Attribute ciphertext efficient sharing system supporting ciphertext deduplication
A technology of sharing system and ciphertext, applied in the field of cloud computing and secure data sharing, it can solve the problems of repeated storage, waste of storage resources, and the authenticity and security of data sharing system and user attributes cannot be protected.
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Apparently, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0025] In one embodiment of the present invention, as figure 1 As shown, the efficient attribute ciphertext sharing system that supports ciphertext deduplication includes a client, a key distribution server, an authorization center, and a cloud storage server, where:
[0026] The client is connected with the key distribution server, the authorization center and the cloud storage server, and is used to send registration requests to the key distribution server, send data access re...
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