Indeed it was. Wang's breakthrough work [1,2] broke most of the common hash functions at the time, and later also SHA-1 [3]. The SHA-3 competition was motivated

Indeed it was. Wang's breakthrough work [1,2] broke most of the common hash functions at the time, and later also SHA-1 [3]. The SHA-3 competition was motivated by this streak of new successful attacks. [1] http://eprint.iacr.org/2004/199 http://eprint.iacr.org/2004/199 [2] http://www.iacr.org/cryptodb/archive/2005/EUROCRYPT/2868/2868.pdf http://www.iacr.org/cryptodb/archive/2005/EUROCRYPT/2868/286... [3] http://link.springer.com/chapter/10.1007%2F11535218_2 http://link.springer.com/chapter/10.1007%2F11535218_2