Function cose_sign_decode_set_external_aad

pub unsafe extern "C" fn cose_sign_decode_set_external_aad(
    sign: *mut cose_sign_dec_t,
    ext: *const c_void,
    len: size_t,
)

@brief Set the external authenticated data of the decoded sign structure

@param sign Decoder sign struct @param ext aditional authenticated data @param len Lenght of the aad