V. Vinod Arvind Narayanan K. Srinathan C. Pandu Rangan Kwangjo Kim On the Power of Computational Secret Sharing. 162-176 http://springerlink.metapress.com/openurl.asp?genre=article&issn=0302-9743&volume=2904&spage=162 2003 conf/indocrypt/2003 INDOCRYPT db/conf/indocrypt/indocrypt2003.html#VinodNSRK03