35 search results - page 4 / 7 » Trapdoors for Hard Lattices and New Cryptographic Constructi... |
CRYPTO
2010
Springer
13 years 8 months ago
2010
Springer
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...
ISW
2010
Springer
13 years 5 months ago
2010
Springer
A Private Information Retrieval (PIR) protocol allows a database user, or client, to obtain information from a data- base in a manner that prevents the database from knowing which...
IACR
2011
12 years 7 months ago
2011
We put forward a generalization of lossy trapdoor functions (LTFs). Namely, all-but-many lossy trapdoor functions (ABM-LTFs) are LTFs that are parametrized with tags. Each tag can...
PKC
2012
Springer
11 years 9 months ago
2012
Springer
We initiate the study of security for key-dependent messages (KDM), sometimes also known as “circular” or “clique” security, in the setting of identity-based encryption (I...
ASIACRYPT
2009
Springer
14 years 2 months ago
2009
Springer
We present a new construction of non-committing encryption schemes. Unlike the previous constructions of Canetti et al. (STOC ’96) and of Damg˚ard and Nielsen (Crypto ’00), ou...