Iris confidential authentication method

An authentication method, iris technology, applied in the direction of homomorphic encryption communication, user identity/authority verification, complex mathematical operations, etc., can solve the problems of low overall performance and high complexity, and achieve good recognition accuracy, good computing efficiency and safety effect
CN112187477APending Publication Date: 2021-01-05GUILIN UNIV OF ELECTRONIC TECH
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Patent Information

Authority / Receiving Office
CN Β· China
Current Assignee / Owner
GUILIN UNIV OF ELECTRONIC TECH
Publication Date
2021-01-05

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Abstract

The invention discloses an iris confidential authentication method, which comprises the following steps: acquiring a first to-be-authenticated iris feature matrix and a first mask matrix correspondingto the first iris feature matrix to form a first to-be-authenticated matrix; performing dimension reduction processing on the first to-be-authenticated matrix to obtain a second to-be-authenticated matrix; performing mapping processing on the second to-be-authenticated matrix to obtain an integer matrix; carrying out homomorphic encryption processing on the integer matrix to obtain a first encryption matrix; comparing the first encryption matrix with a second encryption matrix pre-stored in a database to obtain a comparison result, and completing iris authentication, wherein the second encryption matrix is obtained by encrypting the template matrix and the second mask matrix corresponding to the template matrix through a homomorphic encryption algorithm. According to the method, a randomprojection dimension reduction method and a better mapping method are adopted, so that the method has better calculation efficiency and safety. Besides, the mask information of the iris is considered,which is a factor which is not considered in most of other iris authentication schemes with privacy protection, so that better recognition accuracy can be obtained.
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Description

Technical field

[0001] The invention relates to the technical field of biometric identification, in particular to an iris confidential authentication method.Background technique

[0002] Biometric identification technology has been widely used. Among them, iris recognition has been widely researched and deployed due to its high anti-counterfeiting and high accuracy.

[0003] However, there is still no good solution to the data protection problem in biometric identification. The main problem at present is that most biometric identification technologies store and transmit user data in plain text. This has laid a huge hidden danger for data leakage. It is the most critical technical problem to realize the comparison of biological characteristics in the encrypted state.

[0004] Although there are some biometric recognition schemes with privacy protection features, the overall performance is not high, especially for iris recognition technology with high complexity.Summary of the invention

[0005] In vie...

Claims

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