Implement method of elliptic curve cipher system coprocessor

Abstract

A method for realizing coprocessor of oval curve cipher system includes dividing functions of complete coprocessor first and then detailing divided functions to be each bottom layer module in design, realizing each bottom layer module first and testing then separately then integrating them to be complete ECC coprocessor in realization. The 256 position universal coprocessor for solving point multiplication problem in ECC calculation is also disclosed.

Description

technical field [0001] The invention relates to a hardware coprocessor of a cryptographic system in information security, and relates to the technical field of public key cryptosystems. Background technique [0002] Public key cryptography: In 1976, Stanford University researchers Whitfield Diffie and Martin Hellman jointly developed a public key cryptography that can solve the problem of secure key exchange. Public-key cryptography is asymmetric and uses two keys that are inversely associated: a public key and a private key. The public key is freely disclosed, and the private key is kept secretly by the user. When a message is encrypted with a public key, only the corresponding private key can decrypt it, and vice versa. Both parties in the communication have their own public key and private key. To send a message securely, the sender encrypts the message with the receiver's public key; after receiving the message, the receiver decrypts it with its own private key. Beca...

AI Technical Summary

Problems solved by technology

[0013] Security is the key factor of any cryptographic system. At present, the security analysis of ECC has not yielded fruitful results, and no effective attack method has been found. It is generally believed that its time complexity is exponential. Therefore, for ECC, as long as an appropriate The parameters of the security domain, the existing attack methods are difficult to break it

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