@Misc{Riv11a,
author = { Ronald L. Rivest },
title = { The growth of cryptography },
howpublished = { Talk given February 8, 2011 at my Killian award lecture. },
date = { 2011-02-08 },
urla = { video },
urlb = { press },
OPTmonth = { February 8, },
OPTyear = { 2011 },
}