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標題Title: Cryptanalysis of a Threshold Proxy Signature Scheme
作者Authors: 楊政達,孫宏民..等
上傳單位Department: 多媒體與電腦娛樂科學系
上傳時間Date: 2009-11-29
上傳者Author: 楊政達
審核單位Department: 多媒體與電腦娛樂科學系
審核老師Teacher: 楊政達
檔案類型Categories: 論文Thesis
關鍵詞Keyword: Proxy Signatures, Digital Signatures, Cryptanalysis, Cryptography, RSA
摘要Abstract: A (t, n) threshold proxy signature scheme allows t or more proxy signers out of a designated group of n proxy signers to sign messages on behalf of an original signer. Recently, Hwang et al. proposed a new (t, n) threshold proxy signature scheme based on the RSA cryptosystem. In this paper, we show that their scheme is insecure against the original signer’s forgery and the general forgery.

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2009_11_6703e6f8.pdf 529Kb pdf 614 153
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