- Patent Title: Secure communication session resumption in a service function chain
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Application No.: US16780047Application Date: 2020-02-03
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Publication No.: US11539747B2Publication Date: 2022-12-27
- Inventor: K Tirumaleswar Reddy , Prashanth Patil , Carlos M. Pignataro
- Applicant: Cisco Technology, Inc.
- Applicant Address: US CA San Jose
- Assignee: Cisco Technology, Inc.
- Current Assignee: Cisco Technology, Inc.
- Current Assignee Address: US CA San Jose
- Agency: Polsinelli
- Main IPC: H04L9/40
- IPC: H04L9/40 ; H04L9/08

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.
Public/Granted literature
- US20200177631A1 SECURE COMMUNICATION SESSION RESUMPTION IN A SERVICE FUNCTION CHAIN Public/Granted day:2020-06-04
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