[Bug 1455990] Re: quassel-core generates an insecure certificate upon installation

[Michael Marley]

OK, here is a patch for 2048-bit certificates.  I also discovered that
OpenSSL generates the SHA256 hash automatically now, so there is no need
to specify that explicitly.

** Patch added: "certificate.debdiff"
   https://bugs.launchpad.net/ubuntu/+source/quassel/+bug/1455990/+attachment/4399863/+files/certificate.debdiff

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Title:
  quassel-core generates an insecure certificate upon installation

Status in quassel package in Ubuntu:
  New

Bug description:
  After installation, quassel-core generates a 1024-bit certificate
  using the SHA1 hash.  Both of these are considered deprecated and
  somewhat insecure.  The attached patch updates the postinst script to
  generate a 4096-bit certificate using the SHA256 hash instead.

  The SHA256 certificate will not cause any compatibility problems
  because OpenSSL 1.0.0 and later support SHA256 certificates.  All
  supported versions of Ubuntu and Debian have at least 1.0.1 and the
  supported Windows and Mac builds of Quassel are additionally compiled
  with a recent enough version to support the SHA256 certificate.

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