http://7fa6xlti73nrpxl6cykao4wp7g3bg4624ghrtdomlvkeivvwclv2iyad.onion/anonbib/date.html
Newman , Vipan R. Nalla, and Ira S. Moskowitz. In the Proceedings of Privacy Enhancing Technologies workshop (PET 2004), May 2004, pages 1-16. ( BibTeX entry ) · If we think about leaked anonymity as a covert channel between the sender Alice and the adversary Eve, then by measuring covert channel capacity we can get an upper bound on the amount of information Alice could leak.