Upcoming Talks

	Martha Pollack AI: The Good, the Bad, and the Ugly. Wednesday, April 24, 2019 3:30pm – 5:00pm Filene Auditorium, Moore Building
	Cyrus Farivar 50 Years of Surveillance Law in America Monday, April 29, 2019 Filene Auditorium, Moore Hall, Dartmouth 5:00 p.m.

Past Talks


	Dr. Sarit Kraus Professor of Computer Science at Bar-Ilan University Attention Based Fraud Detection of Online Banking Transactions Thursday, February 14, 2019 Haldeman Center 041 4:00 PM
	Professor Amro Farid Associate Professor of Engineering, Thayer School of Engineering at Dartmouth Hetero-functional Graph Theory for Interdependent Smart City Infrastructures Wednesday, February 6, 2019 Life Sciences Center 201 5:00 PM
	Meredith Patterson Co-originator of the Language-theoretic Approach to Computer Security Computational Linguistics & Computer Security Tuesday, October 23, 2018 4:30pm-5:30pm Kemeny Hall 108
	Samantha Ravich Deputy Chair of the President's Intelligence Advisory Board *Cyber-Enabled Economic Warfare:* Why America’s Private Sector is now on the Front Lines of an Emerging Battlefield Thursday, September 27, 2018 4:30pm-6:00pm Haldeman 41 (Kreindler Conference Room)
	William Regli, Ph.D. Director of the Institute for Systems Research at the Clark School of Engineering, Professor of Computer Science at the University of Maryland at College Park A New Type of Thinking Friday, June 22, 2018 Life Sciences Center 105 11:00 AM
	Dr. Gautam Shroff Vice President, Chief Scientist, and Head of Research at Tata Consultancy Services Enterprise AI for Business 4.0: from Automation to Amplification Thursday, June 07, 2018 Haldeman 041 Kreindler Conference Room 3:30 PM
	John P Dickerson Assistant Professor, Department of Computer Science, University of Maryland Using Optimization to Balance Fairness and Efficiency in Kidney Exchange Monday, May 21, 2018 Kemeny Hall 008 3:30 PM
	Jeanne Shaheen U.S. Senator from New Hampshire Russian Interference in American Politics and Cyber Threats to Our Democracy Tuesday, February 20, 2018 Alumni Hall (Hopkins Center) 11:00 AM
	Lisa Monaco Former Homeland Security Advisor to President Obama In Conversation: Lisa Monaco, Fmr Homeland Security Advisor to President Obama Tuesday, February 13, 2018 Filene Auditorium (Moore Building) 5:00 PM Sponsored by The Dickey Center for International Understanding
	John Stewart Sr. Technical Leader, Cyber Security, EPRI Securing Grid Control Systems Friday, January 12, 2018 Sudikoff L045 Trust Lab 12:00 Noon
	M. Todd Henderson Professor of Law, University of Chicago Hacking Trust: How the Social Technology of Cooperation Will Revolutionize Government Thursday, January 11, 2018 5:00pm-6:30pm Room 003, Rockefeller Center Sponsored by: Rockefeller Center
	Dr. Elizabeth Bowman U.S. Army Research Laboratory Artificial Intelligence, Machine Learning and Information: Army Social Computing Research Tuesday, December 5, 2017 Haldeman 041 Kreindler Conference Room 4:00 PM
	Dr. Fabio Pierazzi Royal Holloway University of London Network Security Analytics for Detection of Advanced Cyberattacks Tuesday, November 28, 2017 Sudikoff Trust Lab (L045) 12:30 PM
	V.S. Subrahmanian Dartmouth Distinguished Professor in Cybersecurity, Technology, and Society Bots, Socks, and Vandals Tuesday, November 14, 2017 Carson L01 5:00 PM
	Rand Beers ('64) Big Data, the Internet, and Social Media: The Road to the November 2016 Election Wednesday, November 8, 2017 Haldeman 41 (Kreindler Conference Hall) 4:30 PM
	Wanna See Something REALLY Scary? ISTS Looks at the Dark Web on Halloween Night Tuesday, October 31, 2017 Sudikoff 045 Trust Lab (dungeon) 7:30 PM - RSVP Space is Limited
	Salvatore J. Stolfo Columbia University A Brief History of Symbiote Defense Tuesday, October 31, 2017 Rockefeller 003 5:00 PM
	A Nation Under Attack: Advanced Cyber-Attacks in Ukraine Thursday 6 April 2017, Oopik Auditorium 5:30 PM Video of Roman's and Oleksii's presentations https://youtu.be/HgDbpTiTFdw

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Institute for Security, Technology, and Society
Dartmouth College
6211 Sudikoff Laboratory
Hanover, NH 03755 USA
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Detection of Digital Tampering

Project Summary

The rapid increase in low-cost and sophisticated digital technology has made it remarkably easy to manipulate digital audio, image, and video. Coupled with vague legal definition as to the admissibility of digital media into evidence, it is essential that we develop techniques for authenticating digital material. We propose to: 1. Develop novel statistical models that embody the characteristics of "natural" signals/images. 2. Use these models in the development of techniques for determining the authenticity of digital signals/images.

Steganography: we have finished the porting of the steganography detection code from MatLab to C++, have fully tested this code and are working with United Devices to run this code on a massively distributed system. The goal is to find web pages that have suspicious activity.

Computer Graphics or Natural: we completed work on a new technique to distinguish between computer graphics and natural photographs. This work may be helpful in combating purportedly computer-generated child pornography.

Digital Tampering: we have completed development of three novel techniques for detecting various forms of digital tampering.

Voice Authentication: we have preliminary results that show that some of our image-based work extends nicely to audio. Specifically, we have developed techniques for distinguishing between natural and computer generated voices, and are working on extending this work to authenticate speakers from unscripted text.

Project Lead: Hany Farid