[Bug 1972939] Re: Jammy tinc incompatibile with older (e.g. Xenial) tinc nodes

[Nathan Stratton Treadway]

*** This bug is a duplicate of bug 1990216 ***
    https://bugs.launchpad.net/bugs/1990216

Just to have links in both directions between various bug trackers:
"connecting tinc 1.0.36/libssl3 to older nodes #414"
  https://github.com/gsliepen/tinc/issues/414

** Bug watch added: github.com/gsliepen/tinc/issues #414
   https://github.com/gsliepen/tinc/issues/414

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https://bugs.launchpad.net/bugs/1972939

Title:
  Jammy tinc  incompatibile with older (e.g. Xenial) tinc nodes

Status in Release Notes for Ubuntu:
  New
Status in openssl package in Ubuntu:
  Fix Released
Status in tinc package in Ubuntu:
  Invalid
Status in openssl source package in Jammy:
  Confirmed
Status in tinc source package in Jammy:
  Invalid

Bug description:
  The tinc included in Jammy (1.0.36-2build1 linked with libssl3) cannot
  connect to tinc nodes running e.g. tinc from Xenial (1.0.26-1).

  (Tinc from Impish, which is also v1.0.36-2 but is linked to libssl1.1,
  can connect to these nodes without problems.)

  The symptom is a log message (on the system running Jammy) during the
  metadata channel negotiation (with debug level set to 5):

  Error during initialisation of cipher from tinc_xenial [...]
  error:0308010C:digital envelope routines::unsupported

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