A method of identity authentication based on n-dimensional sphere

Abstract

An identity authentication method based on N-dimensional sphere is provided by the present invention. An authentication server accepts a user registration and an identity verification after initialization; when a new user registers, the user computes a vector via a security one-way function according to a password selected by himself and submits it to the authentication server, the authentication server appoints an IDg as an identifier of the user identity for the user; the authentication server determines a N-dimensional sphere by combining its own secret vectors and the vector submitted by the user; the authentication server selects several different points on the N-dimensional sphere randomly, forms an encrypted file with them and sends it to the user via a security channel; when requiring for identity authentication, the user performs computation by using his own password and the encrypted file containing the identity authentication identifier, and transmits the result to the authentication server. After performing computation, the authentication server verifies and determines whether the user identity should be accepted. The present invention can reduce the storing information and the calculation amount of the authentication server efficiently, and can prevent fake authentication servers.

Description

technical field [0001] The invention relates to an identity authentication method in computer system security and network security, in particular to an identity authentication method based on an N-dimensional sphere. Background technique [0002] With the development of online transactions, e-commerce, and e-government, endless cybercrimes have caused a crisis of trust in people's online identities, so identity authentication has become more and more important. Identity authentication technology can be closely combined with business processes of enterprises and governments to prevent illegal access to important resources. It can also be said that identity authentication is the basis of the entire information security system. At present, the commonly used identity authentication methods include: password, dynamic password, smart card authentication, public key infrastructure (PKI), biometric authentication, etc. [0003] The basic idea of ​​password authentication is that e...

AI Technical Summary

Problems solved by technology

Using biometric authentication technology, it is no longer necessary to memorize and set passwords, and it is more convenient to use, but the high cost and complicated technology hinder its promotion and application

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