Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Editorial Secure Steganography in Multimedia Content | Hindawi Publishing Corporation EURASIP Journal on Information Security Volume 2009 Article ID257131 1 page doi 2009 257131 Editorial Secure Steganography in Multimedia Content Miroslav Goljan1 and Andreas Westfeld2 1 Electrical and Computer Engineering Watson School Binghamton University P. O. Box 6000 Binghamton NY 13902-6000 USA 2Faculty of Computer Science and Mathematics HTW Dresden Institute of Systems Architecture University of Applied Sciences 120701 PF 01008 Dresden Germany Correspondence should be addressed to Miroslav Goljan mgoljan@ Received 15 April 2009 Accepted 15 April 2009 Copyright 2009 M. Goljan and A. Westfeld. This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use distribution and reproduction in any medium provided the original work is properly cited. Steganography known as the art of covert communication entered digital world about ten years ago. After gaining special interest of research groups around the world steganography and steganalysis are slowly reaching maturity. Images produced by digital cameras are typical multimedia carriers where hiding secrets has been studied deeply. They contain a large amount of randomness that is hard to distinguish from telltale signs of hidden and eventually encrypted messages. The security requirement in steganography ultimately means that no such detection method should exist that would be able to tell carriers with hidden messages from innocent ones with a significant reliability. Introduction of every new steganographic scheme spurred a number of publications on steganalysis of that scheme. Empirically determined secure capacities shrink with advances in steganalysis. A hope for finding general optimal solutions is narrow since they have to be tied to carrier models. To achieve undetectability steganographers minimize the impact of message data embedding on the carrier in two ways by content-aware embedding in .
