Real-time dynamic data safe storage management system based on cloud platform
A data security storage, real-time dynamic technology, applied in the direction of electronic digital data processing, transmission system, digital data protection, etc., can solve the problems of consuming mobile device storage capacity, inapplicability, and high computing costs for users
Inactive Publication Date: 2018-04-24
JIANGSU UNIV +1
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Problems solved by technology
On the other hand, in the existing encryption schemes, users still need to perform a large number of encryption and decryption operations. The cloud server only undertakes a query function, and the calculation overhead for users is very large. Simple data encryption schemes are not suitable for actual cloud environments. , it will consume more mobile device storage, computing overhead and power consumption during the decryption process
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Embodiment 1
[0066] Such as figure 1 As shown, the real-time dynamic data security storage management system based on the cloud platform in this embodiment includes a mobile sensing terminal, an authorized user terminal and a cloud server. The mobile sensing terminal generates real-time dynamic data, encrypts the data and keywords and updates the dynamic data in time, including a key generation module, a file encryption module, a keyword encryption module, a binary search tree and a query list building module. Authorize the user terminal to send a keyword-based query request to the cloud server, including the trapdoor value of the keyword, obtain the encrypted file and perform a decryption operation to obtain the plaintext file. The cloud storage server system performs query operations and partial decryption operations, and returns the query ciphertext and generated intermediate results to authorized users.
[0067] In this embodiment, the file and keyword encryption method flow of the mo...
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The invention discloses a real-time dynamic data safe storage management system based on a cloud platform. The system comprises a mobile sensing terminal, an authorization user terminal and a cloud server. The mobile sensing terminal generates real-time dynamic data, conducts an encryption operation on data and key words and updates the dynamic data in time, the authorization user terminal sends aquery request based on the key words to the cloud server for data query, and a cloud storage server system conducts a query operation and a partial decryption operation and returns queried ciphertextand a generated intermediate result to an authorization user. According to the real-time dynamic data safe storage management system based on the cloud platform, multiple kinds of operations on the numeric key words can be supported, real-time updating is conducted on a query tree of the dynamic data, the cloud server is allowed to participate in the partial decryption operation at the same time,and the computation cost of the user is effectively lowered.
Description
technical field [0001] The invention belongs to the technical field of data storage management, and in particular relates to a real-time dynamic data security storage management system based on a cloud platform. Background technique [0002] As an important part of cloud computing, cloud storage allows users to access remotely stored data anytime and anywhere, and allows authorized users to share data. By storing data centrally in the cloud, users can not only obtain high-quality data storage services but also reduce data management and maintenance costs. At the same time, in order to ensure the privacy and security of data stored in the cloud, the common method is to upload the private data to the cloud server in encrypted form, and allow authorized users to query data through keywords, but the resources of mobile terminal devices are limited. Including bandwidth, memory, CPU processing power, etc. After the data is encrypted and stored, the operation of the mobile device ...
Claims
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IPC IPC(8): G06F21/62H04L29/06
CPCG06F21/6227G06F2221/2107H04L63/0442
Inventor 平淑容王良民王润宇邬海琴辛燕刘湘雯潘森杉
Owner JIANGSU UNIV