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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_aes_shared.h')
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1 files changed, 218 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_aes_shared.h b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_aes_shared.h new file mode 100644 index 0000000..9878bcb --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_aes_shared.h @@ -0,0 +1,218 @@ +/** + * Copyright (c) 2018 - 2018, Nordic Semiconductor ASA + * + * 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, except as embedded into a Nordic + * Semiconductor ASA integrated circuit in a product or a software update for + * such product, 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 Nordic Semiconductor ASA nor the names of its + * contributors may be used to endorse or promote products derived from this + * software without specific prior written permission. + * + * 4. This software, with or without modification, must only be used with a + * Nordic Semiconductor ASA integrated circuit. + * + * 5. Any software provided in binary form under this license must not be reverse + * engineered, decompiled, modified and/or disassembled. + * + * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS + * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES + * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE + * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA 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. + * + */ + +#ifndef NRF_CRYPTO_AES_SHARED_H__ +#define NRF_CRYPTO_AES_SHARED_H__ + +/** @file + * + * @defgroup nrf_crypto_aes AES related functions + * @{ + * @ingroup nrf_crypto + * + * @brief Provides AES related functionality through nrf_crypto. + */ + +#include <stdint.h> +#include "nrf_crypto_types.h" + +#ifdef __cplusplus +extern "C" { +#endif + + +/**@internal @brief Magic value to signal that the nrf_crypto_hash context structure is initialized. + */ +#define NRF_CRYPTO_AES_INIT_MAGIC_VALUE (0x53454163) // ASCII "cAES" +#define NRF_CRYPTO_AES_UNINIT_MAGIC_VALUE (0x63414553) // ASCII "SEAc" + +#define NRF_CRYPTO_MBEDTLS_AES_IV_SIZE (16) + + +/** @internal @brief Enumeration of supported modes of operation in nrf_crypto_aes. + */ +typedef enum +{ + NRF_CRYPTO_AES_MODE_CBC, // supported by: MBEDTLS & CC310 + NRF_CRYPTO_AES_MODE_CBC_PAD_PCKS7, // supported by: MBEDTLS & CC310 + NRF_CRYPTO_AES_MODE_CFB, // supported by: MBEDTLS + NRF_CRYPTO_AES_MODE_CTR, // supported by: MBEDTLS & CC310 + NRF_CRYPTO_AES_MODE_ECB, // supported by: MBEDTLS & CC310 + NRF_CRYPTO_AES_MODE_ECB_PAD_PCKS7, // supported by: MBEDTLS & CC310 + + // Authentication modes + NRF_CRYPTO_AES_MODE_CBC_MAC, // supported by: MBEDTLS & CC310 + NRF_CRYPTO_AES_MODE_CBC_MAC_PAD_PCKS7, // supported by: MBEDTLS & CC310 + NRF_CRYPTO_AES_MODE_CMAC, // supported by: MBEDTLS & CC310 +} nrf_crypto_aes_mode_t; + +/**@internal @brief Type declaration to perform AES initialization in the nrf_crypto backend. + * + * This is internal API. See @ref nrf_crypto_aes_init for documentation. + */ +typedef ret_code_t (*aes_init_fn_t)(void * const p_context, nrf_crypto_operation_t operation); + +/**@internal @brief Type declaration to perform AES uninitialization in the nrf_crypto backend. + * + * This is internal API. See @ref nrf_crypto_aes_uninit for documentation. + */ +typedef ret_code_t (*aes_uninit_fn_t)(void * const p_context); + +/**@internal @brief Type declaration to set an AES key in the nrf_crypto backend. + * + * This is internal API. See @ref nrf_crypto_aes_key_set for documentation. + */ +typedef ret_code_t (*aes_key_set_fn_t)(void * const p_context, uint8_t * p_key); + +/**@internal @brief Type