Quantifying Mix Network Privacy Erosion with Generative Models

Modern mix networks improve over Tor and provide stronger privacy guarantees by robustly obfuscating metadata. As long as a message is routed through at least one honest mixnode, the privacy of the users involved is safeguarded. However, the complexity of the mixing mechanisms makes it difficult ...

Embedded Device Security, BadUSB, Car Hacking at Black Hat

LAS VEGAS — At the risk of diving headfirst into the Internet of Things fray, embedded device security emerged as a shiny new penny during last week’s Black Hat and DEF CON festivities. Firmware is the new hacker black, and everything from USB sticks, to home routers, to automobiles is in play fo...

Dan Geer: Security at the Forefront of Policy Decisions

LAS VEGAS – Dan Geer carried his version of computer security’s Ten Commandments to a rapt Black Hat 2014 audience today, offering up 10 personal recommendations and observations related to the current state of security in the context of government surveillance and eroding privacy. Adorned in...