Method for establishing peer-to-peer network storage data trust model

Abstract

The invention discloses 'a method for establishing a peer-to-peer network storage data trust model', relates to the technical field of distributed storage security, and has a wide application prospect in the field of peer-to-peer network storage. The method is characterized in that: aiming at the characteristic of the current trust model which is vulnerable to a 'wash bottom' attack because a fixed trust value is endowed to the node of a newly added network, a method for dynamically configuring node initial values is provided; and simultaneously, a storage trust value concept and a data read trust value concept are provided for improving the flexibility of a trust model in the field of network storage, and the proportion of the two trust values in a final result is regulated by storing a preference factor. Compared with other peer-to-peer network storage data trust models, the peer-to-peer network storage data trust model is more flexibly configured and has a wider application range. A simulation experiment shows that the model has a higher transaction success rate than the classical EigenTrust trust model under large-scale 'wash bottom' attacks.

Description

Technical field [0001] The present invention is an information security solution based on a trust mechanism in network storage, which resists malicious attacks in network storage by establishing a trust relationship between storage nodes and a selection method of storage nodes, and belongs to distributed data storage security technology field. Background technique [0002] With the popularization of the Internet and the continuous advancement of Web2.0 technology, all kinds of information on the Internet have shown explosive growth. The traditional information storage technology can no longer meet the needs of massive data storage. Resource construction of a peer-to-peer network storage system has become a research hotspot in current network storage. However, due to the openness and dynamics of the peer-to-peer network and its autonomous management mode, it is inevitable that there will be a large number of malicious nodes and fraudulent behaviors in the peer-to-peer networ...

AI Technical Summary

Problems solved by technology

Although there are many researches on the trust model at present, most of the known peer-to-peer network trust models set the trust value of newly joined nodes as a constant. Although this will allow new users to obtain trading opportunities, it will lead to malicious nodes. Clear previous malicious records by re-registering users, and carry out "washing" attacks ("washing" attacks-according to the characteristics of most trust models giving new users a higher trust value, the situation that the trust value of malicious nodes decreases after doing evil Next, in order to continue to do evil, and log in to the system again by registering a new user, obtain a higher trust value, and then continue to do evil)

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