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» Security Analysis of Several Group Signature Schemes
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TC
2008
14 years 11 months ago
On the Computational Security of a Distributed Key Distribution Scheme
In a distributed key distribution scheme, a set of servers help a set of users in a group to securely obtain a common key. Security means that an adversary who corrupts some server...
Vanesa Daza, Javier Herranz, Germán S&aacut...
ICIP
2001
IEEE
16 years 1 months ago
A hierarchical image authentication watermark with improved localization and security
Several fragile watermarking schemes presented in the literature are either vulnerable to vector quantization (VQ) counterfeiting attacks or sacrifice localization accuracy to imp...
Mehmet Utku Celik, Gaurav Sharma, Eli Saber, A. Mu...
SP
2002
IEEE
140views Security Privacy» more  SP 2002»
14 years 11 months ago
Efficient Multicast Packet Authentication Using Signature Amortization
We describe a novel method for authenticating multicast packets that is robust against packet loss. Our main focus is to minimize the size of the communication overhead required t...
Jung Min Park, Edwin K. P. Chong, Howard Jay Siege...
ESORICS
2009
Springer
15 years 3 months ago
Medical Image Integrity Control Combining Digital Signature and Lossless Watermarking
Enforcing protection of medical content becomes a major issue of computer security. Since medical contents are more and more widely distributed, it is necessary to develop security...
Wei Pan, Gouenou Coatrieux, Nora Cuppens-Boulahia,...
DCC
2001
IEEE
15 years 11 months ago
Cryptography in Quadratic Function Fields
We describe several cryptographic schemes in quadratic function fields of odd characteristic. In both the real and the imaginary representation of such a field, we present a Diffi...
Renate Scheidler