Binary channel multiple fingerprints optical encryption method

An encryption method, multi-fingerprint technology, applied in the direction of acquiring/organizing fingerprints/palmprints, instruments, characters and pattern recognition, etc., can solve the problems of difficult information recording, low security, difficult key management and use, etc. Key management, easy portability, and high security
CN105809115AActive Publication Date: 2016-07-27SHANGHAI NORMAL UNIVERSITY
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHANGHAI NORMAL UNIVERSITY
Publication Date
2016-07-27

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Abstract

The invention provides a binary channel multiple fingerprints optical encryption method comprising an encryption process and a deciphering process. A laser beam generator emits linearly polarized lights which are divided by a beam splitter into transmitting light and reflecting light. The transmitting light arrives to a left channel encryption key with fingerprint images and generates left channel modulated lasers. The reflecting light arrives to the right channel encryption key with fingerprint images and generates right channel modulated lasers. Recognizing the non-duplication characteristic of a biosignature, the invention integrates biological feature identification technologies with optical information processing technologies and provides such a binary channel multiple fingerprints optical encryption method, which is highly reliable and secure for encryption key management and is convenient for people to carry around. The method has a good application prospect in the information safety field.
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Description

technical field

[0001] The invention belongs to the technical field of optical image encryption, and relates to an optical encryption method, in particular to a fingerprint encryption method based on human biological characteristics, that is, a dual-channel multi-fingerprint optical encryption method. Background technique

[0002] With the advent of the information age, information as an important resource has been paid more and more attention. However, problems such as information theft and information leakage continue to emerge, and information security has an important impact on national security and economic and social development, and has increasingly become a prominent problem that needs to be solved. Moreover, with the rapid development of society and economy, the amount of encrypted information or documents is constantly increasing, and the storage and extraction of massive encrypted information has become an urgent problem to be solved.

[0003] Information encrypt...

Claims

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