Amr M. Youssef Guang Gong Cryptanalysis of a Public Key Cryptosystem Proposed at ACISP 2000. 15-20 2001 conf/acisp/2001 ACISP http://link.springer.de/link/service/series/0558/bibs/2119/21190015.htm db/conf/acisp/acisp2001.html#YoussefG01