57 search results - page 2 / 12 » Fine-grained forward-secure signature schemes without random... |
PROVSEC
2007
Springer
13 years 11 months ago
2007
Springer
We propose a secure threshold signature scheme without trusted dealer. Our construction is based on the recently proposed signature scheme of Waters in EUROCRYPT’05. The new thre...
EUROCRYPT
2012
Springer
11 years 7 months ago
2012
Springer
We provide an alternative method for constructing lattice-based digital signatures which does not use the “hash-and-sign” methodology of Gentry, Peikert, and Vaikuntanathan (ST...
CISC
2007
Springer
13 years 9 months ago
2007
Springer
Abstract. In this paper, we propose a signcryption scheme which provides all the following properties at the same time. (1) forward security: the private key of a sender does not h...
EUROCRYPT
2006
Springer
13 years 9 months ago
2006
Springer
We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...
ASIACRYPT
2007
Springer
13 years 11 months ago
2007
Springer
We construct a new group signature scheme using bilinear groups. The group signature scheme is practical, both keys and group signatures consist of a constant number of group elem...