[Bug 1715010] Re: Fix XTS encryption with FIPS enabled kernels

[Brian Murray]

** Tags removed: verification-needed-xenial
** Tags added: verification-done-xenial

** Description changed:

  SRU Justification:
  
  Impact:  The kernel crypto API rejects weak XTS keys in FIPS mode and
  the current version of cryptsetup in xenial do some tests with a zeroed
  key to check cipher availability in the kernel. These two behaviors
  combined make impossible to use disk encryption with XTS while using a
  kernel in FIPS mode.
  
  Fix: apply the following fix to cryptsetup:
  
  https://gitlab.com/cryptsetup/cryptsetup/commit/3c2135b36bbc52d052e4ced7c94dc4981eb07a53
  
  Testcase: Try to setup disk encryption with XTS while the kernel is in
  FIPS mode.
+ 
+ N.B.: This is not yet fixed in artful so cannot be released.

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https://bugs.launchpad.net/bugs/1715010

Title:
  Fix XTS encryption with FIPS enabled kernels

Status in cryptsetup package in Ubuntu:
  Fix Committed
Status in cryptsetup source package in Xenial:
  Fix Committed

Bug description:
  SRU Justification:

  Impact:  The kernel crypto API rejects weak XTS keys in FIPS mode and
  the current version of cryptsetup in xenial do some tests with a
  zeroed key to check cipher availability in the kernel. These two
  behaviors combined make impossible to use disk encryption with XTS
  while using a kernel in FIPS mode.

  Fix: apply the following fix to cryptsetup:

  https://gitlab.com/cryptsetup/cryptsetup/commit/3c2135b36bbc52d052e4ced7c94dc4981eb07a53

  Testcase: Try to setup disk encryption with XTS while the kernel is in
  FIPS mode.

  N.B.: This is not yet fixed in artful so cannot be released.

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