Cryptanalysis of an Elliptic Curve-based Signcryption Scheme

Details Cryptanalysis of an Elliptic Curve-based Signcryption Scheme Cryptanalysis of an Elliptic Curve-based Signcryption Scheme

2010-04-20

arxiv.org/abs/1004.3521v2

International Journal of Network Security, Vol. 10, No. 1, pp. 51-56, Jan. 2010

Computer Science

Cryptography and Security

6 Pages, 2 Figures

Scientific paper

The signcryption is a relatively new cryptographic technique that is supposed to fulfill the functionalities of encryption and digital signature in a single logical step. Although several signcryption schemes are proposed over the years, some of them are proved to have security problems. In this paper, the security of Han et al.'s signcryption scheme is analyzed, and it is proved that it has many security flaws and shortcomings. Several devastating attacks are also introduced to the mentioned scheme whereby it fails all the desired and essential security attributes of a signcryption scheme.

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