Instruction-based large-number point addition and point multiplication operation circuit and realization method

Abstract

The invention discloses an instruction-based large-number point addition and point multiplication operation circuit, which comprises a basic operation circuit of a finite field operation layer, an operation command operation code register, an operand address register and an operation result address register, wherein the basic operation circuit carries out basic operation on an operand corresponding to an operand address stored in the operand address register according to an operation command operation code and an operation sequence stored in the operation command operation code register, and stores an operation result into an operation result address stored in the operation result address register. The invention also provides a realization method of the instruction-based large-number point addition and point multiplication operation circuit. The problem of the ordered calling of the finite field operation layer in a point addition and point multiplication operation process is solved, and the instruction-based large-number point addition and point multiplication operation circuit is simple in structure, is configurable in operation sequence and is convenient in upgrading an algorithm.

Description

technical field [0001] The invention relates to the technical field of microelectronics, in particular to an instruction-based large number point addition and multiplication operation circuit and a realization method. Background technique [0002] At present, the asymmetric cryptographic algorithm ECC (Elliptic Curve Cryptography) based on the elliptic curve discrete logarithm problem on finite fields is recognized as the public key cryptosystem with the highest bit strength, and is widely used in fast encryption, key exchange, identity verification, digital signature , secure communications and other fields. [0003] The SM2 elliptic curve public key cryptography algorithm is one of the ECC algorithms, with an encryption strength of 256 bits, high security, small storage space, and can quickly complete signature, key exchange, and encryption applications. [0004] The operation logic related to SM2 can be regarded as an independent unit for design, and can be divided into ...

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Problems solved by technology

[0016] In order to overcome the deficiencies in the prior art, the present invention provides an instruction-based large number point addition and doubling operation circuit and its implementation method to

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