aboutsummaryrefslogtreecommitdiff
path: root/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/mbedtls/mbedtls_backend_hmac.c
diff options
context:
space:
mode:
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/mbedtls/mbedtls_backend_hmac.c')
-rw-r--r--thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/mbedtls/mbedtls_backend_hmac.c230
1 files changed, 230 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/mbedtls/mbedtls_backend_hmac.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/mbedtls/mbedtls_backend_hmac.c
new file mode 100644
index 0000000..0a6658c
--- /dev/null
+++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/mbedtls/mbedtls_backend_hmac.c
@@ -0,0 +1,230 @@
+/**
+ * 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_MBEDTLS)
+
+#include "nrf_log.h"
+#include "nrf_crypto_error.h"
+#include "nrf_crypto_types.h"
+#include "mbedtls_backend_hmac.h"
+
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA256)
+
+static ret_code_t mbedtls_backend_hmac_init_sha256(void * const p_context,
+ uint8_t const * p_key,
+ size_t key_size)
+{
+ int err_code;
+ nrf_crypto_backend_mbedtls_hmac_sha256_context_t * p_ctx =
+ (nrf_crypto_backend_mbedtls_hmac_sha256_context_t *)p_context;
+
+ // Memset context to 0. This is equevalend with a call to mbedtls_md_init().
+ memset(p_ctx->md_ctx_buffer, 0, sizeof(p_ctx->md_ctx_buffer));
+ memset(p_ctx->hmac_ctx_buffer, 0, sizeof(p_ctx->hmac_ctx_buffer));
+
+ // Set info and context pointers to buffer allocated by user.
+ // This is Normally handled by mbedtls_md_setup(), but has to be done here in order
+ // to avoid dynamic allocation of memory inside mbed TLS.
+ p_ctx->mbedtls_ctx.md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA256);
+ p_ctx->mbedtls_ctx.md_ctx = p_ctx->md_ctx_buffer;
+ p_ctx->mbedtls_ctx.hmac_ctx = p_ctx->hmac_ctx_buffer;
+
+ // Enter key to start
+ err_code = mbedtls_md_hmac_starts(&p_ctx->mbedtls_ctx,
+ p_key,
+ key_size);
+
+ if (err_code != 0)
+ {
+ NRF_LOG_ERROR("Error in mbedtls_md_hmac_starts: %u", err_code);
+ return NRF_ERROR_CRYPTO_INTERNAL;
+ }
+
+ return NRF_SUCCESS;
+}
+
+
+static ret_code_t mbedtls_backend_hmac_update_sha256(void * const p_context,
+ uint8_t const * p_data,
+ size_t size)
+{
+ int err_code;
+ nrf_crypto_backend_mbedtls_hmac_sha256_context_t * p_ctx =
+ (nrf_crypto_backend_mbedtls_hmac_sha256_context_t *)p_context;
+
+ err_code = mbedtls_md_hmac_update(&p_ctx->mbedtls_ctx, p_data, size);
+ if (err_code != 0)
+ {
+ NRF_LOG_ERROR("Error in mbedtls_md_hmac_update: %u", err_code);
+ return NRF_ERROR_CRYPTO_INTERNAL;
+ }
+
+ return NRF_SUCCESS;
+}
+
+
+static ret_code_t mbedtls_backend_hmac_finalize_sha256(void * const p_context,
+ uint8_t * p_digest,
+ size_t * const p_size)
+{
+ int err_code;
+ nrf_crypto_backend_mbedtls_hmac_sha256_context_t * const p_ctx =
+ (nrf_crypto_backend_mbedtls_hmac_sha256_context_t *)p_context;
+
+ // Set the digest length to 0 so that this is used in case of any error.
+ *p_size = 0;
+
+ err_code = mbedtls_md_hmac_finish(&p_ctx->mbedtls_ctx, p_digest);
+ if (err_code != 0)
+ {
+ NRF_LOG_ERROR("Error in mbedtls_md_hmac_finish: %u", err_code);
+ return NRF_ERROR_CRYPTO_INTERNAL;
+ }
+
+ *p_size = p_ctx->header.p_info->digest_size;
+
+ return NRF_SUCCESS;
+}
+
+
+// Information structure for HMAC SHA256 using mbed TLS backend.
