Cryptanalysis of a Completely Anonymous Multi-recipient Signcryption Scheme with Public Verification |
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| Authors: | ZHANG Bo;SUN Tao;YU Dai-rong |
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| Institution: | ZHANG Bo;SUN Tao;YU Dai-rong;School of Information Science and Engineering,University of Jinan;Shandong Provincial Key Laboratory of Network Based Intelligent Computing;Shandong Provincial Key Laboratory of Software Engineering; |
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| Abstract: | Anonymity is a very important security objective in network communications.Recently,Pang et al.proposed a novel multirecipient signcryption scheme with complete anonymity and claimed that the new concrete scheme was strong existential unforgeability under selective multi-ID,chosen message attack.Unfortunately,by giving concrete attacks,named " inside attack" and " outside attack" respectively,we indicate that Pang et al.'s scheme is not secure in their security model. |
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