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CRYPTO
2003
Springer
109views Cryptology» more  CRYPTO 2003»
13 years 10 months ago
On Deniability in the Common Reference String and Random Oracle Model
We revisit the definitions of zero-knowledge in the Common Reference String (CRS) model and the Random Oracle (RO) model. We argue that even though these definitions syntacticall...
Rafael Pass
TAMC
2007
Springer
13 years 11 months ago
A Note on Universal Composable Zero Knowledge in Common Reference String Model
Pass observed that universal composable zero-knowledge (UCZK) protocols in the common reference string (CRS) model, where a common reference string is selected trustily by a truste...
Andrew Chi-Chih Yao, Frances F. Yao, Yunlei Zhao
ICALP
2007
Springer
13 years 11 months ago
Ring Signatures of Sub-linear Size Without Random Oracles
Ring signatures, introduced by Rivest, Shamir and Tauman, enable a user to sign a message anonymously on behalf of a “ring”. A ring is a group of users, which includes the sign...
Nishanth Chandran, Jens Groth, Amit Sahai
FOCS
2000
IEEE
13 years 9 months ago
Zaps and Their Applications
A zap is a two-round, public coin witness-indistinguishable protocol in which the first round, consisting of a message from the verifier to the prover, can be fixed “once and...
Cynthia Dwork, Moni Naor
TCC
2007
Springer
125views Cryptology» more  TCC 2007»
13 years 11 months ago
Concurrently-Secure Blind Signatures Without Random Oracles or Setup Assumptions
Abstract. We show a new protocol for blind signatures in which security is preserved even under arbitrarily-many concurrent executions. The protocol can be based on standard crypto...
Carmit Hazay, Jonathan Katz, Chiu-Yuen Koo, Yehuda...