Email(PGP)/Jabber(OTR): kyprizel @ gmail.com
You still can find me at livejournal and twitter. My flickr.
From time to time I make writeups for interesting CTF tasks at smokedchicken.org.

My presentations for Defcon Russia:
Experience of participating in "A month for searching for Yandex vulnerabilities" [video]


My code on GitHub.

Some another stuff:

Nginx testcookie DDoS mitigation module
Patch for BoNeSi, adds packet fragmentation support
RSA keyfinder script for IDA
Patch for "decompyle" Python byte-code decompiler
SHA1 length extension attack example
RSA nopadding plaintext attack example