P. S. L. M. Barreto, H. Y. Kim, and V. Rijmen, "Toward a secure publickey blockwise fragile authentication watermarking," in IEEE ICIP2001. Home/Search Document Not in Database Summary Related Articles Check |
This paper is cited in the following contexts:
Hybrid Robust Watermarking Resistant Against Copy Attack - Deguillaume.. (2002) (Correct)
....failed: therefore by rejecting this case, our hybrid approach is resistant to copy attack. 3 SECURITY OF FRAGILE WATERMARK It has been noticed that schemes based on the hashing of independantblocks likeWong s scheme were vulnerage to various tampering attacks such as substitutions attacks [5]. Suchattacks are mainly made possible first due to the independance of blocks, and secondly as a result of the anniversary paradox affecting hash functions used as signatures. An attack based on this paradox uses the fact that for hash codes of n bits, the probabilitythattwo different blocks ....
....are gathered: therefore for hash codes of 64 bits, only 2 32 block samples are needed to obtain a collision# the availability of large databases of images protected with the same key would makethisattack realistic. Among solutions proposed to fix these security problems, the main ones consists in [5]: using hash codes of 128 bits or more to defeat the anniversary attack# making hash codes embedded into one block also dependent from neighbouring blocks, or using overlapping blocks as input of hashcodes and smaller non overlapping blocks for embedding these codes# using non deterministic ....
Hae Yong Kim Paulo S. L. M. Barreto and Vincent Rijmen. Toward a secure public-key blockwise fragile authentication watermarking. In In IEEE ICIP2001.
Information-Theoretic Data-Hiding for Public.. - Voloshynovskiy.. (2003) (Correct)
No context found.
P. S. L. M. Barreto, H. Y. Kim, and V. Rijmen, "Toward a secure publickey blockwise fragile authentication watermarking," in IEEE ICIP2001.
Online articles have much greater impact More about CiteSeer.IST Add search form to your site Submit documents Feedback
CiteSeer.IST - Copyright Penn State and NEC