Systems and methods for secure file access
US10496849B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 27, 2018 |
| Grant date | Dec 3, 2019 |
| Priority date | — |
| Expiry date | Nov 27, 2038 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L9/0894
- WIPO fieldComputer technology
- WIPO sectorElectrical engineering
Abstract
A system and method is provided for secure file access by local client devices. An exemplary method includes receiving an identifier of a data block and a first portion of the data block from a client device, encrypting, with a master encryption key, the first portion of the data block, transmitting, by the server, a generated encryption key and the encrypted first portion of the data block to the client device to be stored locally in memory of the client device, wherein the generated encryption key is based on the master encryption key and the identifier and causing the client device to encrypt a second portion of the data block using the generated encryption key, and causing the client device to store the encrypted second portion of the data block in the memory of the client device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.