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- /**
- * Copyright (c) 2018 - 2020, 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 OPTIGA_BACKEND_ECC_H__
- #define OPTIGA_BACKEND_ECC_H__
- #include "sdk_config.h"
- #include "nordic_common.h"
- #if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OPTIGA)
- #include <stdint.h>
- #include <stdbool.h>
- #include "nrf_crypto_ecc.h"
- /*lint -save -e????*/
- #include "optiga/optiga_crypt.h"
- /*lint -restore*/
- #ifdef __cplusplus
- extern "C" {
- #endif
- /** @internal Magic OID that indicates a host supplied public key
- */
- #define NRF_CRYPTO_INFINEON_PUBKEY_HOST_OID 0xFFFF
- /** @internal Magic OID that indicates to export the private key
- */
- #define NRF_CRYPTO_INFINEON_PRIVKEY_HOST_OID 0xFFFE
- /** @internal @brief Common structure holding private key for the OPTIGA backend.
- */
- typedef struct nrf_crypto_backend_optiga_ecc_private_key_t
- {
- nrf_crypto_internal_ecc_key_header_t header; /**< @internal @brief Common ECC key header */
- optiga_key_id_t oid; // OID where the private key is stored
- uint8_t raw_privkey[64+2]; // Private Key encoded as DER OCTET STRING
- } nrf_crypto_backend_optiga_ecc_private_key_t;
- #define NRF_CRYPTO_INFINEON_SECP256R1_PRIVATE_KEY_FROM_OID(oid_value) { \
- .key_secp256r1 = { \
- .header = { \
- .init_value = NRF_CRYPTO_INTERNAL_ECC_PRIVATE_KEY_INIT_VALUE, \
- .p_info = &g_nrf_crypto_ecc_secp256r1_curve_info \
- }, \
- .oid = (optiga_key_id_t)(oid_value) \
- } \
- }
- /** @internal @brief Common structure holding public key for the OPTIGA backend.
- */
- typedef struct
- {
- nrf_crypto_internal_ecc_key_header_t header; /**< @internal @brief Common ECC key header */
- optiga_key_id_t oid; // OID where the public key is stored
- uint8_t raw_pubkey[64+4]; // Public Key encoded as DER BITSTRING with header
- } nrf_crypto_backend_secp256r1_public_key_t;
- #define NRF_CRYPTO_INFINEON_SECP256R1_PUBLIC_KEY_FROM_OID(oid_value) { \
- .key_secp256r1 = { \
- .header = { \
- .init_value = NRF_CRYPTO_INTERNAL_ECC_PUBLIC_KEY_INIT_VALUE, \
- .p_info = &g_nrf_crypto_ecc_secp256r1_curve_info \
- }, \
- .oid = (optiga_key_id_t)(oid_value) \
- } \
- }
- #define NRF_CRYPTO_INFINEON_SECP256R1_PUBLIC_KEY_RAW \
- NRF_CRYPTO_INFINEON_SECP256R1_PUBLIC_KEY_FROM_OID(NRF_CRYPTO_INFINEON_PUBKEY_HOST_OID)
- /** @internal See @ref nrf_crypto_backend_ecc_key_pair_generate_fn_t.
- */
- ret_code_t nrf_crypto_backend_optiga_key_pair_generate(
- void * p_context,
- void * p_private_key,
- void * p_public_key);
- /** @internal See @ref nrf_crypto_backend_ecc_public_key_calculate_fn_t.
- */
- ret_code_t nrf_crypto_backend_optiga_public_key_calculate(
- void * p_context,
- void const * p_private_key,
- void * p_public_key);
- /** @internal See @ref nrf_crypto_backend_ecc_private_key_from_raw_fn_t.
- */
- ret_code_t nrf_crypto_backend_optiga_private_key_from_raw(
- void * p_private_key,
- uint8_t const * p_raw_data);
- /** @internal See @ref nrf_crypto_backend_ecc_private_key_to_raw_fn_t.
- */
- ret_code_t nrf_crypto_backend_optiga_private_key_to_raw(
- void const * p_private_key,
- uint8_t * p_raw_data);
- /** @internal See @ref nrf_crypto_backend_ecc_public_key_from_raw_fn_t.
- */
- ret_code_t nrf_crypto_backend_optiga_public_key_from_raw(
- void * p_public_key,
- uint8_t const * p_raw_data);
- /** @internal See @ref nrf_crypto_backend_ecc_public_key_to_raw_fn_t.
- */
- ret_code_t nrf_crypto_backend_optiga_public_key_to_raw(
- void const * p_public_key,
- uint8_t * p_raw_data);
- /** @internal See @ref nrf_crypto_backend_ecc_key_free_fn_t.
- */
- ret_code_t nrf_crypto_backend_optiga_private_key_free(
- void * p_private_key);
- /** @internal See @ref nrf_crypto_backend_ecc_key_free_fn_t.
- */
- ret_code_t nrf_crypto_backend_optiga_public_key_free(
- void * p_public_key);
- #if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OPTIGA_ECC_SECP256R1)
- #if NRF_MODULE_ENABLED(NRF_CRYPTO_ECC_SECP256R1)
- #error "More than one backend enabled for secp256r1 (NIST 256-bit).");
- #endif
- #define NRF_CRYPTO_ECC_SECP256R1_ENABLED 1
- // Aliases for one common OPTIGA implementation
- #define nrf_crypto_backend_secp256r1_key_pair_generate nrf_crypto_backend_optiga_key_pair_generate
- #define nrf_crypto_backend_secp256r1_public_key_calculate nrf_crypto_backend_optiga_public_key_calculate
- #define nrf_crypto_backend_secp256r1_private_key_from_raw nrf_crypto_backend_optiga_private_key_from_raw
- #define nrf_crypto_backend_secp256r1_private_key_to_raw nrf_crypto_backend_optiga_private_key_to_raw
- #define nrf_crypto_backend_secp256r1_public_key_from_raw nrf_crypto_backend_optiga_public_key_from_raw
- #define nrf_crypto_backend_secp256r1_public_key_to_raw nrf_crypto_backend_optiga_public_key_to_raw
- #define nrf_crypto_backend_secp256r1_private_key_free nrf_crypto_backend_optiga_private_key_free
- #define nrf_crypto_backend_secp256r1_public_key_free nrf_crypto_backend_optiga_public_key_free
- // OPTIGA does not require context, so its size is 0.
- #define NRF_CRYPTO_BACKEND_SECP256R1_KEY_PAIR_GENERATE_CONTEXT_SIZE 0
- #define NRF_CRYPTO_BACKEND_SECP256R1_PUBLIC_KEY_CALCULATE_CONTEXT_SIZE 0
- // All OPTIGA curve types share the same private key data structures
- typedef nrf_crypto_backend_optiga_ecc_private_key_t nrf_crypto_backend_secp256r1_private_key_t;
- // Dummy typedef for unused context
- typedef uint32_t nrf_crypto_backend_secp256r1_key_pair_generate_context_t;
- typedef uint32_t nrf_crypto_backend_secp256r1_public_key_calculate_context_t;
- #endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OPTIGA_ECC_SECP256R1)
- #ifdef __cplusplus
- }
- #endif
- #endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OPTIGA)
- #endif // OPTIGA_BACKEND_ECC_H__
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