94 search results - page 18 / 19 » Proxy Re-signature Schemes Without Random Oracles |
CRYPTO
2009
Springer
14 years 10 days ago
2009
Springer
We study the design of cryptographic primitives resilient to key-leakage attacks, where an attacker can repeatedly and adaptively learn information about the secret key, subject o...
PKC
1998
Springer
13 years 10 months ago
1998
Springer
The ElGamal encryption scheme has been proposed several years ago and is one of the few probabilistic encryption schemes. However, its security has never been concretely proven bas...
CCS
2005
ACM
13 years 11 months ago
2005
ACM
We describe a new encryption technique that is secure in the standard model against adaptive chosen ciphertext (CCA2) attacks. We base our method on two very efficient Identity-Ba...
ASIACRYPT
2004
Springer
13 years 11 months ago
2004
Springer
Secret handshakes were recently introduced [BDS+ 03] to allow members of the same group to authenticate each other secretly, in the sense that someone who is not a group member ca...
ICALP
2004
Springer
13 years 11 months ago
2004
Springer
We define a natural notion of efficiency for approximate nearest-neighbor (ANN) search in general n-point metric spaces, namely the existence of a randomized algorithm which answ...