tree cf5066bc1a2c21dc222bb97a975ba5fecb10f138
parent 8c37b9ca13211c197f3452356b73114c39f549fd
author Nikias Bassen <nikias@gmx.li> 1478221899 +0100
committer Nikias Bassen <nikias@gmx.li> 1478221899 +0100

userpref: [GnuTLS] Fix pairing record generation and improve error handling

In newer GnuTLS versions the parameters supplied to
gnutls_x509_privkey_import_rsa_raw() are actually checked for somewhat
sane values. Since we were passing the same values for all parameters,
this check fails and the device certificate is never generated.
However due to missing checks the pairing record was saved anyway, with
an empty device certificate. This led to TLS errors during communication,
leading to the "GnuTLS: Error in pull function" error message appearing
and the communication to fail.
This commit fixes the issue by passing some sane values, and also improves
the overall error handling during generation of the paring record.