345 search results - page 21 / 69 » On the Security of a Variation of Cramer-Shoup's Public Key ... |
TCS
2008
13 years 7 months ago
2008
A time-bound hierarchical key assignment scheme is a method to assign time-dependent encryption keys to a set of classes in a partially ordered hierarchy, in such a way that each ...
IJNSEC
2007
13 years 7 months ago
2007
In a hierarchical structure, a user in a security class has access to information items of another class if and only if the former class is a predecessor of latter. Based upon cry...
ICCSA
2004
Springer
14 years 22 days ago
2004
Springer
Abstract. Wireless LAN (WLAN) refers to the wireless network environment constructed indoors or outdoors, by using either the radio or light wave technology instead of wire signals...
PKC
2005
Springer
14 years 26 days ago
2005
Springer
In this paper, we present the cryptanalysis of a public key scheme based on a system of multivariate polynomial equations, the ”tractable rational map” cryptosystem. We show co...
DCC
2005
IEEE
14 years 7 months ago
2005
IEEE
Signcryption [35] is a public key primitive that achieves the functionality of both an encryption scheme and a signature scheme simultaneously. It does this more efficiently than a...