876 search results - page 4 / 176 » Limits on the Usefulness of Random Oracles |
CTRSA
2006
Springer
14 years 2 months ago
2006
Springer
Abstract. We present a non-interactive chosen ciphertext secure threshold encryption system. The proof of security is set in the standard model and does not use random oracles. Our...
TDHMS
2008
13 years 8 months ago
2008
In this paper, well-known attacks named oracle attacks are formulated within a realistic network communication model where they reveal to use suitable covert channels, we name orac...
ASIACRYPT
2007
Springer
14 years 4 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...
ICICS
2007
Springer
14 years 4 months ago
2007
Springer
We propose a convertible undeniable signature scheme without random oracles. Our construction is based on the Waters signatures proposed in Eurocrypt 2005. The security of our sche...
CCS
2006
ACM
14 years 2 months ago
2006
ACM
Since the formalization of ring signature by Rivest, Shamir and Tauman in 2001, there are lots of variations appeared in the literature. Almost all of the variations rely on the ra...