Entity bidirectional identification method

A physical and legal technology, applied in the direction of public key for secure communication, user identity/authority verification, digital transmission system, etc., to achieve the effect of facilitating application implementation and simplifying operating conditions

Active Publication Date: 2008-07-16
CHINA IWNCOMM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This guarantee requirement cannot be met in many current application environments. For example, communication networks usually use entity authentication mechanisms to implement user access control functions. Before the authentication mechanism is successfully completed, users are prohibited from accessing the network. Access to the certificate authority to obtain the validity of the public key of the peer entity - the network access point

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  • Entity bidirectional identification method

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Embodiment Construction

[0040] Referring to Fig. 2, the method of the present invention involves three entities, two authentication entities A and B, and a trusted third party TP (Trusted third Party), which is a trusted third party for the authentication entities A and B. The system that realizes peer-to-peer authentication between two entities A and B through a trusted third party TP is called a TePA (Tri-element Peer Authentication) system. valid X Indicates the certificate Cert X Validity; PublicKey X is the public key of entity X (X stands for A or B); ID X Is the identity of entity X, by the certificate Cert X or the entity's discriminator X means; Pub X Indicates the verification result of entity X, which is determined by the certificate Cert X and its validityValid X Consists of or consists of entity X and its public key PublicKey XComposition, Token is the token field, defined as follows:

[0041] TokenAB=sS A (R A ‖ID A ‖Text1)

[0042] TokenTB=R A ‖R B ‖Pub A ‖Pub B ‖sS TP...

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Abstract

The invention relates to a reality bi-directional identification method, including following steps that: (1) a reality(A) sends a message(1) to a reality(B); (2) the reality(B) sends a message(2) to a credible third party(TP) after receiving the message(1); (3) the credible third party(TP) checks the legality of the reality(A) and the reality(B) after receiving the message(2); (4) the credible third party(TP) sends back a message(3) to the reality(B) after checking the legality of the reality(A) and the reality(B); (5) the reality(B) verifies the message(3) after receiving the message(3); (6) the reality(B) sends a message(4) to the reality(A) after the reality(B) verifies the message(3); (7) the reality(A) verifies the message(4) after receiving the message(4); as a result, the identification is completed; compared with the conventional identification mechanism, the invention has the advantages of defining an on-line retrieval and identification mechanism of a public key, realizing the centralized management of the mechanism, simplifying the operating condition of the protocol and facilitating the application and implement of the public key.

Description

technical field [0001] The invention relates to an entity two-way authentication method. Background technique [0002] Entity authentication methods using asymmetric cryptography can be divided into two types, namely one-way authentication and two-way authentication. The uniqueness or timeliness of authentication is identified by time-varying parameters, which are often used as time-varying parameters, such as time stamps, sequence numbers, and random numbers. If the time stamp or sequence number is used as the time-varying parameter, one-way authentication only needs to use one message transmission, and two-way authentication needs to use two message transmissions; if random numbers are used as the time-varying parameter, then one-way authentication needs to use two messages Passing, two-way authentication needs to adopt three message passing or four message passing (that is, parallel authentication of two message passing). [0003] Regardless of the above-mentioned authe...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L9/30H04L9/32H04L29/06G06F21/31G06F21/33
CPCH04L9/321H04L9/3247
Inventor 铁满霞曹军黄振海赖晓龙
Owner CHINA IWNCOMM
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