Kevin S. Bauer Damon McCoy Dirk Grunwald Tadayoshi Kohno Douglas C. Sicker Low-resource routing attacks against tor. 11-20 2007 WPES http://doi.acm.org/10.1145/1314333.1314336 conf/wpes/2007 db/conf/wpes/wpes2007.html#BauerMGKS07