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» Constructive Proofs of Concentration Bounds
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ICALP
2005
Springer
14 years 1 months ago
Single-Key AIL-MACs from Any FIL-MAC
Abstract. We investigate a general paradigm for constructing arbitraryinput-length (AIL) MACs from fixed-input-length (FIL) MACs, define the waste as the relevant efficiency para...
Ueli M. Maurer, Johan Sjödin
ENDM
2008
93views more  ENDM 2008»
13 years 7 months ago
On Universal Graphs of Minor Closed Families
For a family F of graphs, a graph U is said to be F-universal if every graph of F is a subgraph of U. Similarly, a graph is said to be F-induced-universal if every graph of F is a...
Arnaud Labourel
FOCS
2008
IEEE
14 years 2 months ago
Almost-Natural Proofs
Razborov and Rudich have shown that so-called natural proofs are not useful for separating P from NP unless hard pseudorandom number generators do not exist. This famous result is...
Timothy Y. Chow
CRYPTO
2005
Springer
103views Cryptology» more  CRYPTO 2005»
14 years 1 months ago
Pebbling and Proofs of Work
We investigate methods for providing easy-to-check proofs of computational effort. Originally intended for discouraging spam, the concept has wide applicability as a method for co...
Cynthia Dwork, Moni Naor, Hoeteck Wee
AML
2008
91views more  AML 2008»
13 years 7 months ago
On meta complexity of propositional formulas and propositional proofs
A new approach to defining complexity of propositional formulas and proofs is suggested. Instead of measuring the size of these syntactical structures in the propositional languag...
Pavel Naumov