Cryptography and Steganography

Overview

Who am I?

Who am I?

Fact and Fiction

USA Today
“Terror groups hide behind Web encryption”
http://www.usatoday.com/life/cyber/tech/2001-02-05-binladen.htm

Wired
“Bin Laden: Steganography Master?”
http://www.wired.com/news/politics/0,1283,41658,00.html

Wired
“Secret Messages Come in .Wavs”
http://www.wired.com/news/print/0,1294,41861,00.html

ABC News
“A Secret Language: Hijackers May Have Used Secret Internet Messaging Techniques”

STEGA-

What Is Steganography?

Osama’s “Code Book”

Al Qaeda Codes

Historical Background

Types of Codes Being Used in the Hacker Subculture

The CIA’s Kryptos Sculpture

The PhreakNIC v3.0 Code

http://members.aol.com/nova1337/tutorial.htm

Solving the PhreakNIC v3.0 Code

The “sekrit” Page

Solution to the PhreakNIC Code

Types of Modern Steganography

Messages in Images
(Polar Bear in a Snowstorm)

Messages in Images

Messages in Images
http://steganography.tripod.com/stego/software.html

JSteg

JPHide
http://linux01.gwdg.de/~alatham/stego.html

S-TOOLS4

S-TOOLS4
 Hiding a 2K File

"MENDING WALL"

Palette Comparison – 2K

S-TOOLS4
Hiding a 100K Font

Palette Comparison – 100K

Messages in Audio Files

Encryption in .wav Audio

Messages in Video Files

Messages in Video Files

Messages in Webpages

Ways that terrorists could use steganography

The Three D’s of Defeating Steganography

Ways to Defeat Steganography - Detection

Ways to Defeat Steganography – Detection

Ways to Defeat Steganography - Detection

Outguess and Stegdetect (www.outguess.org)

Ways to Defeat Steganography - Decryption

Ways to Defeat Steganography - Decryption

Ways to Defeat Steganography - Decryption

Ways to Defeat Steganography – Deletion

Other Weaknesses of Steganography

Other Weaknesses of Steganography

Fact and Fiction

University of Michigan’s December 2001 USENET Scan
http://www.citi.umich.edu/u/provos/stego/usenet.php

Weaknesses of the Michigan Study

Weaknesses of the Michigan Study

The University’s Conclusion

There *Is* Steganography on the Web

ABC News
http://www.citi.umich.edu/u/provos/stego/abc.html

The Elonka Code
http://members.aol.com/elonka/elonkacode1.txt

The Elonka Code - Solvers

The Elonka Code

Elonka’s Personal Site

Antarctic Expedition

Icebergs

“Why Are Icebergs Blue?”

The Future

The Future

Summary

Contact Information

Recommended Reading

Some Weblinks on Steganography

Some Weblinks on Steganography

Some Weblinks on Steganography

Some Weblinks on Steganography

Weblinks

Q & A