A dynamically adjustable SM4 pipeline hardware system

Abstract

This application relates to a dynamically adjustable SM4 pipeline hardware system. The system includes: a dynamic monitoring module for receiving key and mode selection configuration information from the user, monitoring the operating frequency and actual throughput of the computer system circuit in real time based on the key and mode selection configuration information, selecting initial pipeline stage information based on frequency detection information, and dynamically adjusting the initial pipeline stage information according to the actual throughput before passing it to the encryption / decryption module; a round key generation module for generating 32 round keys based on the mode selection configuration information and the SM4 algorithm, and passing the 32 round keys to the encryption / decryption module; and an encryption / decryption module for dynamically adjusting the internal pipeline based on the dynamically adjusted pipeline stage information and a multiplexer, and performing encryption / decryption processing on plaintext or ciphertext data according to the 32 round keys. This method can improve the versatility of SM4 encryption / decryption chips.

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