332 search results - page 42 / 67 » Token-Controlled Public Key Encryption |
CCS
2010
ACM
13 years 8 months ago
2010
ACM
In this paper, we outline a privacy-preserving matching protocol for OSN (online social network) users to find their potential friends. With the proposed protocol, a logged-in use...
PROVSEC
2007
Springer
14 years 2 months ago
2007
Springer
In a threshold broadcast encryption scheme, a sender chooses (ad-hoc) a set of n receivers and a threshold t, and then encrypts a message by using the public keys of all the recei...
EUROCRYPT
2009
Springer
14 years 9 months ago
2009
Springer
A group key agreement (GKA) protocol allows a set of users to establish a common secret via open networks. Observing that a major goal of GKAs for most applications is to establish...
IEEECIT
2010
IEEE
13 years 6 months ago
2010
IEEE
Suppose Bob, the boss in Company A, pays a secure cloud storage service and authorizes all the employees in that company to share such a service. There exists a user hierarchy: Bob...
FOCS
2009
IEEE
14 years 3 months ago
2009
IEEE
Abstract— Under CPA and CCA1 attacks, a secure bit encryption scheme can be applied bit-by-bit to construct a secure many-bit encryption scheme. The same construction fails, howe...