Sciweavers

ASIACRYPT
2006
Springer

New Approach for Selectively Convertible Undeniable Signature Schemes

13 years 10 months ago
New Approach for Selectively Convertible Undeniable Signature Schemes
In this paper, we propose a new approach for constructing selectively convertible undeniable signature schemes, and present two efficient schemes based on RSA. Our approach allows a more direct selective conversion than the previous schemes, and the security can be proved formally. Further, our disavowal protocols do not require parallelization techniques to reach a significant soundness probability. Also, our second scheme is the first selectively convertible scheme which is provably secure without random oracles. Keywords. undeniable signature, selective conversion, RSA
Kaoru Kurosawa, Tsuyoshi Takagi
Added 20 Aug 2010
Updated 20 Aug 2010
Type Conference
Year 2006
Where ASIACRYPT
Authors Kaoru Kurosawa, Tsuyoshi Takagi
Comments (0)