Method and apparatus for establishing a secure connection over a one-way data path
US6317831A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Nov 13, 2001 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04W12/04
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
Improved techniques for facilitating secure data transfer over one-way data channels or narrowband channels are disclosed. Often, these channels are wireless channels provided by wireless data networks. The techniques enable cryptographic handshake operations for a one-way data channel to be performed over a companion two-way data channel so that the one-way data channel is able to effectively satisfy security protocols that require two-way communications for the cryptographic handshake operations. Once the cryptographic handshake operations are complete, data can be transmitted over the one-way data channel in a secure manner. Additionally, the techniques also enable the cryptographic handshake operations to be performed more rapidly because the two-way channel is typically a wideband channel. In which case, the use of a wideband channel instead of a narrowband channel for the cryptographic handshake operations results in latency reductions, regardless of whether the narrowband channel is a one-way channel or a two-way channel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.