@misc{Riv16y, author = { Ronald L. Rivest }, title = { Keys Under Doormats }, howpublished = { Invited ("surprise speaker") talk given at the Enigma Conference (San Francisco) }, date = { 2016-01-27 }, OPTmonth = { January 27, }, OPTyear = { 2016 }, urla = { conference }, urlb = { conference-media}, urlc = { video }, }