357 search results - page 13 / 72 » Distributed Attribute-Based Encryption |
ICDCS
2002
IEEE
14 years 2 months ago
2002
IEEE
A key tree is a distributed data structure of security keys that can be used by a group of users. In this paper, we describe how any user in the group can use the different keys i...
ICDCIT
2004
Springer
14 years 2 months ago
2004
Springer
We focus on the problem of distributing key updates in secure dynamic groups. Due to changes in group membership, the group controller needs to change and distribute the keys used...
SCN
2010
Springer
13 years 7 months ago
2010
Springer
An identity-based encryption (IBE) scheme can greatly reduce the complexity of sending encrypted messages. However, an IBE scheme necessarily requires a private-key generator (PKG)...
ACNS
2003
Springer
14 years 2 months ago
2003
Springer
Distributed key generation is one of the most challenging tasks for threshold cryptosystems. Designing such a protocol and proving its security against a malicious, adaptive adver...
CRYPTO
2012
Springer
11 years 11 months ago
2012
Springer
We give the first proof of security for an identity-based encryption scheme in the quantum random oracle model. This is the first proof of security for any scheme in this model ...