declaration to set an AES IV in the nrf_crypto backend. + * + * This is internal API. See @ref nrf_crypto_aes_iv_set for documentation. + */ +typedef ret_code_t (*aes_iv_set_fn_t)(void * const p_context, uint8_t * p_iv); + +/**@internal @brief Type declaration to get an AES IV in the nrf_crypto backend. + * + * This is internal API. See @ref nrf_crypto_aes_iv_get for documentation. + */ +typedef ret_code_t (*aes_iv_get_fn_t)(void * const p_context, uint8_t * p_iv); + +/**@internal @brief Type declaration to perform AES block operation in the nrf_crypto backend. + * + * This is internal API. See @ref nrf_crypto_aes_update for documentation. + */ +typedef ret_code_t (*aes_update_fn_t)(void * const p_context, + uint8_t * p_data_in, + size_t data_size, + uint8_t * p_data_out); + +/**@internal @brief Type declaration to finalize AES operation in the nrf_crypto backend. + * + * This is internal API. See @ref nrf_crypto_aes_finalize for documentation. + */ +typedef ret_code_t (*aes_finalize_fn_t)(void * const p_context, + uint8_t * p_data_in, + size_t data_size, + uint8_t * p_data_out, + size_t * p_data_out_size); + +/**@internal @brief Type declaration for an nrf_crypto_aes info structure. + * + * @details This structure contains the calling interface and any metadata required + * to call the nrf_crypto_aes API functions. + */ +typedef struct +{ + nrf_crypto_aes_mode_t const mode; + nrf_crypto_key_size_id_t const key_size; + size_t const context_size; + + aes_init_fn_t const init_fn; + aes_uninit_fn_t const uninit_fn; + aes_key_set_fn_t const key_set_fn; + aes_iv_set_fn_t const iv_set_fn; + aes_iv_get_fn_t const iv_get_fn; + aes_update_fn_t const update_fn; + aes_finalize_fn_t const finalize_fn; +} nrf_crypto_aes_info_t; + +/**@internal @brief Type declaration of internal representation of an AES context structure. + * + * @details This is an internal type that should not be used directly. + */ +typedef struct +{ + uint32_t init_value; + nrf_crypto_aes_info_t const * p_info; +} nrf_crypto_aes_internal_context_t; + + +/**@internal @brief Type declaration of internal representation of an AES backend context structure. + * with initialization vector. + * + * @details This is an internal type that should not be used directly. + */ +typedef struct +{ + nrf_crypto_operation_t operation; + + uint8_t iv[NRF_CRYPTO_MBEDTLS_AES_IV_SIZE]; // space for 128-bit initialization vector +} nrf_crypto_backend_aes_ctx_t; + +/**@internal @brief Type declaration of internal representation of an AES backend context structure + * without initialization vector. + * + * @details This is an internal type that should not be used directly. + */ +typedef struct +{ + nrf_crypto_operation_t operation; +} nrf_crypto_backend_no_iv_aes_ctx_t; + + +/**@internal @brief Function copies remainders (msg_ending_len) from p_message_buff to the + * p_padding_buff. Next it adds pkcs7-padding to have a 16 bytes p_padding_buff. + * + * @param[in] p_padding_buff Pointer the buffer with padded message. + * @param[in] p_message_buff Pointer to the buffer with message that must be padded. + * @param[in] msg_ending_len Message remainders length. + * + */ +ret_code_t padding_pkcs7_add(uint8_t * p_padding_buff, + uint8_t * p_message_buff, + uint8_t msg_ending_len); + + +/**@internal @brief Function calculate message length without padding. + * + * @param[in] p_padded_message Pointer the buffer with padded message. + * @param[in/out] p_message_len IN: padded message length + * OUT: message length without padding + */ +ret_code_t padding_pkcs7_remove(uint8_t * p_padded_message, + size_t * p_message_len); + + +#ifdef __cplusplus +} +#endif + +/** @} */ + +#endif // #ifndef NRF_CRYPTO_AES_SHARED_H__ |