IBM Z Hardware and Operating Systems Ideas Portal


This is the public portal for all IBM Z Hardware and Operating System related offerings. To view all of your ideas submitted to IBM, create and manage groups of Ideas, or create an idea explicitly set to be either visible by all (public) or visible only to you and IBM (private), use the IBM Unified Ideas Portal (https://ideas.ibm.com).


Shape the future of IBM!

We invite you to shape the future of IBM, including product roadmaps, by submitting ideas that matter to you the most. Here's how it works:

Search existing ideas

Start by searching and reviewing ideas and requests to enhance a product or service. Take a look at ideas others have posted, and add a comment, vote, or subscribe to updates on them if they matter to you. If you can't find what you are looking for,

Post your ideas

  1. Post an idea.

  2. Get feedback from the IBM team and other customers to refine your idea.

  3. Follow the idea through the IBM Ideas process.


Specific links you will want to bookmark for future use

Welcome to the IBM Ideas Portal (https://www.ibm.com/ideas) - Use this site to find out additional information and details about the IBM Ideas process and statuses.

IBM Unified Ideas Portal (https://ideas.ibm.com) - Use this site to view all of your ideas, create new ideas for any IBM product, or search for ideas across all of IBM.

ideasibm@us.ibm.com - Use this email to suggest enhancements to the Ideas process or request help from IBM for submitting your Ideas.

Add a new idea Subscribe
Status Future consideration
Workspace z/OS
Categories ICSF
Created by Guest
Created on Jul 3, 2023

RELATED IDEAS

ICSF Hardware Support for (EC)DHE Key Exchange & TLS1.3 Handshakes

Even for TLS1.2 and for TLS1.3, (EC)DHE key exchange becomes more and more required. (EC)DHE based Ciphers are currently only minimal supported by Hardware (CPACF/Crypto CoProcessor). Also, TLS1.3 has a much larger footprint in terms of CPU consumption compared to TLS1.2 for the handshake. (EC)DHE ciphers become mandatory for example for OpenShift and other services running in the open world.


We used TLS1.3 in our CICS regions, where CICS acted as client to REST Services in OpenShift. The overhead for SSL on an S8 TCB in CICS was about 50ms CPU per TLS handhake. After we switched it back to TLS1.2 it requires only between 1ms and 10ms of CPU.


ICSF and Hardware Support should be enhanced to support more algorithm that are used by (EC)DHE Ciphers. Also, TLS1.3 Handshakes should be supported more in Hardware. Otherwise, this would require much larger machines and costs.



Idea priority Urgent
  • Guest
    Reply
    |     Jul 11, 2023
    We will add this item to the ICSF backlog. Thanks.

By clicking the "Post Comment" or "Submit Idea" button, you are agreeing to the IBM Ideas Portal Terms of Use.
Do not place IBM confidential, company confidential, or personal information into any field.