Research of Public Key Cryptosystem Based on Niederreiter Error Correcting Code

Over the past 20 years, the error correcting code has been successfully used in many error correcting code public key cryptosystem. This paper first studies the performance index of N public key cryptosystem and provides its simulative curve; then, through analyzing the security of N public-key cryptosystem, proposes a new method for attacking the N public-key cryptosystem; finally, this paper discusses the intrinsic relations between the M public key system and the N public key system, reveals the fact of security equivalent of between them, and gives performance comparison result of the M public-key and the N public-key cryptosystem.