Cloud Data Integrity Verification Method for Multi-Geographical Location Storage
A technology of data integrity and geographic location, applied in the field of information security, can solve the problems of low efficiency and high computational overhead, and achieve the effect of reducing the amount of computation, the amount of computation, and the amount of data transmitted.
Active Publication Date: 2017-06-13
XIDIAN UNIV
View PDF3 Cites 1 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
The element's PDP technology can only process static data, and the calculation overhead is large, and the efficiency is not high
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0051] Symbols and Abbreviations
[0052] F is the original file;
[0053] F' is the file obtained after symmetric encryption and adding redundant codes;
[0054] n is the block number of the ciphertext file;
[0055] s is the number of sections of each file;
[0056] k enc is the key value used for symmetric encryption;
[0057] k tag for k prf and sk r collective name;
[0058] k prf is the key value used to generate tags;
[0059] sk r The key value used by the data center to re-encrypt the label;
[0060] User is the file owner;
[0061] Provider is a cloud storage service provider;
[0062] Storage is a file storage server;
[0063] L is a landmark server that challenges the file storage server;
[0064] C is a set of file storage servers selected by the file owner to meet its requirements;
[0065] σ i The data label generated for the i-th block of data;
[0066] σ ρ，i is the new label obtained by re-encoding the data center ρ for the i-th block of dat...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a method for verifying the integrity of cloud data stored in multiple geographic positions. The method mainly solves the problems that the verifying efficiency is low and the verifying frequency is limited in the prior art. The method includes the following achieving steps that firstly, a user encrypts an original file, and a redundant code is added to the original file; secondly, the user selects a storage server and uploads the file; thirdly, the user sets a landmark server at the position closest to the storage server, the landmark server challenges the storage server, and the storage server responds to the challenge; fourthly, the landmark server verifies the response of the storage server and judges the integrity of the cloud data; fifthly, the landmark server measures the geographic position of the cloud storage data according to the challenge responding time; sixthly, the measuring position of the storage server is judged by the user. According to the method for verifying the integrity of the cloud data stored in the multiple geographic positions, the integrity of the cloud data stored in the multiple geographic positions can be verified, the calculation amount and the transmission data volume in the verifying process are reduced, and the method can be used for detecting the safety and reliability of the cloud storage data.
Description
technical field [0001] The invention belongs to the technical field of information security, and particularly relates to a method for verifying the integrity of cloud data stored in multiple geographic locations, which can be used in cloud storage services to verify whether cloud storage service providers store data in different geographic locations according to protocol requirements and whether the stored data is complete. Background technique [0002] In today's era, people are using and relying more and more on the cloud. Regardless of computing resources or storage resources, using the cloud can make people's work more efficient and convenient. [0003] When a user stores a file in the cloud, he hopes that the file can be completely saved in the cloud, so as to ensure that the user does not need to store a backup of the file on the local computer. And when users need to use files, they can conveniently obtain their previously stored files anytime and anywhere. Therefor...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): H04L29/08H04L29/06H04L9/32
Inventor 周洪丞杨超马建峰董超张明月张坤姚亮张鹏
Owner XIDIAN UNIV