首页> 外文会议>International Conference on Cryptology in India(INDOCRYPT 2005); 20051210-12; Bangalore(IN) >Short Undeniable Signatures Without Random Oracles: The Missing Link
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Short Undeniable Signatures Without Random Oracles: The Missing Link

机译:没有随机Oracle的简短不可否认的签名:缺少的链接

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摘要

We introduce a new undeniable signature scheme which is existentially unforgeable and anonymous under chosen message attacks in the standard model. The scheme is an embedding of Boneh and Boyen's recent short signature scheme in a group where the decisional Diffie-Hellman problem is assumed to be difficult. The anonymity of our scheme relies on a decisional variant of the strong Diffie-Hellman assumption, while its unforgeability relies on the strong Diffie-Hellman assumption.
机译:我们引入了一种新的不可否认的签名方案,该方案在标准模型中的选定消息攻击下是不可伪造的且匿名的。该方案是Boneh和Boyen最近的短签名方案的嵌入,该组假定决策Diffie-Hellman问题很困难。我们方案的匿名性取决于强Diffie-Hellman假设的决策变体,而其不可伪造性则取决于强Diffie-Hellman假设。

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