Instruction system with reconfigurable password coprocessor

Abstract

This invention refers to an instruction system of reconfigurable cipher coprocessor adopting very long instruction word (VLIW), which contains execution instruction, configuration instruction, stop instruction and skip instruction. Said instruction system changes the problem of current special cipher chip (without instruction system) only realizing special cipher algorithm and has good flexibility and use performance.

Description

technical field [0001] The invention relates to an instruction system of 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 implementation of the cryptographic algorithm is done by hardware, so there is no corresponding instruction system. Thereby there are following shortcoming and defici...

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 of the reconfigurable cryptographic chip is also blank, and there is no related technology for the design of the instruction system of the reconfigurable cryptographic chip.