The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Sep. 22, 2026
Filed:
Nov. 01, 2023
Telefonaktiebolaget Lm Ericsson (Publ), Stockholm, SE;
Magnus Westerlund, Upplands Väsby, SE;
Claudio Porfiri, Stockholm, SE;
John Preuss Mattsson, Täby, SE;
Telefonaktiebolaget LM Ericsson (publ), Stockholm, SE;
Abstract
A method and a network node for rekeying or re-authenticating security protection for Stream Control Transmission Protocol (SCTP) association using Datagram Transport Layer Security (DTLS) encryption for SCTP chunk transfer. The method comprises establishing a new DTLS connection between a first network node and a second network node using an existing SCTP association employing an existing DTLS connection between the two nodes to transfer DTLS handshake messages. The method further comprises commencing to use the new DTLS connection for protecting the SCTP chunk transfer using the DTLS encryption between the two nodes by transmitting SCTP chunks protected by DTLS encryption using the new DTLS connection; and closing the existing DTLS connection after an elapsed time period after commencing to use the new DTLS connection.