BN_mod_add() adds I<a> to I<b> modulo I<m> and places the non-negative
result in I<r>.
-BN_mod_sub() substracts I<b> from I<a> modulo I<m> and places the
+BN_mod_sub() subtracts I<b> from I<a> modulo I<m> and places the
non-negative result in I<r>.
BN_mod_mul() multiplies I<a> by I<b> and finds the non-negative
=head1 SEE ALSO
-L<bn(3)|bn(3)>, L<err(3)|err(3)>, L<BN_CTX_new(3)|BN_CTX_new(3)>,
+L<bn(3)|bn(3)>, L<ERR_get_error(3)|ERR_get_error(3)>, L<BN_CTX_new(3)|BN_CTX_new(3)>,
L<BN_add_word(3)|BN_add_word(3)>, L<BN_set_bit(3)|BN_set_bit(3)>
=head1 HISTORY