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» Statistically-hiding commitment from any one-way function
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STOC
2009
ACM
91views Algorithms» more  STOC 2009»
14 years 8 months ago
Inaccessible entropy
We put forth a new computational notion of entropy, which measures the (in)feasibility of sampling high entropy strings that are consistent with a given protocol. Specifically, we...
Iftach Haitner, Omer Reingold, Salil P. Vadhan, Ho...
COCO
2010
Springer
168views Algorithms» more  COCO 2010»
13 years 8 months ago
A New Sampling Protocol and Applications to Basing Cryptographic Primitives on the Hardness of NP
We investigate the question of what languages can be decided efficiently with the help of a recursive collisionfinding oracle. Such an oracle can be used to break collisionresistan...
Iftach Haitner, Mohammad Mahmoody, David Xiao
TCC
2009
Springer
117views Cryptology» more  TCC 2009»
14 years 8 months ago
Towards a Theory of Extractable Functions
Extractable functions are functions where any adversary that outputs a point in the range of the function is guaranteed to "know" a corresponding preimage. Here, knowledg...
Ran Canetti, Ronny Ramzi Dakdouk
TCS
2010
13 years 2 months ago
Bounds on the efficiency of black-box commitment schemes
Constructions of cryptographic primitives based on general assumptions (e.g., one-way functions) tend to be less efficient than constructions based on specific (e.g., number-theor...
Omer Horvitz, Jonathan Katz
CORR
2011
Springer
167views Education» more  CORR 2011»
13 years 2 months ago
Fully Simulatable Quantum-Secure Coin-Flipping and Applications
We propose a coin-flip protocol which yields a string of strong, random coins and is fully simulatable against poly-sized quantum adversaries on both sides. It can be implemented ...
Carolin Lunemann, Jesper Buus Nielsen