Method and encryption node for encrypting message
US10511434B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 2, 2015 |
| Grant date | Dec 17, 2019 |
| Priority date | — |
| Expiry date | Aug 20, 2035 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/0471
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method and encryption node (300) for providing encryption of a message m according to a selected encryption scheme. A set of k noise factors are pre-compiled (3:1) from random numbers and predefined integer parameters of the selected encryption scheme by the encryption node (300) in advance. The k noise factors are saved (300a) to be used for encrypting the message m when later requested (3:2) by a client (302). A subset of/noise factors are then selected (3:3) out of the pre-computed set of k noise factors and used as input to the encryption scheme when encrypting (3:5) the message m by computing a cipher text c which is delivered (3:6) as an encrypted message, e.g. to the client (302). Thereby, less time needs to be spent for computing the necessary noise factors after receiving the encryption request and higher throughput can thus be achieved for messages to be encrypted. In particular, the solution may be used to increase the throughput for a stream of messages.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.