A multi-level and multi-level encryption cloud storage system
A multi-level, cloud storage technology, applied in the information field, can solve the problem of low security of cloud storage system, and achieve the effect of solving low security
Active Publication Date: 2022-07-01
HEFEI UNIV
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[0005] The purpose of the present invention is to propose a cloud storage system with multi-level and multi-level encryption, which uses high security encryption technology and new key storage technology to solve the problem of low security of the current cloud storage system
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[0031] like Figure 15 As shown, a multi-level and multi-level encryption cloud storage system proposed by the present invention adopts two different technical architectures to meet different security requirements, wherein the B / S architecture is suitable for common security requirements, and the C / S architecture is suitable for The S-frame is suitable for higher security requirements.
[0032] The present invention adopts different protection levels for two different technical frameworks:
[0033] Under the B / S architecture, double-level encryption protection is adopted. The first layer of protection is protected during the transmission process between the client and the server, and the HTTPS protocol is used for encryption processing; the second layer is encrypted for file storage on the server side.
[0034] Under the C / S architecture, three-level encryption protection is adopted. The first layer encrypts the plaintext file on the client to form a ciphertext file; the seco...
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A multi-level and multi-level encryption cloud storage system, involving the field of information technology, adopts two different technical architectures to meet different security requirements, wherein the B / S architecture is suitable for ordinary security requirements, and the C / S architecture is suitable for for higher security requirements. Users can freely choose among three levels of encryption protection modes according to actual security requirements. The first level of encryption does not involve encryption algorithms, the second level of encryption involves the national secret SM3 hash cipher algorithm, the national secret SM4 block cipher algorithm, and the third level encryption. Involves SM3, SM4 and MD5 algorithms. At the same time, the present invention also proposes a dynamic key generation and key storage technology, as well as a related key protection algorithm and storage method, wherein the key protection algorithm is a dynamic algorithm. Based on this, the present invention can effectively improve the security of the cloud storage system.
Description
technical field [0001] The invention relates to the field of information technology, in particular to a multi-level and multi-level encryption cloud storage system. Background technique [0002] We are currently in and will be in the era of big data for a long time, and a huge amount of data information is generated every day. The storage method has been transformed from the original paper document storage to the electronic document storage. However, with the increase of the amount of files, the local storage space can no longer meet the current actual demand. With the development of cloud computing, the way of electronic file storage has also increased from local storage to cloud storage. [0003] At present, there are many cloud storage systems, which are mainly used for the storage of ordinary files. The reason is that these systems do not encrypt the contents of the files, or the encryption protection level is low. And public servers are not safe. If encrypted files ...
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IPC IPC(8): G06F21/60G06F21/62G06F21/64
CPCG06F21/602G06F21/6218G06F21/64
Inventor 汪彩梅周子健李正茂黄波文王春龙
Owner HEFEI UNIV