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More on steganography

By Deborah Radcliff

June 10, 2002 12:00 PM ET

Computerworld - Online Resources
There are about a dozen freeware sites on steganography. But data-hiding instructors at New Technologies Inc. in Gresham, Ore., recommend the Web site of Neil Johnson, IT consultant and associate director at the Center for Secure Information Systems at George Mason University in Fairfax, Va.
Favorite tool: F5 steganography with robust encryption.
Steganalysis tools by Niels Provos, doctoral candidate at the University of Michigan at Ann Arbor, include the following:

Stegdetect identifies possible steganographic images based on value distributions

Stegbreak, which uses dictionary guessing to break the encoding password

In development: self-teaching tools that will understand the common values in image and sound files

Books

Disappearing Cryptography, 2nd Edition, by Peter S. Wayner (Morgan Kaufmann Publishers, 2002; 360 pages; $31.47)

Information Hiding Techniques for Steganography and Digital Watermarking, Stefan Katzenbeisser and A.P. Petitcolas Fabien, eds. (Artech House, 2000; 240 pages; $85)

Information Hiding: Steganography and Watermarking -- Attacks and Countermeasures (Advances in Information Security, Vol. 1), by Neil F. Johnson, Soran Duric and Sushil G. Jajodia (Kluwer Academic Publishers, 2001; 160 pages; $95)

Image and Video Databases: Restoration, Watermarking and Retrieval, by A. Hanjalic et al. (Elsevier Science, 2000; 466 pages; $118)

Digital Watermarking, Principles & Practice, by Ingemar Cox et al. (Morgan Kaufmann Publishers, 2001; 576 pages; $69.95)

Steganography and Digital Watermarking Vendors

AlpVision
Vevey, Switzerland

Alpha-Tec Ltd.
Thessalonika, Greece

Blue Spike Inc.
Miami

Central Research Laboratories Ltd.
Hayes, Middlesex, England

Digimarc Corp.
Tualatin, Ore.

Fraunhofer Center for Research in Computer Graphics Inc.
Providence, R.I.

Macrovision Corp.
Santa Clara, Calif.

Signum Technologies Ltd.
Witney, Oxfordshire, England

Verance Corp.
San Diego

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