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摘要


Recently Lee-Chang proposed a new strong designated verifier signature scheme. They claimed that their proposed scheme is more secure and suitable for the purpose of a strong designated verifier signature scheme. This paper shows that Lee-Chang scheme cannot withstand forgery attack which an adversary can forge a signature without knowing the secret key of the signer or the designated verifier and an improved scheme is presented to overcome the security weaknesses of their scheme. The security of the scheme is enhanced by adding the secret key of the signer in signature generation phase. The analysis shows that the new scheme resolves security problems in the previous scheme, meets the aspects of security feathers needed by strong designated verifier signature scheme.

被引用紀錄


王繼正(2010)。綠色創新對塑膠回收再利用產業的影響~以台灣地區PET寶特瓶回收再利用為例~〔碩士論文,大同大學〕。華藝線上圖書館。https://www.airitilibrary.com/Article/Detail?DocID=U0081-3001201315110510

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