A Forward Security RPAS
一种具有前向安全性的远程口令认证系统*

By using one-way function and forward security method in RPAS(Remote Password Authentication System),a new forward RPAS is presented.It can efficiently resist forge attack.What's more,the secret size is much smaller and the authentication rate is much higher.And the password space is less than other system based on ElGamal system,so it is more fit to IC card.