Authentication and key agreement method capable of resisting leakage of password

Abstract

The invention discloses an authentication and key agreement method capable of resisting leakage of a password. The method comprises six parts: a system initialization stage, a user registration stage,a user login stage, a user authentication stage, a password changing stage and a key changing stage. The method provided by the invention helps the user to efficiently authenticate with the server and negotiate the session key, effectively resists the attack of the side channel, and is very high in practicability.

Description

technical field [0001] The invention belongs to the technical field of information security, and relates to an authentication and key negotiation method against password leakage, in particular to the characteristics of user password use, the need for user privacy protection, the need for resisting side channel attacks, and the limitation of method efficiency. An anti-password leakage authentication and key agreement method based on the password splitting method. Background technique [0002] With the development of computers, mobile devices and Internet technology, people are increasingly communicating with others through the Internet. Before communication, there is a step that cannot be ignored is authentication. Communication without authentication loses its practical significance. Most types of authentication today are implemented through the use of authenticating usernames and passwords. The password is usually easy to remember and can be used conveniently. In everyd...

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Problems solved by technology

But the use of these algorithms will seriously affect the efficiency of the protocol

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