关键词: BGP，前缀劫持攻击，信誉

Abstract: Prefix hijacking faced by 13GP can highly disrupt the Internet network reliability. By introducing trust tech- nology, the paper proposed an autonomous system prefix reputation model AS-PRM to evaluate the trust of an autono- mows system (AS) originating the prefix belonging to the AS. An AS selectively prefers the prefix route announcement originated by the AS with higher prefix reputation. As a result, prefix hijacking can be suppressed. According to multi- ple prefix hijacking detection systems' results,AS-PRM model computes AS prefix reputation based on the beta reputa- tion system, after considering false positives and false negatives of detection systems, and updates prefix reputation fol- lowing the "slowly rising, quickly falling" principle. In the end, the model validity was verified by simulation experi- ments.

Key words: BGP, Prefix hijacking, Reputation