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» Identity Based Authenticated Key Agreement Protocols from Pa...
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STOC
2009
ACM
145views Algorithms» more  STOC 2009»
14 years 8 months ago
Non-malleable extractors and symmetric key cryptography from weak secrets
We study the question of basing symmetric key cryptography on weak secrets. In this setting, Alice and Bob share an n-bit secret W, which might not be uniformly random, but the ad...
Yevgeniy Dodis, Daniel Wichs
ACNS
2005
Springer
88views Cryptology» more  ACNS 2005»
14 years 1 months ago
Strengthening Password-Based Authentication Protocols Against Online Dictionary Attacks
Passwords are one of the most common cause of system break-ins, because the low entropy of passwords makes systems vulnerable to brute force guessing attacks (dictionary attacks). ...
Peng Wang, Yongdae Kim, Vishal Kher, Taekyoung Kwo...
IACR
2011
73views more  IACR 2011»
12 years 7 months ago
Secure Authentication from a Weak Key, Without Leaking Information
We study the problem of authentication based on a weak key in the information-theoretic setting. A key is weak if its min-entropy is an arbitrary small fraction of its bit length. ...
Niek J. Bouman, Serge Fehr
ACSAC
2006
IEEE
14 years 1 months ago
Protecting Privacy in Key-Value Search Systems
This paper investigates the general problem of performing key-value search at untrusted servers without loss of user privacy. Specifically, given key-value pairs from multiple ow...
Yinglian Xie, Michael K. Reiter, David R. O'Hallar...
SIGMOD
2004
ACM
133views Database» more  SIGMOD 2004»
14 years 7 months ago
Robust key establishment in sensor networks
Secure communication guaranteeing reliability, authenticity, and privacy in sensor networks with active adversaries is a challenging research problem since asymmetric key cryptosy...
Yongge Wang