1 /* 2 * Minimal configuration for TLS NSA Suite B Profile (RFC 6460) 3 * 4 * Copyright (C) 2006-2015, ARM Limited, All Rights Reserved 5 * SPDX-License-Identifier: Apache-2.0 6 * 7 * Licensed under the Apache License, Version 2.0 (the "License"); you may 8 * not use this file except in compliance with the License. 9 * You may obtain a copy of the License at 10 * 11 * http://www.apache.org/licenses/LICENSE-2.0 12 * 13 * Unless required by applicable law or agreed to in writing, software 14 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 15 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 16 * See the License for the specific language governing permissions and 17 * limitations under the License. 18 * 19 * This file is part of mbed TLS (https://tls.mbed.org) 20 */ 21 /* 22 * Minimal configuration for TLS NSA Suite B Profile (RFC 6460) 23 * 24 * Distinguishing features: 25 * - no RSA or classic DH, fully based on ECC 26 * - optimized for low RAM usage 27 * 28 * Possible improvements: 29 * - if 128-bit security is enough, disable secp384r1 and SHA-512 30 * - use embedded certs in DER format and disable PEM_PARSE_C and BASE64_C 31 * 32 * See README.txt for usage instructions. 33 */ 34 35 #ifndef MBEDTLS_CONFIG_H 36 #define MBEDTLS_CONFIG_H 37 38 /* System support */ 39 #define MBEDTLS_HAVE_ASM 40 #define MBEDTLS_HAVE_TIME 41 42 /* mbed TLS feature support */ 43 #define MBEDTLS_ECP_DP_SECP256R1_ENABLED 44 #define MBEDTLS_ECP_DP_SECP384R1_ENABLED 45 #define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED 46 #define MBEDTLS_SSL_PROTO_TLS1_2 47 48 /* mbed TLS modules */ 49 #define MBEDTLS_AES_C 50 #define MBEDTLS_ASN1_PARSE_C 51 #define MBEDTLS_ASN1_WRITE_C 52 #define MBEDTLS_BIGNUM_C 53 #define MBEDTLS_CIPHER_C 54 #define MBEDTLS_CTR_DRBG_C 55 #define MBEDTLS_ECDH_C 56 #define MBEDTLS_ECDSA_C 57 #define MBEDTLS_ECP_C 58 #define MBEDTLS_ENTROPY_C 59 #define MBEDTLS_GCM_C 60 #define MBEDTLS_MD_C 61 #define MBEDTLS_NET_C 62 #define MBEDTLS_OID_C 63 #define MBEDTLS_PK_C 64 #define MBEDTLS_PK_PARSE_C 65 #define MBEDTLS_SHA256_C 66 #define MBEDTLS_SHA512_C 67 #define MBEDTLS_SSL_CLI_C 68 #define MBEDTLS_SSL_SRV_C 69 #define MBEDTLS_SSL_TLS_C 70 #define MBEDTLS_X509_CRT_PARSE_C 71 #define MBEDTLS_X509_USE_C 72 73 /* For test certificates */ 74 #define MBEDTLS_BASE64_C 75 #define MBEDTLS_CERTS_C 76 #define MBEDTLS_PEM_PARSE_C 77 78 /* Save RAM at the expense of ROM */ 79 #define MBEDTLS_AES_ROM_TABLES 80 81 /* Save RAM by adjusting to our exact needs */ 82 #define MBEDTLS_ECP_MAX_BITS 384 83 #define MBEDTLS_MPI_MAX_SIZE 48 // 384 bits is 48 bytes 84 85 /* Save RAM at the expense of speed, see ecp.h */ 86 #define MBEDTLS_ECP_WINDOW_SIZE 2 87 #define MBEDTLS_ECP_FIXED_POINT_OPTIM 0 88 89 /* Significant speed benefit at the expense of some ROM */ 90 #define MBEDTLS_ECP_NIST_OPTIM 91 92 /* 93 * You should adjust this to the exact number of sources you're using: default 94 * is the "mbedtls_platform_entropy_poll" source, but you may want to add other ones. 95 * Minimum is 2 for the entropy test suite. 96 */ 97 #define MBEDTLS_ENTROPY_MAX_SOURCES 2 98 99 /* Save ROM and a few bytes of RAM by specifying our own ciphersuite list */ 100 #define MBEDTLS_SSL_CIPHERSUITES \ 101 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, \ 102 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 103 104 /* 105 * Save RAM at the expense of interoperability: do this only if you control 106 * both ends of the connection! (See coments in "mbedtls/ssl.h".) 107 * The minimum size here depends on the certificate chain used as well as the 108 * typical size of records. 109 */ 110 #define MBEDTLS_SSL_MAX_CONTENT_LEN 1024 111 112 #include "mbedtls/check_config.h" 113 114 #endif /* MBEDTLS_CONFIG_H */ 115
