Gets the result of running the "tls1multi_aad" operation.
-=item "cts_mode" (B<OSSL_CIPHER_PARAM_CTS_MODE>) <utf8 string>
+=item "cts_mode" (B<OSSL_CIPHER_PARAM_CTS_MODE>) <UTF8 string>
Sets the cipher text stealing mode. For all modes the output size is the same as
the input size.