PPT-Complexity-theoretic Foundations of Steganography and Cover

Daniel Apon Todays Talk Portrait of an invisible cake Hopefully we have a good handle on this Alice and Bob want to jointly compute a function without giving away their secrets Were baking a steganographic cake. 3);where2isthebitsthatarecommunicatedatthecurrentstepandQ(2s=3)thenumberofbitsthatwillbecommunicatedinthenext(recursive)stepinworstcase.AlsonotethatQ(1)=0.ApplyingtheaboveinequalityrepeatedlywegetQ(s) Joseph Szigeti. (source list). Overview. Why BPCS was developed. How it works. Several implementations. Kawaguchi, Eason. Beaullieu. , . Crissey. , . Smith. Stoleru. Results. Possible improvements. Steganography. 1Alsocalledthecomplexity-theoretic(BernsteinandVazirani,Quantumcomplexitytheory)orstrong(AroraandBarak,Computationalcomplexity:amodernapproach)formoftheChurchTuringThesis.2Deutsch,Constructort . in . digital images. . Copyright . protection. . “. S. ignature” or “watermark” of the creator/sender. . Invisible. . Hard to remove. . Robust to processing. . 64 bits are likely enough. The . Art of Hiding Messages. introduction. Word . steganography. . comes from the . Greek. means . covered. or . secret. writing. . word . steganos. = “covered”. word . graphie. = “writing”. With an emphasis on audio techniques.. By: Eric Hernandez. Discussion overview. What is . steganography. ?. Definition. Do’s/Don’ts. Steganographic. techniques. Images. Audio. Other applications. Diacritics . حركات . Based steganography . Mohammed . Aabed. Sameh. . Awaideh. Abdul-. Rahman. . Elshafei. Arabic Diacritics . حركات. . Based . Steganography . Steganography is . the ability of hiding information in redundant bits of any unremarkable cover media. -Deepti Reddy. Steganography. 1. CS691 Summer 2009. What is it?. CS691 Summer 2009. 2. The art and science of writing hidden messages in such a way that no one, apart from the sender and intended recipient, suspects the existence of the message.. Cryptographic Anonymity Project. Alan Le. A little background. Steganography originates from historical times. (invisible ink as an example). Steganography is the practice of concealing secret data in non-secret data. The “carrier” should look unsuspicious. . The art of hiding stuff in stuff so others don’t find your stuff. &. A little about my Botnet . Stego. C&C project. Some information drawn from following articles:. Exploring . Steganography:Seeing. SAT Solver Performance. Ed Zulkoski. 1. , . Ruben . Martins. 2. , . Christoph M. . Wintersteiger. 3. , . Robert. Robere. 4. , . Jia. . Liang. 1. , . Krzysztof . Czarnecki. 1. , . and Vijay . Ganesh. using LSB embedding . Master’s Project Proposal. By. Manchu Viswam. Introduction. Steganography is the art of hiding information in ways that prevent the detection of hidden . messages. . Steganography combines Ancient Greek words steganos means “covered” and graphein means “writing.”. By: Eric Hernandez. Discussion overview. What is . steganography. ?. Definition. Do’s/Don’ts. Steganographic. techniques. Images. Audio. Other applications. Steganalysis. Overview. Specific audio example. Any attempt to hide information. Ancient Steganography. Greece – head tattoos. France – Tattoos on Messenger's backs. Mixing Fonts – printing presses. Micro Dots – Small ink dots. Jeremiah Denton – POW Morse Code with his eyes on international tv.