Strong Anonymous Signature
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概要
- 論文の詳細を見る
The notion of anonymous signatures has recently been formalized by [18], which captures an interesting property that a digital signature can sometimes hide the identity of the signer, if the message is hidden from the verifier. However, in many practical applications, e.g., an anonymous paper review system mentioned in [18], the message for anonymous authentication is actually known to the verifier. This implies that the effectiveness of previous anonymous signatures may be unjustified in these applications. In this paper, we extend the previous models, and develop a related primitive called strong anonymous signatures. For strong anonymous signatures, the identity of the signer remains secret even if the challenge message is chosen by an adversary. We then demonstrate some efficient constructions and prove their security in our model.
- （社）電子情報通信学会の論文
- 2009-10-01
著者
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Zhang Rui
Research Center For Information Security (rcis) National Institute Of Advanced Industrial Science An
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Imai Hideki
Research Center For Information Security (rcis) National Institute Of Advanced Industrial Science &a
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Imai Hideki
Research Center For Information Security (rcis) National Institute Of Advanced Industrial Science An
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