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CRYPTO
2009
Springer
14 years 2 months ago
2009
Springer
We construct an efficient delegatable anonymous credentials system. Users can anonymously and unlinkably obtain credentials from any authority, delegate their credentials to other ...
CRYPTO
2009
Springer
14 years 2 months ago
2009
Springer
Collusion-free protocols prevent subliminal communication (i.e., covert channels) between parties running the protocol. In the standard communication model, if one-way functions ex...
AFRICACRYPT
2008
Springer
14 years 2 months ago
2008
Springer
In this paper, we investigate the security of the Tractable Rationale Maps Signature (TRMS) signature scheme [9] proposed at PKC’05. To do so, we present a hybrid approach for so...
CTRSA
2007
Springer
14 years 2 months ago
2007
Springer
This paper announces a new software side-channel attack — enabled by the branch prediction capability common to all modern highperformance CPUs. The penalty paid (extra clock cyc...
ASIACRYPT
2005
Springer
14 years 1 months ago
2005
Springer
We introduce a new cryptographic primitive called the blind coupon mechanism (BCM). In effect, the BCM is an authenticated bit commitment scheme, which is AND-homomorphic. It has n...