Cryptanalysis of an Encryption Scheme Based on Blind Source Separation
Cryptography and Security
2010-06-23 v1 Multimedia
Abstract
Recently Lin et al. proposed a method of using the underdetermined BSS (blind source separation) problem to realize image and speech encryption. In this paper, we give a cryptanalysis of this BSS-based encryption and point out that it is not secure against known/chosen-plaintext attack and chosen-ciphertext attack. In addition, there exist some other security defects: low sensitivity to part of the key and the plaintext, a ciphertext-only differential attack, divide-and-conquer (DAC) attack on part of the key. We also discuss the role of BSS in Lin et al.'s efforts towards cryptographically secure ciphers.
Cite
@article{arxiv.cs/0608024,
title = {Cryptanalysis of an Encryption Scheme Based on Blind Source Separation},
author = {Shujun Li and Chengqing Li and Kwok-Tung Lo and Guanrong Chen},
journal= {arXiv preprint arXiv:cs/0608024},
year = {2010}
}
Comments
8 pages, 10 figures, IEEE format