The Research on Security of RSA Public-Key Cipher

At present RSA is one of the most important public-key cipher algorithms.The realization and the basic principle of it are described in the paper,in addition,the ways of attack and the security are also analyzed in detail.Some ways are given to prevent from attacking.In terms of the analysis of RSA'characteristic and current situation in cryptography,RSA will remain the position Which as one of encryption algorithms widely used in quite a long time.