177 search results - page 20 / 36 » On the Security of Identity Based Ring Signcryption Schemes |
IJNSEC
2006
13 years 7 months ago
2006
It has always been a critical issue to find efficient methods for fast revocation of a user's identity in identity (ID)based cryptosystems. Unfortunately, none of the previou...
CJ
2006
13 years 7 months ago
2006
Anonymous channels or similar techniques that can achieve sender's anonymity play important roles in many applications. However, they will be meaningless if cryptographic prim...
CCS
2009
ACM
14 years 8 months ago
2009
ACM
Denial of Service (DoS) attacks are serious threats for network societies. For dealing with DoS attacks, Jakobsson and Juels first proposed the notion of useful client puzzles (UC...
ESAS
2004
Springer
14 years 28 days ago
2004
Springer
In this paper we describe the advantages of using iterative Diffie-Hellman (IDH) key trees for mobile ad-hoc group communication. We focus on the Treebased Group Diffie-Hellman (...
IACR
2011
12 years 7 months ago
2011
We present new candidates for quantum-resistant public-key cryptosystems based on the conjectured difficulty of finding isogenies between supersingular elliptic curves. The main t...