=head1 NOTES
-The control string B<str> should be universally useable and not depend
+The control string B<str> should be universally usable and not depend
on details of the library configuration (ciphers compiled in). Thus no
syntax checking takes place. Items that are not recognized, because the
-corrensponding ciphers are not compiled in or because they are mistyped,
+corresponding ciphers are not compiled in or because they are mistyped,
are simply ignored. Failure is only flagged if no ciphers could be collected
at all.