Import Mbed OS hard-float snapshot

connectivity/drivers/mbedtls/TARGET_STM/ccm_alt.h

@@ -0,0 +1,86 @@
+/**
+ * \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>
+ *
+ * Definition of CCM:
+ * http://csrc.nist.gov/publications/nistpubs/800-38C/SP800-38C_updated-July20_2007.pdf
+ * RFC 3610 "Counter with CBC-MAC (CCM)"
+ *
+ * Related:
+ * RFC 5116 "An Interface and Algorithms for Authenticated Encryption"
+ *
+ * Definition of CCM*:
+ * IEEE 802.15.4 - IEEE Standard for Local and metropolitan area networks
+ * Integer representation is fixed most-significant-octet-first order and
+ * the representation of octets is most-significant-bit-first order. This is
+ * consistent with RFC 3610.
+ */
+/*
+ *  Copyright (C) 2006-2018, Arm Limited (or its affiliates), All Rights Reserved
+ *  Copyright (C) 2019-2020 STMicroelectronics, 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 implements ST CCM HW services based on API from mbed TLS
+ */
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef MBEDTLS_CCM_ALT_H
+#define MBEDTLS_CCM_ALT_H
+
+#if defined(MBEDTLS_CCM_ALT)
+/* Includes ------------------------------------------------------------------*/
+#include "cryp_stm32.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* Exported types ------------------------------------------------------------*/
+/**
+ * \brief    The CCM context-type definition. The CCM context is passed
+ *           to the APIs called.
+ */
+typedef struct mbedtls_ccm_context {
+    /* Encryption/Decryption key */
+    uint32_t ccm_key[8];
+
+    CRYP_HandleTypeDef hcryp_ccm;         /* CCM context                     */
+    uint32_t           ctx_save_cr;       /* save context for multi-context  */
+}
+mbedtls_ccm_context;
+
+/* Exported constants --------------------------------------------------------*/
+/* Exported macro ------------------------------------------------------------*/
+/* Exported functions --------------------------------------------------------*/
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* MBEDTLS_CCM_ALT */
+#endif /* MBEDTLS_CCM_ALT_H */