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论文类型：会议论文

发表时间：2005-05-30

收录刊物：EI

卷号：3497

期号：II

页面范围：544-549

摘要：Blind source separation (BSS) has been successfully applied in many fields such as communications and biomedical engineering. Its application for image and speech encryption, however, has been scarce. Motivated by the fact that the security of many public-key cryptosystems relies on the apparent intractability of the computational problems such as the integer factorization problem, we present a BSS-based method for encrypting images and speeches by utilizing the BSS underdetermined problem. We discuss how to construct the mixing matrix for encryption and how to generate the key signals. Computer simulation results show that the BSS-based method has high level of security. © Springer-Verlag Berlin Heidelberg 2005.