Ryusuke Mayuzumi Tetsuya Kojima A Blind Digital Steganography Scheme Based on Complete Complementary Codes. 45-48 2011 IIH-MSP http://doi.ieeecomputersociety.org/10.1109/IIHMSP.2011.70 conf/iih-msp/2011 db/conf/iih-msp/iih-msp2011.html#MayazumiK11