forward secrecy sign-cryption scheme based on elliptic curve cryptosystem 前向安全的基于橢圓曲線密碼體制的簽密方案
the main results of this thesis are as follows : 1 . based on the thoughts of " diffie-hellman decision problem " and anonymous signature, an unconditionally anonymous sign-cryption algorithm is proposed and its security proof is given 研究成果體現(xiàn)在如下幾個方面:(1)目前的簽密算法要求簽密人的身份是公開的,作者利用無條件匿名簽名的思想,給出了一個無條件匿名的簽密算法,并給出了相應(yīng)的安全性證明。