|
| 1 | +/** |
| 2 | + * \file config-ccm-psk-tls1_2.h |
| 3 | + * |
| 4 | + * \brief Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites |
| 5 | + */ |
| 6 | +/* |
| 7 | + * Copyright The Mbed TLS Contributors |
| 8 | + * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later |
| 9 | + * |
| 10 | + * This file is provided under the Apache License 2.0, or the |
| 11 | + * GNU General Public License v2.0 or later. |
| 12 | + * |
| 13 | + * ********** |
| 14 | + * Apache License 2.0: |
| 15 | + * |
| 16 | + * Licensed under the Apache License, Version 2.0 (the "License"); you may |
| 17 | + * not use this file except in compliance with the License. |
| 18 | + * You may obtain a copy of the License at |
| 19 | + * |
| 20 | + * http://www.apache.org/licenses/LICENSE-2.0 |
| 21 | + * |
| 22 | + * Unless required by applicable law or agreed to in writing, software |
| 23 | + * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT |
| 24 | + * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 25 | + * See the License for the specific language governing permissions and |
| 26 | + * limitations under the License. |
| 27 | + * |
| 28 | + * ********** |
| 29 | + * |
| 30 | + * ********** |
| 31 | + * GNU General Public License v2.0 or later: |
| 32 | + * |
| 33 | + * This program is free software; you can redistribute it and/or modify |
| 34 | + * it under the terms of the GNU General Public License as published by |
| 35 | + * the Free Software Foundation; either version 2 of the License, or |
| 36 | + * (at your option) any later version. |
| 37 | + * |
| 38 | + * This program is distributed in the hope that it will be useful, |
| 39 | + * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 40 | + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 41 | + * GNU General Public License for more details. |
| 42 | + * |
| 43 | + * You should have received a copy of the GNU General Public License along |
| 44 | + * with this program; if not, write to the Free Software Foundation, Inc., |
| 45 | + * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. |
| 46 | + * |
| 47 | + * ********** |
| 48 | + */ |
| 49 | +/* |
| 50 | + * Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites |
| 51 | + * Distinguishing features: |
| 52 | + * - no bignum, no PK, no X509 |
| 53 | + * - fully modern and secure (provided the pre-shared keys have high entropy) |
| 54 | + * - very low record overhead with CCM-8 |
| 55 | + * - optimized for low RAM usage |
| 56 | + * |
| 57 | + * See README.txt for usage instructions. |
| 58 | + */ |
| 59 | +#ifndef MBEDTLS_CONFIG_H |
| 60 | +#define MBEDTLS_CONFIG_H |
| 61 | + |
| 62 | +/* System support */ |
| 63 | +//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */ |
| 64 | +/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */ |
| 65 | + |
| 66 | +/* mbed TLS feature support */ |
| 67 | +#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED |
| 68 | +#define MBEDTLS_SSL_PROTO_TLS1_2 |
| 69 | + |
| 70 | +/* mbed TLS modules */ |
| 71 | +#define MBEDTLS_AES_C |
| 72 | +#define MBEDTLS_CCM_C |
| 73 | +#define MBEDTLS_CIPHER_C |
| 74 | +#define MBEDTLS_CTR_DRBG_C |
| 75 | +#define MBEDTLS_ENTROPY_C |
| 76 | +#define MBEDTLS_MD_C |
| 77 | +#define MBEDTLS_NET_C |
| 78 | +#define MBEDTLS_SHA256_C |
| 79 | +#define MBEDTLS_SSL_CLI_C |
| 80 | +#define MBEDTLS_SSL_SRV_C |
| 81 | +#define MBEDTLS_SSL_TLS_C |
| 82 | + |
| 83 | +/* Save RAM at the expense of ROM */ |
| 84 | +#define MBEDTLS_AES_ROM_TABLES |
| 85 | + |
| 86 | +/* Save some RAM by adjusting to your exact needs */ |
| 87 | +#define MBEDTLS_PSK_MAX_LEN 16 /* 128-bits keys are generally enough */ |
| 88 | + |
| 89 | +/* |
| 90 | + * You should adjust this to the exact number of sources you're using: default |
| 91 | + * is the "platform_entropy_poll" source, but you may want to add other ones |
| 92 | + * Minimum is 2 for the entropy test suite. |
| 93 | + */ |
| 94 | +#define MBEDTLS_ENTROPY_MAX_SOURCES 2 |
| 95 | + |
| 96 | +/* |
| 97 | + * Use only CCM_8 ciphersuites, and |
| 98 | + * save ROM and a few bytes of RAM by specifying our own ciphersuite list |
| 99 | + */ |
| 100 | +#define MBEDTLS_SSL_CIPHERSUITES \ |
| 101 | + MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8, \ |
| 102 | + MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8 |
| 103 | + |
| 104 | +/* |
| 105 | + * Save RAM at the expense of interoperability: do this only if you control |
| 106 | + * both ends of the connection! (See comments in "mbedtls/ssl.h".) |
| 107 | + * The optimal size here depends on the typical size of records. |
| 108 | + */ |
| 109 | +#define MBEDTLS_SSL_MAX_CONTENT_LEN 1024 |
| 110 | + |
| 111 | +#include "mbedtls/check_config.h" |
| 112 | + |
| 113 | +#endif /* MBEDTLS_CONFIG_H */ |
0 commit comments