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[Bug 1608954] Re: Performance degradation caused by libica2 library

To: group.of.nepali.translators@xxxxxxxxxxxxxxxxxxx
From: Dimitri John Ledkov <launchpad@xxxxxxxxxxxx>
Date: Tue, 23 Aug 2016 13:10:55 -0000
Reply-to: Bug 1608954 <1608954@xxxxxxxxxxxxxxxxxx>
Sender: bounces@xxxxxxxxxxxxx

** Also affects: libica (Ubuntu Xenial)
   Importance: Undecided
       Status: New

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https://bugs.launchpad.net/bugs/1608954

Title:
  Performance degradation caused by libica2 library

Status in Ubuntu on IBM z Systems:
  In Progress
Status in libica package in Ubuntu:
  Fix Released
Status in libica source package in Xenial:
  New

Bug description:
  == Comment: #0 - Bastian Pfeifer <Bastian.Pfeifer@xxxxxxxxxx> - 2016-07-29 09:07:47 ==
  ---Problem Description---
  'Libica' library versions >= 2.6.0 implement a new DRBG (Deterministic Random Number Generator) with a unnecessary stiff reseed limit leading to performance degradation (factor >20) for RSA encryption via opencryptoki.  
   
  A patch is already upstream and can be found under this commit:
  https://sourceforge.net/p/opencryptoki/libica/ci/3bcd3efb0aff364515ab9b3c39dd68fbbb1534d0/

  It will fix the issue + we will get a great performance improvement
  for the RSA encryption via opencryptoki's ICA-TOKEN.

  Contact Information = Bastian.Pfeifer@xxxxxxxxxx 
   
  ---uname output---
  Linux s42lp26 4.4.0-28-generic #47-Ubuntu SMP Fri Jun 24 10:14:29 UTC 2016 s390x s390x s390x GNU/Linux
   
  Machine Type = 2964, 701 
   
  ---Debugger---
  A debugger is not configured
   
  ---Steps to Reproduce---
   na
   
  Userspace tool common name: libica version 2.6.1 
   
  The userspace tool has the following bit modes: 64-bit 

  Userspace rpm: libica2:s390x

  Userspace tool obtained from project website:  na 
   
  *Additional Instructions for Bastian.Pfeifer@xxxxxxxxxx:
  -Attach ltrace and strace of userspace application.

  == Comment: #2 - Ingo Tuchscherer <ingo.tuchscherer@xxxxxxxxxx> -
  2016-08-01 06:53:45 ==

  
  == Comment: #3 - Heinz-Werner Seeck <heinz-werner_seeck@xxxxxxxxxx> - 2016-08-02 08:19:23 ==
  'Libica' library versions >= 2.6.0 implement a new DRBG (Deterministic Random Number Generator) with a unnecessary stiff reseed limit leading to performance degradation (factor >20) for RSA encryption via opencryptoki.  
   
  A patch is already upstream and can be found under this commit:
  https://sourceforge.net/p/opencryptoki/libica/ci/3bcd3efb0aff364515ab9b3c39dd68fbbb1534d0/

  Also attached to this bugzilla !

  It will fix the issue + we will get a great performance improvement
  for the RSA encryption via opencryptoki's ICA-TOKEN.

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