This file is indexed.

/usr/src/openvswitch-1.4.0/lib/dh1024.pem is in openvswitch-datapath-dkms 1.4.0-1ubuntu1.

This file is owned by root:root, with mode 0o644.

The actual contents of the file can be viewed below.

 1
 2
 3
 4
 5
 6
 7
 8
 9
10
-----BEGIN DH PARAMETERS-----
MIGHAoGBAPSI/VhOSdvNILSd5JEHNmszbDgNRR0PfIizHHxbLY7288kjwEPwpVsY
jY67VYy4XTjTNP18F1dDox0YbN4zISy1Kv884bEpQBgRjXyEpwpy1obEAxnIByl6
ypUM2Zafq9AKUJsCRtMIPWakXUGfnHy9iUsiGSa6q6Jew1XpL3jHAgEC
-----END DH PARAMETERS-----

These are the 1024 bit DH parameters from "Assigned Number for SKIP Protocols"
(http://www.skip-vpn.org/spec/numbers.html).
See there for how they were generated.
Note that g is not a generator, but this is not a problem since p is a safe prime.