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Diffstat (limited to 'thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/oberon/oberon_backend_hmac.c')
| -rw-r--r-- | thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/oberon/oberon_backend_hmac.c | 169 |
1 files changed, 169 insertions, 0 deletions
diff --git a/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/oberon/oberon_backend_hmac.c b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/oberon/oberon_backend_hmac.c new file mode 100644 index 0000000..a89c4ac --- /dev/null +++ b/thirdparty/nRF5_SDK_15.0.0_a53641a/components/libraries/crypto/backend/oberon/oberon_backend_hmac.c @@ -0,0 +1,169 @@ +/** + * 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_OBERON) + +#include "nrf_log.h" +#include "nrf_crypto_error.h" +#include "nrf_crypto_types.h" +#include "oberon_backend_hmac.h" + + +#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA256) + +#define HMAC_SHA256_BLOCK_SIZE 64 + +static ret_code_t oberon_backend_hmac_init_sha256(void * const p_context, + uint8_t const * p_key, + size_t key_size) +{ + nrf_crypto_backend_oberon_hmac_sha256_context_t * p_ctx = + (nrf_crypto_backend_oberon_hmac_sha256_context_t *)p_context; + + occ_hmac_sha256_init(&p_ctx->oberon_ctx, p_key, key_size); + + return NRF_SUCCESS; +} + + +static ret_code_t oberon_backend_hmac_update_sha256(void * const p_context, + uint8_t const * p_data, + size_t size) +{ + nrf_crypto_backend_oberon_hmac_sha256_context_t * p_ctx = + (nrf_crypto_backend_oberon_hmac_sha256_context_t *)p_context; + + occ_hmac_sha256_update(&p_ctx->oberon_ctx, p_data, size); + + return NRF_SUCCESS; +} + + +static ret_code_t oberon_backend_hmac_finalize_sha256(void * const p_context, + uint8_t * p_digest, + size_t * const p_size) +{ + nrf_crypto_backend_oberon_hmac_sha256_context_t * const p_ctx = + (nrf_crypto_backend_oberon_hmac_sha256_context_t *)p_context; + + occ_hmac_sha256_final(p_digest, &p_ctx->oberon_ctx); + + // Assume operation was successful and update the digest size accordingly. + *p_size = p_ctx->header.p_info->digest_size; + + return NRF_SUCCESS; +} + + +// Information structure for HMAC SHA256 using Oberon backend. +const nrf_crypto_hmac_info_t g_nrf_crypto_hmac_sha256_info = +{ + .init_fn = oberon_backend_hmac_init_sha256, + .update_fn = oberon_backend_hmac_update_sha256, + .finalize_fn = oberon_backend_hmac_finalize_sha256, + .digest_size = NRF_CRYPTO_HASH_SIZE_SHA256, + .context_size = sizeof(nrf_crypto_backend_oberon_hmac_sha256_context_t), + .type = NRF_CRYPTO_HMAC_SHA256_TYPE +}; + +#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA256) + + + +#if NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA512) + +#define HMAC_SHA512_BLOCK_SIZE 128 + +static ret_code_t oberon_backend_hmac_init_sha512(void * const p_context, + uint8_t const * p_key, + size_t key_size) +{ + nrf_crypto_backend_oberon_hmac_sha512_context_t * p_ctx = + (nrf_crypto_backend_oberon_hmac_sha512_context_t *)p_context; + + occ_hmac_sha512_init(&p_ctx->oberon_ctx, p_key, key_size); + + return NRF_SUCCESS; +} + + +static ret_code_t oberon_backend_hmac_update_sha512(void * const p_context, + uint8_t const * p_data, + size_t size) +{ + nrf_crypto_backend_oberon_hmac_sha512_context_t * p_ctx = + (nrf_crypto_backend_oberon_hmac_sha512_context_t *)p_context; + + occ_hmac_sha512_update(&p_ctx->oberon_ctx, p_data, size); + + return NRF_SUCCESS; +} + + +static ret_code_t oberon_backend_hmac_finalize_sha512(void * const p_context, + uint8_t * p_digest, + size_t * const p_size) +{ + nrf_crypto_backend_oberon_hmac_sha512_context_t * const p_ctx = + (nrf_crypto_backend_oberon_hmac_sha512_context_t *)p_context; + + occ_hmac_sha512_final(p_digest, &p_ctx->oberon_ctx); + + // Assume operation was successful and update the digest size accordingly. + *p_size = p_ctx->header.p_info->digest_size; + + return NRF_SUCCESS; +} + + +// Information structure for HMAC SHA512 using Oberon backend. +const nrf_crypto_hmac_info_t g_nrf_crypto_hmac_sha512_info = +{ + .init_fn = oberon_backend_hmac_init_sha512, + .update_fn = oberon_backend_hmac_update_sha512, + .finalize_fn = oberon_backend_hmac_finalize_sha512, + .digest_size = NRF_CRYPTO_HASH_SIZE_SHA512, + .context_size = sizeof(nrf_crypto_backend_oberon_hmac_sha512_context_t), + .type = NRF_CRYPTO_HMAC_SHA512_TYPE +}; + +#endif // NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON_HMAC_SHA512) +#endif // NRF_MODULE_ENABLED(NRF_CRYPTO) && NRF_MODULE_ENABLED(NRF_CRYPTO_BACKEND_OBERON) |