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+CCM interface changes: impact for alternative implementations
+-------------------------------------------------------------
+
+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.