/** * 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. * */ #include "sdk_common.h" #include "sdk_config.h" #if NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OPTIGA) #include "nrf_crypto_init.h" #include "nrf_crypto_rng.h" #include "nrf_log.h" /*lint -save -e????*/ #include "optiga/optiga_util.h" #include "optiga/ifx_i2c/ifx_i2c.h" /*lint -restore*/ optiga_comms_t optiga_comms = {(void*)&ifx_i2c_context_0, NULL, NULL}; // need to forward declare these, because they are not exported through the PAL API void pal_gpio_init(void); void pal_os_event_init(void); /************************************************************************* * functions *************************************************************************/ static int32_t optiga_init(void) { int32_t status = (int32_t) OPTIGA_LIB_ERROR; // Initialize PAL pal_gpio_init(); pal_os_event_init(); status = optiga_util_open_application(&optiga_comms); if (OPTIGA_LIB_SUCCESS != status) { NRF_LOG_INFO("Failure: CmdLib_OpenApplication(): 0x%04X", status); return status; } NRF_LOG_INFO("Success: CmdLib_OpenApplication(): 0x%04X", status); return OPTIGA_LIB_SUCCESS; } /** @internal @brief Function to initialize OPTIGA backend - open the application. */ static ret_code_t optiga_backend_init(void) { if(optiga_init() != OPTIGA_LIB_SUCCESS) { return NRF_ERROR_INTERNAL; } #if defined(NRF_CRYPTO_RNG_AUTO_INIT_ENABLED) && (NRF_CRYPTO_RNG_AUTO_INIT_ENABLED == 1) ret_code_t ret_val; ret_val = nrf_crypto_rng_init(NULL, NULL); return ret_val; #elif defined(NRF_CRYPTO_RNG_AUTO_INIT_ENABLED) && (NRF_CRYPTO_RNG_AUTO_INIT_ENABLED == 0) return NRF_SUCCESS; #else #warning NRF_CRYPTO_RNG_AUTO_INIT_ENABLED define not found in sdk_config.h (Is the sdk_config.h valid?). #endif // NRF_CRYPTO_RNG_AUTO_INIT_ENABLED } /** @internal @brief Function to uninitialize OPTIGA backend - currently no implementation is required. */ static ret_code_t optiga_backend_uninit(void) { // Empty implementation return NRF_SUCCESS; } CRYPTO_BACKEND_REGISTER(nrf_crypto_backend_info_t const optiga_backend) = { .init_fn = optiga_backend_init, .uninit_fn = optiga_backend_uninit, }; #endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OPTIGA)