346 search results - page 21 / 70 » The Secret Santa Problem |
COCOON
2008
Springer
14 years 22 days ago
2008
Springer
In this paper, we consider a new visual cryptography scheme that allows for sharing of multiple secret images on graphs: we are given an arbitrary graph (V, E) where every node an...
ENTCS
2006
13 years 11 months ago
2006
There are two main ways of defining secrecy of cryptographic protocols. The first version checks if the adversary can learn the value of a secret parameter. In the second version,...
ICIP
2003
IEEE
15 years 16 days ago
2003
IEEE
This paper considers the problem of encoding a secret binary image SI into n shares of meaningful halftone images within the scheme of visual cryptography (VC). Secret pixels enco...
SDMW
2004
Springer
14 years 4 months ago
2004
Springer
In a database system, authorization-based access-control is generally the first line of defense, preventing unauthorized accesses to secret or sensitive data. However, this mechan...
FC
2004
Springer
14 years 4 months ago
2004
Springer
Abstract In wireless ad-hoc broadcast networks the pairing problem consists of establishing a (long-term) connection between two specific physical nodes in the network that do not...