components/bootloader_support/src/idf/bootloader_sha.c (ESP-IDF)

/* * SPDX-FileCopyrightText: 2017-2021 Espressif Systems (Shanghai) CO LTD * * SPDX-License-Identifier: Apache-2.0 */ #include "bootloader_sha.h" #include "bootloader_flash_priv.h" #include <stdbool.h> #include <string.h> #include <assert.h> #include <sys/param.h> #include <mbedtls/sha256.h> bootloader_sha256_handle_t bootloader_sha256_start(void) { mbedtls_sha256_context *ctx = (mbedtls_sha256_context *)malloc(sizeof(mbedtls_sha256_context)); if (!ctx) { return NULL; } mbedtls_sha256_init(ctx); int ret = mbedtls_sha256_starts(ctx, false); if (ret != 0) { return NULL; } return ctx; } void bootloader_sha256_data(bootloader_sha256_handle_t handle, const void *data, size_t data_len) { assert(handle != NULL); mbedtls_sha256_context *ctx = (mbedtls_sha256_context *)handle; int ret = mbedtls_sha256_update(ctx, data, data_len); assert(ret == 0); (void)ret; } void bootloader_sha256_finish(bootloader_sha256_handle_t handle, uint8_t *digest) { assert(handle != NULL); mbedtls_sha256_context *ctx = (mbedtls_sha256_context *)handle; if (digest != NULL) { int ret = mbedtls_sha256_finish(ctx, digest); assert(ret == 0); (void)ret; } mbedtls_sha256_free(ctx); free(handle); handle = NULL; }