Grouping encryption and decryption algorithm

Abstract

The invention discloses sectionalization encipher-decipher algorithm, which is characterized by the following: adopting 10-bit number for clear text and secret text as basic arithmetic unit; adopting 10-subtraction method for deciphering course; making the digital sequence length of obtained 10-bit secret text; reducing the problem of secret text inputting time and operating quantity.

Description

technical field

[0001] The invention relates to a group encryption and decryption algorithm, which belongs to the technical field of digital anti-counterfeiting and information security. Background technique

[0002] Cryptography is a science and technology that studies encryption and decryption transformations. Generally, the file to be encrypted and protected is called plaintext, and the encrypted transformed file is called ciphertext. The process of converting plaintext into ciphertext is called encryption, and the process of converting ciphertext into plaintext is called decryption. The mutual transformation between plaintext and ciphertext is reversible, and there is only a unique, error-free reversible transformation. The transformation rules used when encrypting plaintext are called encryption algorithms, and the transformation rules used when decrypting ciphertext are called decryption algorithms. Encryption algorithms and decryption algorithms are collectively cal...

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