Image steganography
A practical overview of spatial methods, JPEG-domain embedding, adaptive steganography, payload limits and tools for hiding information in images.
Read the guideWelcome! My name is Daniel Lerch, and this site is dedicated to steganography and steganalysis: the study of hiding information and detecting its presence.
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Stego image
The images above look identical, but one contains hidden information. This illustrates the central problem behind image steganography and steganalysis: how to conceal information without revealing its presence, and how to detect the traces it may leave behind.
Start with the reference pages on image steganography and image steganalysis for an overview of techniques, tools, payload, formats and detectability.
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Image steganalysis
A reference on detecting hidden messages in images, from simple LSB attacks to JPEG steganalysis, machine learning and Cover Source Mismatch.
Read the guideStegoRank
Tracks the current state of image steganography techniques and tools, with a particular focus on how detectable they are under practical steganalysis.
Explore StegoRankStegoLab
Research implementations and practical tools for steganography, steganalysis and watermarking. It includes Aletheia, an open source tool for detecting hidden messages in images, and HStego, a tool for hiding data in bitmap and JPEG images.
Explore StegoLabPublications
My research papers, preprints and related materials on steganography, steganalysis, watermarking and information security.
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