Data outsourcing deduplication method based on bidirectional extensible ownership certificate
A data outsourcing and de-duplication technology, which is applied in digital data protection, electronic digital data processing, instruments, etc., can solve the problems of malicious theft of file ownership rights and the inability of de-duplication schemes to achieve static and dynamic de-duplication at the same time. Storage efficiency, saving storage and network overhead effects
Active Publication Date: 2021-03-30
UNIV OF ELECTRONICS SCI & TECH OF CHINA
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[0005]
In view of the fact that the existing deduplication schemes cannot realize static and dynamic deduplication at the same time, and the deduplication system faces the problem of malicious theft of file ownership, the purpose of the present invention is to propose a data outsourcing deduplication based on two-way extensible proof of ownership Duplication solution to solve the functional and security problems of existing deduplication technology
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[0057] In order to make the purpose, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only It is a part of the embodiments of this application, not all of them. The components of the embodiments of the application generally described and illustrated in the figures herein may be arranged and designed in a variety of different configurations. Accordingly, the following detailed description of the embodiments of the application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely represents selected embodiments of the application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without...
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The invention discloses a data outsourcing deduplication method based on a bidirectional extensible ownership certificate. The data outsourcing deduplication method comprises the following steps of system initialization setting, secret key generation, metadata generation, static file outsourcing and deduplication based on the bidirectional ownership certificate, dynamic file deduplication based onthe extensible ownership certificate and protocol arbitration. According to the invention, cross-client deduplication and dynamic modification are realized, so that the storage and network overhead of the server and the clients are saved simultaneously, the clients can detect the integrity of the files anytime and anywhere after the files are outsourced, the outsourced files can be dynamically modified, and an arbitration protocol is realized, so that the user experience is improved. Compared with the prior art, the method can effectively solve the dispute about file primitiveness, a bidirectional extensible ownership certification protocol and an arbitration protocol are contained in one scheme, an integrated outsourcing deduplication solution is achieved, and the method has the advantages of being multifunctional, multi-scene, public, safe, transparent and the like.
Description
technical field [0001] The invention belongs to the field of spinning control, in particular to a data outsourcing de-duplication method based on two-way extensible certificate of ownership. Background technique [0002] Yarn cloud storage is a typical application of cloud computing, which allows users to remotely outsource data to cloud servers for storage. And users can access files anytime and anywhere after completing the outsourcing operation. Due to the large-scale operation and cluster management of cloud storage, it can provide users with high-quality and low-cost services at low prices. With the explosive growth of data in recent years, many cloud storage service providers have adopted deduplication technology to reduce storage overhead. However, for security reasons, most cloud service providers use cross-server deduplication, that is, only after the user completes the data outsourcing operation, then compare and deduplicate the local data on the server. In this...
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IPC IPC(8): G06F21/60G06F21/62G06F21/64G06F13/40
CPCG06F21/602G06F21/6218G06F21/64G06F13/4031Y02D10/00
Inventor 黄可张小松
Owner UNIV OF ELECTRONICS SCI & TECH OF CHINA