324 search results - page 33 / 65 » A new signature scheme without random oracles |
PKC
1998
Springer
14 years 21 days ago
1998
Springer
The ElGamal encryption scheme has been proposed several years ago and is one of the few probabilistic encryption schemes. However, its security has never been concretely proven bas...
DRM
2003
Springer
14 years 1 months ago
2003
Springer
In PODC 2003, Park, Chong, Siegel and Ray [22] proposed an optimistic protocol for fair exchange, based on RSA signatures. We show that their protocol is totally breakable already...
CRYPTO
2010
Springer
13 years 9 months ago
2010
Springer
We present a technique for delegating a short lattice basis that has the advantage of keeping the lattice dimension unchanged upon delegation. Building on this result, we construct...
CTRSA
2004
Springer
14 years 1 months ago
2004
Springer
Abstract. In this paper, we give a first example of identity based undeniable signature using pairings over elliptic curves. We extend to the identity based setting the security m...
ACNS
2005
Springer
14 years 2 months ago
2005
Springer
This paper presents a first example of secure identity based encryption scheme (IBE) without redundancy in the sense of Phan and Pointcheval. This modification of the Boneh-Frank...