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» Secure Hash-and-Sign Signatures Without the Random Oracle
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ASIACRYPT
2009
Springer
14 years 2 months ago
Simple Adaptive Oblivious Transfer without Random Oracle
Adaptive oblivious transfer (adaptive OT) schemes have wide applications such as oblivious database searches, secure multiparty computation and etc. It is a two-party protocol whic...
Kaoru Kurosawa, Ryo Nojima
EUROCRYPT
2003
Springer
14 years 19 days ago
Extracting Group Signatures from Traitor Tracing Schemes
Abstract. Digital Signatures emerge naturally from Public-Key Encryption based on trapdoor permutations, and the “duality” of the two primitives was noted as early as Diffie-He...
Aggelos Kiayias, Moti Yung
PKC
2009
Springer
166views Cryptology» more  PKC 2009»
14 years 8 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
FOCS
2007
IEEE
14 years 1 months ago
Lower Bounds on Signatures From Symmetric Primitives
We show that every construction of one-time signature schemes from a random oracle achieves black-box security at most 2(1+o(1))q , where q is the total number of oracle queries a...
Boaz Barak, Mohammad Mahmoody-Ghidary
CRYPTO
2000
Springer
133views Cryptology» more  CRYPTO 2000»
13 years 11 months ago
Provably Secure Partially Blind Signatures
Partially blind signature schemes are an extension of blind signature schemes that allow a signer to explicitly include necessary information (expiration date, collateral condition...
Masayuki Abe, Tatsuaki Okamoto