kopia lustrzana https://github.com/espressif/esp-idf
79 wiersze
2.4 KiB
C
79 wiersze
2.4 KiB
C
/*
|
|
* SPDX-FileCopyrightText: 2022 Espressif Systems (Shanghai) CO LTD
|
|
*
|
|
* SPDX-License-Identifier: Apache-2.0
|
|
*/
|
|
|
|
#pragma once
|
|
|
|
#ifndef _ESP_RSA_SIGN_ALT_H_
|
|
#define _ESP_RSA_SIGN_ALT_H_
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
#include "esp_ds.h"
|
|
#include "mbedtls/md.h"
|
|
|
|
/**
|
|
* @brief ESP-DS data context
|
|
*
|
|
* @note This structure includes encrypted private key parameters such as ciphertext_c, initialization vector, efuse_key_id, RSA key length, which are obtained when DS peripheral is configured.
|
|
*/
|
|
|
|
/* Context for encrypted private key data required for DS */
|
|
typedef struct esp_ds_data_ctx {
|
|
esp_ds_data_t *esp_ds_data;
|
|
uint8_t efuse_key_id; /* efuse block id in which DS_KEY is stored e.g. 0,1*/
|
|
uint16_t rsa_length_bits; /* length of RSA private key in bits e.g. 2048 */
|
|
} esp_ds_data_ctx_t;
|
|
|
|
/**
|
|
* @brief Initializes internal DS data context
|
|
*
|
|
* This function allocates and initializes internal ds data context which is used for Digital Signature operation.
|
|
*
|
|
* @in ds_data ds_data context containing encrypted private key parameters
|
|
* @return
|
|
* - ESP_OK In case of succees
|
|
* - ESP_ERR_NO_MEM In case internal context could not be allocated.
|
|
* - ESP_ERR_INVALID_ARG in case input parametrers are NULL
|
|
*
|
|
*/
|
|
esp_err_t esp_ds_init_data_ctx(esp_ds_data_ctx_t *ds_data);
|
|
|
|
/**
|
|
*
|
|
* @brief Release the ds lock acquired for the DS operation (then the DS peripheral can be used for other TLS connection)
|
|
*
|
|
*/
|
|
void esp_ds_release_ds_lock(void);
|
|
|
|
/**
|
|
*
|
|
* @brief Alternate implementation for mbedtls_rsa_rsassa_pkcs1_v15_sign, Internally makes use
|
|
* of DS module to perform hardware accelerated RSA sign operation
|
|
*/
|
|
int esp_ds_rsa_sign( void *ctx,
|
|
int (*f_rng)(void *, unsigned char *, size_t), void *p_rng,
|
|
mbedtls_md_type_t md_alg, unsigned int hashlen,
|
|
const unsigned char *hash, unsigned char *sig );
|
|
|
|
/*
|
|
* @brief Get RSA key length in bytes from internal DS context
|
|
*
|
|
* @return RSA key length in bytes
|
|
*/
|
|
size_t esp_ds_get_keylen(void *ctx);
|
|
|
|
/*
|
|
* @brief Set timeout (equal to TLS session timeout), so that DS module usage can be synchronized in case of multiple TLS connections using DS module,
|
|
*/
|
|
void esp_ds_set_session_timeout(int timeout);
|
|
#ifdef __cplusplus
|
|
}
|
|
#endif
|
|
|
|
#endif /* _ESP_RSA_SIGN_ALT_H_ */
|