Kozo Banno Shingo Orihara Takaaki Mizuki Takao Nishizeki Best Security Index for Digital Fingerprinting. 169-177 2006 89-A IEICE Transactions 1 http://dx.doi.org/10.1093/ietfec/e89-a.1.169 db/journals/ieicet/ieicet89a.html#BannoOMN06