134 search results - page 16 / 27 » On the security of a convertible group signature scheme |
ICALP
2005
Springer
14 years 1 months ago
2005
Springer
We introduce the notion of hierarchical group signatures. This is a proper generalization of group signatures, which allows multiple group managers organized in a tree with the si...
CTRSA
2007
Springer
13 years 9 months ago
2007
Springer
Abstract. Known compact e-cash schemes are constructed from signature schemes with efficient protocols and verifiable random functions. In this paper, we introduce a different ap...
CRYPTO
2001
Springer
14 years 11 days ago
2001
Springer
Most public key cryptosystems have been constructed based on abelian groups up to now. We propose a new public key cryptosystem built on finite non abelian groups in this paper. I...
ACISP
2006
Springer
13 years 11 months ago
2006
Springer
The only known construction of identity-based signatures that can be proven secure in the standard model is based on the approach of attaching certificates to non-identity-based si...
ISW
2004
Springer
14 years 1 months ago
2004
Springer
Signcryption is a new cryptographic primitive that performs signing and encryption simultaneously, at a cost significantly lower than that required by the traditional signature-th...