+const nrf_crypto_hmac_info_t g_nrf_crypto_hmac_sha256_info =
+{
+ .init_fn = mbedtls_backend_hmac_init_sha256,
+ .update_fn = mbedtls_backend_hmac_update_sha256,
+ .finalize_fn = mbedtls_backend_hmac_finalize_sha256,
+ .digest_size = NRF_CRYPTO_HASH_SIZE_SHA256,
+ .context_size = sizeof(nrf_crypto_backend_hmac_sha256_context_t),
+ .type = NRF_CRYPTO_HMAC_SHA256_TYPE
+};
+
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA256)
+
+
+
+#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA512)
+
+static ret_code_t mbedtls_backend_hmac_init_sha512(void * const p_context,
+ uint8_t const * p_key,
+ size_t key_size)
+{
+ int err_code;
+ nrf_crypto_backend_mbedtls_hmac_sha512_context_t * p_ctx =
+ (nrf_crypto_backend_mbedtls_hmac_sha512_context_t *)p_context;
+
+ // Memset context to 0. This is equevalend with a call to mbedtls_md_init().
+ memset(p_ctx->md_ctx_buffer, 0, sizeof(p_ctx->md_ctx_buffer));
+ memset(p_ctx->hmac_ctx_buffer, 0, sizeof(p_ctx->hmac_ctx_buffer));
+
+ // Set info and context pointers to buffer allocated by user.
+ // (Normally handled by mbedtls_md_setup())
+ p_ctx->mbedtls_ctx.md_info = mbedtls_md_info_from_type(MBEDTLS_MD_SHA512);
+ p_ctx->mbedtls_ctx.md_ctx = p_ctx->md_ctx_buffer;
+ p_ctx->mbedtls_ctx.hmac_ctx = p_ctx->hmac_ctx_buffer;
+
+ // Enter key to start
+ err_code = mbedtls_md_hmac_starts(&p_ctx->mbedtls_ctx, p_key, key_size);
+ if (err_code != 0)
+ {
+ NRF_LOG_ERROR("Error in mbedtls_md_hmac_starts: %u", err_code);
+ return NRF_ERROR_CRYPTO_INTERNAL;
+ }
+
+ return NRF_SUCCESS;
+}
+
+
+static ret_code_t mbedtls_backend_hmac_update_sha512(void * const p_context,
+ uint8_t const * p_data,
+ size_t size)
+{
+ int err_code;
+ nrf_crypto_backend_mbedtls_hmac_sha512_context_t * p_ctx =
+ (nrf_crypto_backend_mbedtls_hmac_sha512_context_t *)p_context;
+
+ err_code = mbedtls_md_hmac_update(&p_ctx->mbedtls_ctx, p_data, size);
+ if (err_code != 0)
+ {
+ NRF_LOG_ERROR("Error in mbedtls_md_hmac_update: %u", err_code);
+ return NRF_ERROR_CRYPTO_INTERNAL;
+ }
+
+ return NRF_SUCCESS;
+}
+
+
+static ret_code_t mbedtls_backend_hmac_finalize_sha512(void * const p_context,
+ uint8_t * p_digest,
+ size_t * const p_size)
+{
+ int err_code;
+ nrf_crypto_backend_mbedtls_hmac_sha512_context_t * p_ctx =
+ (nrf_crypto_backend_mbedtls_hmac_sha512_context_t *)p_context;
+
+ // Set the digest length to 0 so that this is used in case of any error.
+ *p_size = 0;
+
+ err_code = mbedtls_md_hmac_finish(&p_ctx->mbedtls_ctx, p_digest);
+ if (err_code != 0)
+ {
+ NRF_LOG_ERROR("Error in mbedtls_md_hmac_finish: %u", err_code);
+ return NRF_ERROR_CRYPTO_INTERNAL; }
+
+ *p_size = p_ctx->header.p_info->digest_size;
+
+ return NRF_SUCCESS;
+}
+
+
+// Information structure for HMAC SHA512 using mbed TLS backend.
+const nrf_crypto_hmac_info_t g_nrf_crypto_hmac_sha512_info =
+{
+ .init_fn = mbedtls_backend_hmac_init_sha512,
+ .update_fn = mbedtls_backend_hmac_update_sha512,
+ .finalize_fn = mbedtls_backend_hmac_finalize_sha512,
+ .digest_size = NRF_CRYPTO_HASH_SIZE_SHA512,
+ .context_size = sizeof(nrf_crypto_backend_hmac_sha512_context_t),
+ .type = NRF_CRYPTO_HMAC_SHA512_TYPE
+};
+
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS_HMAC_SHA512)
+#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_MBEDTLS)
generated by cgit v1.2.3 (git 2.39.1) at 2024-06-26 15:05:56 +0000