kopia lustrzana https://github.com/espressif/esp-idf
74 wiersze
1.6 KiB
C
74 wiersze
1.6 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
#include <stddef.h>
|
|
#include <sys/lock.h>
|
|
|
|
#include "soc/soc_caps.h"
|
|
#include "soc/periph_defs.h"
|
|
#include "esp_private/periph_ctrl.h"
|
|
|
|
#include "sha/sha_block.h"
|
|
#include "hal/sha_hal.h"
|
|
|
|
|
|
static _lock_t s_sha_lock;
|
|
|
|
void esp_sha_write_digest_state(esp_sha_type sha_type, void *digest_state)
|
|
{
|
|
sha_hal_write_digest(sha_type, digest_state);
|
|
}
|
|
|
|
void esp_sha_read_digest_state(esp_sha_type sha_type, void *digest_state)
|
|
{
|
|
sha_hal_read_digest(sha_type, digest_state);
|
|
}
|
|
|
|
/* Return block size (in bytes) for a given SHA type */
|
|
inline static size_t block_length(esp_sha_type type)
|
|
{
|
|
switch (type) {
|
|
case SHA1:
|
|
case SHA2_224:
|
|
case SHA2_256:
|
|
return 64;
|
|
#if SOC_SHA_SUPPORT_SHA384
|
|
case SHA2_384:
|
|
#endif
|
|
#if SOC_SHA_SUPPORT_SHA512
|
|
case SHA2_512:
|
|
#endif
|
|
#if SOC_SHA_SUPPORT_SHA512_T
|
|
case SHA2_512224:
|
|
case SHA2_512256:
|
|
case SHA2_512T:
|
|
#endif
|
|
return 128;
|
|
default:
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
|
|
/* Lock the SHA peripheral and then enable it */
|
|
void esp_sha_acquire_hardware()
|
|
{
|
|
_lock_acquire(&s_sha_lock); /* Released when releasing hw with esp_sha_release_hardware() */
|
|
periph_module_enable(PERIPH_SHA_MODULE);
|
|
}
|
|
|
|
/* Disable SHA peripheral block and then release it */
|
|
void esp_sha_release_hardware()
|
|
{
|
|
periph_module_disable(PERIPH_SHA_MODULE);
|
|
_lock_release(&s_sha_lock);
|
|
}
|
|
|
|
|
|
void esp_sha_block(esp_sha_type sha_type, const void *data_block, bool is_first_block)
|
|
{
|
|
sha_hal_hash_block(sha_type, data_block, block_length(sha_type) / 4, is_first_block);
|
|
}
|