Jongsung Kim Guil Kim Sangjin Lee Jongin Lim Jung Hwan Song Related-Key Attacks on Reduced Rounds of SHACAL-2. 175-190 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=3348&spage=175 2004 conf/indocrypt/2004 INDOCRYPT db/conf/indocrypt/indocrypt2004.html#KimKLLS04