Gilles Piret Jean-Jacques Quisquater Security of the MISTY Structure in the Luby-Rackoff Model: Improved Results. 100-113 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3357&spage=100 2004 conf/sacrypt/2004 Selected Areas in Cryptography db/conf/sacrypt/sacrypt2004.html#PiretQ04