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CODASPY
2012
13 years 6 months ago
2012
Access control is one of the most important security mechanisms in cloud computing. However, there has been little work that explores various comparison-based constraints for regu...
CCS
2009
ACM
15 years 5 months ago
2009
ACM
Formal analysis of security protocols based on symbolic models has been very successful in finding flaws in published protocols and proving protocols secure, using automated too...
ISPEC
2005
Springer
15 years 4 months ago
2005
Springer
Token-controlled public key encryption (TCPKE) schemes, introduced in [1], offer many possibilities of application in financial or legal scenarios. Roughly speaking, in a TCPKE s...
FC
2006
Springer
15 years 2 months ago
2006
Springer
In this paper, we present a broadcast encryption scheme with efficient transmission cost under the log-key restriction. Given n users and r revoked users, our scheme has the trans...
ECCC
2007
14 years 10 months ago
2007
In cryptography, there has been tremendous success in building primitives out of homomorphic semantically-secure encryption schemes, using homomorphic properties in a blackbox way...