The CCM interface has changed with the addition of support for multi-part operations. Five new API functions have been defined: mbedtls_ccm_starts(), mbedtls_ccm_set_lengths(), mbedtls_ccm_update_ad(), mbedtls_ccm_update() and mbedtls_ccm_finish(). Alternative implementations of CCM (MBEDTLS_CCM_ALT) have now to implement those additional five API functions.