Homomorphic encryption-enabled parallel file system

A non-transitory computer readable storage medium storing instructions that when executed by one or more computer processors, cause the one or more computer processors to perform steps comprising:

• receiving, from a client device, by a parallel file system, a write request to store data in the parallel file system, wherein the parallel file system stores data across multiple storage nodes;
• responsive to receiving the write request, determining a distribution map for storing the data, the distribution map identifying a plurality of storage nodes and comprising a mapping from portions of data to storage nodes of the plurality of storage nodes;
• sending the distribution map to the client device;
• receiving a plurality of chunks of encrypted data, wherein the plurality of chunks of encrypted data are encrypted using homomorphic encryption, wherein encrypting the plurality of chunks comprises homomorphic encryption of a stripe of data, the stripe comprising one or more chunks of parity data;
• storing, by the parallel file system, each of the plurality of chunks in a storage node according to the distribution map;
• receiving, by the parallel file system, a request to perform a computation;
• performing, by the parallel file system, the computation in parallel on the plurality of storage nodes, wherein the computation is performed on the encrypted data without decrypting the encrypted data;
• and
• sending a result of computation.

A computer system comprising:

• one or more computer processors;
• and
• a non-transitory computer readable storage medium storing instructions that when executed by the one or more computer processors, cause the one or more computer processors to perform steps comprising:
• receiving, from a client device, by a parallel file system, a write request to store data in the parallel file system, wherein the parallel file system stores data across multiple storage nodes;
• responsive to receiving the write request, determining a distribution map for storing the data, the distribution map identifying a plurality of storage nodes and comprising a mapping from portions of data to storage nodes of the plurality of storage nodes;
• sending the distribution map to the client device;
• receiving a plurality of chunks of encrypted data, wherein the plurality of chunks of encrypted data are encrypted using homomorphic encryption, wherein encrypting the plurality of chunks comprises homomorphic encryption of a stripe of data, the stripe comprising one or more chunks of parity data;
• storing, by the parallel file system, each of the plurality of chunks in a storage node according to the distribution map;
• receiving, by the parallel file system, a request to perform a computation;
• performing, by the parallel file system, the computation in parallel on the plurality of storage nodes, wherein the computation is performed on the encrypted data without decrypting the encrypted data;
• and
• sending a result of computation.