Cryptanalysis of a Completely Anonymous Multi-recipient Signcryption Scheme with Public Verification
Bo Zhang, Tao Sun Tycus Tse, 于代荣 · 东华大学学报：英文版 · 2015
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.