摘要
提出了一种新的RSA门限签名体制 ,具有如下性质 :不同组合的成员所产生的签名均能通过同一验证方程 ,但所得的签名是各不相同的 ,从而可以对签名者的身份进行追踪 。
The ordinary threshold signature scheme would be broken if any t or more group members conspire together with each other.Based on RSA and EIGamal signature scheme,a new threshold RSA signature scheme is prompted here.In this scheme,any t members can cooperate to generate a valid group signature on behalf of the group and one verifier is sufficient to verify a given signature with the public keys.Meanwhile,the verifier can not reveal the signatures' identities.However,in exceptional cases such as a legal dispute any group signature can be 'opened'by the trusted center to reveal unambiguously the identities of the actual signers.
出处
《山东大学学报（理学版）》
CAS
CSCD
北大核心
2002年第5期404-407,411,共5页
Journal of Shandong University(Natural Science)
