12:10 Sat, 28 Jan 2006 PST -0800

The DNS Dead Drop

Storing Arbitrary Messages in Remote DNS Caches

A few months ago, I read Dan Kaminsky's presentation slides, Attacking Distributed Systems: The DNS Case Study. In the presentation, Kaminsky documents a method of implementing single bit data transfer with nothing more than:

After a particularly stressful week, I decided I needed to work on something fun -- an implementation of a DNS-based dead drop messaging system, utilizing Kaminsky's ideas.

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