公钥制RSA算法应用中要注意的几个问题  

Several Attentive Problems in the Application of RSA Public Key Algorithm

作　　者：何彩燕[1] 吴红[2] 

机构地区：[1]广东省国家税务局,广州510080 [2]中山大学科学计算与计算机应用系,广州510275

出　　处：《现代计算机》2004年第5期71-73,共3页Modern Computer

摘　　要：RSA算法是公钥密码系统的重要算法之一。本文通过研究RSA算法的特点,就其安全性问题提出了构造公钥/私钥对时应注意的几个问题:在公钥选择时要注意的盲区;当公钥/私钥对的选择使密文的幂指数低时会容易受攻击;一个团体使用公共模会造成不安全性;用户私钥丢失后应选用新的模来构造新的公钥/私钥对等等。RSA algorithm is one of the most important algorithms in public key cryptosystem. According to the characteristic of RSA algorithm, several attentive problems are discussed on security of creating a pair of public-key and private- key in RSA algorithm. More attention should be paid to some blind spots during choosing a public-key. Ciphertext will be easily decrypted in case of its low power. It is unsafe when public modular is used in a group. New modular should be chosen to create new public-key and private-key after old private-key being lost.

关 键 词：RSA算法 公钥密码 计算机安全 公钥制 

分 类 号：TN918.1[电子电信—通信与信息系统]