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» The Safe-Tcl Security Model
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ICALP
2005
Springer
16 years 1 months ago
Hierarchical Group Signatures
We introduce the notion of hierarchical group signatures. This is a proper generalization of group signatures, which allows multiple group managers organized in a tree with the si...
Mårten Trolin, Douglas Wikström
ISW
2005
Springer
16 years 1 months ago
An Oblivious Transfer Protocol with Log-Squared Communication
Abstract. We propose a one-round 1-out-of-n computationally-private information retrieval protocol for -bit strings with low-degree polylogarithmic receivercomputation, linear send...
Helger Lipmaa
239
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PET
2005
Springer
16 years 1 months ago
An Analysis of Parallel Mixing with Attacker-Controlled Inputs
Parallel mixing [7] is a technique for optimizing the latency of a synchronous re-encryption mix network. We analyze the anonymity of this technique when an adversary can learn the...
Nikita Borisov
WCC
2005
Springer
123views Cryptology» more  WCC 2005»
16 years 1 months ago
RSA-Based Secret Handshakes
A secret handshake mechanism allows two entities, members of a same group, to authenticate each other secretly. This primitive was introduced recently by Balfanz, Durfee, Shankar, ...
Damien Vergnaud
TCC
2004
Springer
100views Cryptology» more  TCC 2004»
16 years 28 days ago
On the Random-Oracle Methodology as Applied to Length-Restricted Signature Schemes
In earlier work, we described a “pathological” example of a signature scheme that is secure in the Random Oracle Model, but for which no secure implementation exists. For that...
Ran Canetti, Oded Goldreich, Shai Halevi