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CRYPTO
2005
Springer
135views Cryptology» more  CRYPTO 2005»
14 years 2 months ago
Constant-Round Multiparty Computation Using a Black-Box Pseudorandom Generator
We present a constant-round protocol for general secure multiparty computation which makes a black-box use of a pseudorandom generator. In particular, the protocol does not requir...
Ivan Damgård, Yuval Ishai
CIE
2010
Springer
13 years 7 months ago
Proofs, Programs, Processes
Abstract. We study a realisability interpretation for inductive and coinductive definitions and discuss its application to program extraction from proofs. A speciality of this inte...
Ulrich Berger, Monika Seisenberger
MST
2011
237views Hardware» more  MST 2011»
13 years 3 months ago
On the Complexity of Computing Winning Strategies for Finite Poset Games
This paper is concerned with the complexity of computing winning strategies for poset games. While it is reasonably clear that such strategies can be computed in PSPACE, we give a ...
Michael Soltys, Craig Wilson
CORR
2010
Springer
119views Education» more  CORR 2010»
13 years 7 months ago
Computational Complexity of Avalanches in the Kadanoff two-dimensional Sandpile Model
In this paper we prove that the avalanche problem for the Kadanoff sandpile model (KSPM) is P-complete for two-dimensions. Our proof is based on a reduction from the monotone circ...
Eric Goles Chacc, Bruno Martin
CHI
2005
ACM
13 years 11 months ago
Designing human friendly human interaction proofs (HIPs)
HIPs, or Human Interactive Proofs, are challenges meant to be easily solved by humans, while remaining too hard to be economically solved by computers. HIPs are increasingly used ...
Kumar Chellapilla, Kevin Larson, Patrice Y. Simard...