Function esp_idf_svc::sys::mbedtls_cipher_cmac_reset

source ยท
pub unsafe extern "C" fn mbedtls_cipher_cmac_reset(
    ctx: *mut mbedtls_cipher_context_t,
) -> i32
Expand description

\brief This function starts a new CMAC operation with the same key as the previous one.

                 It should be called after finishing the previous CMAC
                 operation with mbedtls_cipher_cmac_finish().
                 After calling this function,
                 call mbedtls_cipher_cmac_update() to supply the new
                 CMAC operation with data.

\param ctx The cipher context used for the CMAC operation.

\return \c 0 on success. \return #MBEDTLS_ERR_MD_BAD_INPUT_DATA if parameter verification fails.