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PKC
2009
Springer
16 years 11 days ago
2009
Springer
In this work, we consider the task of allowing a content provider to enforce complex access control policies on oblivious protocols conducted with anonymous users. As our primary ...
ACISP
2009
Springer
15 years 6 months ago
2009
Springer
In the setting of identity-based encryption with multiple trusted authorities, TA anonymity formally models the inability of an adversary to distinguish two ciphertexts correspondi...
ICWS
2004
IEEE
15 years 1 months ago
2004
IEEE
Preserving privacy during Web transactions is a major concern for individuals and organizations. One of the solutions proposed in the literature is to maintain anonymity through gr...
EUROCRYPT
2009
Springer
16 years 12 days ago
2009
Springer
Currently, there are relatively few instances of "hash-and-sign" signatures in the standard model. Moreover, most current instances rely on strong and less studied assum...
EUROCRYPT
1998
Springer
15 years 4 months ago
1998
Springer
Abstract. Provable security is a very nice property for cryptographic protocols. Unfortunately, in many cases, this is at the cost of a considerable loss in terms of efficiency. Mo...