Stanley Chow Philip A. Eisen Harold Johnson Paul C. van Oorschot A White-Box DES Implementation for DRM Applications. 1-15 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2696&spage=1 2002 conf/ccs/2002drm Digital Rights Management Workshop db/conf/ccs/ccsdrm2002.html#ChowEJO02