Logistics privacy protection method and system based on multi-authorization center-based encryption

The invention discloses a logistics privacy protection method and system based on multi-authorization center attribute-based encryption, and the method comprises the steps: receiving an order request of a sender, positioning the order request, sending the order request to a collection site, and encrypting the order information through MA-CP-ABE; after the parcel is received, route planning is carried out, MA-CP-ABE is used for encrypting the planned route, and meanwhile, a parcel two-dimensional code is generated according to an access strategy; in the logistics transfer process of the parcel, the parcel two-dimensional code is scanned, and the scanning equipment conforming to the access strategy can obtain the next logistics transfer address; and after the parcel arrives at the distribution station, the parcel two-dimensional code is scanned, the scanning equipment conforming to the access strategy can obtain the receiving information of the parcel, and the parcel and the identity information of the recipien