94 search results - page 2 / 19 » Proxy Re-signature Schemes Without Random Oracles |
IJNSEC
2011
13 years 16 days ago
2011
We first analyze the security of a short signature scheme without random oracles called ZCSM scheme and point out that it cannot support unforgeable under the chosen message and ...
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...
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...
INDOCRYPT
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. We introduce a new undeniable signature scheme which is existentially unforgeable and anonymous under chosen message attacks in the standard model. The scheme is an embed...
ISPEC
2009
Springer
14 years 10 days ago
2009
Springer
In this paper, we construct a strongly unforgeable ID-based signature scheme without random oracles.4 The signature size of our scheme is smaller than that of other schemes based o...