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» (Convertible) Undeniable Signatures Without Random Oracles
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ESORICS
2012
Springer
11 years 11 months ago
Unique Group Signatures
We initiate the study of unique group signature such that signatures of the same message by the same user will always have a large common component (i.e., unique identifier). It ...
Matthew K. Franklin, Haibin Zhang
PKC
2012
Springer
235views Cryptology» more  PKC 2012»
11 years 11 months ago
Improved Security for Linearly Homomorphic Signatures: A Generic Framework
ded abstract of this work will appear in Public Key Cryptography — PKC 2012. This is the full version. We propose a general framework that converts (ordinary) signature schemes ...
David Mandell Freeman
CRYPTO
2001
Springer
97views Cryptology» more  CRYPTO 2001»
14 years 1 months ago
Two-Party Generation of DSA Signatures
d Abstract) Philip MacKenzie and Michael K. Reiter Bell Labs, Lucent Technologies, Murray Hill, NJ, USA We describe a means of sharing the DSA signature function, so that two parti...
Philip D. MacKenzie, Michael K. Reiter
ASIACRYPT
2011
Springer
12 years 8 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
CRYPTO
2005
Springer
144views Cryptology» more  CRYPTO 2005»
14 years 2 months ago
Analysis of Random Oracle Instantiation Scenarios for OAEP and Other Practical Schemes
We investigate several previously suggested scenarios of instantiating random oracles (ROs) with “realizable” primitives in cryptographic schemes. As candidates for such “in...
Alexandra Boldyreva, Marc Fischlin