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Status Not under consideration
Workspace WebSphere traditional
Created by Guest
Created on Jan 12, 2023

RELATED IDEAS

Currently IBM HTTP Server is not support FFDHE ciphers.

IBM Http server is currently not supporting FFDHE cipher groups. 

 

Traditional finite-field-based Diffie-Hellman (DH) key exchange   during the Transport Layer Security (TLS) handshake suffers from a   number of security, interoperability, and efficiency shortcomings.   These shortcomings arise from lack of clarity about which DH group   parameters TLS servers should offer and clients should accept.

 

 Probably that might be a reason for not supporting this group of ciphers by IBM Http Server.

https://datatracker.ietf.org/doc/html/rfc7919 

Websphere Application Server is supporting this  group of ciphers as well. So Please let us know can this be a possibility that IHS will support this feature in near future 

Idea priority Medium
  • Admin
    Graham Charters
    Reply
    |     Feb 10, 2023

    Thank you for the suggestion. ECDHE is the default and mandatory to implement TLS 1.3 key exchange. FFDHE is the only other valid TLS 1.3 key exchange, however, as you stated, IHS doesn’t support it. We do not anticipate this support being added in the foreseeable future, and given the unlikelihood that we would deliver this, we are declining the request rather than leaving it in an uncommitted state for an extended period of time. If you would like to discuss this decision further, please contact Graham Charters <charters@uk.ibm.com>.

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