A data access method for distributed data storage, and an information data processing terminal
A technology of distributed data and data access, applied in electrical digital data processing, input/output process of data processing, digital data protection, etc., can solve the problems of long encryption time, long data storage and acquisition time, etc.
Active Publication Date: 2022-04-05
XIDIAN UNIV
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[0004] In summary, the problems in the prior art are: The existing technology uses encryption to ensure data security, but the current data storage capacity is usually too large, so in terms of data storage time, the encryption time is too long and the data storage and acquisition time is too long
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[0059] In order to make the object, technical solution and advantages of the present invention more clear, the present invention will be further described in detail below in conjunction with the examples. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.
[0060] The present invention aims at the data storage method of the distributed data storage system, considering that the data leakage problem is already the biggest challenge faced by the current data storage system, and proposes a data storage method considering data access efficiency and security. The concept of safe distance proposed by the present invention not only ensures data security, but also considers the emphasis of different user groups on data security; in order to minimize data access time, a data access node selection algorithm is proposed, while ensuring data security Minimize data access time. The simulat...
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The invention belongs to the technical field of computer software, and discloses a data access method for distributed data storage and an information data processing terminal, which divide user data into blocks, and then store these data blocks in different storage nodes, and satisfy any two requirements. The storage distance of a data block is greater than a given value; the nodes are arranged in ascending order according to the unit data access time, and the data storage nodes are selected in turn under the constraint of the safety distance to form the optimal K-distance topology subgraph. Place data on the distance topology subgraph. Since the data is distributed and stored in storage nodes with different geographical locations, the attacker has no way of knowing where the data is placed, which ensures the security of user data. Through Omnet++ simulation platform and Matlab simulation platform, the K-DDS algorithm and other algorithms are compared under different network scale topologies, and the effectiveness of the algorithm is verified in simulating the actual network Internet2 topology.
Description
technical field [0001] The invention belongs to the technical field of computer software, and in particular relates to a data access method for distributed data storage and an information data processing terminal. Background technique [0002] At present, the existing technologies commonly used in the industry are as follows: With the rapid development of information technology, the Internet of Things has become one of the most attractive fields for researchers because of its large-scale information system and huge data generation. The increasing amount of data poses a challenge to the data storage system. In order to solve the problems of poor scalability, low storage efficiency and low security of the traditional data storage system; the data storage system - cloud storage system has been developed unprecedentedly. Cloud storage is a new concept extended and developed on the concept of cloud computing. It is an emerging network storage technology; Storage devices work to...
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IPC IPC(8): G06F3/06G06F21/62
CPCG06F3/062G06F3/067G06F21/6218
Inventor 齐小刚胡秋秋刘立芳冯海林胡绍林
Owner XIDIAN UNIV