diff --git a/include/mbedcrypto/ccm.h b/include/mbedcrypto/ccm.h
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+++ b/include/mbedcrypto/ccm.h
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+/**
+ * \file ccm.h
+ *
+ * \brief This file provides an API for the CCM authenticated encryption
+ *        mode for block ciphers.
+ *
+ * CCM combines Counter mode encryption with CBC-MAC authentication
+ * for 128-bit block ciphers.
+ *
+ * Input to CCM includes the following elements:
+ * <ul><li>Payload - data that is both authenticated and encrypted.</li>
+ * <li>Associated data (Adata) - data that is authenticated but not
+ * encrypted, For example, a header.</li>
+ * <li>Nonce - A unique value that is assigned to the payload and the
+ * associated data.</li></ul>
+ *
+ */
+/*
+ *  Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of Mbed Crypto (https://tls.mbed.org)
+ */
+
+#ifndef MBEDCRYPTO_CCM_H
+#define MBEDCRYPTO_CCM_H
+
+#include "cipher.h"
+
+#define MBEDCRYPTO_ERR_CCM_BAD_INPUT       -0x000D /**< Bad input parameters to the function. */
+#define MBEDCRYPTO_ERR_CCM_AUTH_FAILED     -0x000F /**< Authenticated decryption failed. */
+#define MBEDCRYPTO_ERR_CCM_HW_ACCEL_FAILED -0x0011 /**< CCM hardware accelerator failed. */
+
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if !defined(MBEDCRYPTO_CCM_ALT)
+// Regular implementation
+//
+
+/**
+ * \brief    The CCM context-type definition. The CCM context is passed
+ *           to the APIs called.
+ */
+typedef struct {
+    mbedcrypto_cipher_context_t cipher_ctx;    /*!< The cipher context used. */
+}
+mbedcrypto_ccm_context;
+
+#else  /* MBEDCRYPTO_CCM_ALT */
+#include "ccm_alt.h"
+#endif /* MBEDCRYPTO_CCM_ALT */
+
+/**
+ * \brief           This function initializes the specified CCM context,
+ *                  to make references valid, and prepare the context
+ *                  for mbedcrypto_ccm_setkey() or mbedcrypto_ccm_free().
+ *
+ * \param ctx       The CCM context to initialize.
+ */
+void mbedcrypto_ccm_init( mbedcrypto_ccm_context *ctx );
+
+/**
+ * \brief           This function initializes the CCM context set in the
+ *                  \p ctx parameter and sets the encryption key.
+ *
+ * \param ctx       The CCM context to initialize.
+ * \param cipher    The 128-bit block cipher to use.
+ * \param key       The encryption key.
+ * \param keybits   The key size in bits. This must be acceptable by the cipher.
+ *
+ * \return          \c 0 on success.
+ * \return          A CCM or cipher-specific error code on failure.
+ */
+int mbedcrypto_ccm_setkey( mbedcrypto_ccm_context *ctx,
+                        mbedcrypto_cipher_id_t cipher,
+                        const unsigned char *key,
+                        unsigned int keybits );
+
+/**
+ * \brief   This function releases and clears the specified CCM context
+ *          and underlying cipher sub-context.
+ *
+ * \param ctx       The CCM context to clear.
+ */
+void mbedcrypto_ccm_free( mbedcrypto_ccm_context *ctx );
+
+/**
+ * \brief           This function encrypts a buffer using CCM.
+ *
+ *
+ * \note            The tag is written to a separate buffer. To concatenate
+ *                  the \p tag with the \p output, as done in <em>RFC-3610:
+ *                  Counter with CBC-MAC (CCM)</em>, use
+ *                  \p tag = \p output + \p length, and make sure that the
+ *                  output buffer is at least \p length + \p tag_len wide.
+ *
+ * \param ctx       The CCM context to use for encryption.
+ * \param length    The length of the input data in Bytes.
+ * \param iv        Initialization vector (nonce).
+ * \param iv_len    The length of the IV in Bytes: 7, 8, 9, 10, 11, 12, or 13.
+ * \param add       The additional data field.
+ * \param add_len   The length of additional data in Bytes.
+ *                  Must be less than 2^16 - 2^8.
+ * \param input     The buffer holding the input data.
+ * \param output    The buffer holding the output data.
+ *                  Must be at least \p length Bytes wide.
+ * \param tag       The buffer holding the tag.
+ * \param tag_len   The length of the tag to generate in Bytes:
+ *                  4, 6, 8, 10, 12, 14 or 16.
+ *
+ * \return          \c 0 on success.
+ * \return          A CCM or cipher-specific error code on failure.
+ */
+int mbedcrypto_ccm_encrypt_and_tag( mbedcrypto_ccm_context *ctx, size_t length,
+                         const unsigned char *iv, size_t iv_len,
+                         const unsigned char *add, size_t add_len,
+                         const unsigned char *input, unsigned char *output,
+                         unsigned char *tag, size_t tag_len );
+
+/**
+ * \brief           This function performs a CCM authenticated decryption of a
+ *                  buffer.
+ *
+ * \param ctx       The CCM context to use for decryption.
+ * \param length    The length of the input data in Bytes.
+ * \param iv        Initialization vector.
+ * \param iv_len    The length of the IV in Bytes: 7, 8, 9, 10, 11, 12, or 13.
+ * \param add       The additional data field.
+ * \param add_len   The length of additional data in Bytes.
+ *                  Must be less than 2^16 - 2^8.
+ * \param input     The buffer holding the input data.
+ * \param output    The buffer holding the output data.
+ *                  Must be at least \p length Bytes wide.
+ * \param tag       The buffer holding the tag.
+ * \param tag_len   The length of the tag in Bytes.
+ *                  4, 6, 8, 10, 12, 14 or 16.
+ *
+ * \return          \c 0 on success. This indicates that the message is authentic.
+ * \return          #MBEDCRYPTO_ERR_CCM_AUTH_FAILED if the tag does not match.
+ * \return          A cipher-specific error code on calculation failure.
+ */
+int mbedcrypto_ccm_auth_decrypt( mbedcrypto_ccm_context *ctx, size_t length,
+                      const unsigned char *iv, size_t iv_len,
+                      const unsigned char *add, size_t add_len,
+                      const unsigned char *input, unsigned char *output,
+                      const unsigned char *tag, size_t tag_len );
+
+
+#if defined(MBEDCRYPTO_SELF_TEST) && defined(MBEDCRYPTO_AES_C)
+/**
+ * \brief          The CCM checkup routine.
+ *
+ * \return         \c 0 on success.
+ * \return         \c 1 on failure.
+ */
+int mbedcrypto_ccm_self_test( int verbose );
+#endif /* MBEDCRYPTO_SELF_TEST && MBEDCRYPTO_AES_C */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDCRYPTO_CCM_H */