Electronic signature encryption and decryption method and system based on HASH

Abstract

The invention discloses an electronic signature encryption and decryption method and system based on HASH. The method comprises the following steps: an encryption process: acquiring to-be-encrypted signature stroke data; performing standardization; extracting features; processing through a threshold value; the HASH value of each signature stroke feature is calculated, and the HASH value is a final signature key; the decryption process comprises the following steps: collecting to-be-decoded signature stroke data; performing standardization; performing feature extraction; similarity comparison is carried out; and decrypting according to a comparison result of the similarity and a similarity threshold. The encryption part comprises a data acquisition module, a standardization module, a feature extraction module, a threshold value processing module, a HASH value calculation module, an encryption module and a signature feature library; and the decryption part comprises a data acquisition module, a standardization module, a feature extraction module, a similarity comparison module and a decryption module. The problems that the secret key is easy to steal, the password is passively used and the secret key is easy to forget are solved.

Description

technical field [0001] The invention belongs to the technical field of encryption and decryption, and in particular relates to a HASH-based electronic signature encryption and decryption method and system. Background technique [0002] At present, with the vigorous development of the Internet and the rise of various applications, online payment is also booming. When we use the convenience brought to us by the Internet, it is also full of various potential information security problems. There are various problems in conventional password storage and input methods. The most common ones are password theft, and passive With password questions, the password can be used without the password owner's knowledge and encrypted data can be obtained. For example: there are memory problems in character passwords, and the problem of forgetting passwords often occurs, and this kind of password is the easiest to be stolen, and the password can be used passively. Another example is fingerpr...

AI Technical Summary

Problems solved by technology

[0003] In the existing technology, the secret key is easy to be stolen, the password is passively used, and the secret key is easy to forget. At present, there is no effective solution

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