37 search results - page 2 / 8 » Certificateless undeniable signature scheme |
SCN
2010
Springer
13 years 3 months ago
2010
Springer
Abstract. This paper shows some efficient and provably-secure convertible undeniable signature schemes (with both selective conversion and all conversion), in the standard model an...
IJNSEC
2008
13 years 4 months ago
2008
Recently non-abelian groups have attracted the attention of cryptographers for constructing public-key cryptographic protocols. In this paper we use the conjugacy problem in non-a...
ICICS
2007
Springer
13 years 11 months ago
2007
Springer
We propose a convertible undeniable signature scheme without random oracles. Our construction is based on the Waters signatures proposed in Eurocrypt 2005. The security of our sche...
CTRSA
2005
Springer
13 years 10 months ago
2005
Springer
Undeniable signatures were introduced in 1989 by Chaum and van Antwerpen to limit the self-authenticating property of digital signatures. An extended concept – the convertible un...
INFORMATICALT
2010
13 years 2 months ago
2010
A proxy signature scheme enables an original signer to delegate its signing capability to a proxy signer and then the proxy signer can sign a message on behalf of the original sign...