In this project, we focus on the researches of security on the application of Heterogeneous network. Our goals were to achieve trustworthy reputation system, to discover common friends, and to find lunch partner. We use private matching algorithm to achieve them.

　　We have finished a paper "A Trustable Reputation Scheme Based on Private Relationships" which is submitted to and accepted by "the 2009 International Conference on Advances in Social Networks Analysis and Mining" cooperated with ACM SIGCHI, IEEE computer society, etc. We have applied a patent "NETWORK REPUTATION SYSTEM AND ITS CONTROLLING METHOD THEREOF" in USA and will apply the same patent in Taiwan by August, 2009. We have finished a prototype "Lunch Partner: Find Someone to Have Lunch With" which will be demonstrated in the 2009 2nd iCAST joint conference. About technology transfer, we are focusing some Taiwan companies such as HGiga, Qware, TECO, and Hyweb Technology.