270 search results - page 31 / 54 » Practical forward secure group signature schemes |
EUROCRYPT
2007
Springer
14 years 4 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 ...
PKC
2010
Springer
14 years 1 months ago
2010
Springer
Sanitizable signatures allow a designated party, called the sanitizer, to modify parts of signed data such that the immutable parts can still be verified with respect to the origi...
AMC
2005
13 years 9 months ago
2005
Hwang and Chen recently proposed new multi-proxy multi-signature schemes that allow a group of authorized proxy signers to sign messages on behalf of a group of original signers. ...
ASIACRYPT
2003
Springer
14 years 3 months ago
2003
Springer
Provable security usually makes the assumption that a source of perfectly random and secret data is available. However, in practical applications, and especially when smart cards a...
ASIACRYPT
2004
Springer
14 years 3 months ago
2004
Springer
Abstract. An authenticated group key exchange (AGKE) scheme allows a group of users in a public network to share a session key which may later be used to achieve desirable cryptogr...