117 search results - page 19 / 24 » Short Group Signature Without Random Oracles |
ASIACRYPT
2000
Springer
13 years 11 months ago
2000
Springer
A potentially serious problem with current digital signature schemes is that their underlying hard problems from number theory may be solved by an innovative technique or a new gen...
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...
EUROCRYPT
2004
Springer
13 years 11 months ago
2004
Springer
We introduce Ad Hoc Anonymous Identification schemes, a new multi-user cryptographic primitive that allows participants from a user population to form ad hoc groups, and then prove...
JOC
2011
13 years 2 months ago
2011
In this paper we introduce a new primitive called identity-based encryption with wildcards, or WIBE for short. It allows a sender to encrypt messages to a whole range of receivers ...
EUROCRYPT
2007
Springer
14 years 1 months ago
2007
Springer
We study an adaptive variant of oblivious transfer in which a sender has N messages, of which a receiver can adaptively choose to receive k one-after-the-other, in such a way that ...