一种改进的RSA公钥密码体制

An improved RSA public-key cryptosystem

RSA公钥密码体制是一种被广泛使用的公钥密码体制.它具有很多优点,但在实际应用中却容易产生对明文信息的积累,并且在明文长度较长时,加解密效率较低.针对传统RSA公钥密码体制在安全性及加解密效率上存在的这些缺陷,提出了一种改进的RSA公钥密码体制.改进后的体制具有多项式安全性,降低了破译者进行信息积累的可能性;同时在加解密的效率上也有所提高.

RSA public-key cryptosystem is one of the widely used public-key cryptosystems. It has a lot of advantages, but in the application, it is easy to accumulate the message of plaintext, and the efficiency of encrypting or decrypting is low when the length of plaintext is long. An improved RSA public-key cryptosystem is presented for solving these problems. The improved scheme is secure for polynomial, and it is not easy for attacker to accumulate the message of plaintext. At the same time, there is an improvement in the efficiency of encrypting or decrypting.