在标准模型下证明其能抵抗签名伪造攻击，且具有无条件匿名性。
It is proved to be unforgeable in the standard model, and is unconditionally anonymous.
但通过研究发现，有的环认证加密方案不具有环签名的无条件匿名性的性质。
This paper found that the scheme didn t have the unconditional anonymity characteristic being including in a ring signature, so improved it.
分析显示此两个方案均能抵抗任何(包括KGC)伪造攻击，且都满足签名者的无条件匿名性。
Analysis results show the two schemes can resist forgery attacks and conspired attacks (including KGC), and can meet with the requirements of unconditional anonymity of signers.
应用推荐