In this paper we present a forward-secure group signature scheme based on conic curve over ring Zn. Our scheme with forward security has effectively mitigated the damage caused by key exposure, and we use the dynamic accumulators on the conic curve to remove members. The security of the scheme is based on the difficulty of integer factorization and calculating the discrete logarithm on conic curve over the ring Zn. The scheme on conic curve has some advantages as follow: Plaintext embedding is convenient, and the speed of computing inverse element is fast, and element order calculation and the point operation on curve are more easily, etc. Therefore it is easier to accomplish.

Date Published: 4 March 2013
PDF: 7 pages
Proc. SPIE 8768, International Conference on Graphic and Image Processing (ICGIP 2012), 876855 (4 March 2013); doi: 10.1117/12.2011871

Published in SPIE Proceedings Vol. 8768:
International Conference on Graphic and Image Processing (ICGIP 2012)
Zeng Zhu, Editor(s)