Hardware control system of block cipher algorithm

Abstract

The invention discloses a hardware control system for a block cipher algorithm. The system comprises a key expansion module, a process scheduling module, an input data caching module, a round key / configuration information caching module, an encryption and decryption processing module, an output management module and an output data caching module, wherein the encryption and decryption processing module comprises N groups of encryption / decryption modules for performing cryptographic operation, and each group of encryption / decryption modules comprises a round operation module and x round encryption / decryption operation units. According to the hardware control system of the block cipher algorithm, key expansion and parallel processing of n independent encryption / decryption operations are realized through flow scheduling, and the operation speed is improved; full parallel or local parallel operation of block cipher algorithm round operation is completed through a round operation scheduling module in the encryption / decryption module, and configuration of the number of the encryption / decryption modules and the number of round operation units is achieved, so better solutions of resources and speeds are achieved under data streams of different speeds.

Description

technical field [0001] The invention relates to the technical field of computer security, in particular to a hardware control system of a block cipher algorithm. Background technique [0002] The block cipher algorithm is a method of encrypting plaintext by performing multiple row shifts, column confusion, finite field operations, and byte substitutions on the data segments after dividing the plaintext into data segments of a specific length. It has the advantages of fast encryption speed, easy to implement safe and reliable encryption of large amounts of data, easy to standardize design, and parallel computing, so it has been widely researched and applied in the field of information security. Common block cipher algorithms mainly include: SM4 algorithm, DES algorithm, 3DES algorithm, AES algorithm, IDES algorithm, etc. [0003] There are two main implementations of the block cipher algorithm: software implementation and hardware implementation. The software implementation...

AI Technical Summary

Problems solved by technology

However, due to the long period of modification and debugging of the hardware algorithm, it is easy to increase the project time cost when the application is frequently switched

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