Analysis of a wavelet-based robust hash algorithm
Albert Meixner, Andreas Uhl · Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE · 2004
This paper paper is a quantitative evaluation of a wavelet-based, robust authentication hashing algorithm. Based on the results of a series of robustness and tampering sensitivity tests, we describepossible shortcomings and propose variousmodifications to the algorithm to improve its performance. The second part of the paper describes and attack against the scheme. It allows an attacker to modify a tampered image, such that it's hash value closely matches the hash value of the original.