Double-factor authentication method based on double convolutional and cycle encoding

Abstract

The invention discloses a double-factor authentication method based on double convolutional and cycle encoding, which comprises an encrypting process and a decrypting process. The encrypting process comprises the steps of: carrying out scrambling processing on a palm print feature image of an original palm print image to obtain a first palm print feature secret key; then randomly generating an original secret key, and carrying out convolutional encoding and cycle encoding processing to obtain an intermediate secret key; and carrying out exclusive-or processing on the intermediate secret key and the first palm print feature secret key to obtain encrypted information. The decrypting process comprises the steps of: carrying out exclusive-or processing on the encrypted information and a palm print feature secret key obtained again; and then carrying out convolutional decoding and cycle decoding processing to recover the original secret key. According to the double-factor authentication method disclosed by the invention, double-factor authentication of palm print biological features and a random secret key is implemented, so that security is high; and moreover, in the decrypting process, the original secret key can be completely recovered by carrying out exclusive-or processing on the encrypted information and the scrambled palm print features and then carrying out convolutional decoding and cycle decoding, so that authentication accuracy is improved.

Description

technical field

[0001] The invention belongs to the field of identification and authentication, in particular to a two-factor authentication method based on convolution and cyclic double coding. Background technique

[0002] With the continuous advancement of the world's informatization process, information security issues will arouse more widespread attention. The struggle between stealing secrets and anti-stealing secrets is intensifying, especially in the field of information security, the work of keeping secrets is facing more and more new problems, which are becoming more and more complicated. Identification and authentication technology has become an important basis for information security and privacy protection, so it also puts forward higher requirements for identification and authentication technology.

[0003] Traditional identification methods include identification items (such as keys, certificates, ATM cards, etc.) and identification knowledge (such as user na...

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