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ASIACRYPT
2009
Springer
14 years 3 months ago
Foundations of Non-malleable Hash and One-Way Functions
Non-malleability is an interesting and useful property which ensures that a cryptographic protocol preserves the independence of the underlying values: given for example an encryp...
Alexandra Boldyreva, David Cash, Marc Fischlin, Bo...
CCS
2005
ACM
14 years 2 months ago
Obfuscated databases and group privacy
We investigate whether it is possible to encrypt a database and then give it away in such a form that users can still access it, but only in a restricted way. In contrast to conve...
Arvind Narayanan, Vitaly Shmatikov
CRYPTO
2010
Springer
197views Cryptology» more  CRYPTO 2010»
13 years 10 months ago
Lattice Basis Delegation in Fixed Dimension and Shorter-Ciphertext Hierarchical IBE
We present a technique for delegating a short lattice basis that has the advantage of keeping the lattice dimension unchanged upon delegation. Building on this result, we construct...
Shweta Agrawal, Dan Boneh, Xavier Boyen
CSFW
2007
IEEE
14 years 27 days ago
A Type Discipline for Authorization in Distributed Systems
We consider the problem of statically verifying the conformance of the code of a system to an explicit authorization policy. In a distributed setting, some part of the system may ...
Cédric Fournet, Andy Gordon, Sergio Maffeis
ASIACRYPT
2003
Springer
14 years 2 months ago
Generalized Powering Functions and Their Application to Digital Signatures
This paper investigates some modular powering functions suitable for cryptography. It is well known that the Rabin encryption function is a 4-to-1 mapping and breaking its one-wayn...
Hisayoshi Sato, Tsuyoshi Takagi, Satoru Tezuka, Ka...