基于两个假设的公开钥密码体制

A Public key Cryptosystem Based on Two Cryptographic Assumptions

基于若要同时分解因子和计算离散对数几乎是不可能的假设，介绍了构成公开钥密码体制的原理和方法，从而增强了安全性。与Ｋ·Ｓ·ＭｃＣｕｒｌｅｙ首次提出的两个假设的公开钥体制相比，本方案的两个密钥参数大小相同。

On the assumption that simultaneous solutions of factoring and discret logarithm are very unlikely,this paper presents the principle and method of a public key cryptosystem,which could be used to improve security.Compared with the key distribution system,based on the two assumptions proposed initially by K.S.McCurley,the security parameters in our system are identically sized and therefore obtain higher efficiency of implementation.