Data storage and access control method based on key derivation
A data storage and access control technology, applied in the field of cloud data storage, can solve the problems of lack, consumption of cloud server resources, difficulty in compatibility between CP-ABE schemes, etc., and achieve the effect of avoiding illegal downloads and ensuring security
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[0018] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, 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.
[0019] Embodiments of the present invention will be further described in detail below in conjunction with the accompanying drawings, as figure 1 Shown is a schematic flow chart of a data storage and access control method based on key derivation provided by an embodiment of the present invention, and the method includes:
[0020] Step 1. The data owner generates the attribute set {A required for attribute encryption according to the access permissio...
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