Marc Stevens Alexander Sotirov Jacob Appelbaum Arjen K. Lenstra David Molnar Dag Arne Osvik Benne de Weger Short Chosen-Prefix Collisions for MD5 and the Creation of a Rogue CA Certificate. 55-69 2009 CRYPTO http://dx.doi.org/10.1007/978-3-642-03356-8_4 conf/crypto/2009 db/conf/crypto/crypto2009.html#StevensSALMOW09