A method and system for network security communication

Abstract

The invention discloses a method and a system for realizing network secure communication, solving the problem that the key agreement process based on identity-based cryptography lacks mutual authentication and is liable to key attack during network communication. The method has a mutual authentication process based on the prior key agreement process and includes that B makes Hash calculation on KB and T to obtain h<1>, and A makes Hash calculation on K and T to obtain h<1>'; A compares h<1>' with h h<1>, and if equal, the authentication of B by A passes; A makes Hash calculation on K and T to obtain h<2>, and B makes Hash calculation on K and T to obtain h<2>'; B compares h<2>' with h<2>, and if equal, the authentication of A by B passes. According to the method, both communication parties can confirm that, via the mutual authentication, the received message is the message delivered by the expected deliver; if T and T are modified, the both communication parties can be aware in time and thereby determine that the agreed key is an unexpected key, realizing to prevent key attack.

Description

technical field [0001] The invention relates to information security technology, in particular to a method and system for realizing network security communication. Background technique [0002] The demand for secure communication is becoming more and more important in the communication network. The use of encryption technology is the core of realizing secure communication. The current schemes mainly include certificate-based methods and identity-based cryptosystem (IBC, Identity-Based Cryptosystem) methods. The certificate-based method has problems in certificate storage, transmission and management overhead, but the IBC-based method can effectively solve these problems. [0003] In an IBC-based communication network, the communication key is generated through negotiation between the communication parties, and various algorithms can be used in the negotiation process. Referring to FIG. 1 , it is one of the key agreement processes, and this IBC-based key agreement protocol c...

AI Technical Summary

Problems solved by technology

[0029] The technical problem to be solved by the present invention is to provide a method and system for realizing network security communication, so as to solve the problems of lack of mutual authentication and vulnerability to key attacks in the above-mentioned key agreement process

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