Specifies whether or not to try a secondary fingerprint algorithm.
0 (no secondary algorithm used.)
0, 1, y, Yes, yes
Optionally enables a second algorithm to generate certificate fingerprints if the first failed to find a mapping. The algorithm
used is SHA1, the default used by cascertreg, see
cascertreg for more information.
Note: If fingerprint algorithm is not set or is set to SHA1, setting this option has no effect. See
fingerprint algorithm for more information.