diff options
Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_ecdh.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_ecdh.c | 286 |
1 files changed, 286 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_ecdh.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_ecdh.c new file mode 100644 index 0000000..3d7d798 --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/nrf_crypto_ecdh.c @@ -0,0 +1,286 @@ +/** + * 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 "nrf_crypto_error.h" +#include "nrf_crypto_mem.h" +#include "nrf_crypto_ecc.h" +#include "nrf_crypto_ecdh.h" +#include "app_util.h" +#include "sdk_macros.h" + + +#if NRF_CRYPTO_ECC_ENABLED + + +#if NRF_CRYPTO_ECC_IMPLEMENTED_CURVES_COUNT > 1 + + +static const nrf_crypto_backend_ecdh_compute_fn_t compute_impl[] = +{ +#if NRF_CRYPTO_ECC_SECP160R1_ENABLED + nrf_crypto_backend_secp160r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP160R2_ENABLED + nrf_crypto_backend_secp160r2_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP192R1_ENABLED + nrf_crypto_backend_secp192r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP224R1_ENABLED + nrf_crypto_backend_secp224r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP256R1_ENABLED + nrf_crypto_backend_secp256r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP384R1_ENABLED + nrf_crypto_backend_secp384r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP521R1_ENABLED + nrf_crypto_backend_secp521r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP160K1_ENABLED + nrf_crypto_backend_secp160k1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP192K1_ENABLED + nrf_crypto_backend_secp192k1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP224K1_ENABLED + nrf_crypto_backend_secp224k1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_SECP256K1_ENABLED + nrf_crypto_backend_secp256k1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_BP256R1_ENABLED + nrf_crypto_backend_bp256r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_BP384R1_ENABLED + nrf_crypto_backend_bp384r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_BP512R1_ENABLED + nrf_crypto_backend_bp512r1_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_CURVE25519_ENABLED + nrf_crypto_backend_curve25519_ecdh_compute, +#endif +#if NRF_CRYPTO_ECC_ED25519_ENABLED + nrf_crypto_backend_ed25519_ecdh_compute, +#endif +}; + + +static const uint16_t compute_impl_context_size[] = +{ +#if NRF_CRYPTO_ECC_SECP160R1_ENABLED + NRF_CRYPTO_BACKEND_SECP160R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP160R2_ENABLED + NRF_CRYPTO_BACKEND_SECP160R2_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP192R1_ENABLED + NRF_CRYPTO_BACKEND_SECP192R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP224R1_ENABLED + NRF_CRYPTO_BACKEND_SECP224R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP256R1_ENABLED + NRF_CRYPTO_BACKEND_SECP256R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP384R1_ENABLED + NRF_CRYPTO_BACKEND_SECP384R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP521R1_ENABLED + NRF_CRYPTO_BACKEND_SECP521R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP160K1_ENABLED + NRF_CRYPTO_BACKEND_SECP160K1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP192K1_ENABLED + NRF_CRYPTO_BACKEND_SECP192K1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP224K1_ENABLED + NRF_CRYPTO_BACKEND_SECP224K1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_SECP256K1_ENABLED + NRF_CRYPTO_BACKEND_SECP256K1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_BP256R1_ENABLED + NRF_CRYPTO_BACKEND_BP256R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_BP384R1_ENABLED + NRF_CRYPTO_BACKEND_BP384R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_BP512R1_ENABLED + NRF_CRYPTO_BACKEND_BP512R1_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_CURVE25519_ENABLED + NRF_CRYPTO_BACKEND_CURVE25519_ECDH_CONTEXT_SIZE, +#endif +#if NRF_CRYPTO_ECC_ED25519_ENABLED + NRF_CRYPTO_BACKEND_ED25519_ECDH_CONTEXT_SIZE, +#endif +}; + +#define BACKEND_IMPL_GET(table, curve_type) (table)[(uint32_t)(curve_type)] + +#else + + +#if NRF_CRYPTO_ECC_SECP160R1_ENABLED +#define compute_impl nrf_crypto_backend_secp160r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP160R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP160R2_ENABLED +#define compute_impl nrf_crypto_backend_secp160r2_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP160R2_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP192R1_ENABLED +#define compute_impl nrf_crypto_backend_secp192r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP192R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP224R1_ENABLED +#define compute_impl