Secured file sharing system
US10380360B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 24, 2017 |
| Grant date | Aug 13, 2019 |
| Priority date | — |
| Expiry date | Aug 31, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W4/14
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
One embodiment provides a file sharing system. During operation, the system identifies a data file to be sent to a second device of a second user and generates a plurality of coded fragments from the data file based on a generator matrix of erasure encoding. An individual coded fragment does not include plaintext data. The system generates a plurality of sub-files, each of which comprises one or more coded fragments, of the data file. The system attaches a first sub-file to an electronic communication destined to the second device, uploads a second sub-file to a cloud provider, and embeds a link, which may expire and is protected based on a verification code, associated with the uploaded second sub-file into the electronic communication. The system sends the electronic communication to the second device and the verification code in a text message to a cell phone of the second user.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.