1 /* 2 * SPDX-License-Identifier: Apache-2.0 3 * 4 * Copyright (c) 2018-2019 JUUL Labs 5 * Copyright (c) 2019-2021 Arm Limited 6 * Copyright (c) 2021 Nordic Semiconductor ASA 7 * 8 * Original license: 9 * 10 * Licensed to the Apache Software Foundation (ASF) under one 11 * or more contributor license agreements. See the NOTICE file 12 * distributed with this work for additional information 13 * regarding copyright ownership. The ASF licenses this file 14 * to you under the Apache License, Version 2.0 (the 15 * "License"); you may not use this file except in compliance 16 * with the License. You may obtain a copy of the License at 17 * 18 * http://www.apache.org/licenses/LICENSE-2.0 19 * 20 * Unless required by applicable law or agreed to in writing, 21 * software distributed under the License is distributed on an 22 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY 23 * KIND, either express or implied. See the License for the 24 * specific language governing permissions and limitations 25 * under the License. 26 */ 27 28 #ifndef BOOTUTIL_ENC_KEY_PUBLIC_H 29 #define BOOTUTIL_ENC_KEY_PUBLIC_H 30 #include <mcuboot_config/mcuboot_config.h> 31 #ifdef __cplusplus 32 extern "C" { 33 #endif 34 35 #ifndef ALIGN_UP 36 #define ALIGN_UP(num, align) (((num) + ((align) - 1)) & ~((align) - 1)) 37 #endif 38 39 #ifdef MCUBOOT_AES_256 40 #define BOOT_ENC_KEY_SIZE 32 41 #else 42 #define BOOT_ENC_KEY_SIZE 16 43 #endif 44 45 #define BOOT_ENC_KEY_ALIGN_SIZE ALIGN_UP(BOOT_ENC_KEY_SIZE, BOOT_MAX_ALIGN) 46 47 #define TLV_ENC_RSA_SZ 256 48 #define TLV_ENC_KW_SZ (BOOT_ENC_KEY_SIZE + 8) 49 #define TLV_ENC_EC256_SZ (65 + 32 + BOOT_ENC_KEY_SIZE) 50 #define TLV_ENC_X25519_SZ (32 + 32 + BOOT_ENC_KEY_SIZE) 51 52 #if defined(MCUBOOT_ENCRYPT_RSA) 53 #define BOOT_ENC_TLV_SIZE TLV_ENC_RSA_SZ 54 #elif defined(MCUBOOT_ENCRYPT_EC256) 55 #define BOOT_ENC_TLV_SIZE TLV_ENC_EC256_SZ 56 #elif defined(MCUBOOT_ENCRYPT_X25519) 57 #define BOOT_ENC_TLV_SIZE TLV_ENC_X25519_SZ 58 #else 59 #define BOOT_ENC_TLV_SIZE TLV_ENC_KW_SZ 60 #endif 61 62 #ifdef __cplusplus 63 } 64 #endif 65 66 #endif /* BOOTUTIL_ENC_KEY_PUBLIC_H */ 67
