Symmetrical key pool and relay communication-based quasi authentication and key agreement (AKA) identity authentication system and method

A technology of identity authentication and relay communication, which is applied in the fields of private identity authentication and key negotiation, can solve the problems of unable to maintain the freshness of the key seed or the variable range, easy to be cracked, and low confidentiality, etc., to improve Capacity and replaceability, guarantee true randomness and security, and enhance the effect of high confidentiality

Active Publication Date: 2018-11-02
RUBAN QUANTUM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. In group communication, there is usually only one or a small number of key seeds involved in group key negotiation, which cannot keep the freshness of key seeds or the range of change is small, and it is easy to be cracked
[0008] 2. At present, the encryption method between members and relays in the group mainly relies on the group key for encryption. There is no key for separate communication between the two parties, and the transmission of important information is relatively not sec

Method used

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  • Symmetrical key pool and relay communication-based quasi authentication and key agreement (AKA) identity authentication system and method
  • Symmetrical key pool and relay communication-based quasi authentication and key agreement (AKA) identity authentication system and method
  • Symmetrical key pool and relay communication-based quasi authentication and key agreement (AKA) identity authentication system and method

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Experimental program
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Embodiment 1

[0072] instructions

[0073] The scenario of this embodiment is as figure 1 As shown in this figure, member R, member A0, member A1, member A2, member A3, member A4 and member C are all members of the same group, and member R is a relay unit.

[0074] In this figure, the active party participating in the authentication is C, which contains the private key pool K C and group key pool K G ; The passive party participating in the authentication is R, which contains the private key pool K R and group key pool K G .

[0075] The private key pool is a symmetric key pool between members and the server, and the group key pool is a symmetric key pool between members in the group.

[0076] Member S is the key management server and also serves as the server. Both member C and member R belong to S, which contains the private key pool and group key pool K of all members. G .

[0077] As a communication relay, member R has performed identity authentication and key negotiation with me...

Embodiment 2

[0135] instructions

[0136] Such as Figure 4 As shown, the identity authentication system of the present invention may include multiple key management servers, and different key management servers are located in different quantum network service stations. Each quantum network service station is in the quantum communication network, so quantum network service stations can share inter-station quantum keys through QKD, thus ensuring high information security.

[0137] Such as Figure 4 , in this figure, member R, member A0, member A1, member A2, member A3, member A4 and member C are all members of the same group, and member R is a relay unit. The active party participating in the authentication is C, which contains the private key pool K C and group key pool K G ; The passive party participating in the authentication is R, which contains the private key pool K R and group key pool K G ; Members S1 and S2 are key management servers, also serving as servers, member R belong...

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Abstract

The invention discloses a symmetrical key pool and relay communication-based quasi authentication and key agreement (AKA) identity authentication system and method. The AKA identity authentication system comprises a member involving in AKA identity authentication, a repeater and a server, wherein the member, the repeater and the server share a group key pool, in an AKA identity authentication process, the member and the repeater use key seeds from the group key pool separately and combine random number parameters to calculate and obtain a negotiation key between the member and the repeater, the random number parameter is acquired correspondingly in the group key pool by using a pointer address A, in the AKA identity authentication process, the repeater acquires the pointer address A through the server, and the member acquires, through the repeater, a parameter generating the pointer address A from the server, and generates the pointer address A through the parameter. Through adoption of the symmetrical key pool and relay communication-based quasi AKA identity authentication system and method, communication is safer.

Description

technical field [0001] The invention relates to the technical field of secure communication, in particular to private identity authentication and key agreement based on group data network. Each member of the group has the same key pool, that is, the group key pool. Background technique [0002] Authentication, that is, identity authentication is the basic technology to achieve information security. The system checks the user's identity to confirm whether the user has access and use rights to certain resources, and can also perform identity authentication between systems. [0003] With the development of quantum computers, classical asymmetric encryption algorithms will no longer be safe, and symmetric key algorithms will become popular in both authentication and encryption and decryption fields. For example, the AKA mechanism, one of the commonly used authentication methods based on symmetric key algorithms in the field of mobile communications, is currently used. The full...

Claims

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Application Information

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IPC IPC(8): H04L9/08H04L29/06
CPCH04L9/0838H04L9/0869H04L63/0435H04L63/08H04L63/083
Inventor 富尧钟一民余秋炜
Owner RUBAN QUANTUM TECH CO LTD
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