| Affiliation: | (1) School of Computer, Wuhan University of Technology, 430070 Wuhan, Hubei, China;(2) School of Computer, Wuhan University, 430072 Wuhan, Hubei, China |
| Abstract: | This paper reviews the basic content of key management, points out the limitation of the existing key agreement protocols. It introduces RSA public key cryptosystems in detail and homomorphie encryption scheme in the integer ring. The homomorphism key agreement based on RSA is presented. Compared with Diffie-Hellman protocol, its operation speed is more quickly; Compared with key agreement protocol based on password, it has better security. The protocol can use the public key of RSA to create the contributory, forward secrecy the session key. Finally, the security of the protocol is proved by BAN logic. |
