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Steganography is the practice of concealing a file, message, image, or video within another file, message, image, or video. Generally, the hidden messages appear to be (or be part of) something else: images, articles, shopping lists, or some other cover text. For example, the hidden message may be in invisible ink between the visible lines of a private letter. Some implementations of steganography that lack a shared secret are forms of security through obscurity, whereas key-dependent steganographic schemes adhere to Kerckhoffs's principle. The advantage of steganography over cryptography alone is that the intended secret message does not attract attention to itself as an object of scrutiny. Plainly visible encrypted messages - no matter how unbreakable - arouse interest, and may in themselves be incriminating in countries where encryption is illegal. Thus, whereas cryptography is the practice of protecting the contents of a message alone, steganography is concerned with concealing the fact that a secret message is being sent, as well as concealing the contents of the message. Steganography includes the concealment of information within computer files. In digital steganography, electronic communications may include steganographic coding inside of a transport layer, such as a document file, image file, program or protocol. Media files are ideal for steganographic transmission because of their large size. For example, a sender might start with an innocuous image file and adjust the color of every 100th pixel to correspond to a letter in the alphabet, a change so subtle that someone not specifically looking for it is unlikely to notice it.

Tool count: 14

Name Version Description Category Website
matroschka 58.2f026a4 Python steganography tool to hide images or text in images. stego
openpuff 4.01 Yet not another steganography SW. stego windows
openstego 0.8.4 A tool implemented in Java for generic steganography, with support for password-based encryption of the data. crypto stego
pngcheck 3.0.3 Verifies the integrity of PNG, JNG and MNG files by checking the CRCs and decompressing the image data. stego defensive forensic
silenteye 21.a53a7ff A cross-platform application design for an easy use of steganography. stego
stegcracker 2.1.0 Steganography brute-force utility to uncover hidden data inside files. stego
stegdetect 20.28a4f07 An automated tool for detecting steganographic content in images. stego defensive forensic
stegolego 8.85354f6 Simple program for using stegonography to hide data within BMP images. stego
stegosip 11.5cda6d6 TCP tunnel over RTP/SIP. tunnel networking stego
stegoveritas 1.10 Automatic image steganography analysis tool. stego
stegseek 1:v0.6.r10.g5896978 Lightning fast steghide cracker. stego
stegsolve 1.3 Steganography Solver. stego
stepic 0.4 A python image steganography tool. stego
zsteg v0.2.13.r5.g8fc7798 Detect stegano-hidden data in PNG and BMP. stego anti-forensic