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This paper proposes a method to identify network vulnerability based on Monte Carlo sampling and game theory. A two-player (attacker vs. immunizer), non-cooperative, constant-sum game model is used to obtain a mixed Nash equilibrium strategy. In this strategy, each node has a probability of being selected by the immunizer. These probabilities reflect the vulnerabilities of network nodes. With the...
The creditability and reliability of Web services is becoming an important factor to SOAs. In this paper, a cloud trust model is proposed to maintain the trustiness of services. Trust cloud transform which can reduce the trust date transferred is presented. Trust cloud operators which use cloud drops as the basic processing units are defined. The combination and update of the trust cloud are proposed...
This paper combines the results of research on social psychology, and has designed a trust model for rumor spreading. It is considered that when information exchanges between people, the trust of information is related to the interpersonal closeness. In addition, this paper uses Monte Carlo method to find the key source nodes in rumor spreading by comparing the total number of spread nodes and spreading...
With the development of Internet-based computing, we can no longer trust them to sustain the applications we depend on because IT infrastructure technologies fail to keep pace with emerging threats. Direct Anonymous Attestation (DAA) enables remote authentication of a user while preserving privacy under the user's control. The existing protocols for direct anonymous attestation of Trusted Platform...
There are rare researches on how to evaluate trust models. Notation of trust is extended to make trust models comparable. An evaluation framework of trust model is proposed. The actions?? parameters are described. Two evaluation metrics are designed to present the performance of trust models objectively. Experiments are implemented to get the evaluation metrics of Josang model and Beth model. The...
This paper presents a trust-based model for secure network admission and trustworthy routing. Firstly, a dynamic routing trust model based on trust relationship and routing behaviors is brought forward. The model not only supports trust network connection, but also gives a comprehensive assessment to the network security and efficiency affected by router access according to routers' interactive behaviors...
An electronic voting scheme based on blind signature is proposed. The scheme distributes the powers to more administrators. When several administrators work together to organize the voting, the system will be more secure. On the other hand, we try to simplify the realization mechanism of the vote to decrease the communication complexity of the voting. This scheme can be applied for its security and...
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