=item "size" (B<OSSL_MAC_PARAM_SIZE>) <unsigned integer>
Sets the MAC size.
-By default, it is 16 for C<KMAC-128> and 32 for C<KMAC-256>.
+By default, it is 32 for C<KMAC-128> and 64 for C<KMAC-256>.
=item "block-size" (B<OSSL_MAC_PARAM_SIZE>) <unsigned integer>