Title

Security Analysis of Two Signcryption Schemes

Publication Type

Conference Proceeding Article

Publication Date

9-2004

Abstract

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 Huang-Chang 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.

Discipline

Information Security

Research Areas

Cybersecurity

Publication

Information Security: 7th International Conference, ISC 2004, Palo Alto, CA, September 27-29, 2004: Proceedings

Volume

3225

First Page

123

Last Page

133

ISBN

9783540232087

Identifier

10.1007/978-3-540-30144-8_11

Publisher

Springer Verlag

City or Country

Berlin

Additional URL

http://dx.doi.org/10.1007/978-3-540-30144-8_11