Steganography
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'''Steganography''' is a class of [[encryption]] in which the very fact that information exists is obscured. For example, an innocent-looking [[PNG]] image could contain a secret message encoded in its seemingly-random least-significant bits. Assuming the algorithm is sufficiently secure, it would be impossible to know whether the message exists or not, unless you know the secret key. | '''Steganography''' is a class of [[encryption]] in which the very fact that information exists is obscured. For example, an innocent-looking [[PNG]] image could contain a secret message encoded in its seemingly-random least-significant bits. Assuming the algorithm is sufficiently secure, it would be impossible to know whether the message exists or not, unless you know the secret key. | ||
Revision as of 13:39, 2 September 2023
Steganography is a class of encryption in which the very fact that information exists is obscured. For example, an innocent-looking PNG image could contain a secret message encoded in its seemingly-random least-significant bits. Assuming the algorithm is sufficiently secure, it would be impossible to know whether the message exists or not, unless you know the secret key.
Contents |
Formats
For a list of formats, see Encryption#Steganography.
Detection
- Ben-4D Steganalysis Software - Detects JPHS (JPHide/JPSeek), LSB, Invisible Secrets v4.0, Fuse, Camouflage v1.2.1
- Stegdetect - Detects jsteg, JPHS (JPHide/JPSeek), Invisible Secrets, OutGuess 01.3b, F5 (header analysis), appendX and Camouflage
- StegSpy - Detects JPHS (JPHide/JPSeek), Hiderman, Masker, JPegX, Invisible Secrets
- Steganalysis papers by Hany Farid
- Detecting Steganographic Messages in Digital Images - Jsteg, EZStego, OutGuess
- Detecting Hidden Messages Using Higher-Order Statistical Models - Jsteg, EZStego, OutGuess
Cracking
- StegBreak (included with Stegdetect) - dictionary attacks against JSteg-Shell, JPHS (JPHide/JPSeek) and OutGuess 01.3b
- Stegseek - dictionary attacks against steghide
- StegCracker - dictionary attacks against steghide
- StegBrute - dictionary attacks against steghide
General
- Aletheia
- StegoHunt MP and StegoCommand
- StegoHunt: identifies thousands of steganography, stegware and data hiding applications
- StegoAnalyst: DCT coefficients, color pairs, etc
- StegoBreak: Dictionary attacks against many steganography programs
- StegoCommand: Statistical and structural anomalies, data appending and prepending, misplaced or suspect text or binary
- StegoSuit - perform ELA (Error Level Analysis), String, Threshold, Edge and Metadata analysis of any image
- Stegosuite Analysis - chi square, LSB visualization, histogram (neighborhood, pixels difference, pov), sorted color table attack
See also
