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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/ecc/ecc.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/ecc/ecc.c | 206 |
1 files changed, 206 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/ecc/ecc.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/ecc/ecc.c new file mode 100644 index 0000000..cbc3d9d --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/ecc/ecc.c @@ -0,0 +1,206 @@ +/** + * Copyright (c) 2016 - 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. + * + */ +/** + * @brief Elliptic Curve Cryptography Interface + * + */ + +#include <stdint.h> +#include <stdio.h> +#include <string.h> +#include "nordic_common.h" +#include "app_timer.h" +#include "app_util.h" +#include "nrf_log.h" +#include "nrf_drv_rng.h" +#include "ecc.h" + +#include "uECC.h" + + +static int ecc_rng(uint8_t *dest, unsigned size) +{ + nrf_drv_rng_block_rand(dest, (uint32_t) size); + return 1; +} + +void ecc_init(bool rng) +{ + if (rng) + { + uECC_set_rng(ecc_rng); + } +} + +ret_code_t ecc_p256_keypair_gen(uint8_t *p_le_sk, uint8_t *p_le_pk) +{ + const struct uECC_Curve_t * p_curve; + + if (!p_le_sk || !p_le_pk) + { + return NRF_ERROR_NULL; + } + + if (!is_word_aligned(p_le_sk) || !is_word_aligned(p_le_pk)) + { + return NRF_ERROR_INVALID_ADDR; + } + + p_curve = uECC_secp256r1(); + + int ret = uECC_make_key((uint8_t *) p_le_pk, (uint8_t *) p_le_sk, p_curve); + if (!ret) + { + return NRF_ERROR_INTERNAL; + } + + return NRF_SUCCESS; +} + +ret_code_t ecc_p256_public_key_compute(uint8_t const *p_le_sk, uint8_t *p_le_pk) +{ + const struct uECC_Curve_t * p_curve; + + if (!p_le_sk || !p_le_pk) + { + return NRF_ERROR_NULL; + } + + if (!is_word_aligned(p_le_sk) || !is_word_aligned(p_le_pk)) + { + return NRF_ERROR_INVALID_ADDR; + } + + p_curve = uECC_secp256r1(); + + //NRF_LOG_INFO("uECC_compute_public_key"); + int ret = uECC_compute_public_key((uint8_t *) p_le_sk, (uint8_t *) p_le_pk, p_curve); + if (!ret) + { + return NRF_ERROR_INTERNAL; + } + + //NRF_LOG_INFO("uECC_compute_public_key complete: %d", ret); + return NRF_SUCCESS; +} + +ret_code_t ecc_p256_shared_secret_compute(uint8_t const *p_le_sk, uint8_t const *p_le_pk, uint8_t *p_le_ss) +{ + const struct uECC_Curve_t * p_curve; + + if (!p_le_sk || !p_le_pk || !p_le_ss) + { + return NRF_ERROR_NULL; + } + + if (!is_word_aligned(p_le_sk) || !is_word_aligned(p_le_pk) || !is_word_aligned(p_le_ss)) + { + return NRF_ERROR_INVALID_ADDR; + } + + p_curve = uECC_secp256r1(); + + //NRF_LOG_INFO("uECC_shared_secret"); + int ret = uECC_shared_secret((uint8_t *) p_le_pk, (uint8_t *) p_le_sk, p_le_ss, p_curve); + if (!ret) + { + return NRF_ERROR_INTERNAL; + } + + //NRF_LOG_INFO("uECC_shared_secret complete: %d", ret); + return NRF_SUCCESS; +} + +ret_code_t ecc_p256_sign(uint8_t const *p_le_sk, uint8_t const * p_le_hash, uint32_t hlen, uint8_t *p_le_sig) +{ + const struct uECC_Curve_t * p_curve; + + if (!p_le_sk || !p_le_hash || !p_le_sig) + { + return NRF_ERROR_NULL; + } + + if (!is_word_aligned(p_le_sk) || !is_word_aligned(p_le_hash) || !is_word_aligned(p_le_sig)) + { + return NRF_ERROR_INVALID_ADDR; + } + + p_curve = uECC_secp256r1(); + + //NRF_LOG_INFO("uECC_sign"); + int ret = uECC_sign((const uint8_t *) p_le_sk, (const uint8_t *) p_le_hash, (unsigned) hlen, (uint8_t *) p_le_sig, p_curve); + if (!ret) + { + return NRF_ERROR_INTERNAL; + } + + //NRF_LOG_INFO("uECC_sign complete: %d", ret); + return NRF_SUCCESS; +} + +ret_code_t ecc_p256_verify(uint8_t const *p_le_pk, uint8_t const * p_le_hash, uint32_t hlen, uint8_t const *p_le_sig) +{ + const struct uECC_Curve_t * p_curve; + + if (!p_le_pk || !p_le_hash || !p_le_sig) + { + return NRF_ERROR_NULL; + } + + if (!is_word_aligned(p_le_pk) || !is_word_aligned(p_le_hash) || !is_word_aligned(p_le_sig)) + { + return NRF_ERROR_INVALID_ADDR; + } + + p_curve = uECC_secp256r1(); + + //NRF_LOG_INFO("uECC_verify"); + int ret = uECC_verify((const uint8_t *) p_le_pk, (const uint8_t *) p_le_hash, (unsigned) hlen, (uint8_t *) p_le_sig, p_curve); + if (!ret) + { + return NRF_ERROR_INVALID_DATA; + } + + //NRF_LOG_INFO("uECC_verify complete: %d", ret); + return NRF_SUCCESS; + +} + + |