Information safety coprocessor for performing relevant operation by using specific instruction set

Abstract

The invention provides an information safety coprocessor for performing relevant operation by using a specific instruction set. The information safety coprocessor comprises a plurality of register files, an instruction processing unit, an operation unit, a direct memory access (DMA) engine, a local memory, a key memory and a context memory. The specific instruction set comprises a cryptographic algorithm execution instruction, a context operation instruction, a key access instruction, a data transmission instruction, a logical operation instruction and a register write instruction. Therefore, the information safety coprocessor has the advantages of function flexibility, low cost, high performance, multitask support and usability, and can meet complicated multifunction and multitask requirements with low cost.

Description

technical field [0001] The invention relates to the field of information security processing, in particular to an information security co-processor used in an integrated circuit system to perform related operations through a specific instruction set. Background technique [0002] In the current digital information age, the security of information and data has become particularly important. Information security has become an active and important research field at present. Many security schemes and cryptographic algorithms have emerged as the times require, and related standards continue to develop, such as AES, RC4 and other algorithm standards. [0003] Traditional security solutions based on encryption technology are implemented through software. With the development of embedded technology and integrated circuit technology, solutions based on or using hardware provide many features superior to pure software solutions, such as security and processing speed; on the other ha...

AI Technical Summary

Problems solved by technology

However, advanced security schemes often require the use of several cryptographic algorithms. Therefore, a coprocessor with a single function is not suitable for implementing complex schemes. Moreover, applications on embedded systems are becoming more and more complex (such as smart phones), and rich Applications and multitasking also make it impossible for a single-function coprocessor to suffice

There is also another complex coprocessor that has an independent microprocessor and a complete secure execution environment, which has advantages in security and flexibility, but is not good in performance, cost and ease of use

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