Help needed with identying crypto paper

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Feb 1 12:25 [raw]

I am trying to locate paper or presentation, about analysing and deanonymising remailer messages. Author analysed many messages and by analysis of metadata he performed kind of "traffic analysis" identyfing "circles of interest" exchanging messages through remailers. Also he found some fake PGP messages and various interesting information in metadata. Paper contained example titles of message series and statistics in graphical form. Few formats of encrypted message titles were analysed, like hash based titles and single-block encryption based. The conclusion of the paper / presentation was that remailers are dying and they have only small but perseverant group of users. I can't remember paper /presentation title or author. Hel will be very appreciated.

[chan] Crypto-Anarchist Federation
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