Abstract: A method and apparatus for obtaining a privacy set intersection are provided. The method may include: encrypting a privacy set of an intersection initiator by using a homomorphic encryption algorithm to generate a cipher text, a cipher text function, a public key, and a private key of the intersection initiator; delivering the cipher text, the cipher text function, and the public key of the intersection initiator to an intersection server; receiving a to-be-decrypted function value of a privacy set of the intersection server from the intersection server; and decrypting the to-be-decrypted function value of the privacy set of the intersection initiator by using the private key, to obtain an intersection element of the privacy set of the intersection initiator and the privacy set of the intersection server.

Abstract: The present disclosure provides a method of federated computing. The method of federated computing includes: acquiring a plurality of metadata from a plurality of computing nodes and publishing the plurality of metadata; determining, from the plurality of computing nodes, at least two computing nodes that agree to execute a federated computing task, wherein the at least two computing nodes are computing nodes that agree to execute the federated computing task based on the plurality of metadata; receiving the federated computing task submitted by at least one of the at least two computing nodes, and splitting the federated computing task into a plurality of subtasks; and distributing the plurality of subtasks to the at least two computing nodes so as to execute the plurality of subtasks between the at least two computing nodes. The present disclosure also provides a device, an apparatus of federated computing, and a non-transitory storage medium.

Abstract: A method and apparatus for obtaining a privacy set intersection are provided. The method may include: encrypting a privacy set of an intersection initiator by using a homomorphic encryption algorithm to generate a cipher text, a cipher text function, a public key, and a private key of the intersection initiator; delivering the cipher text, the cipher text function, and the public key of the intersection initiator to an intersection server; receiving a to-be-decrypted function value of a privacy set of the intersection server from the intersection server; and decrypting the to-be-decrypted function value of the privacy set of the intersection initiator by using the private key, to obtain an intersection element of the privacy set of the intersection initiator and the privacy set of the intersection server.