An encryption and decryption hardware system and method based on RSA cryptographic algorithm

Abstract

The invention discloses an encryption and decryption hardware system based on RSA cryptographic algorithm, comprises an RSA main control module, a key generation module, an encryption control module,a decryption control module, a modulo exponentiation module, a modulo multiplication operation module and a large number multiplier module, wherein, the RSA main control module is used for calling theencryption control module and the decryption control module; The key generation module is used for generating a public key {e, N} and a private key {d, N} needed for encryption and decryption; The invention aims at the problems of large calculation amount, slow encryption and decryption operation speed and large area realized by hardware in the prior RSA hardware system, and under the condition of giving consideration to the hardware area and the realization speed, the improved Montgomery modular multiplication algorithm and the L-R modulo exponentiation algorithm are combined. The hardware system and the method of RSA encryption and decryption are designed, so the hardware system and the method can reduce the calculation amount in the process of RSA encryption and decryption, improve thespeed of RSA encryption and decryption, and reduce the area of the chip.

Description

technical field [0001] The invention relates to the technical field of RSA encryption algorithm, in particular to an encryption and decryption hardware system and method based on the RSA encryption algorithm. Background technique [0002] With the rapid development of computer and network technology, the information exchange between people presents a trend of internationalization, intelligence and broadband, and the requirements for network information security are also getting higher and higher. One of the cores of information security technology is cryptography technology. The security of traditional symmetric key encryption system can no longer meet the needs of today's information security. Modern cryptography believes that the authentication, integrity and non-repudiation of information, Commercial applications are even more important. In the asymmetric key system in the modern cryptographic system, two kinds of keys, public key and private key, are used, and its secur...

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to overcome the shortcomings and deficiencies of the prior art, and provide a hardware system and method for encryption and decryption based on the RSA cryptographic algorithm. The problem of slow decryption operation speed and large hardware implementation area is to improve the operation speed of RSA encryption and decryption hardware system and reduce hardware consumption

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