Reconfigurable password coprocessor circuit

Abstract

This invention discloses reconfigurable cipher coprocessor circuit, which contains memory module, control module and reconfigurable cipher process unit. Said reconfigurable cipher coprocessor circuit can realize various different cipher algorithm, making different user or same user selecting different algorithm indifferent time with strong adaptability and expansibility, in case of the cipher algorithm can not be used a new cipher algorithm is designed to replace the original algorithm to obtain higher safety.

Description

technical field [0001] The invention relates to a circuit scheme, in particular to a circuit design for realizing a reconfigurable cryptographic coprocessor. Background technique [0002] At present, with the development and application of network information technology, daily office and life are increasingly dependent on the network environment for communication and information sharing. Therefore, accurate transmission of information and effective confidentiality in the process of network communication have become important issues for safe use of the network. [0003] Cryptographic chips are the key core components for building information security products. The cryptographic chips widely used at home and abroad are dedicated devices designed for specific cryptographic algorithms. The architecture of the chip is fixed and not easy to change, and the applied cryptographic algorithm is also fixed. Thereby there are following shortcoming and deficiency: [0004] 1. The dedic...

AI Technical Summary

Problems solved by technology

[0004] 1. The dedicated cryptographic chip can only implement its specific algorithm during use, and users can only use this predetermined cryptographic algorithm to encrypt / decrypt data and cannot be replaced at will;

[0005] 2. The special cryptographic chip itself has poor adaptability and cannot meet the requirements of different users or the same user for different cryptographic algorithms

If the algorithm needs to be replaced, the chip must be replaced, which increases the design cost and prolongs the design cycle;

[0006] 3. Any cryptographic algorithm may be broken. Once the cryptographic algorithm is broken or the cryptographic algorithm cannot be used due to other reasons, it is necessary to upgrade the original cryptographic algorithm. However, it is impossible to upgrade the dedicated cryptographic chip, so there is no expansion poor security

However, there is no prior public disclosure in the prior art, and the circuit design for realizing the reconfigurable cryptographic chip is also blank.

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