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ACNS
2007
Springer
165views Cryptology» more  ACNS 2007»
13 years 11 months ago
Tweaking TBE/IBE to PKE Transforms with Chameleon Hash Functions
We present two transforms to acquire chosen ciphertext security from tag based techniques. The first one requires the separability of underlying primitives. By separability, info...
Rui Zhang 0002
EUROPKI
2008
Springer
13 years 6 months ago
Efficient Generic Forward-Secure Signatures and Proxy Signatures
We propose a generic method to construct forward-secure signature schemes from standard signature schemes. The proposed construction is more computationally efficient than previous...
Basel Alomair, Krishna Sampigethaya, Radha Poovend...
PKC
2009
Springer
166views Cryptology» more  PKC 2009»
14 years 5 months ago
Security of Blind Signatures under Aborts
We explore the security of blind signatures under aborts where the user or the signer may stop the interactive signature issue protocol prematurely. Several works on blind signatur...
Dominique Schröder, Marc Fischlin
ACISP
2007
Springer
13 years 11 months ago
Hash-and-Sign with Weak Hashing Made Secure
Abstract. Digital signatures are often proven to be secure in the random oracle model while hash functions deviate more and more from this idealization. Liskov proposed to model a ...
Sylvain Pasini, Serge Vaudenay
PKC
2012
Springer
235views Cryptology» more  PKC 2012»
11 years 7 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