kopia lustrzana https://github.com/espressif/esp-idf
145 wiersze
3.8 KiB
C
145 wiersze
3.8 KiB
C
/*
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* SPDX-FileCopyrightText: 2018-2023 Espressif Systems (Shanghai) CO LTD
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include <string.h>
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#include <stdio.h>
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#include <assert.h>
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#include "hal/sha_hal.h"
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#include "hal/sha_types.h"
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#include "soc/soc_caps.h"
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#include "esp_log.h"
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#include <mbedtls/sha1.h>
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#include <mbedtls/sha256.h>
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#include <mbedtls/sha512.h>
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#if SOC_SHA_SUPPORT_PARALLEL_ENG
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#include "sha/sha_parallel_engine.h"
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#elif SOC_SHA_SUPPORT_DMA
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#include "sha/sha_dma.h"
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#else
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#include "sha/sha_block.h"
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#endif
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static const char *TAG = "esp_sha";
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void esp_sha(esp_sha_type sha_type, const unsigned char *input, size_t ilen, unsigned char *output)
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{
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union {
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#if SOC_SHA_SUPPORT_SHA1
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mbedtls_sha1_context sha1;
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#endif
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#if SOC_SHA_SUPPORT_SHA256
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mbedtls_sha256_context sha256;
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#endif
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#if SOC_SHA_SUPPORT_SHA384 || SOC_SHA_SUPPORT_SHA512
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mbedtls_sha512_context sha512;
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#endif
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} ctx;
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int ret __attribute__((unused));
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assert(input != NULL && output != NULL);
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#if SOC_SHA_SUPPORT_SHA1
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if (sha_type == SHA1) {
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mbedtls_sha1_init(&ctx.sha1);
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mbedtls_sha1_starts(&ctx.sha1);
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ret = mbedtls_sha1_update(&ctx.sha1, input, ilen);
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assert(ret == 0);
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ret = mbedtls_sha1_finish(&ctx.sha1, output);
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assert(ret == 0);
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mbedtls_sha1_free(&ctx.sha1);
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return;
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}
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#endif //SOC_SHA_SUPPORT_SHA1
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#if SOC_SHA_SUPPORT_SHA256
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if (sha_type == SHA2_256) {
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mbedtls_sha256_init(&ctx.sha256);
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mbedtls_sha256_starts(&ctx.sha256, 0);
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ret = mbedtls_sha256_update(&ctx.sha256, input, ilen);
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assert(ret == 0);
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ret = mbedtls_sha256_finish(&ctx.sha256, output);
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assert(ret == 0);
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mbedtls_sha256_free(&ctx.sha256);
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return;
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}
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#endif //SOC_SHA_SUPPORT_SHA256
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#if SOC_SHA_SUPPORT_SHA384
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if (sha_type == SHA2_384) {
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mbedtls_sha512_init(&ctx.sha512);
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mbedtls_sha512_starts(&ctx.sha512, 1);
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ret = mbedtls_sha512_update(&ctx.sha512, input, ilen);
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assert(ret == 0);
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ret = mbedtls_sha512_finish(&ctx.sha512, output);
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assert(ret == 0);
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mbedtls_sha512_free(&ctx.sha512);
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return;
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}
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#endif //SOC_SHA_SUPPORT_SHA384
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#if SOC_SHA_SUPPORT_SHA512
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if (sha_type == SHA2_512) {
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mbedtls_sha512_init(&ctx.sha512);
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mbedtls_sha512_starts(&ctx.sha512, 0);
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ret = mbedtls_sha512_update(&ctx.sha512, input, ilen);
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assert(ret == 0);
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ret = mbedtls_sha512_finish(&ctx.sha512, output);
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assert(ret == 0);
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mbedtls_sha512_free(&ctx.sha512);
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return;
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}
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#endif //SOC_SHA_SUPPORT_SHA512
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ESP_LOGE(TAG, "SHA type %d not supported", (int)sha_type);
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abort();
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}
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#if SOC_SHA_SUPPORT_SHA512_T
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/* The initial hash value for SHA512/t is generated according to the
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algorithm described in the TRM, chapter SHA-Accelerator
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*/
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int esp_sha_512_t_init_hash(uint16_t t)
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{
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uint32_t t_string = 0;
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uint8_t t0, t1, t2, t_len;
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if (t == 384) {
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ESP_LOGE(TAG, "Invalid t for SHA512/t, t = %u,cannot be 384", t);
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return -1;
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}
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if (t <= 9) {
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t_string = (uint32_t)((1 << 23) | ((0x30 + t) << 24));
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t_len = 0x48;
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} else if (t <= 99) {
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t0 = t % 10;
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t1 = (t / 10) % 10;
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t_string = (uint32_t)((1 << 15) | ((0x30 + t0) << 16) |
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(((0x30 + t1) << 24)));
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t_len = 0x50;
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} else if (t <= 512) {
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t0 = t % 10;
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t1 = (t / 10) % 10;
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t2 = t / 100;
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t_string = (uint32_t)((1 << 7) | ((0x30 + t0) << 8) |
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(((0x30 + t1) << 16) + ((0x30 + t2) << 24)));
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t_len = 0x58;
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} else {
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ESP_LOGE(TAG, "Invalid t for SHA512/t, t = %u, must equal or less than 512", t);
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return -1;
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}
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sha_hal_sha512_init_hash(t_string, t_len);
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return 0;
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}
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#endif //SOC_SHA_SUPPORT_SHA512_T
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