Cryptanalysis of a Completely Anonymous Multi-recipient Signcryption Scheme with Public Verification

张波; 孙涛; 于代荣

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Cryptanalysis of a Completely Anonymous Multi-recipient Signcryption Scheme with Public Verification

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摘要

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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《东华大学学报：英文版》 |2015年第2期|240-243|共4页
作者
张波; 孙涛; 于代荣;
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作者单位

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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原文格式 PDF
正文语种 chi
中图分类安全保密;
关键词
multi-recipient signcryption; anonymity; cryptanalysis; identity based cryptography;

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Cryptanalysis of a Completely Anonymous Multi-recipient Signcryption Scheme with Public Verification

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