78 search results - page 3 / 16 » Attacking Some Perceptual Image Hash Algorithms |
ICIP
2002
IEEE
14 years 7 months ago
2002
IEEE
We present a hybrid approach to image watermarking that exploits results from both information theory and perceptual studies. Towards this purpose we use a waterfilling-type algor...
IWDW
2007
Springer
13 years 11 months ago
2007
Springer
Abstract. Scaling attacks are well-known to be some of the most harmful strategies against quantization-based watermarking methods, as they desynchronize the decoder, completely ru...
ICMCS
2005
IEEE
13 years 11 months ago
2005
IEEE
A common way of resisting protocol attacks is to employ cryptographic techniques so that provable security can be retained. However, some desired requirements of watermarking such...
JCST
2007
13 years 5 months ago
2007
In this paper, we present a fast attack algorithm to find two-block collision of hash function MD5. The algorithm is based on the two-block collision differential path of MD5 that ...
KES
2005
Springer
13 years 11 months ago
2005
Springer
Abstract. Invertibility attack is a hostile measure to breach watermarking systems. In this paper, a novel watermarking protocol using a one-way hash function and a check of random...