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ACNS
2006
Springer
112views Cryptology» more  ACNS 2006»
14 years 1 months ago
Password Based Server Aided Key Exchange
We propose a new password-based 3-party protocol with a formal security proof in the standard model. Under reasonable assumptions we show that our new protocol is more efficient t...
Yvonne Cliff, Yiu Shing Terry Tin, Colin Boyd
ASIACRYPT
2011
Springer
12 years 7 months ago
Short Signatures from Weaker Assumptions
We provide constructions of (m, 1)-programmable hash functions (PHFs) for m ≥ 2. Mimicking certain programmability properties of random oracles, PHFs can, e.g., be plugged into ...
Dennis Hofheinz, Tibor Jager, Eike Kiltz
ACISP
2010
Springer
13 years 9 months ago
Attribute-Based Authenticated Key Exchange
We introduce the concept of attribute-based authenticated key exchange (AB-AKE) within the framework of ciphertext policy attribute-based systems. A notion of AKE-security for AB-A...
M. Choudary Gorantla, Colin Boyd, Juan Manuel Gonz...
SACRYPT
1998
Springer
13 years 11 months ago
Computational Alternatives to Random Number Generators
In this paper, we present a simple method for generating random-based signatures when random number generators are either unavailable or of suspected quality (malicious or accident...
David M'Raïhi, David Naccache, David Pointche...
TC
2008
13 years 7 months ago
On the Computational Security of a Distributed Key Distribution Scheme
In a distributed key distribution scheme, a set of servers help a set of users in a group to securely obtain a common key. Security means that an adversary who corrupts some server...
Vanesa Daza, Javier Herranz, Germán S&aacut...