【摘要】 RSA的安全基于大数分解的难度,其公开密钥和私人密钥是一对大素数的函数,从一个公开密钥和密文中恢复出明文的难度等价于分解两个大素数之积。电子商务的实现需要多种理论与技术的完美支持,其中,密码技术占有极其重要的位置。网络是开展电子商务的基础,网络的安全性直接关系到电子交易的安全性。这里主要通过对电子商务安全隐患的分析,论证了数据加密技术在电子商务安全中的作用,重点探讨了RSA公钥加密算法。并通过实例对其加密原理、计算复杂性等安全性问题做了详细的分析和阐述。更多还原

【Abstract】 Security of RSA is based on the difficulty in resolving a big number.The public key and the secret key are functions of a pair of big prime numbers.The difficulty in converting the cipher text into the plaintext through the public key equals to that of resolving the product of two big prime numbers.The realization of ECommerce needs perfect combination and strong support of so many kinds of theory & technology.And encryption plays a very important role in it.The security of payment is important to electronic commerce.Network is the base of electronic,the security of network is directly related to electronic commerce.In this thesis,the position of the data encryption technology in the security of electronic commerce has been demonstrated according to the analysis of the security of electronic commerce,and then the public key encryption algorithm RSA,including encryption theory and calculative complexity,has been discussed in detail on the basis of some examples.更多还原