Abstract: Because some of the existing trust evaluation model uses the method of linear weighted sum to measure the trust, it may appear a dimension index information is very high, while the other dimension index information is relatively low, thus there is no comprehensive information for computing the trust, and it makes serious impacts on the accuracy and effectiveness of the model to compute the trust evaluation for nodes. For the shorting of the model, the paper proposed a mutual trust matrix evaluation model based on reputation and cooperation. We evaluated the reputation of the nodes by adopting two-tuplc linguistic information and evaluated the cooperation of the nodes by adopting date measurement,thus we concluded the mutual trust evaluation of the nodes. At last,the paper compared the model with the mode of linear weighted by analysis of simulation experiment, it appears that the proposed model can suppress the malice node's attacking and improve the efficiency for executing a plan of the nodes.

Key words: Trust, Mutual trust evaluation, Reputation, Cooperation