session key, and session key is utilized respectively card key and the hands of communicating pair
Secret key encryption obtains session key ciphertext, sends to corresponding communication double by the session information including session key ciphertext
Side's mobile phone terminal；
Described key management apparatus, in voice communication establishment step, is further used for receiving calling party's mobile phone terminal
After the voice encryption communication connection request information sent, utilize the mobile phone key of calling party's mobile phone terminal that described voice is added
Close communication connection request information is decrypted, it is thus achieved that calling party identity information and called party identity information, and verifies caller
Side's identity information and called party identity information；
Described key management apparatus is in voice communication establishment step, for utilizing the mobile phone key of calling party's mobile phone terminal
Encryption session key obtains the first ciphertext session key；It is random that the card key utilizing calling party passcode to calculate card encrypts second
Number obtains the first result of calculation, and the first result of calculation and described first ciphertext session key XOR are obtained calling party's session
Key ciphertext；
For utilizing the mobile phone key of called party cell phone terminal to encrypt session key, the second random number and caller identity letter
Breath obtains the second ciphertext session key, the second random number ciphertext and calling party identity information ciphertext；Utilize callee's password
The card key of calculating card is encrypted the second random number and is obtained the second result of calculation, by the second result of calculation and described second ciphertext
Session key XOR obtains callee's session key ciphertext；
And for the first session information comprising calling party's session key ciphertext is sent to calling party's mobile phone terminal, will
The second session information comprising callee's session key ciphertext, the second random number ciphertext and calling party identity information ciphertext is sent out
Deliver to called party cell phone terminal；
Described calling party's mobile phone terminal is in voice communication establishment step, for sending the second random number to its correspondence
Calling party passcode calculates card；Receive calling party passcode and calculate the first result of calculation that card sends, and utilize described first meter
Calculate result and obtain the first ciphertext session key with the calling party's session key ciphertext XOR in the first session information, recycling
The mobile phone key of calling party's mobile phone terminal is deciphered described first ciphertext session key and is obtained session key；
Calling party passcode calculates card and is used for receiving the second random number that calling party's mobile phone terminal sends, and utilizes its card key to add
Close described second random number obtains the first result of calculation, and sends the first result of calculation to calling party's mobile phone terminal；
Described called party cell phone terminal, in voice communication establishment step, is used for utilizing its mobile phone key to decipher the second session
The second random number ciphertext in information and calling party identity information ciphertext, it is thus achieved that the second random number and calling party identity information,
Second random number is sent the callee's cryptographic calculations card to its correspondence；Receive the second of the transmission of callee's cryptographic calculations card
Result of calculation, and utilize described second result of calculation to obtain with the callee's session key ciphertext XOR in the second session information
To the second ciphertext session key, the mobile phone key of recycling called party cell phone terminal deciphers described second ciphertext session key
Obtain session key；
Callee's cryptographic calculations card, for receiving the second random number that called party cell phone terminal sends, utilizes its card key to add
Close described second random number obtains the second result of calculation, and sends the second result of calculation to called party cell phone terminal.
System the most according to claim 8, it is characterised in that described initialization apparatus is further used for initially
Change and step generates first random number PIN code as cryptographic calculations card, and PIN code is sent to cryptographic calculations card；
Cryptographic calculations card is further used for storing PIN code.
System the most according to claim 8, it is characterised in that described mobile phone terminal includes that calling party's mobile phone is eventually
End and called party cell phone terminal；Described calling party's mobile phone terminal, in voice communication establishment step, is further used at language
Sound establishment step generates the second random number, and utilizes the mobile phone key of calling party's mobile phone terminal by described second random number
Encryption；Described voice encryption communication connection request information includes the second random number of encryption.
11. systems according to claim 8, it is characterised in that described voice encryption communication connection request information
Also include information type, and the identity letter by the calling party of the mobile phone key encryption of calling party's mobile phone terminal with callee
Breath.
12. systems according to claim 11, it is characterised in that described calling party's mobile phone terminal is in voice communication
Establishment step calculates card with calling party passcode be connected, be further used for calling party's mobilephone terminal user input calling party close
The PIN code of card calculated by yardage, and calling party passcode is calculated the PIN code of card and sends to calling party passcode by calling party's mobile phone terminal
Calculate card；
Calling party passcode calculates card and is further used for the PIN code that checking is sent by calling party's mobile phone terminal；
Described called party cell phone terminal is connected with callee's cryptographic calculations card in voice communication establishment step, uses further
Input the PIN code of callee's cryptographic calculations card in called party cell phone terminal use, called party cell phone terminal is close by callee
Yardage is calculated the PIN code of card and is sent to callee's cryptographic calculations card；
Callee's cryptographic calculations card is further used for the PIN code that checking is sent by called party cell phone terminal.
13. according to Claim 8 to the system described in 12 any one, it is characterised in that in initialization step, institute
Stating that mobile phone terminal is wired or wireless with initialization apparatus to be connected, cryptographic calculations card is wired or wireless with initialization apparatus to be connected,
Initialization apparatus is wired or wireless with key management apparatus to be connected；
In voice communication establishment step, the corresponding cryptographic calculations card of described mobile phone terminal is by wired or wireless company
Connect, described mobile phone terminal and key management apparatus wireless connections.
14. systems according to claim 13, it is characterised in that described cryptographic calculations card by NFC interface,
RFID interface, blue tooth interface or infrared interface are connected with mobile phone terminal and initialization apparatus.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104065648B (en) * | 2014-06-05 | 2017-07-21 | 天地融科技股份有限公司 | A kind of data processing method of voice call |
| CN105992199B (en) * | 2015-01-29 | 2019-04-30 | 成都三零瑞通移动通信有限公司 | A kind of bright close recognition methods of voice communication and system |
| CN106533686B (en) * | 2015-09-10 | 2020-04-28 | 中国电信股份有限公司 | Encrypted communication method and system, communication unit and client |
| CN109905876A (en) * | 2019-01-04 | 2019-06-18 | 广东安创信息科技开发有限公司 | A kind of speech ciphering method based on coprocessor |
| CN111212460A (en) * | 2019-12-24 | 2020-05-29 | 江苏美的清洁电器股份有限公司 | Control system and method of sweeping robot and sweeping robot |
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