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» Security Notions for Disk Encryption
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CCS
2007
ACM
14 years 1 months ago
Security under key-dependent inputs
In this work we re-visit the question of building cryptographic primitives that remain secure even when queried on inputs that depend on the secret key. This was investigated by B...
Shai Halevi, Hugo Krawczyk
PAIRING
2009
Springer
117views Cryptology» more  PAIRING 2009»
14 years 2 months ago
Identity Based Group Signatures from Hierarchical Identity-Based Encryption
A number of previous papers explored the notion of identity-based group signature. We present a generic construction of identity-based group signatures. Our construction is based o...
Nigel P. Smart, Bogdan Warinschi
FOCS
1999
IEEE
13 years 11 months ago
Non-Malleable Non-Interactive Zero Knowledge and Adaptive Chosen-Ciphertext Security
We introduce the notion of non-malleable noninteractive zero-knowledge (NIZK) proof systems. We show how to transform any ordinary NIZK proof system into one that has strong non-m...
Amit Sahai
EUROCRYPT
2003
Springer
14 years 21 days ago
A Forward-Secure Public-Key Encryption Scheme
Cryptographic computations are often carried out on insecure devices for which the threat of key exposure represents a serious concern. Forward security allows one to mitigate the...
Ran Canetti, Shai Halevi, Jonathan Katz
ESORICS
2007
Springer
14 years 1 months ago
On the Privacy of Concealed Data Aggregation
A formal treatment to the privacy of concealed data aggregation (CDA) is given. While there exist a handful of constructions, rigorous security models and analyses for CDA are stil...
Aldar C.-F. Chan, Claude Castelluccia