Method of securing transmission data
US8533493B1 · kind B1 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 16, 2012 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 16, 2032 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0485
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method is provided for securing transmission data between an upload device and a download device. The upload device is configured to generate a first matrix, a second matrix and a re-encryption vector, to encrypt a plaintext data file using the first matrix to obtain a ciphertext data file, to transmit the ciphertext data file and the re-encryption vector to a server, and to transmit the second matrix to the download device. The server is configured to re-encrypt the ciphertext data file using the re-encryption vector to obtain a re-encrypted data file that can be decrypted using the second matrix to obtain a decrypted data file, and to allow the download device to download the re-encrypted data file therefrom.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.