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Method and device for trusted storage of local data

A technology for storage devices and local data, applied in secure communication devices, digital data protection, digital transmission systems, etc., can solve problems such as being unable to prevent edge devices from actively modifying, deceiving cloud devices, and increasing application costs.

Active Publication Date: 2022-04-12
中科边缘智慧信息科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The trusted storage and distribution of data based on the above methods have the following problems: First, the digital certificate mechanism based on CA certification and PKI management is not suitable for massive edge computing devices, and at the same time increases the application cost; second, the security of CA and PKI institutions Third, it is impossible to prevent edge devices from actively modifying recorded or published data, thereby deceiving cloud devices

Method used

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  • Method and device for trusted storage of local data
  • Method and device for trusted storage of local data
  • Method and device for trusted storage of local data

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] figure 1 A specific embodiment of a method for trusted local data storage of the present invention is shown, including the following steps:

[0034] Step 1: Interconnect the edge storage devices of all edge computing devices to form a storage device network. In this example, if figure 2 As shown, the P2P network is used to interconnect all the edge storage devices, so that the mesh network interconnection and data interaction between the storage device networks, so that information can be shared synchronously between the storage device networks.

[0035] Step 2: regularly create a data file for storing the data stored locally by each edge storage device. The data file includes the data stored locally at the current moment and the summary of the data file calculation at the previous time. For the current data file calculation summary, a The data files of the edge storage device at each moment are connected to form a chain-shaped data storage set. In this embodiment, ...

Embodiment 2

[0048] The present invention also provides a trusted storage device for local data, including the following modules:

[0049] Build a storage device network module: used to interconnect the edge storage devices of all edge computing devices to form a storage device network;

[0050] Storage record set formation module: used to regularly create data files for the data stored locally by each edge storage device. The data files include the data stored locally at the current moment and the summary generated by the data file at the previous moment. For the current data The files are summarized, and the data files of an edge storage device at each moment are connected to form a chain of data storage sets;

[0051] Credible evidence set formation module: used to periodically collect and summarize the summaries of data files on each edge storage device to form a piece of credible evidence, and combine the credible evidence at the current moment with the summary of the credible evidenc...

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Abstract

According to the method and the device for credibly storing the local data provided by the invention, the storage devices are interconnected, and the files stored by the local storage devices at all moments are connected through the abstracts to form the chain-shaped data storage set; in addition, abstracts of data files on the edge storage devices are regularly collected and summarized to form credible evidence records, and the credible evidence records form a chain-shaped credible evidence set through the abstracts of the credible evidence records at all moments. The data files stored at all moments are associated, so that the data file modification cost is increased; and due to the chain-shaped evidence set, the re-published summary information cannot replace the published credible evidence record, so that the credibility of the stored data is realized. Compared with a traditional method, the method completely gets rid of limitation of traditional centralized authentication and user authority management, so that the number of storage devices is not limited, and the method can be used for a large-scale network.

Description

technical field [0001] The invention belongs to the field of data and network security, and in particular relates to a method and device for trusted storage of local data. Background technique [0002] With the development of IoT-related technologies, new concepts centered on edge computing are changing the existing Internet architecture of centralized data storage centered on cloud computing. It mainly includes two aspects: one is that massive terminal devices and their sensors generate a large amount of data all the time, which cannot be transmitted to the cloud in time due to the limitation of network bandwidth; the other is the intelligent processing requirements at the edge end, which cannot tolerate the delay brought by cloud processing. The subsequent Internet storage structure will be a collaborative storage structure of "edge storage + cloud storage". But then, the credibility of data stored at the edge, that is, how to prevent data from being tampered with, has be...

Claims

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Application Information

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IPC IPC(8): H04L9/40G06F21/62H04L67/1097H04L67/104
Inventor 李新明张春生王志淋厉海燕
Owner 中科边缘智慧信息科技(苏州)有限公司