Data sharing system and method based on proxy re-encryption
A technology of proxy re-encryption and data sharing, applied in the field of data sharing system based on proxy re-encryption, can solve problems such as large communication cost, and achieve the effect of reducing communication cost, high security and efficiency
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[0043] Next, the technical solutions in the embodiments of the present invention will be apparent from the embodiment of the present invention, and it is clearly described, and it is understood that the described embodiments are merely embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, those of ordinary skill in the art will belong to the scope of the present invention without all other embodiments obtained without creative labor.
[0044] First, the definition of some letters and formulas involved in the present invention will be described:
[0045] {SK Alice PK Alice }: Data owner's public private key pair, where PK Alice = SK Alice G; SK Alice For the private key of the data owner, PK Alice For the public key of the data owner.
[0046] {SK Bob PK Bob }: Data requester public private key pair, where PK Bob = SK Bob G; SK Bob For the private key of the data requester, PK Bob For the public key of the data requeste...
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