=head1 DESCRIPTION
EVP_KEYEXCH_fetch() fetches the key exchange implementation for the given
-B<algorithm> from any provider offering it, within the criteria given
-by the B<properties>.
+I<algorithm> from any provider offering it, within the criteria given
+by the I<properties>.
See L<provider(7)/Fetching algorithms> for further information.
The returned value must eventually be freed with EVP_KEYEXCH_free().
=head1 RETURN VALUES
EVP_KEYEXCH_fetch() returns a pointer to a B<EVP_KEYEXCH> for success
-or B<NULL> for failure.
+or NULL for failure.
EVP_KEYEXCH_up_ref() returns 1 for success or 0 otherwise.