esp-idf/components/esp_rom/include/esp8684/rom/sha.h

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/*
* SPDX-FileCopyrightText: 2020-2021 Espressif Systems (Shanghai) CO LTD
*
* SPDX-License-Identifier: Apache-2.0
*/
#ifndef _ROM_SHA_H_
#define _ROM_SHA_H_
#include <stdint.h>
#include <stdbool.h>
#include "ets_sys.h"
#ifdef __cplusplus
extern "C" {
#endif
typedef enum {
SHA1 = 0,
SHA2_224,
SHA2_256,
SHA_TYPE_MAX
} SHA_TYPE;
typedef struct SHAContext {
bool start;
bool in_hardware; // Is this context currently in peripheral? Needs to be manually cleared if multiple SHAs are interleaved
SHA_TYPE type;
uint32_t state[16]; // For SHA1/SHA224/SHA256, used 8, other used 16
unsigned char buffer[128]; // For SHA1/SHA224/SHA256, used 64, other used 128
uint32_t total_bits[4];
} SHA_CTX;
void ets_sha_enable(void);
void ets_sha_disable(void);
ets_status_t ets_sha_init(SHA_CTX *ctx, SHA_TYPE type);
ets_status_t ets_sha_starts(SHA_CTX *ctx, uint16_t sha512_t);
void ets_sha_get_state(SHA_CTX *ctx);
void ets_sha_process(SHA_CTX *ctx, const unsigned char *input);
void ets_sha_update(SHA_CTX *ctx, const unsigned char *input, uint32_t input_bytes, bool update_ctx);
ets_status_t ets_sha_finish(SHA_CTX *ctx, unsigned char *output);
#ifdef __cplusplus
}
#endif
#endif /* _ROM_SHA_H_ */