1 A Collaboration Scheme for Making Peer-to-Peer Anonymous Routing Resilient Authors: X. Wang and J. Luo Source: 12th International Conference on Computer Supported Cooperative Work in Design, pp , 2008 Speaker: Shu-Fen Chiou ( 邱淑芬 )
2 Motivation AB G D C E F initiator responder a.mp3
3 Approach Initiator anonymous protocol. Using Friendly Neighbor-based Incentive (FNI) improve the fragile path. Re-encryption mechanism for replacing failed relay nodes to improve routing resilience.
4 FNI mechanism AB G D C E F initiator responder :excellent neighbor 0:colsed friend
5 Increase its rating value Increasing answering power. Increasing the number of edges. Increasing the amount of capacity used to service neighbors ’ queries. Increasing the length of period for servicing neighbors ’ queries.
6 Onion routing AB G D C E F initiator responder a.mp3 Onion A-G Onion G-D Onion D-F
7 Failed node AB G D C E F initiator responder a.mp3 Onion A-G Onion G-D Onion D-F Onion G-B Re-encryption key K D-B
8 Security analysis N: number of nodes in the system. F: fraction of malicious nodes that collaborates each other. L: number of relay nodes on a path. The probability a node x is the initiator I is:
9 Experimental results
10 Comments Mutual anonymous Security consider Re-encryption mechanism Initial rating