61 search results - page 5 / 13 » Repairing Efficient Threshold Group Signature Scheme |
ASIACRYPT
2004
Springer
13 years 11 months ago
2004
Springer
Group signature schemes are cryptographic systems that provide revocable anonymity for signers. We propose a group signature scheme with constant-size public key and signature leng...
ASIACRYPT
2003
Springer
13 years 11 months ago
2003
Springer
Abstract. Group signature schemes are fundamental cryptographic tools that enable unlinkably anonymous authentication, in the same fashion that digital signatures provide the basis...
EUROCRYPT
2003
Springer
14 years 1 months ago
2003
Springer
A variant of Schnorr’s signature scheme called RDSA has been proposed by I. Biehl, J. Buchmann, S. Hamdy and A. Meyer in order to be used in finite abelian groups of unknown ord...
EUROCRYPT
2006
Springer
13 years 11 months ago
2006
Springer
We present the first efficient group signature scheme that is provably secure without random oracles. We achieve this result by combining provably secure hierarchical signatures i...
INFORMATICALT
2010
13 years 6 months ago
2010
Abstract. Delegation of rights is a common practice in the real world. We present two identitybased threshold proxy signature schemes, which allow an original signer to delegate he...