179 search results - page 8 / 36 » On the Security of Some Proxy Blind Signature Schemes |
ATC
2007
Springer
14 years 1 months ago
2007
Springer
A proxy signature scheme allows an entity to delegate its signing capability to another entity (proxy) in such a way that the proxy can sign messages on behalf of the delegator. Pr...
PKC
2012
Springer
11 years 10 months ago
2012
Springer
We revisit the deļ¬nition of unforgeability of blind signatures as proposed by Pointcheval and Stern (Journal of Cryptology 2000). Surprisingly, we show that this established deļ¬...
EUROCRYPT
2010
Springer
13 years 7 months ago
2010
Springer
We investigate the possibility to prove security of the well-known blind signature schemes by Chaum, and by Pointcheval and Stern in the standard model, i.e., without random oracle...
EUROCRYPT
1998
Springer
13 years 11 months ago
1998
Springer
Abstract. First, we introduce the notion of divertibility as a protocol property as opposed to the existing notion as a language property (see Okamoto, Ohta [OO90]). We give a defi...
IJNSEC
2007
13 years 7 months ago
2007
In 2001, Rivest et al. rstly introduced the concept of ring signatures. A ring signature is a simpli ed group signature without any manager. It protects the anonymity of a signer....