Dynamic password generation method based on iris information

Abstract

The invention relates to a dynamic password generation method based on iris information. The dynamic password generation method comprises the following steps: a digital camera photographs an eye of a user to obtain a digital image of the eye of the user; an iris processing terminal is used for receiving the digital image, extracting an iris image from the digital image and encoding the iris image based on a Gabor function set to generate binary code data, and an SM3 encryption algorithm is used for carrying out encryption on the binary code data based on a time factor to generate a digital format challenge code; and a token device uses the SM3 algorithm to carry out the encryption and conversion on the digital format challenge code based on the time factor to obtain a dynamic password, and the user inputs the dynamic password into an authentication inputting box, corresponding to an identity authentication server, for carrying out authentication. According to the dynamic password generation method disclosed by the invention, the safety performance of the challenge type dynamic password is further improved, the needs of an application place with the very high reliability requirement are met, the automation degree of a system is also improved, and the dynamic password generation method is convenient to use by the user.

Description

[0001] The present invention is a divisional application of a patent with the application number 2014101662377, the application date is April 23, 2014, and the invention title is "Method for Generating Dynamic Password Based on Iris Information". technical field [0002] The invention relates to the field of electronic authentication, in particular to a method for generating a dynamic password based on iris information. Background technique [0003] As one of the most secure identity authentication technologies, dynamic passwords have been applied by more and more industries. Because it is easy to use and has nothing to do with the platform, with the development of mobile Internet, dynamic password technology has become the mainstream of identity authentication technology, and is widely used in enterprises, online games, finance and other fields. It is engaged in the research and development and production of dynamic passwords at home and abroad. There are more and more ente...

AI Technical Summary

Problems solved by technology

For the dynamic password in the challenge-response mode, since there is no synchronization condition between the token and the server except the same algorithm, it can effectively solve the problem of token out-of-sync, reduce the impact on the application, and greatly The reliability of the system is increased, but the disadvantage of using this dynamic password is that the user needs to manually input the challenge value when using it, which increases the complexity for the operator

Images