Soichi Furuya Kouichi Sakurai Risks with Raw-Key Masking - The Security Evaluation of 2-Key XCBC. 327-341 2002 conf/icics/2002 ICICS http://link.springer.de/link/service/series/0558/bibs/2513/25130327.htm db/conf/icics/icics2002.html#FuruyaS02