CN107819576A - Communication authentication method and system - Google Patents
Communication authentication method and system Download PDFInfo
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- CN107819576A CN107819576A CN201711211129.7A CN201711211129A CN107819576A CN 107819576 A CN107819576 A CN 107819576A CN 201711211129 A CN201711211129 A CN 201711211129A CN 107819576 A CN107819576 A CN 107819576A
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- Prior art keywords
- random number
- key
- router
- mobile terminal
- authentication code
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L63/00—Network architectures or network communication protocols for network security
- H04L63/08—Network architectures or network communication protocols for network security for authentication of entities
- H04L63/083—Network architectures or network communication protocols for network security for authentication of entities using passwords
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04L—TRANSMISSION OF DIGITAL INFORMATION, e.g. TELEGRAPHIC COMMUNICATION
- H04L9/00—Cryptographic mechanisms or cryptographic arrangements for secret or secure communications; Network security protocols
- H04L9/08—Key distribution or management, e.g. generation, sharing or updating, of cryptographic keys or passwords
- H04L9/0861—Generation of secret information including derivation or calculation of cryptographic keys or passwords
- H04L9/0869—Generation of secret information including derivation or calculation of cryptographic keys or passwords involving random numbers or seeds
Abstract
The present invention relates to a kind of communication authentication method and system, the communication authentication method includes：Generate the first random number；According to first random number and first key generation first message authentication code, the first key is generated by the mobile terminal according to the first private key of the mobile terminal and the second public key of router；First random number and first message authentication code are sent to router, the router is set to be authenticated according to the second key and first random number to the first message authentication code, second key is generated by the router according to the second private key of the router and the first private key of the mobile terminal；Wherein, the first private key of the mobile terminal and the first public key are mutually matched, and the second private key and the second public key of the router are mutually matched.The present invention can effectively solve the wireless safety issue for throwing screen.
Description
Technical field
The present invention relates to field of information security technology, more particularly to a kind of communication authentication method and system.
Background technology
The mobile devices such as smart mobile phone, tablet personal computer and notebook computer are indispensable in people's daily life and work
A part.These equipment general sizes are smaller, do not possess larger display screen.Wireless screen technology of throwing passes through media router
(Media Router) can link together mobile device and display and internet, be convenient for people in mobile device
Content is displayed by display.
In the application scenarios such as wired home, Intelligent office and intelligent hotel, often possess multiple mobile devices by file
Wireless screen of throwing is to the demand on display.Therefore need to be authenticated between media router and multiple mobile devices of user,
Ensure that only having the equipment of validated user to throw screen arrives display, and only legal display can just receive the throwing of user equipment
Screen.However, the wireless safety issue for throwing screen is not yet resolved at present.
The content of the invention
Based on this, it is necessary to for the wireless safety problem for throwing screen, there is provided a kind of communication authentication method and system.
A kind of communication authentication method, applied to mobile terminal, methods described includes：
Generate the first random number；
According to first random number and first key generation first message authentication code, the first key is by the movement
Terminal generates according to the first private key of the mobile terminal and the second public key of router；
First random number and first message authentication code are sent to router, make the router according to the second key
The first message authentication code is authenticated with first random number, second key is as the router according to
The first private key generation of the second private key and the mobile terminal of router；
Wherein, the first private key of the mobile terminal and the first public key are mutually matched, the second private key of the router and
Second public key is mutually matched.
In one of the embodiments, methods described also includes：
The second random number and the second message authentication code that receiving router is sent, wherein, the router is close according to second
Key and first random number to the first message certification code authentication by when, generate second random number, described second
Message authentication code is generated by the router according to first random number, the second random number and the second key；
Second message authentication code is authenticated according to first random number, the second random number and first key.
In one of the embodiments, methods described also includes：
When being passed through according to first random number, the second random number and first key to the second message authentication code authentication
When, then the connection with corresponding display screen is established by router.
A kind of communication authentication method, applied to router, methods described includes：
The first random number and the first message authentication code that mobile terminal is sent are received, the first message authentication code is by described
Mobile terminal generates according to first random number and first key, and the first key is by the mobile terminal according to the shifting
The second public key generation of the first private key and router of dynamic terminal；
When according to the second key and first random number to the first message certification code authentication by when, then generate
Two random numbers, second key by the router according to the second private key of the router and the mobile terminal first
Private key generates；
Second message authentication code is generated according to first random number, the second random number and the second key；
Second random number and the second message authentication code are sent to the mobile terminal, make the mobile terminal according to
First random number, the second random number and first key are authenticated to second message authentication code.
