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IACR
2011
94views more  IACR 2011»
12 years 5 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
FI
2011
96views more  FI 2011»
13 years 18 days ago
A Distributed Public Key Infrastructure Based on Threshold Cryptography for the HiiMap Next Generation Internet Architecture
: In this article, a security extension for the HiiMap Next Generation Internet Architecture is presented. We regard a public key infrastructure which is integrated into the mappin...
Oliver Hanka, Michael Eichhorn, Martin Pfannenstei...
SSS
2010
Springer
154views Control Systems» more  SSS 2010»
13 years 4 months ago
Authenticated Broadcast with a Partially Compromised Public-Key Infrastructure
Abstract. Given a public-key infrastructure (PKI) and digital signatures, it is possible to construct broadcast protocols tolerating any number of corrupted parties. Almost all exi...
S. Dov Gordon, Jonathan Katz, Ranjit Kumaresan, Ar...
ICICS
2010
Springer
13 years 3 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...
PKC
2012
Springer
212views Cryptology» more  PKC 2012»
11 years 8 months ago
Public-Key Cryptography from New Multivariate Quadratic Assumptions
In this work, we study a new multivariate quadratic (MQ) assumption that can be used to construct public-key encryption schemes. In particular, we research in the following two di...
Yun-Ju Huang, Feng-Hao Liu, Bo-Yin Yang