# If digest or signature algorithm is "undef" then the algorithm
# needs special handling and is excluded from the cross reference table.
next if $p1 eq "undef" || $p2 eq "undef";
# If digest or signature algorithm is "undef" then the algorithm
# needs special handling and is excluded from the cross reference table.
next if $p1 eq "undef" || $p2 eq "undef";