New Size-Reduced Visual Secret Sharing Schemes with Half Reduction of Shadow Size.

Ching-Nung Yang Tse-Shih Chen New Size-Reduced Visual Secret Sharing Schemes with Half Reduction of Shadow Size. 19-28 2005 conf/iccsa/2005-1 ICCSA (1) http://dx.doi.org/10.1007/11424758_3 db/conf/iccsa/iccsa2005-1.html#YangC05