Reputation mechanism based on multi-path routing protocol in ad hoc networks

Abstract

Based on the multi-routing protocols and the reed-solomon error-correcting coding scheme,a data transmission method was presented,in which,round-encryption and round-signature were not needed. Data packets were all encoded by RS codes and cut into pieces before sending in different paths. After receive all the pieces of a data packet,the destina-tion node could judge whether a malicious modification had been occurred,if so,the malicious node would be found out or be located in a malicious-node-group by a detecting process. Then by fully using the information gotten from detecting process,a reputation mechanism was proposed to resist the modification attacks. When implement it,the Bayesian ap-proach was used to evaluate a node’s reputation. The simulation results show that it can react to the attacks more quickly and accurately.

Keywords

• ad hoc networks;reputation mechanism;internal attacks;malicious-node-group