405 search results - page 29 / 81 » Practice-Oriented Provable Security |
CSFW
2011
IEEE
12 years 7 months ago
2011
IEEE
Abstract—Audit mechanisms are essential for privacy protection in permissive access control regimes, such as in hospitals where denying legitimate access requests can adversely a...
CCS
1997
ACM
13 years 11 months ago
1997
ACM
In this paper, we address the following problem: \ Is it possible to weaken/attack a scheme when a (provably) secure cryptosystem is used? ". The answer is yes. We exploit we...
IJNSEC
2010
13 years 2 months ago
2010
Recently, design of Identity-based (ID-based) threshold signature schemes which are efficient and provably secure in the standard model has drawn great concerns. In this paper, an...
IJNSEC
2006
13 years 7 months ago
2006
A directed signature scheme allows a designated verifier to directly verify a signature issued to him, and a third party to check the signature validity with the help of the signe...
CTRSA
2011
Springer
12 years 11 months ago
2011
Springer
Abstract. Online ciphers are deterministic length-preserving permutations EK : ({0, 1}n )+ → ({0, 1}n )+ where the i-th block of ciphertext depends only on the first i blocks of...