68 search results - page 5 / 14 » On Extended Sanitizable Signature Schemes |
CRYPTO
2006
Springer
13 years 11 months ago
2006
Springer
We build concurrently executable blind signatures schemes in the common reference string model, based on general complexity assumptions, and with optimal round complexity. Namely, ...
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...
CCS
2001
ACM
14 years 4 days ago
2001
ACM
A group signature scheme allows a group member to sign messages anonymously on behalf of the group, while in case of a dispute, a designated entity can reveal the identity of a si...
ASIACRYPT
2009
Springer
14 years 2 months ago
2009
Springer
A universally composable (UC) blind signature functionality requres users to commit to the message to be blindly signed. It is thereby impossible to realize in the plain model. Th...
CTRSA
2006
Springer
13 years 11 months ago
2006
Springer
Abstract. In this paper, we first demonstrate a gap between the security of verifiably committed signatures in the two-party setting and the security of verifiably committed signat...