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ICISC
2007
152views Cryptology» more  ICISC 2007»
15 years 7 months ago
Analysis of Multivariate Hash Functions
We analyse the security of new hash functions whose compression function is explicitly defined as a sequence of multivariate equations. First we prove non-universality of certain ...
Jean-Philippe Aumasson, Willi Meier
SIGIR
2010
ACM
15 years 6 months ago
Retrieval system evaluation: automatic evaluation versus incomplete judgments
In information retrieval (IR), research aiming to reduce the cost of retrieval system evaluations has been conducted along two lines: (i) the evaluation of IR systems with reduced...
Claudia Hauff, Franciska de Jong
ICASSP
2010
IEEE
15 years 6 months ago
A novel watermarking scheme with compensation in bit-stream domain for H.264/AVC
Currently, most of the watermarking algorithms for H.264/AVC video coding standard are encoder-based due to their high perceptual quality. However, for the compressed video, they ...
Liwei Zhang, Yuesheng Zhu, Lai-Man Po
CVPR
2008
IEEE
16 years 8 months ago
High resolution motion layer decomposition using dual-space graph cuts
We introduce a novel energy minimization method to decompose a video into a set of super-resolved moving layers. The proposed energy corresponds to the cost of coding the sequence...
Thomas Schoenemann, Daniel Cremers
CCS
2004
ACM
15 years 11 months ago
Attacking and repairing the winZip encryption scheme
WinZip is a popular compression utility for Microsoft Windows computers, the latest version of which is advertised as having “easy-to-use AES encryption to protect your sensitiv...
Tadayoshi Kohno