In one of the embodiments, second random number and the second message authentication code are sent to the mobile terminal
Afterwards, methods described also includes：
When the mobile terminal to the second message authentication code authentication by when, the router establish it is described it is mobile eventually
Hold the connection with corresponding display screen.
A kind of mobile terminal, the mobile terminal include：
First generation module, for generating the first random number；
Second generation module, it is described for generating first message authentication code according to first random number and first key
First key is generated by the mobile terminal according to the first private key of the mobile terminal and the second public key of router；
First sending module, first random number and first message authentication code are sent to road for the mobile terminal
By device, the router is set to be authenticated according to the second key and first random number to the first message authentication code, institute
The second key is stated to be generated according to the second private key of the router and the first private key of the mobile terminal by the router；
Wherein, the first private key of the mobile terminal and the first public key are mutually matched, the second private key of the router and
Second public key is mutually matched.
In one of the embodiments, the mobile terminal also includes：
Receiving module, the second random number sent for receiving router and the second message authentication code, wherein, the route
Device according to the second key and first random number to the first message certification code authentication by when, generation described second is random
Number, second message authentication code are generated by the router according to first random number, the second random number and the second key；
Authentication module, for being recognized according to first random number, the second random number and first key second message
Card code is authenticated.
In one of the embodiments, the mobile terminal also includes：
Module is established, for working as according to first random number, the second random number and first key to second message
Certification code authentication by when, then established and the connection of corresponding display screen by router.
A kind of router, the router include：
First module, for receiving the first random number and first message authentication code of mobile terminal transmission, described first disappears
Cease authentication code to be generated according to first random number and first key by the mobile terminal, the first key is by the movement
Terminal generates according to the first private key of the mobile terminal and the second public key of router；
Second module, the first message certification code authentication is led to according to the second key and first random number for working as
It is out-of-date, then generate the second random number, second key is by the router according to the second private key of the router and described
The first private key generation of mobile terminal；
3rd module, for generating the second message authentication according to first random number, the second random number and the second key
Code；
4th module, for second random number and the second message authentication code to be sent to the mobile terminal, make institute
Mobile terminal is stated to recognize second message authentication code according to first random number, the second random number and first key
Card.
In one of the embodiments, the router also includes：
5th module, for when the mobile terminal to the second message authentication code authentication by when, the router
Establish connection of the mobile terminal with corresponding display screen.
A kind of communication authentication system, including display screen, mobile terminal as described above and router as described above；
The router be used for mobile terminal send the first certification message code be authenticated, and certification by when,
The second message authentication code is sent to the mobile terminal；
The mobile terminal be used for second message authentication code is authenticated, and certification by when, by described
Router establishes the connection with the display screen.
In communication authentication method described above and communication authentication system, router can disappear to the first of mobile terminal transmission
Breath authentication code is authenticated, and determines whether the mobile terminal is legal, and when legal, router sends second to the mobile terminal and disappeared
Authentication code is ceased, mobile terminal is authenticated to second message authentication code, determines whether the router is legal, when legal, moves
Dynamic terminal then establishes the connection with display screen by router, so as to which the safety realized between mobile terminal and display screen throws screen.
Brief description of the drawings
Fig. 1 is the flow chart of the communication authentication method of one embodiment of the invention；
Fig. 2 is the flow chart of the communication authentication method of another embodiment of the present invention；
Fig. 3 is the flow chart of the communication authentication method of further embodiment of the present invention；
Fig. 4 is the flow chart of the communication authentication method of further embodiment of the present invention；
Fig. 5 is the flow chart of the communication authentication method of further embodiment of the present invention；
Fig. 6 is the structure chart of the mobile terminal of one embodiment of the invention；
Fig. 7 is the structure chart of the mobile terminal of another embodiment of the present invention；
Fig. 8 is the structure chart of the mobile terminal of further embodiment of the present invention；
Fig. 9 is the structure chart of the router of one embodiment of the invention；
Figure 10 is the structure chart of the router of another embodiment of the present invention.
Embodiment
In order to make the purpose , technical scheme and advantage of the present invention be clearer, it is right below in conjunction with drawings and Examples
The present invention is further elaborated.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, and
It is not used in the restriction present invention.
