An efficient sharing system of attribute ciphertext supporting ciphertext deduplication
A sharing system and ciphertext technology, applied in the field of cloud computing and secure data sharing, can solve the problems of data sharing system and user attribute authenticity and security cannot be protected, waste of storage resources, repeated storage, etc., to achieve efficient sharing , saving storage space and eliminating data redundancy
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[0024] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.
[0025] In one embodiment of the present invention, as figure 1 As shown, the attribute ciphertext efficient sharing system that supports ciphertext deduplication includes a client, a key distribution server, an authorization center, and a cloud storage server, wherein:
[0026] The client is connected to the key distribution server, the authorization center and the cloud storage server, and is used to send a registration request to the key distribution server a...
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