Processor architecture for directly executing encrypted instruction based on fixed decryption algorithm

Abstract

The invention discloses a processor architecture for directly executing an encrypted instruction based on a fixed decryption algorithm, and belongs to the technical field of integrated circuits, microprocessors and information security. An instruction reading module is connected with an instruction decryption module; the instruction decryption module is connected with an instruction decoding module; the instruction decoding module is connected with an instruction execution module; the instruction decryption module comprises a decryption module group, a decryption password, a password instruction, a module selection code and a plain code instruction; and the decryption password, the password instruction, the module selection code and the plain code instruction are connected with the decryption module group. The function of directly executing the encrypted instruction by the processor is realized and the security of the instruction execution level of the processor is achieved; and program security, data security, communication security, execution security, virus prevention, intellectual property protection and the like can be realized.

Description

Technical field [0001] The present invention relates to the technical fields of integrated circuits, microprocessors and information security, in particular to a processor architecture that directly executes encrypted instructions with a fixed decryption algorithm. Background technique [0002] In order to facilitate reading and understanding, the relevant vocabulary is defined as follows: machine code refers to the binary code of instructions that the processor can directly execute; undefined machine code refers to the binary code not included in the processor instruction system; instructions refer to the processor execution machine The operation that can be realized by the code, the instruction corresponds to the machine code; the encrypted machine code refers to the encrypted machine code; the encrypted executable program refers to the encrypted executable program; the password instruction refers to the encrypted instruction; the clear code Instructions refer to instructions t...

AI Technical Summary

Problems solved by technology

[0005] To sum up, under the current processor architecture, the information security system mainly adopts measures such as licenses, passwords, and software encryption. All security mechanisms do not involve the security of the processor’s execution instruction level. Based on the security of the processor itself, the research content focuses on communication security, data security, etc. outside the processor.

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