| /* |
| * Copyright (c) 2018, The OpenThread Authors. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * 1. Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * 2. Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * 3. Neither the name of the copyright holder nor the |
| * names of its contributors may be used to endorse or promote products |
| * derived from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
| * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
| * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
| * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
| * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
| * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
| * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
| * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
| * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
| * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
| * POSSIBILITY OF SUCH DAMAGE. |
| */ |
| /* |
| * Copyright (C) 2006-2015, ARM Limited, 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. |
| */ |
| |
| #ifndef MBEDTLS_AES_ALT_H |
| #define MBEDTLS_AES_ALT_H |
| |
| #if !defined(MBEDTLS_CONFIG_FILE) |
| #include "config.h" |
| #else |
| #include MBEDTLS_CONFIG_FILE |
| #endif |
| |
| #include <stddef.h> |
| #include <stdint.h> |
| |
| #ifdef MBEDTLS_AES_ALT |
| |
| #include "ssi_aes.h" |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| #if defined(__CC_ARM) |
| #pragma anon_unions |
| #endif |
| |
| /** |
| * @brief AES context structure |
| */ |
| typedef struct |
| { |
| #if NRF_MBEDTLS_AES_ALT_INTERRUPT_CONTEXT |
| bool using_cc310; ///< Indicate whether it's using cc310 or not. |
| #endif |
| |
| #if !NRF_MBEDTLS_AES_ALT_INTERRUPT_CONTEXT |
| union |
| { |
| #endif // !NRF_MBEDTLS_AES_ALT_INTERRUPT_CONTEXT |
| struct |
| { |
| SaSiAesUserContext_t user_context; ///< User context for CC310 AES. |
| uint8_t key_buffer[32]; ///< Buffer for an encryption key. |
| SaSiAesUserKeyData_t key; ///< CC310 AES key structure. |
| SaSiAesEncryptMode_t mode; ///< Current context operation mode (encrypt/decrypt). |
| } hardware; |
| struct |
| { |
| int nr; ///< number of rounds */ |
| uint32_t *rk; ///< AES round keys */ |
| uint32_t buf[68]; ///< unaligned data */ |
| } software; |
| #if !NRF_MBEDTLS_AES_ALT_INTERRUPT_CONTEXT |
| }; |
| #endif // !NRF_MBEDTLS_AES_ALT_INTERRUPT_CONTEXT |
| } |
| mbedtls_aes_context; |
| |
| #if defined(__CC_ARM) |
| #pragma no_anon_unions |
| #endif |
| |
| /** |
| * @brief Initialize AES context |
| * |
| * @param[in,out] ctx AES context to be initialized |
| */ |
| void mbedtls_aes_init(mbedtls_aes_context * ctx); |
| |
| /** |
| * @brief Clear AES context |
| * |
| * @param[in,out] ctx AES context to be cleared |
| */ |
| void mbedtls_aes_free(mbedtls_aes_context * ctx); |
| |
| /** |
| * @brief AES key schedule (encryption) |
| * |
| * @param[in,out] ctx AES context to be initialized |
| * @param[in] key encryption key |
| * @param[in] keybits must be 128, 192 or 256 |
| * |
| * @return 0 if successful |
| */ |
| int mbedtls_aes_setkey_enc(mbedtls_aes_context * ctx, |
| const unsigned char * key, |
| unsigned int keybits); |
| |
| /** |
| * @brief AES key schedule (decryption) |
| * |
| * @param[in,out] ctx AES context to be initialized |
| * @param[in] key decryption key |
| * @param[in] keybits must be 128, 192 or 256 |
| * |
| * @return 0 if successful |
| */ |
| int mbedtls_aes_setkey_dec(mbedtls_aes_context * ctx, |
| const unsigned char * key, |
| unsigned int keybits); |
| |
| /** |
| * @brief AES-ECB block encryption/decryption |
| * |
| * @param[in,out] ctx AES context |
| * @param[in] mode MBEDTLS_AES_ENCRYPT or MBEDTLS_AES_DECRYPT |
| * @param[in] input 16-byte input block |
| * @param[out] output 16-byte output block |
| * |
| * @return 0 if successful |
| */ |
| int mbedtls_aes_crypt_ecb(mbedtls_aes_context * ctx, |
| int mode, |
| const unsigned char input[16], |
| unsigned char output[16]); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* MBEDTLS_AES_ALT */ |
| |
| #endif /* MBEDTLS_AES_ALT_H */ |