As per RFC 6176 (2011) and RFC 7568 (2015).
Code-wise, we're left with the decision of what to do with a few
enumerators in QSsl::Protocol; I've made TlsV1SslV3 act as TlsV1,
and adjusted the description of AnyProtocol.
A new test was introduced - deprecatedProtocol() - to test that
we, indeed, do not allow use of SSL v2 and v3. protocol() and
protocolServerSide() were reduced to exclude the (now) no-op
and meaningless tests - neither client nor server side can
start a handshake now, since we bail out early in initSslContext().
[ChangeLog][QtNetwork][SSL] Support for SSLv2 and SSLv3
sockets has been dropped, as per RFC 6176 (2011)
and RFC 7568 (2015).
Change-Id: I2fe4e8c3e82adf7aa10d4bdc9e3f7b8c299f77b6
Reviewed-by: Edward Welbourne <edward.welbourne@qt.io>
Reviewed-by: Timur Pocheptsov <timur.pocheptsov@qt.io>
Reviewed-by: Mårten Nordheim <marten.nordheim@qt.io>
455951f590