01188nam a2200229Ia 4500 CTU_166082 210402s9999 xx 000 0 und d 62.95 005.82 W359 Wayner, Peter Disappearing cryptography : Information hiding : Steganography & watermarking Peter Wayner United States Morgan Kaufmann Publishers 2002 Disappearing Cryptography, Second Edition describes how to take words, sounds, or images and hide them in digital data so they look like other words, sounds, or images. When used properly, this powerful technique makes it almost impossible to trace the author and the recipient of a message. Conversations can be submerged in the flow of information through the Internet so that no one can know if a conversation exists at all. Computer networks,Cryptography,Internet,Digital watermarking,Mạng máy tính,Mật mã,Mạng Internet Security measures,Biện pháp an ninh Bich Van, Loan, Bạch Trúc Trung tâm Học liệu Trường Đại học Cần Thơ
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