Secure communication session resumption in a service function chain
US10554689B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 28, 2017 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Sep 14, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04L2463/062
- WIPO fieldDigital communication
- WIPO sectorElectrical engineering
Abstract
A method for resuming a Transport Layer Security (TLS) session in a Service Function Chain comprising a plurality of Service Function nodes coupled to a Service Function Forwarder. A request is received at a first Service Function node to establish a TLS session, and a Pre-Shared Key (PSK) and a PSK identifier that uniquely correspond to the first Service Function node and the TLS session are generated. The PSK identifier is forwarded to one or more of the Service Function Forwarder and the plurality of Service Function nodes. A request to resume the TLS session is received from a client device that previously disconnected. It is determined that the connection request contains the PSK identifier, a second Service Function node is selected, and the TLS session is re-established between the client device and the second Service Function node using the same PSK as the prior TLS session.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.