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ICICS
2007
Springer
14 years 6 months ago
(Convertible) Undeniable Signatures Without Random Oracles
We propose a convertible undeniable signature scheme without random oracles. Our construction is based on the Waters signatures proposed in Eurocrypt 2005. The security of our sche...
Tsz Hon Yuen, Man Ho Au, Joseph K. Liu, Willy Susi...
EUROCRYPT
2007
Springer
14 years 6 months ago
Simulatable Adaptive Oblivious Transfer
We study an adaptive variant of oblivious transfer in which a sender has N messages, of which a receiver can adaptively choose to receive k one-after-the-other, in such a way that ...
Jan Camenisch, Gregory Neven, Abhi Shelat
ASIACRYPT
2009
Springer
14 years 7 months ago
A Modular Design for Hash Functions: Towards Making the Mix-Compress-Mix Approach Practical
The design of cryptographic hash functions is a very complex and failure-prone process. For this reason, this paper puts forward a completely modular and fault-tolerant approach to...
Anja Lehmann, Stefano Tessaro