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ISW
2004
Springer

Security Analysis of Two Signcryption Schemes

10 years 1 months ago
Security Analysis of Two Signcryption Schemes
Signcryption is a new cryptographic primitive that performs signing and encryption simultaneously, at a cost significantly lower than that required by the traditional signature-then-encryption approach. In this paper, we present a security analysis of two such schemes: the HuangChang convertible signcryption scheme [12], and the Kwak-Moon group signcryption scheme [13]. Our results show that both schemes are insecure. Specifically, the Huang-Chang scheme fails to provide confidentiality, while the Kwak-Moon scheme does not satisfy the properties of unforgeability, coalition-resistance, and traceability.
Guilin Wang, Robert H. Deng, Dong Jin Kwak, Sang-J
Added 02 Jul 2010
Updated 02 Jul 2010
Type Conference
Year 2004
Where ISW
Authors Guilin Wang, Robert H. Deng, Dong Jin Kwak, Sang-Jae Moon
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