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MF66740 - LIC-COMM-SSL System TLS ChaCha20Poly1305 TLSv1.2 Support

PTF Cover Letter


PTF ( Program Temporary Fixes ) Cover letter


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Abstract

LIC-COMM-SSL System TLS ChaCha20Poly1305 TLSv1.2 Support


Pre/Co-Requisite PTF / Fix List

REQ  LICENSED           PTF/FIX  LEVEL

TYPE PROGRAM  RELEASE   NUMBER   MIN/MAX  OPTION
---- -------- --------- -------  -------  ------
CO   5770999  V7R4M0    MF66739   00/00    0000



NOTICE:
-------
Application of this PTF may disable or render ineffective programs that
use system memory addresses not generated by the IBM translator,
including programs that circumvent control technology designed to limit
interactive capacity to purchased levels.  This PTF may be a prerequisite
for future PTFs.  By applying this PTF you authorize and agree to the
foregoing.

This PTF is subject to the terms of the 'IBM License Agreement for Machine
Code', the terms of which were provided in a printed document that was
delivered with the machine.

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INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OR CONDITIONS OF
MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, AND NON INFRINGEMENT,
REGARDING THE PTF.





APAR Error Description / Circumvention

-----------------------------------------------
System TLS ChaCha20Poly1305 cipher suite support is needed for
the Transport Layer Security version 1.2 protocol.

CORRECTION FOR APAR MA47988 :
-----------------------------
System TLS now supports *ECDHE_ECDSA_CHACHA20_POLY1305_SHA256
and *ECDHE_RSA_CHACHA20_POLY1305_SHA256 cipher suites.  Both
ciphers are enabled on the system if system value QSSLCSLCTL is
set to *OPSYS or when those cipher suites are explicitly added
to system value QSSLCTL.   Both new cipher suites are also added
to the default eligible cipher suite list which is configured
with TLSCONFIG value eligibleDefaultCipherSuites.

CIRCUMVENTION FOR APAR MA47988 :
--------------------------------
None.


Activation Instructions


None.




Special Instructions


None.


Default Instructions

THIS PTF CAN BE APPLIED IMMEDIATE OR DELAYED.



Supersedes

PTF/FIX NO(S).  APAR TITLE LINE
--------------  ------------------------------------------------------------
     NONE

Summary Information

System..............................i
Models..............................
Release.............................V7R4M0
Licensed Program...............5770999
APAR Fixed..........................View details for APAR MA47988
Superseded by:......................
Recompile...........................N
Library.............................QSYS
MRI Feature ........................NONE
Cum Level...........................C0121740


IBM i Support

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Document Information

Modified date:
16 May 2020