Method for enciphering and deciphering human-body safety

Abstract

The invention uses the real random numbers containing the human body information of implementor of encryption and decryption as the cipher key, and introduces a new encryption algorithm about a complex system space mapping, namely using many mapping functions randomly selectable to make encryption; the encrypted codes are converted into two-dimension screen codes to make image-imbedding hiding for the confidential documents.

Description

technical field [0001] The invention belongs to the field of information security, in particular to a highly secure encryption and decryption method containing human body information. Background technique [0002] In recent years, with the rapid development of computer network technology, the research on highly secure encryption and decryption methods for computer data communication has received great attention. A large number of patents and research papers have been published. The current situation and existing problems in this field are described by citing several recently published patents. [0003] According to the set rules, the plaintext data is encrypted according to the given array, that is, the key, and then combined to achieve the purpose of obtaining the ciphertext. At present, the world's representative practical methods are 64-bit encryption DES (Data Encryption Standard) and 128-bit encryption. Encrypted AES (Advanced En-cryption Standard) algorithm. Researc...

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to solve the problem that the traditional encryption and decryption method is not safe, and can not solve the problem of the management of the encryption and decryption, and proposes a method that utilizes the characteristics of human body information to be truly random, easy to use, etc., and the encryption and decryption are plural A method for highly secure encryption and decryption of human body information as a key

[0013] Another object of the present invention is to solve the algorithm of block encryption (Block Cypher) such as traditional DES and AES, it is relatively easy to infer the ciphertext content through known plaintext, or can deduce the problem of encryption rule through special sequence; And traditional The BBS continuous encryption (Stream Cypher) algorithm, the calculation speed is slow, and the encryption rules can be deduced through the prime number heuristic method; and the traditional encryption algorithm is relatively simple, and it is relatively fixed and difficult to change. Once the algorithm is made public, it is easier to crack the ciphertext The problem

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