Steganography

Steganographic file system

Steganographic file systems are a kind of file system first proposed by Ross Anderson, Roger Needham, and Adi Shamir. Their paper proposed two main methods of hiding data: in a series of fixed size files originally consisting of random bits on top of which 'vectors' could be superimposed in such a way as to allow levels of security to decrypt all lower levels but not even know of the existence of any higher levels, or an entire partition is filled with random bits and files hidden in it. In a steganographic file system using the second scheme, files are not merely stored, nor stored encrypted, but the entire partition is randomized - encrypted files strongly resemble randomized sections of the partition, and so when files are stored on the partition, there is no easy way to discern between meaningless gibberish and the actual encrypted files. Furthermore, locations of files are derived from the key for the files, and the locations are hidden and available to only programs with the passphrase. This leads to the problem that very quickly files can overwrite each other (because of the Birthday Paradox); this is compensated for by writing all files in multiple places to lessen the chance of data loss. (Wikipedia).

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CERIAS Security: John Oritz: Steganography 2/6

Clip 2/6 Speaker: John Oritz · SRA International Steganography is a discipline of computer science whose aim is to conceal the existence of information. Steganography synergizes various technologies including data compression, digital signal processing, information theory, data networks,

From playlist The CERIAS Security Seminars 2008

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CERIAS Security: John Oritz: Steganography 6/6

Clip 6/6 Speaker: John Oritz · SRA International Steganography is a discipline of computer science whose aim is to conceal the existence of information. Steganography synergizes various technologies including data compression, digital signal processing, information theory, data networ

From playlist The CERIAS Security Seminars 2008

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CERIAS Security: John Oritz: Steganography 3/6

Clip 3/6 Speaker: John Oritz · SRA International Steganography is a discipline of computer science whose aim is to conceal the existence of information. Steganography synergizes various technologies including data compression, digital signal processing, information theory, data networks,

From playlist The CERIAS Security Seminars 2008

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CERIAS Security: John Oritz: Steganography 4/6

Clip 4/6 Speaker: John Oritz · SRA International Steganography is a discipline of computer science whose aim is to conceal the existence of information. Steganography synergizes various technologies including data compression, digital signal processing, information theory, data networks,

From playlist The CERIAS Security Seminars 2008

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CERIAS Security: John Oritz: Steganography 5/6

Clip 5/6 Speaker: John Oritz · SRA International Steganography is a discipline of computer science whose aim is to conceal the existence of information. Steganography synergizes various technologies including data compression, digital signal processing, information theory, data networ

From playlist The CERIAS Security Seminars 2008

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Steganography Tutorial - Hide Messages In Images

Steganography is the hiding of a secret message within an ordinary message and the extraction of it at its destination. Steganography takes cryptography a step further by hiding an encrypted message so that no one suspects it exists. Ideally, anyone scanning your data will fail to know it

From playlist Ethical Hacking & Penetration Testing - Complete Course

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Steganography Tutorial | How To Hide Text Inside The Image | Cybersecurity Training | Edureka

🔵 Edureka Cyber Security Masters Program: https://bit.ly/3pfHHIN Cyber Security Course: https://www.edureka.co/cybersecurity-certification-training This Steganography Tutorial by Edureka will help you understand how to hide data from plain sight using various techniques and tools. Below i

From playlist Cyber Security Training for Beginners | Edureka

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DEFCON 15: Real-time Steganography with RTP

Speaker: I)ruid Computer Academic Underground Real-time Transfer Protocol (RTP) is used almost ubiquitously by Voice over IP technologies to provide an audio channel for calls. As such, it provides ample opportunity for creation of a covert communications channel due to it's very nature a

From playlist DEFCON 15

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Blackhat Europe 2010: Steganography and Vulnerabilities in Popular Archives Formats 1/8

Clip 1/8 Speakers: Mario Vuksan, Tomislav Pericin & Brian Karney Exploiting archive formats can lead to steganographic data hiding and to processing errors with serious forensic consequences. These formats are very interesting as they are commonly found on every PC, Apple or Linux machine

From playlist Black Hat Europe 2010

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DEFCON 13: Lost in Translation

Speaker: Christian Grothoff This presentation describes the possibilities of steganographically embedding information in the "noise" created by automatic translation of natural language documents. An automated natural language translation system is ideal for steganographic applications,

From playlist DEFCON 13

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DEFCON 16: StegoFS

Speaker: James Shewmaker, Bluenotch This talk will reintroduce classic steganographic techniques to use with serializing, watermarking, or stashing your data in the latest Internet meme. Why not let everyone who is forwarding yet another painful nut-shot AFHV clip store your data for you?

From playlist DEFCON 16

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Stereolab "Ticker Tape Of The Unconscious" (Montage)

Taken from the album "Dots And Loops".

From playlist the absolute best of stereolab

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CERIAS Security: John Oritz: Steganography 1/6

Clip 1/6 Speaker: John Oritz · SRA International Steganography is a discipline of computer science whose aim is to conceal the existence of information. Steganography synergizes various technologies including data compression, digital signal processing, information theory, data networks,

From playlist The CERIAS Security Seminars 2008

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22C3: Syscall proxying fun and applications

Speaker: csk Introduction to syscall proxying and applications for in the wild exploitations This talk is about how using syscall proxying technique for envolved attacks or other distributed applications. It includes source code examples like shellcodes, tools and a poc rootkit using thi

From playlist 22C3: Private Investigations

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26C3: Lightning Talks - Day 1 9/12

Clip 9/12 Speakers: Oliver Pritzkow, Sven Guckes 4 minutes of fame 4 minutes for every speaker. Learn about the good, the bad, and the ugly - in software, hardware, projects, and more. For more information go to: http://events.ccc.de/congress/2009/Fahrplan/events/3563.en.html

From playlist 26C3: Here be dragons day 1

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Blackhat Europe 2010: Steganography and Vulnerabilities in Popular Archives Formats 2/8

Clip 2/8 Speakers: Mario Vuksan, Tomislav Pericin & Brian Karney Exploiting archive formats can lead to steganographic data hiding and to processing errors with serious forensic consequences. These formats are very interesting as they are commonly found on every PC, Apple or Linux machine

From playlist Black Hat Europe 2010

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Common file types in Adobe Photoshop Ep6/33 [Adobe Photoshop for Beginners]

In this video I want to discuss a few common files types you will need to be aware of as you begin to use Photoshop. Its important to keep in mind that Photoshop can open and save multiple file formats. Enjoy **FYI** In this video tutorial I will be using Adobe Photoshop CC 2014 for mac

From playlist TastyTuts: Learn Adobe Photoshop | CosmoLearning.org

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Lecture 32: Steganography (hidden messages) - Richard Buckland UNSW

Extension lecture introducing steganography (hidden messages). Security via obscurity. Hidden messages in book Godel Escher Bach. In film Starship Troopers. In games. In cryptography. In teaching. Digital watermarking. SETI. Are we in a simulation? Extension lectures are for firs

From playlist CS1: Higher Computing - Richard Buckland UNSW

Related pages

Rubber-hose cryptanalysis | Encryption | TrueCrypt | StegFS | Steganography | GBDE | Key (cryptography) | Steganography tools | Filesystem-level encryption