diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_hash.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_hash.c | 311 |
1 files changed, 311 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_hash.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_hash.c new file mode 100644 index 0000000..b1f91e1 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/cc310/cc310_backend_hash.c @@ -0,0 +1,311 @@ +/** + * 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. + * + */ + +#include "sdk_common.h" + +#if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310) + +#include "nrf.h" +#include "cc310_backend_hash.h" +#include "crys_hash.h" +#include "crys_hash_error.h" +#include "nrf_crypto_init.h" +#include "nrf_crypto_types.h" +#include "nrf_crypto_error.h" +#include "nrf_crypto_hash_shared.h" +#include "sdk_macros.h" +#include "nrf_log.h" +#include "nrf_assert.h" +#include "cc310_backend_mutex.h" +#include "cc310_backend_shared.h" +#include <drivers/nrfx_common.h> + +#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA256) || \ + NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA512) + +static ret_code_t hash_result_get(CRYSError_t error) +{ + ret_code_t ret_val; + + switch (error) + { + case CRYS_OK: + ret_val = NRF_SUCCESS; + break; + + case CRYS_HASH_INVALID_USER_CONTEXT_POINTER_ERROR: + ret_val = NRF_ERROR_CRYPTO_CONTEXT_NULL; + break; + + case CRYS_HASH_ILLEGAL_OPERATION_MODE_ERROR: + ret_val = NRF_ERROR_CRYPTO_FEATURE_UNAVAILABLE; + break; + + case CRYS_HASH_USER_CONTEXT_CORRUPTED_ERROR: + ret_val = NRF_ERROR_CRYPTO_CONTEXT_NOT_INITIALIZED; + break; + + // May be added to specialized errors for hash. + case CRYS_HASH_LAST_BLOCK_ALREADY_PROCESSED_ERROR: + ret_val = NRF_ERROR_CRYPTO_INTERNAL; + break; + + case CRYS_HASH_IS_NOT_SUPPORTED: + ret_val = NRF_ERROR_CRYPTO_FEATURE_UNAVAILABLE; + break; + + default: + ret_val = NRF_ERROR_CRYPTO_INTERNAL; + break; + } + + return ret_val; +} + +#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA256) + +static ret_code_t cc310_backend_hash_sha256_init(void * const p_context) +{ + uint32_t ret_val; + CRYSError_t crys_error; + CRYS_HASH_OperationMode_t hash_mode = CRYS_HASH_SHA256_mode; + + // No parameter testing on this level. + // This has been done on upper level. + + CRYS_HASHUserContext_t * const p_backend_context + = &(((nrf_crypto_backend_hash_sha256_context_t *)p_context)->context); + + crys_error = CRYS_HASH_Init(p_backend_context, hash_mode); + + ret_val = hash_result_get(crys_error); + + return ret_val; +} + + +static ret_code_t cc310_backend_hash_sha256_update(void * const p_context, + uint8_t const * p_data, + size_t size) +{ + ret_code_t ret_val; + CRYSError_t crys_error; + bool mutex_locked; + size_t cur_len; + size_t len_left = size; + uint8_t const * p_cur = p_data; + + // Limited parameter testing on this level. + // This has been done on upper level. + + CRYS_HASHUserContext_t * const p_backend_context + = &(((nrf_crypto_backend_hash_sha256_context_t *)p_context)->context); + + // Data in flash could lead to silently calculating wrong Hash. + VERIFY_TRUE(nrfx_is_in_ram(p_data), NRF_ERROR_CRYPTO_INPUT_LOCATION); + + mutex_locked = cc310_backend_mutex_trylock(); + VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY); + + cc310_backend_enable(); + + // If the input is larger than CC310_MAX_LENGTH_DMA_OPERATIONS, split into smaller + do + { + cur_len = (len_left > CC310_MAX_LENGTH_DMA_OPERATIONS) ? + CC310_MAX_LENGTH_DMA_OPERATIONS : len_left; + + crys_error = CRYS_HASH_Update(p_backend_context, (uint8_t *)p_cur, cur_len); + + len_left -= cur_len; + p_cur += cur_len; + + } while (crys_error == CRYS_OK && len_left > 0); + + cc310_backend_disable(); + + cc310_backend_mutex_unlock(); + + ret_val = hash_result_get(crys_error); + + + return ret_val; +} + + +static ret_code_t cc310_backend_hash_sha256_finalize(void * const p_context, + uint8_t * p_digest, + size_t * const p_digest_size) +{ + ret_code_t ret_val; + CRYSError_t crys_error; + bool mutex_locked; + CRYS_HASH_Result_t * p_int_digest = (CRYS_HASH_Result_t *)p_digest; + + // Limited parameter testing on this level. + // This has been done on upper level. + + CRYS_HASHUserContext_t * const p_backend_context + = &(((nrf_crypto_backend_hash_sha256_context_t * )p_context)->context); + + mutex_locked = cc310_backend_mutex_trylock(); + VERIFY_TRUE(mutex_locked, NRF_ERROR_CRYPTO_BUSY); + + // Do the hash finalize calculation + cc310_backend_enable(); + + crys_error = CRYS_HASH_Finish(p_backend_context, *p_int_digest); + + cc310_backend_disable(); + + cc310_backend_mutex_unlock(); + + ret_val = hash_result_get(crys_error); + if (ret_val == NRF_SUCCESS) + { + *p_digest_size = NRF_CRYPTO_HASH_SIZE_SHA256; + } + + return ret_val; +} + + +const nrf_crypto_hash_info_t g_nrf_crypto_hash_sha256_info = +{ + .init_fn = cc310_backend_hash_sha256_init, + .update_fn = cc310_backend_hash_sha256_update, + .finalize_fn = cc310_backend_hash_sha256_finalize, + .digest_size = NRF_CRYPTO_HASH_SIZE_SHA256, + .context_size = sizeof(nrf_crypto_backend_hash_sha256_context_t), + .hash_mode = NRF_CRYPTO_HASH_MODE_SHA256 +}; + +#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA256) + + +#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA512) + +// SHA-512 does not use CC310 hardware and therefore will not use a mutex lock + +static ret_code_t cc310_backend_hash_sha512_init(void * p_context) +{ + uint32_t ret_val; + CRYSError_t crys_error; + CRYS_HASH_OperationMode_t hash_mode = CRYS_HASH_SHA512_mode; + + // No parameter testing on this level. + // This has been done on upper level. + + CRYS_HASHUserContext_t * const p_backend_context + = &(((nrf_crypto_backend_hash_sha512_context_t * ) p_context)->context); + + crys_error = CRYS_HASH_Init(p_backend_context, hash_mode); + ret_val = hash_result_get(crys_error); + + return ret_val; +} + + +static ret_code_t cc310_backend_hash_sha512_update(void * const p_context, + uint8_t const * p_data, + size_t size) +{ + ret_code_t ret_val; + CRYSError_t crys_error; + + // Limited parameter testing on this level. + // This has been done on upper level. + + CRYS_HASHUserContext_t * const p_backend_context + = &(((nrf_crypto_backend_hash_sha512_context_t *)p_context)->context); + + // Data in flash could lead to silently calculating wrong Hash. + VERIFY_TRUE(nrfx_is_in_ram(p_data), NRF_ERROR_CRYPTO_INPUT_LOCATION); + + crys_error = CRYS_HASH_Update(p_backend_context, (uint8_t *)p_data, size); + + ret_val = hash_result_get(crys_error); + + return ret_val; +} + + +static ret_code_t cc310_backend_hash_sha512_finalize(void * const p_context, + uint8_t * p_digest, + size_t * const p_digest_size) +{ + ret_code_t ret_val; + CRYSError_t crys_error; + CRYS_HASH_Result_t * p_int_digest = (CRYS_HASH_Result_t *)p_digest; + + // Limited parameter testing on this level. + // This has been done on upper level. + + CRYS_HASHUserContext_t * const p_backend_context + = &(((nrf_crypto_backend_hash_sha512_context_t *) p_context)->context); + + crys_error = CRYS_HASH_Finish(p_backend_context, *p_int_digest); + ret_val = hash_result_get(crys_error); + + if (ret_val == NRF_SUCCESS) + { + *p_digest_size = NRF_CRYPTO_HASH_SIZE_SHA512; + } + + return ret_val; +} + + +const nrf_crypto_hash_info_t g_nrf_crypto_hash_sha512_info = +{ + .init_fn = cc310_backend_hash_sha512_init, + .update_fn = cc310_backend_hash_sha512_update, + .finalize_fn = cc310_backend_hash_sha512_finalize, + .digest_size = NRF_CRYPTO_HASH_SIZE_SHA512, + .context_size = sizeof(nrf_crypto_backend_hash_sha512_context_t), + .hash_mode = NRF_CRYPTO_HASH_MODE_SHA512 +}; + + +#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA512) + +#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA256) || NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310_HASH_SHA512) + +#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_CC310) |