[B<-decrypt>]
[B<-rand file...>]
[B<-writerand file>]
+[B<-primes num>]
[B<algorithm...>]
=head1 DESCRIPTION
Writes random data to the specified I<file> upon exit.
This can be used with a subsequent B<-rand> flag.
+=item B<-primes num>
+
+Generate a B<num>-prime RSA key and use it to run the benchmarks. This option
+is only effective if RSA algorithm is specified to test.
+
+=item B<-seconds num>
+
+Run bechmarks for B<num> seconds.
+
+=item B<-bytes num>
+
+Run bechmarks on B<num>-byte buffers. Affects ciphers, digests and the CSPRNG.
+
=item B<[zero or more test algorithms]>
If any options are given, B<speed> tests those algorithms, otherwise all of