Fig. 1 is the flow chart of the communication authentication method of one embodiment of the invention.Wherein, this method is applied to mobile whole
End, as shown in figure 1, this method includes：
Step 120, the first random number is generated
Step 140, first message authentication code is generated according to the first random number and first key, first key is by mobile terminal
Generated according to the second public key of the first private key of mobile terminal and router；
Step 160, the first random number and first message authentication code are sent to router, makes router according to the second key
First message authentication code is authenticated with the first random number, the second key is by router according to the second private key of router and shifting
The first private key generation of dynamic terminal；
Wherein, the first private key of mobile terminal and the first public key are mutually matched, the second private key and the second public key of router
It is mutually matched.
In communication authentication method described above, the first message authentication code that router can be sent to mobile terminal is recognized
Card, determines whether the mobile terminal is legal, and when legal, router sends the second message authentication code to the mobile terminal, mobile
Terminal-pair second message authentication code is authenticated, and determines whether the router is legal, and when legal, mobile terminal then passes through road
Connection with display screen is established by device, so as to which the safety realized between mobile terminal and display screen throws screen.
Wherein, the first private key carries the identity of mobile terminal, and the second private key carries the identity of router.
In the present embodiment, the calculation formula of first key is K1=e (S1, P2), and wherein K1 represents first key, and S1 is represented
First private key, P2 represent the second public key, and e represents Bilinear map computing.
The calculation formula of first private key is S1=sP1, P1=H (ID1), wherein, S1 represents the first private key, and s represents private key
The private key at generation center, P1 represent the first public key, and ID1 represents the identity of mobile terminal.
The calculation formula of first message authentication code is MAC1=HMAC (K1, R1), and wherein MAC1 represents first message certification
Code, R1 represent the first random number, and K1 represents first key, and HMAC represents message authentication code computational algorithm, and it is specially Hash letter
Number.
Second cipher key calculation formula is K2=e (S2, P1), wherein, K2 represents the second key, and S2 represents the second private key, P1
Represent the first public key.
The calculation formula of second private key is S2=s (P2), P2=H (ID2), wherein, s represents the private at private key generation center
Key, ID2 represent the identity of router, and H represents hash function, and P2 represents the second public key.
Fig. 2 is the flow chart of the authentication method of another embodiment of the present invention.As shown in Fig. 2 after step 160, the party
Method also includes：
Step 170, the second random number and the second message authentication code that receiving router is sent, wherein, router is according to the
Two keys and the first random number to first message certification code authentication by when, generate the second random number, the second message authentication code by
Router generates according to the first random number, the second random number and the second key；
Step 180, the second message authentication code is authenticated according to the first random number, the second random number and first key.
Fig. 3 is the flow chart of the communication authentication method of further embodiment of the present invention.As shown in figure 3, this method also includes：
Step 190, when being passed through according to the first random number, the second random number and first key to the second message authentication code authentication
When, then the connection with corresponding display screen is established by router.
Fig. 4 is the flow chart of the communication authentication method of further embodiment of the present invention.Wherein, this method is applied to route
Device, as shown in figure 4, this method includes：
Step 410, receive mobile terminal send the first random number and first message authentication code, first message authentication code by
Mobile terminal generates according to the first random number and first key, first private key of the first key by mobile terminal according to mobile terminal
Generated with the second public key of router；
Step 420, when according to the second key and the first random number to first message certification code authentication by when, then generate
Two random numbers, the second key are generated by router according to the second private key of router and the first private key of mobile terminal；
Step 430, the second message authentication code is generated according to the first random number, the second random number and the second key；
Step 440, the second random number and the second message authentication code are sent to mobile terminal, makes mobile terminal according to first
Random number, the second random number and first key are authenticated to the second message authentication code.
In communication authentication method described above, the first message authentication code that router can be sent to mobile terminal is recognized
Card, determines whether the mobile terminal is legal, and when legal, router sends the second message authentication code to the mobile terminal, mobile
Terminal-pair second message authentication code is authenticated, and determines whether the router is legal, and when legal, mobile terminal then passes through road
Connection with display screen is established by device, so as to which the safety realized between mobile terminal and display screen throws screen.
Fig. 5 is the flow chart of the communication authentication method of further embodiment of the present invention.As shown in figure 5, after step 440,
This method also includes：
Step 450, when mobile terminal to the second message authentication code authentication by when, router establish mobile terminal with it is corresponding
The connection of display screen.
