Title: Cryptanalysis of Two Multi-signature Schemes
Abstract: Based on in-depth study of the two multi-signature schemes,a forgery attack is proposed.In the first scheme,anyone of the signers could generate a valid multi-signature without others' participation,this shows that the scheme is not secure.In the second scheme,the designated combiner could acquire the secret key of each member and easily forge a valid threshold signature,this shows the scheme is not secure too.The reasons for successful attack are analyzed,thus providing an effective reference for the design of new secure schemes.
Publication Year: 2010
Publication Date: 2010-01-01
Language: en
Type: article
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Cited By Count: 1
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