| 可防止合谋攻击的门限RSA签名体制 |
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| 引用本文： | 吴铤. 可防止合谋攻击的门限RSA签名体制[J]. 山东大学学报(理学版), 2002, 37(5): 404-407,411 |
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| 作者姓名： | 吴铤 |
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| 作者单位： | 山东大学数学与系统科学学院,济南,250100 |
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| 摘 要： | 提出了一种新的RSA门限答体制,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,因此克服了合谋攻击的问题。
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| 关 键 词： | 门限RSA签名体制 秘密共享 门限方案 数字签名 合谋攻击 网络安全 |
| 文章编号： | 1671-9352(2002)05-0404-04 |
A Threshold RSA Signature Scheme without Conspiracy Attack |
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| WU Ting. A Threshold RSA Signature Scheme without Conspiracy Attack[J]. Journal of Shandong University, 2002, 37(5): 404-407,411 |
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| Authors: | WU Ting |
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| Abstract: | 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. |
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| Keywords: | secret sharing threshold scheme RSA digital signature conspiracy attack |
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