nrf_crypto_backend_secp224r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP224R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP256R1_ENABLED +#define compute_impl nrf_crypto_backend_secp256r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP256R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP384R1_ENABLED +#define compute_impl nrf_crypto_backend_secp384r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP384R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP521R1_ENABLED +#define compute_impl nrf_crypto_backend_secp521r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP521R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP160K1_ENABLED +#define compute_impl nrf_crypto_backend_secp160k1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP160K1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP192K1_ENABLED +#define compute_impl nrf_crypto_backend_secp192k1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP192K1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP224K1_ENABLED +#define compute_impl nrf_crypto_backend_secp224k1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP224K1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_SECP256K1_ENABLED +#define compute_impl nrf_crypto_backend_secp256k1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_SECP256K1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_BP256R1_ENABLED +#define compute_impl nrf_crypto_backend_bp256r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_BP256R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_BP384R1_ENABLED +#define compute_impl nrf_crypto_backend_bp384r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_BP384R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_BP512R1_ENABLED +#define compute_impl nrf_crypto_backend_bp512r1_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_BP512R1_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_CURVE25519_ENABLED +#define compute_impl nrf_crypto_backend_curve25519_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_CURVE25519_ECDH_CONTEXT_SIZE +#elif NRF_CRYPTO_ECC_ED25519_ENABLED +#define compute_impl nrf_crypto_backend_ed25519_ecdh_compute +#define compute_impl_context_size NRF_CRYPTO_BACKEND_ED25519_ECDH_CONTEXT_SIZE +#else +#define compute_impl NULL +#define compute_impl_context_size 0 +#endif + +#define BACKEND_IMPL_GET(function, curve_type) (function) + +#endif + + +ret_code_t nrf_crypto_ecdh_compute( + nrf_crypto_ecdh_context_t * p_context, + nrf_crypto_ecc_private_key_t const * p_private_key, + nrf_crypto_ecc_public_key_t const * p_public_key, + uint8_t * p_shared_secret, + size_t * p_shared_secret_size) +{ + ret_code_t result; + void * p_allocated_context = NULL; + nrf_crypto_backend_ecdh_compute_fn_t backend_implementation; + size_t context_size; + nrf_crypto_ecc_curve_info_t const * p_info; + + // Get pointer to header for each key + nrf_crypto_internal_ecc_key_header_t const * p_private_key_header = + (nrf_crypto_internal_ecc_key_header_t const *)p_private_key; + nrf_crypto_internal_ecc_key_header_t const * p_public_key_header = + (nrf_crypto_internal_ecc_key_header_t const *)p_public_key; + + // Check and prepare parameters + result = nrf_crypto_internal_ecc_key_input_check( + p_private_key_header, + NRF_CRYPTO_INTERNAL_ECC_PRIVATE_KEY_INIT_VALUE); + VERIFY_SUCCESS(result); + result = nrf_crypto_internal_ecc_key_input_check( + p_public_key_header, + NRF_CRYPTO_INTERNAL_ECC_PUBLIC_KEY_INIT_VALUE); + VERIFY_SUCCESS(result); + VERIFY_TRUE(p_private_key_header->p_info == p_public_key_header->p_info, + NRF_ERROR_CRYPTO_ECDH_CURVE_MISMATCH); + p_info = p_private_key_header->p_info; + result = nrf_crypto_internal_ecc_raw_output_prepare( + p_shared_secret, + p_shared_secret_size, + p_info->raw_private_key_size); + VERIFY_SUCCESS(result); + + // Get backend specific information + backend_implementation = BACKEND_IMPL_GET(compute_impl, p_info->curve_type); + context_size = BACKEND_IMPL_GET(compute_impl_context_size, p_info->curve_type); + VERIFY_TRUE(backend_implementation != NULL, NRF_ERROR_CRYPTO_FEATURE_UNAVAILABLE); + + // Allocate context if not provided + if (p_context == NULL && context_size > 0) + { + p_allocated_context = NRF_CRYPTO_ALLOC(context_size); + VERIFY_TRUE(p_allocated_context != NULL, NRF_ERROR_CRYPTO_ALLOC_FAILED); + p_context = p_allocated_context; + } + + // Execute backend implementation + result = backend_implementation(p_context, p_private_key, p_public_key, p_shared_secret); + + // Deallocate context if allocated + if (p_allocated_context != NULL) + { + NRF_CRYPTO_FREE(p_allocated_context); + } + + return result; +} + + +#endif // NRF_CRYPTO_ECC_ENABLED |