A Data Storage System Using Hierarchical Tree Structure to Control Access
A data storage system and structure control technology, which is applied in the direction of electrical digital data processing, data processing input/output process, instruments, etc., can solve the problem of not realizing fine-grained access control, etc., and achieve complete functions, high efficiency and simple operation. Effect
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[0028] Assume that there is a group G that needs to use the system designed by the present invention to implement a shared data storage system with fine-grained access control. There is an administrator in G who has access to all shared data {data1,...,data11} and all The user's control and management rights are responsible for establishing this data storage system to share data with the user group, and at the same time responsible for updating and maintaining this system. In the process of use, they respectively use the system building module, password generation module, password distribution module, data query module and system update module in this system in chronological order. The specific process is as follows:
[0029]1. First, the administrator determines the access level of all data {data1,...,data11}, which are divided into lv1, lv2 and lv3 from high level to low level, and the attribute set information includes {general category, literature and history, science and e...
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