MD4 cipher requires OpenSSL3's "legacy" provider, while MD5 fetched from
the "default" one. Both ciphers are unavailable in FIPS mode, however
MD5 is tolerated for RADIUS requests on local host.
The OpenSSL3 library context was missing the "default" provider, causing
MD5 encryption to fail in FIPS mode.
Resolves: rhbz#2068458
Signed-off-by: Julien Rische <jrische@redhat.com>
