Encryption method of block cipher

An encryption method and block cipher technology, applied in the field of information security encryption, can solve the problems of insufficient application security, slow algorithm speed, and failure to find a balance, etc., and achieve easy and fast implementation, high security, and safe and reasonable design Effect
CN101013938BActive Publication Date: 2010-04-07MAYWIDE TECH
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
MAYWIDE TECH
Publication Date
2010-04-07

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Abstract

The invention relates to one method for group coding on message data, which comprises the following steps: dividing groups and setting key; setting recycle displacement constant L and displacement parameter R for mode 2 and recycle displacement operation; setting and processing nonlinear conversion; setting and processing multi-dimensional conversion diffusion; setting codes formula wheel function; processing middle data as codes data set. The invention provides one group coding formula based on complete math theory.
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Description

technical field

[0001] The invention relates to the technical field of information security encryption, in particular to a method for forming an encryption code to protect information by using an electronic computer and encoding technology. Background technique

[0002] With the rapid development and wide application of computer and data communication technology, the society relies more and more on the safe storage, safe processing and safe transmission of information, and the issue of information security protection becomes more important. Reliable encryption methods can make some sensitive and confidential information safely stored or transmitted on media without protective measures.

[0003] The block cipher method is one of the modern cryptography techniques to solve the problem of information security protection. Its birth and development have important theoretical value and extensive application background. The promulgation of the American Data Encryption Standard DES...

Claims

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