Fig. 6 is the structure chart of the mobile terminal of one embodiment of the invention.As shown in fig. 6, the mobile terminal includes：
First generation module 620, for generating the first random number
Second generation module 640, for generating first message authentication code according to the first random number and first key, first is close
Key is generated by mobile terminal according to the first private key of mobile terminal and the second public key of router；
First sending module 660, the first random number and first message authentication code are sent to router for mobile terminal,
Router is authenticated according to the second key and the first random number to first message authentication code, the second key by router according to
The first private key generation of the second private key and mobile terminal of router；
Wherein, the first private key of mobile terminal and the first public key are mutually matched, the second private key and the second public key of router
It is mutually matched.
In the present embodiment, the first message authentication code that router can be sent to mobile terminal is authenticated, and determines the shifting
Whether dynamic terminal legal, and when legal, router sends the second message authentication code to the mobile terminal, mobile terminal to this second
Message authentication code is authenticated, and determines whether the router is legal, and when legal, mobile terminal is then established and aobvious by router
The connection of display screen, so as to which the safety realized between mobile terminal and display screen throws screen.
Fig. 7 is the structure chart of the mobile terminal of another embodiment of the present invention.As shown in fig. 7, mobile terminal also includes：
Receiving module 670, the second random number sent for receiving router and the second message authentication code, wherein, route
Device according to the second key and the first random number to first message certification code authentication by when, generate the second random number, the second message
Authentication code is generated by router according to the first random number, the second random number and the second key；
Authentication module 680, for being entered according to the first random number, the second random number and first key to the second message authentication code
Row certification.
Fig. 8 is the structure chart of the mobile terminal of further embodiment of the present invention.As shown in figure 8, mobile terminal also includes：
Module 690 is established, for working as according to the first random number, the second random number and first key to the second message authentication code
Certification by when, then established and the connection of corresponding display screen by router.
Fig. 9 is the structure chart of the router of one embodiment of the invention.As shown in figure 9, the router includes：
First module 910, for receiving the first random number and first message authentication code of mobile terminal transmission, first message
Authentication code is generated by mobile terminal according to the first random number and first key, and first key is by mobile terminal according to mobile terminal
Second public key of the first private key and router generates；
Second module 920, for when according to the second key and the first random number to first message certification code authentication by when,
The second random number is then generated, the second key is given birth to by router according to the second private key of router and the first private key of mobile terminal
Into；
3rd module 930, for generating the second message authentication according to the first random number, the second random number and the second key
Code；
4th module 940, for the second random number and the second message authentication code to be sent to mobile terminal, make mobile terminal
The second message authentication code is authenticated according to the first random number, the second random number and first key.
In router described above, the first message authentication code that router can be sent to mobile terminal is authenticated, really
Whether the fixed mobile terminal is legal, and when legal, router sends the second message authentication code, mobile terminal pair to the mobile terminal
Second message authentication code is authenticated, and determines whether the router is legal, and when legal, mobile terminal is then built by router
The vertical connection with display screen, so as to which the safety realized between mobile terminal and display screen throws screen.
Figure 10 is the structure chart of the router of another embodiment of the present invention.As shown in Figure 10, the router also includes：
5th module 950, for when mobile terminal to the second message authentication code authentication by when, router establish it is mobile eventually
Hold the connection with corresponding display screen.
The present embodiment additionally provides a kind of communication authentication system, including display screen, mobile terminal as described above and such as
Above-described router；
Wherein, router be used for mobile terminal send the first certification message code be authenticated, and certification by when,
The second message authentication code is sent to mobile terminal；
Mobile terminal be used for the second message authentication code is authenticated, and certification by when, by router establish with
The connection of display screen.
In communication authentication system described above, the first message authentication code that router can be sent to mobile terminal is recognized
Card, determines whether the mobile terminal is legal, and when legal, router sends the second message authentication code to the mobile terminal, mobile
Terminal-pair second message authentication code is authenticated, and determines whether the router is legal, and when legal, mobile terminal then passes through road
Connection with display screen is established by device, so as to which the safety realized between mobile terminal and display screen throws screen.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, the scope that this specification is recorded all is considered to be.
Embodiment described above only expresses the several embodiments of the present invention, and its description is more specific and detailed, but simultaneously
Can not therefore it be construed as limiting the scope of the patent.It should be pointed out that come for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to the protection of the present invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (11)
1. a kind of communication authentication method, applied to mobile terminal, it is characterised in that methods described includes：
Generate the first random number；
According to first random number and first key generation first message authentication code, the first key is by the mobile terminal
Generated according to the second public key of the first private key of the mobile terminal and router；
First random number and first message authentication code are sent to router, make the router according to the second key and institute
State the first random number to be authenticated the first message authentication code, second key is by the router according to the route
The first private key generation of the second private key and the mobile terminal of device；
Wherein, the first private key of the mobile terminal and the first public key are mutually matched, the second private key of the router and second
Public key is mutually matched.
