port/include/sha512_alt.h (mbedTLS)

/* * SHA-512 implementation with hardware ESP32 support added. * Uses mbedTLS software implementation for failover when concurrent * SHA operations are in use. * * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved * Additions Copyright (C) 2016, Espressif Systems (Shanghai) PTE LTD * SPDX-License-Identifier: Apache-2.0 * * Licensed under the Apache License, Version 2.0 (the "License"); you may * not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and * limitations under the License. * */ #ifndef _SHA512_ALT_H_ #define _SHA512_ALT_H_ #if defined(MBEDTLS_SHA512_ALT) #include "hal/sha_types.h" #include "soc/soc_caps.h" #ifdef __cplusplus extern "C" { #endif #if SOC_SHA_SUPPORT_PARALLEL_ENG typedef enum { ESP_MBEDTLS_SHA512_UNUSED, /* first block hasn't been processed yet */ ESP_MBEDTLS_SHA512_HARDWARE, /* using hardware SHA engine */ ESP_MBEDTLS_SHA512_SOFTWARE, /* using software SHA */ } esp_mbedtls_sha512_mode; /** * \brief SHA-512 context structure */ typedef struct { uint64_t total[2]; /*!< number of bytes processed */ uint64_t state[8]; /*!< intermediate digest state */ unsigned char buffer[128]; /*!< data block being processed */ int is384; /*!< 0 => SHA-512, else SHA-384 */ esp_mbedtls_sha512_mode mode; } mbedtls_sha512_context; #elif SOC_SHA_SUPPORT_DMA || SOC_SHA_SUPPORT_RESUME typedef enum { ESP_SHA512_STATE_INIT, ESP_SHA512_STATE_IN_PROCESS } esp_sha512_state; /** * \brief SHA-512 context structure */ typedef struct { uint64_t total[2]; /*!< number of bytes processed */ uint64_t state[8]; /*!< intermediate digest state */ unsigned char buffer[128]; /*!< data block being processed */ int first_block; esp_sha_type mode; uint32_t t_val; /*!< t_val for 512/t mode */ esp_sha512_state sha_state; } mbedtls_sha512_context; /** * @brief Sets the specfic algorithm for SHA512 * * @param ctx The mbedtls sha512 context * * @param type The mode, used for setting SHA2_512224 and SHA2_512256: * */ void esp_sha512_set_mode(mbedtls_sha512_context *ctx, esp_sha_type type); /* For SHA512/t mode the intial hash value will depend on t */ void esp_sha512_set_t( mbedtls_sha512_context *ctx, uint16_t t_val); #endif #endif #ifdef __cplusplus } #endif #endif