+The number of bits in the generated prime. If not specified 1024 is used.
+
+=item B<dsa_paramgen_q_bits:numbits>
+
+The number of bits in the q parameter. Must be one of 160, 224 or 256. If not
+specified 160 is used.
+
+=item B<dsa_paramgen_md:digest>
+
+The digest to use during parameter generation. Must be one of B<sha1>, B<sha224>
+or B<sha256>. If set, then the number of bits in B<q> will match the output size
+of the specified digest and the B<dsa_paramgen_q_bits> parameter will be
+ignored. If not set, then a digest will be used that gives an output matching
+the number of bits in B<q>, i.e. B<sha1> if q length is 160, B<sha224> if it 224
+or B<sha256> if it is 256.