TIANJIN SURSEN INVESTMENT CO., LTD. Patent applications |
Patent application number | Title | Published |
20140181116 | Method and device of cloud storage - Embodiments of the present invention disclose a cloud storage method and device, to provide efficient storage of huge amounts of data. The cloud storage method includes: calculating the hash value of a file, converting the hash value of the file into the string, and using the string as the filename; calculating the storage path of the file by using the hash value of the file according to a predefined rule; looking up a physical storage location of the storage path of the file in an index table and storing the file in the physical storage location, wherein the index table stores corresponding relationship tables between all possible storage paths and physical locations in the storage disk in advance. | 06-26-2014 |
20130246811 | STORAGE METHOD, SYSTEM AND APPARATUS - The present invention discloses a storage method, system and apparatus. The method comprises: encrypting data with a storage key to obtain encrypted data; encrypting the storage key with two different encryption methods to generate a personal key and a data key, respectively, wherein the personal key can be decrypted with a key from the user who owns the data to obtain the storage key, and the data key can be decrypted with the unencrypted data to obtain the storage key; saving the encrypted data, personal key and data key in a server. The technical scheme of the present invention can prevent saving duplicate files while ensuring that the unencrypted data cannot be accessed by any other users and storage service providers. | 09-19-2013 |
20130246790 | STORAGE METHOD, SYSTEM AND APPARATUS - The present invention discloses a storage method, system and apparatus. The method comprises: encrypting data with a storage key to obtain encrypted data; encrypting the storage key with two different encryption methods to generate a personal key and a data key, respectively, wherein the personal key can be decrypted with a key from the user who owns the data to obtain the storage key, and the data key can be decrypted with the unencrypted data to obtain the storage key; saving the encrypted data, personal key and data key in a server. The technical scheme of the present invention can prevent saving duplicate files while ensuring that the unencrypted data cannot be accessed by any other users and storage service providers. | 09-19-2013 |