2. according to the method for claim 1, it is characterised in that described by first random number and first message authentication code
Send to router, methods described also includes：
The second random number and the second message authentication code that receiving router is sent, wherein, the router according to the second key and
First random number to the first message certification code authentication by when, generate second random number, second message
Authentication code is generated by the router according to first random number, the second random number and the second key；
Second message authentication code is authenticated according to first random number, the second random number and first key.
3. according to the method for claim 2, it is characterised in that methods described also includes：
When according to first random number, the second random number and first key to the second message authentication code authentication by when,
The connection with corresponding display screen is then established by router.
4. a kind of communication authentication method, applied to router, it is characterised in that methods described includes：
The first random number and the first message authentication code that mobile terminal is sent are received, the first message authentication code is by the movement
Terminal generates according to first random number and first key, and the first key is by the mobile terminal according to described mobile whole
The second public key generation of first private key and router at end；
When according to the second key and first random number to the first message certification code authentication by when, then generate second with
Machine number, second key is by the router according to the second private key of the router and the first private key of the mobile terminal
Generation；
Second message authentication code is generated according to first random number, the second random number and the second key；
Second random number and the second message authentication code are sent to the mobile terminal, make the mobile terminal according to
First random number, the second random number and first key are authenticated to second message authentication code.
5. according to the method for claim 4, it is characterised in that send second random number and the second message authentication code
After to the mobile terminal, methods described also includes：
When the mobile terminal to the second message authentication code authentication by when, the router establish the mobile terminal with
The connection of corresponding display screen.
6. a kind of mobile terminal, it is characterised in that the mobile terminal includes：
First generation module, for generating the first random number；
Second generation module, for generating first message authentication code according to first random number and first key, described first
Key is generated by the mobile terminal according to the first private key of the mobile terminal and the second public key of router；
First sending module, first random number and first message authentication code are sent to route for the mobile terminal
Device, the router is set to be authenticated according to the second key and first random number to the first message authentication code, it is described
Second key is generated by the router according to the second private key of the router and the first private key of the mobile terminal；
Wherein, the first private key of the mobile terminal and the first public key are mutually matched, the second private key of the router and second
Public key is mutually matched.
7. mobile terminal according to claim 6, it is characterised in that the mobile terminal also includes：
Receiving module, the second random number sent for receiving router and the second message authentication code, wherein, the router root
According to the second key and first random number to the first message certification code authentication by when, generate second random number,
Second message authentication code is generated by the router according to first random number, the second random number and the second key；
Authentication module, for according to first random number, the second random number and first key to second message authentication code
It is authenticated.
8. mobile terminal according to claim 7, it is characterised in that the mobile terminal also includes：
Module is established, for working as according to first random number, the second random number and first key to second message authentication
Code authentication by when, then established and the connection of corresponding display screen by router.
9. a kind of router, it is characterised in that the router includes：
First module, the first random number and first message authentication code, the first message for receiving mobile terminal transmission are recognized
Demonstrate,prove code to be generated according to first random number and first key by the mobile terminal, the first key is by the mobile terminal
Generated according to the second public key of the first private key of the mobile terminal and router；
Second module, the first message certification code authentication is passed through according to the second key and first random number for working as
When, then the second random number is generated, second key is by second private key of the router according to the router and the shifting
The first private key generation of dynamic terminal；
3rd module, for generating the second message authentication code according to first random number, the second random number and the second key；
4th module, for second random number and the second message authentication code to be sent to the mobile terminal, make the shifting
Dynamic terminal is authenticated according to first random number, the second random number and first key to second message authentication code.
10. router according to claim 9, it is characterised in that the router also includes：
5th module, for when the mobile terminal to the second message authentication code authentication by when, the router is established
The connection of the mobile terminal and corresponding display screen.
A kind of 11. communication authentication system, it is characterised in that the mobile end including display screen, as described in claim any one of 6-8
End and the router as described in claim 9 or 10；
The router be used for mobile terminal send the first certification message code be authenticated, and certification by when, to institute
State mobile terminal and send the second message authentication code；
The mobile terminal be used for second message authentication code is authenticated, and certification by when, pass through the route
Device establishes the connection with the display screen.
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