Computer-Implemented System And Method For Providing Secure Data Processing In A Cloud Using Discrete Homomorphic Encryption

摘要

A computer-implemented system and method for providing secure data processing in a cloud using discrete homomorphic encryption is provided. Plaintext data items are homomorphically encrypted into queries, which are transmitted to a discrete homomorphic encryption server. From the server are received identifiers associated with the queries. The identifiers are transmitted to a computing server in a cloud-computing environment, where at least one of the identifiers is processed. The plaintext data items are encrypted into ciphertext data items and transmitted to a storage server in the environment requested to store the items in a storage. References for storage locations of the ciphertext data items are received and associated with identifiers for the queries encrypted from the same plaintext data item as the ciphertext data items at the locations. The ciphertext data item whose location is identified by the reference associated with the identifier in the processing result is retrieved and decrypted.