Cloud storage encryption and ciphertext retrieval methods and systems
An encryption method and cloud storage technology, applied in the field of cloud storage, can solve problems such as difficulty in ensuring user data security, and achieve the effect of reducing storage costs
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[0018] In order to make the objectives, technical solutions and advantages of the present invention clearer, the following further describes the present invention in detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.
[0019] The cloud storage encryption and retrieval system in the present invention is mainly composed of figure 1 The components shown are detailed as follows:
[0020] (1) Cloud storage security client: realize the docking with the security server and cloud storage server. It has decryption functions, including decryption of ciphertext files and decryption of encrypted data keys, which can store user private keys through physical devices such as USBkey.
[0021] (2) Security server: It can provide a variety of security service functions, including a) user public and private key generation and pu...
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