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» On the Security of Some Password-Based Key Agreement Schemes
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IACR
2011
94views more  IACR 2011»
12 years 7 months ago
After-the-Fact Leakage in Public-Key Encryption
What does it mean for an encryption scheme to be leakage-resilient? Prior formulations require that the scheme remains semantically secure even in the presence of leakage, but onl...
Shai Halevi, Huijia Lin
ACNS
2003
Springer
130views Cryptology» more  ACNS 2003»
14 years 19 days ago
Generalized Key-Evolving Signature Schemes or How to Foil an Armed Adversary
Key exposures, known or inconspicuous, are a real security threat. Recovery mechanisms from such exposures are required. For digital signatures such a recovery should ideally —an...
Gene Itkis, Peng Xie
CRYPTO
2006
Springer
112views Cryptology» more  CRYPTO 2006»
13 years 11 months ago
On Expected Constant-Round Protocols for Byzantine Agreement
In a seminal paper, Feldman and Micali (STOC '88) show an n-party Byzantine agreement protocol tolerating t < n/3 malicious parties that runs in expected constant rounds. H...
Jonathan Katz, Chiu-Yuen Koo
ISCC
2003
IEEE
101views Communications» more  ISCC 2003»
14 years 21 days ago
A New Self-Healing Key Distribution Scheme
A self-healing key distributionscheme enables a group of users to establish a group key over an unreliable channel. In such a protocol, a group manager, to distributea session key...
Carlo Blundo, Paolo D'Arco, Massimiliano Listo
ICICS
2010
Springer
13 years 5 months ago
Threshold Public-Key Encryption with Adaptive Security and Short Ciphertexts
Threshold public-key encryption (TPKE) allows a set of users to decrypt a ciphertext if a given threshold of authorized users cooperate. Existing TPKE schemes suffer from either lo...
Bo Qin, Qianhong Wu, Lei Zhang, Josep Domingo-Ferr...