Method and system for asynchronous side channel cipher renegotiation
US11700243B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2021 |
| Grant date | Jul 11, 2023 |
| Priority date | — |
| Expiry date | Oct 21, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L63/18
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for asynchronous side channel cipher renegotiation includes: establishing, by a first computing device, a first communication channel and a second communication channel with a second computing device, where the first communication channel is an encrypted tunnel and packages exchanged using the encrypted tunnel are encrypted using a first cipher; receiving, by a receiver of the first computing device, a renegotiation request from the second computing device using the second communication channel, where the renegotiation request includes at least a password value and a relative time; generating, by a processor of the first computing device, a second cipher using at least an encryption protocol and the password value; receiving, by the receiver of the first computing device, a new encrypted packet from the second computing device using the first communication channel; and decrypting, by the processor of the first computing device, the new encrypted packet using the second cipher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.