1 files changed, 149 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/nrf_sw/nrf_sw_backend_hash.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/nrf_sw/nrf_sw_backend_hash.c
new file mode 100644
index 0000000..1360662
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/nrf_sw/nrf_sw_backend_hash.c
@@ -0,0 +1,149 @@
+/**
+ * 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_NRF_SW)
+
+#include "nrf_sw_backend_hash.h"
+#include "sha256.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"
+
+#if defined(NRF_CRYPTO_BACKEND_NRF_SW_HASH_LITTLE_ENDIAN_DIGEST_ENABLED) &&     \
+    (NRF_CRYPTO_BACKEND_NRF_SW_HASH_LITTLE_ENDIAN_DIGEST_ENABLED == 1)
+
+    #define LITTLE_ENDIAN_HASH (true)
+
+#elif defined(NRF_CRYPTO_BACKEND_NRF_SW_HASH_LITTLE_ENDIAN_DIGEST_ENABLED) &&   \
+      (NRF_CRYPTO_BACKEND_NRF_SW_HASH_LITTLE_ENDIAN_DIGEST_ENABLED == 0)
+
+    #define LITTLE_ENDIAN_HASH (false)
+
+#else
+
+    #define LITTLE_ENDIAN_HASH (false)
+
+    #warning NRF_CRYPTO_BACKEND_NRF_SW_HASH_LITTLE_ENDIAN_DIGEST define not found in sdk_config.h (Is the sdk_config.h valid?).
+
+#endif
+
+static ret_code_t nrf_sw_backend_hash_sha256_init(void * const p_context)
+{
+    ret_code_t ret_val;
+
+    // No parameter testing on this level.
+    // This has been done on upper level.
+
+    sha256_context_t * p_backend_context
+        = &(((nrf_crypto_backend_hash_sha256_context_t *) p_context)->context);
+
+    ret_val = sha256_init(p_backend_context);
+
+    return ret_val;
+}
+
+static uint32_t nrf_sw_backend_hash_sha256_update(void     * const p_context,
+                                                  uint8_t  const * p_data,
+                                                  size_t           len)
+{
+    ret_code_t ret_val;
+
+    // Limited parameter testing on this level.
+    // This has been done on upper level.
+
+    sha256_context_t * p_backend_context
+        = &(((nrf_crypto_backend_hash_sha256_context_t * ) p_context)->context);
+
+    ret_val = sha256_update(p_backend_context, p_data, len);
+
+    return ret_val;
+}
+
+
+static uint32_t nrf_sw_backend_hash_sha256_finalize(void   * const p_context,
+                                                 uint8_t         * p_digest,
+                                                 size_t    * const p_digest_len)
+{
+    ret_code_t ret_val;
+
+    // Limited parameter testing on this level.
+    // This has been done on upper level.
+
+    sha256_context_t * p_backend_context
+        = &(((nrf_crypto_backend_hash_sha256_context_t * )p_context)->context);
+
+    if (NRF_CRYPTO_HASH_SIZE_SHA256 > *p_digest_len)
+    {
+        return NRF_ERROR_CRYPTO_OUTPUT_LENGTH;
+    }
+
+
+    ret_val = sha256_final(p_backend_context, p_digest, LITTLE_ENDIAN_HASH);
+
+    if (ret_val != NRF_SUCCESS)
+    {
+        return ret_val;
+    }
+
+    *p_digest_len = NRF_CRYPTO_HASH_SIZE_SHA256;
+
+    return NRF_SUCCESS;
+
+}
+
+
+const nrf_crypto_hash_info_t g_nrf_crypto_hash_sha256_info =
+{
+    .init_fn        = nrf_sw_backend_hash_sha256_init,
+    .update_fn      = nrf_sw_backend_hash_sha256_update,
+    .finalize_fn    = nrf_sw_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) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_NRF_SW)