Function esp_idf_sys::mbedtls_md_hmac_reset
source ยท pub unsafe extern "C" fn mbedtls_md_hmac_reset(
ctx: *mut mbedtls_md_context_t,
) -> c_int
Expand description
\brief This function prepares to authenticate a new message with the same key as the previous HMAC operation.
You may call this function after mbedtls_md_hmac_finish().
Afterwards call mbedtls_md_hmac_update() to pass the new
input.
\param ctx The message digest context containing an embedded HMAC context.
\return \c 0 on success. \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA on parameter-verification failure.