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Monday, May 13, 2019 2:30 pm - 2:30 pm EDT (GMT -04:00)

CrySP Speaker Series on Privacy: Sarah Roberts, UCLA

Doing the Internet's Dirty Work: Commercial Content Moderators as Social Media's Gatekeepers

Faced with mounting pressures and repeated, very public crises, social media firms have taken a new tack since 2017: to respond to criticism of all kinds and from numerous quarters (regulators, civil society advocates, journalists, academics and others) by acknowledging their long-obfuscated human gatekeeping workforce of commercial content moderators.

Thursday, January 17, 2019 10:30 am - 10:30 am EST (GMT -05:00)

Seminar • Cryptography, Security, and Privacy (CrySP) — Designing Robust Defenses for Modern Payment Systems

Nolen Scaife, PhD candidate
Florida Institute for Cybersecurity, University of Florida

Credit, debit, and prepaid cards have dominated the payment landscape for decades, empowering the economy. Unfortunately, these legacy systems were not designed for today's adversarial environment, and deployment of new technologies is slow, expensive, and difficult to adopt. 

Friday, November 2, 2018 2:30 pm - 2:30 pm EDT (GMT -04:00)

CrySP Speaker Series on Privacy - Fantastically Bad Laws and Where to Find Them

Nate Cardozo, Electronic Frontier Foundation

Encryption is legal in the Five Eyes countries, thanks to our victory in what’s come to be known as the Crypto Wars of the 1990s. Computer security research is increasingly viewed as a boon rather than a scourge. But time is a circle and once again, law enforcement and policy makers around the world are calling for all that to change. In this presentation, I will discuss in brief the history of the first Crypto Wars, and the state of the law in 2018.
Monday, October 22, 2018 2:00 pm - 2:00 pm EDT (GMT -04:00)

Anonymization with Differential Privacy / Secure Data Structures with Intel SGX

Text Anonymization with Differential Privacy

Ben Weggenmann, SAP Security Research 

Huge amounts of textual data are processed every day using text mining and information retrieval techniques to assist us with analyzing, organizing and retrieving text documents. In many cases, it is desirable that the authors of such documents remain anonymous: They can reveal sensitive information about its authors, and critical news articles or customer feedback could cause retaliation or worsening business relations.
Tuesday, September 25, 2018 3:00 pm - 3:00 pm EDT (GMT -04:00)

Evaluating the Australian Government’s Legislative Response to the Encryption Debate

Adam Molnar, Deakin University

Abstract

The Australian Government released a proposed draft of legislation that would expand national security and law enforcement agencies’ access to encrypted communications on August 15, 2018. The draft, entitled the ‘Telecommunications and Other Legislation Amendment (Assistance and Access) Bill 2018’ follows after several months of consultations.

Thursday, August 9, 2018 3:00 pm - 3:00 pm EDT (GMT -04:00)

When A Small Leak Sinks A Great Ship: Deanonymizing Tor Hidden Service Users Through Bitcoin Transactions Analysis

Aiman Erbad, Qatar University

With the rapid increase of threats on the Internet, people are continuously seeking privacy and anonymity. Services such as Bitcoin and Tor were introduced to provide anonymity for online transactions and Web browsing. Due to its pseudonymity model, Bitcoin lacks retroactive operational security, which means historical pieces of information could be used to identify a certain user.