78 search results - page 2 / 16 » Attacking Some Perceptual Image Hash Algorithms |
CRYPTO
2008
Springer
13 years 6 months ago
2008
Springer
Abstract. This paper discusses key recovery and universal forgery attacks on several MAC algorithms based on universal hash functions. The attacks use a substantial number of verif...
ICIP
2002
IEEE
14 years 6 months ago
2002
IEEE
Geometric attacks are among the most challenging problems in present day watermarking. Such attacks are very simple to implement yet they can defeat most of the existing watermark...
CTRSA
2006
Springer
13 years 8 months ago
2006
Springer
A series of recent papers have demonstrated collision attacks on popularly used hash functions, including the widely deployed MD5 and SHA-1 algorithm. To assess this threat, the na...
ICIP
2007
IEEE
14 years 6 months ago
2007
IEEE
Scaling attacks are well-known to be some of the most harmful strategies against quantization-based watermarking methods, as they can completely ruin the performance of the waterm...
MYCRYPT
2005
Springer
13 years 10 months ago
2005
Springer
Recently, some collisions have been exposed for a variety of cryptographic hash functions [20,21] including some of the most widely used today. Many other hash functions using simi...