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Status Delivered
Created by Guest
Created on Dec 3, 2018

TLSv1.3 support for IBM WebSphere Application Server

TLSv1.3 support for IBM WebSphere Application Server
Please enable support of TLS 1.3 for WAS version 855 and 9.
RFC standard has been released.
The Transport Layer Security (TLS) Protocol Version 1.3
https://www.rfc-editor.org/rfc/rfc8446.txt

Fábio

Idea priority High
RFE ID 127913
RFE URL
RFE Product WebSphere Application Server
  • Admin
    Gary Picher
    Mar 15, 2022

    Although WebSphere Application Server has supported the ability to use TLS 1.3 for a while, there was previously no support to specify multiple protocols. If TLS 1.3 was chosen as the protocol, only clients capable of using TLS 1.3 could connect; there was no ability to fall back to other protocols.

    However, multiple protocol support has been added to WebSphere Application Server 8.5.5.21 and 9.0.5.11. For details on how to configure multiple protocols, see Step 14 on the following page:

    https://www.ibm.com/docs/en/was-nd/8.5.5?topic=sc-creating-ssl-configuration

    For example, you can create a "Custom protocol list" that contains both TLS 1.3 and TLS 1.2, allowing TLS 1.3 communication for clients that support it while also providing the ability to fall back to TLS 1.2 for other clients.

  • Guest
    Nov 2, 2021
  • Guest
    Dec 4, 2018

    The TLS level is based on Java. Currently TLS 1.3 is enabled in Java 11 (http://openjdk.java.net/jeps/332). At some point it may be ported to Java 8. I would think at that time IBM would evaluate the use in tWAS. - Brian