Alexander Klimov Adi Shamir New Cryptographic Primitives Based on Multiword T-Functions. 1-15 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3017&spage=1 2004 conf/fse/2004 FSE db/conf/fse/fse2004.html#KlimovS04