Method, device and system for encrypting cloud storage data

A data encryption and cloud storage technology, which is applied in the field of cloud storage security, can solve problems such as consumption of system resources and time, and performance degradation of cloud storage data access, so as to achieve the effect of reducing the number of encryptions and improving performance

Active Publication Date: 2011-04-06
BIGKNOW (BEIJING) DATA TECH CO LTD
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Problems solved by technology

[0010] The purpose of the present invention is to provide a cloud storage data encryption method, device and system, aiming to solve the problem of consuming a lot of system when the existing cloud storage data encryption method encrypts the data to be stored or encrypts it multiple times and stores it in the designated cloud storage data center. Resources and time, which reduce the performance of cloud storage data access

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  • Method, device and system for encrypting cloud storage data
  • Method, device and system for encrypting cloud storage data
  • Method, device and system for encrypting cloud storage data

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Embodiment Construction

[0039] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0040]The present invention calculates the size H of the random seed that should be generated according to the amount of data X expected to be stored in the cloud storage data center within a preset time period, the proportion of local storage space occupied by R, and the data security level Z, and according to the amount of plaintext data to be encrypted each time Y calculates the number u of random data collection to the random seed, generates the random seed of the H size, and collects multiple times according to the u number of times, generates a random string of plaintext identification bits an...

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Abstract

The invention belongs to the technical field of cloud storage safety, in particular to a method, a device and a system for encrypting cloud storage data. The method comprises the following steps of: calculating the size H of a generated random seed according to expected storage data quality X in a preset time, a local storage space occupation proportion R and data safety level Z; calculating random seed collection frequency u according to cleartext data quality Y each time; generating a cleartext encryption mark data string according to the size random seed multiple-collection data for the generated H by the frequency u; and selecting more than half of cleartext data for encrypting by using the data string to generate a cryptogram. The invention also provides the device and the system forencrypting the cloud storage data. Under the premise without sacrificing data safety, the invention reduces the encryption quantity of data to be stored and greatly increases the storage speed of thecloud storage data.

Description

technical field [0001] The invention belongs to the technical field of cloud storage security, and in particular relates to a cloud storage data encryption method, device and system. Background technique [0002] Data has been proven to be one of the important assets of enterprises, and the rapid growth of data has made enterprises face unprecedented challenges. At the same time, the rapidly changing world economic situation and the cost pressure brought about by fierce competition make enterprises have to consider how to reduce IT costs to meet the growing storage requirements of enterprises. [0003] The existing storage architecture can be divided into two types: one is a proprietary architecture, such as DAS (direct attached storage), SAN (Storage Area Network, SAN) and network access server (Network access server, NAS) Wait. This type of storage system is exclusively used by one party, which can provide users with good control, better reliability and performance, but ...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04L29/06H04L29/08
CPCH04L29/08549H04L67/1097H04L9/0869G06F21/602
Inventor 刘慧
Owner BIGKNOW (BEIJING) DATA TECH CO LTD
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