boot/espressif/keys.c

/*
 * Copyright (c) 2021 Espressif Systems (Shanghai) Co., Ltd.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

#include <bootutil/sign_key.h>
#include <mcuboot_config/mcuboot_config.h>

#if !defined(MCUBOOT_HW_KEY)
#if defined(MCUBOOT_SIGN_RSA)
#define HAVE_KEYS
extern const unsigned char rsa_pub_key[];
extern const unsigned int rsa_pub_key_len;
#elif defined(MCUBOOT_SIGN_EC256)
#define HAVE_KEYS
extern const unsigned char ecdsa_pub_key[];
extern const unsigned int ecdsa_pub_key_len;
#elif defined(MCUBOOT_SIGN_ED25519)
#define HAVE_KEYS
extern const unsigned char ed25519_pub_key[];
extern const unsigned int ed25519_pub_key_len;
#endif

/*
 * NOTE: *_pub_key and *_pub_key_len are autogenerated based on the provided
 *       key file. If no key file was configured, the array and length must be
 *       provided and added to the build manually.
 */
#if defined(HAVE_KEYS)
const struct bootutil_key bootutil_keys[] = {
    {
#if defined(MCUBOOT_SIGN_RSA)
        .key = rsa_pub_key,
        .len = &rsa_pub_key_len,
#elif defined(MCUBOOT_SIGN_EC256)
        .key = ecdsa_pub_key,
        .len = &ecdsa_pub_key_len,
#elif defined(MCUBOOT_SIGN_ED25519)
        .key = ed25519_pub_key,
        .len = &ed25519_pub_key_len,
#endif
    },
};
const int bootutil_key_cnt = 1;
#endif /* HAVE_KEYS */
#else
unsigned int pub_key_len;
struct bootutil_key bootutil_keys[1] = {
    {
        .key = 0,
        .len = &pub_key_len,
    }
};
const int bootutil_key_cnt = 1;
#endif /* !MCUBOOT_HW_KEY */