Download Information hiding techniques for steganography and digital by Stefan Katzenbeisser, Fabien, A.P. Petitcolas PDF

By Stefan Katzenbeisser, Fabien, A.P. Petitcolas

An intensive evaluate of steganography, the heritage of this formerly ignored part of cryptography, an outline of attainable purposes, and a survey of equipment you should use to conceal info in sleek media. DLC: Cryptography.

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Extra info for Information hiding techniques for steganography and digital watermarking

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Presented at the 74th Convention of the AES, Berlin, 16–19 March, 1993. [52] Gerzon, M. , and P. G. Graven, "A High-Rate Buried-Data Channel for Audio CD," Journal of the Audio Engineering Society, vol. 43, no. –Feb. 1995, pp. 3–22. [53] Johnson, N. , "In Search of the Right Image: Recognition and Tracking of Images in Image Databases, Collections, and The Internet," Technical report, George Mason University, Center for Secure Information Systems, Jun. 1999. [54] Friedman, G. , "The Trustworthy Digital Camera: Restoring Credibility to the Photographic Image," IEEE Transactions on Consumer Electronics, vol.

Wendy could fool Bob by starting a public key steganography protocol or the extended protocol given above in the name of Alice. 3 Illustration of a steganographic key-exchange protocol. Courtesy of Scott Craver, reprinted from [2]. in the first step of the protocol, he cannot identify the key he received with Alice. This situation is very similar to public key cryptography, where a certification of the public key is required. In the case of pure steganography, Bob is not able to distinguish a message sent by Alice from a message by Wendy.

In some cases Wendy will correctly classify the cover, in other cases she will not detect a hidden message, making a type-II error. It is also possible that Wendy falsely detects a hidden message in a cover which does not contain information; she then makes a type-I error. Practical steganography systems try to maximize the probability β that a passive attacker makes a type-II error. An ideal system would have β = 1. In the following paragraphs we will show that perfectly secure steganography systems (provided that an attacker makes a type-I error with probability zero) possess this property.

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