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EUROCRYPT
2007
Springer
14 years 3 months ago
Range Extension for Weak PRFs; The Good, the Bad, and the Ugly
We investigate a general class of (black-box) constructions for range extension of weak pseudorandom functions: a construction based on m independent functions F1, . . . , Fm is gi...
Krzysztof Pietrzak, Johan Sjödin
PKC
2007
Springer
129views Cryptology» more  PKC 2007»
14 years 3 months ago
Two-Tier Signatures, Strongly Unforgeable Signatures, and Fiat-Shamir Without Random Oracles
We provide a positive result about the Fiat-Shamir (FS) transform in the standard model, showing how to use it to convert threemove identification protocols into two-tier signatur...
Mihir Bellare, Sarah Shoup
TCC
2007
Springer
114views Cryptology» more  TCC 2007»
14 years 3 months ago
Multi-authority Attribute Based Encryption
Abstract. In an identity based encryption scheme, each user is identified by a unique identity string. An attribute based encryption scheme (ABE), in contrast, is a scheme in whic...
Melissa Chase
ACNS
2006
Springer
111views Cryptology» more  ACNS 2006»
14 years 3 months ago
Adaptive Detection of Local Scanners
Network attacks often employ scanning to locate vulnerable hosts and services. Fast and accurate detection of local scanners is key to containing an epidemic in its early stage. Ex...
Ahren Studer, Chenxi Wang
ITCC
2005
IEEE
14 years 2 months ago
A Scalable and High Performance Elliptic Curve Processor with Resistance to Timing Attacks
This paper presents a high performance and scalable elliptic curve processor which is designed to be resistant against timing attacks. The point multiplication algorithm (double-a...
Alireza Hodjat, David Hwang, Ingrid Verbauwhede