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SSL libraries on Ubuntu64 bit with PxPlus V10 64 bit

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Mike Hatfield:
Thanks guys.

I'll pass this on.
Funnily enough I did suggest upgrading to latest version a couple of weeks ago to avoid compatibility issues  :-[

Mike King:
Just for some background, the issue is that were code changes required between version 1.1.x of OpenSSL and version 1.0.x.  PxPlus currently supports OpenSSL 1.0.x and 0.98.x versions (for TLS1.2 you need OpenSSL 1.0.x)

From our perspective 1.1.0 added little functionality that the older version 1.0.x did not already provide.  TLS 1.3 was ultimately added in the 1.1.1 version of OpenSSL and that was released in September of last year.  TLS1.3 is not currently and, to the best of our knowledge, will not ever be supported in OpenSSL 1.0.x.

TLS 1.3 support will ultimately be important going forward but because of the code changes required between the 1.0.x and 1.1.x many Linux releases did not ship 1.1.x until recently.  For example Redhat 8 first came out with OpenSSL 1.1.x just this May and CENTOS 8 only came out with it last month (September 2019).   Ubuntu 18 was originally released with OpenSSL 1.1.0 however it was later updated to 1.1.1 once it was available.

As for us, we have made the code changes to PxPlus to support OpenSSL 1.1.x and to handle TLS1.3.  We have been testing these changes in house for the past month or so and plan to release them with PxPlus 2020.   Until that time make sure whatever Linux you install should use OpenSSL 1.0.x.

NOTE: For Windows we ship the OpenSSL libraries with PxPlus in order to assure compatibility.

bmohrhardt:
Hello List :

         We are attempting to upgrade some of our Desktops to Ubuntu 18.04 LTS, which is only available in 64-bit. Prior to that, we used 14.04 and 16.04, both 32-bit, with no issues. We have installed the 32-bit architecture, and the 32-bit ssl libraries, but it still gives us grief. Do we have to apt purge the 64-bit SSL? We have been reluctant to try that, thinking that it might prevent other, legitimate,
programs from working. When we do a dpkg -l | grep openssl, we still get the "too new" 64-bit version :

root@33w9fx1:~# dpkg -l | grep openssl
ii  openssl                                    1.1.1-1ubuntu2.1~18.04.6

          Do we have to completely remove it? Or perhaps just create a symlink to the 32-bit one?

          Thanks,
          Bill.

Devon Austen:
PxPlus V10 won't work with OpenSSL 1.1.1 32-bit or 64-bit.

PxPlus 2020 is needed for OpenSSL 1.1.1 support.

The newest version of OpenSSL that works with PxPlus v10 is 1.0.2

bmohrhardt:
Sorry Devon, I should have been more specific.
This is copied directly from the pxpreg -v command :

Professional Serial 134938, 50 users, V15, Registered
   Flags:4010b032
Package 7587, Registered
   Runtime, Flags:01cf0032

We are on PxPlus Version 15!

Bill.

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