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94
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CTRSA
2007
Springer
146views Cryptology» more  CTRSA 2007»
15 years 5 months ago
How to Strengthen Any Weakly Unforgeable Signature into a Strongly Unforgeable Signature
Standard signature schemes are usually designed only to achieve weak unforgeability – i.e. preventing forgery of signatures on new messages not previously signed. However, most s...
Ron Steinfeld, Josef Pieprzyk, Huaxiong Wang
110
Voted
TPDS
1998
94views more  TPDS 1998»
14 years 11 months ago
Access Control and Signatures via Quorum Secret Sharing
—We suggest a method of controlling the access to a secure database via quorum systems. A quorum system is a collection of sets (quorums) every two of which have a nonempty inter...
Moni Naor, Avishai Wool
91
Voted
EUROCRYPT
2007
Springer
15 years 5 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
2001
Springer
15 years 3 months ago
Efficient Zero-Knowledge Authentication Based on a Linear Algebra Problem MinRank
A Zero-knowledge protocol provides provably secure entity authentication based on a hard computational problem. Among many schemes proposed since 1984, the most practical rely on f...
Nicolas Courtois
CCS
2006
ACM
15 years 3 months ago
Deniable authentication and key exchange
We extend the definitional work of Dwork, Naor and Sahai from deniable authentication to deniable key-exchange protocols. We then use these definitions to prove the deniability fe...
Mario Di Raimondo, Rosario Gennaro, Hugo Krawczyk