[Qemu-block] [PATCH v6] crypto: Implement TLS Pre-Shared Keys (PSK).

[Richard W.M. Jones]

v5 was here:

https://lists.gnu.org/archive/html/qemu-devel/2018-06/msg08491.html
https://lists.gnu.org/archive/html/qemu-devel/2018-07/msg00077.html

v6:

 - Make ECDHE-PSK dependent on GnuTLS >= 3.

 - Retested against nbdkit.

 - Retested with internal unit tests.

Rich.