1 /** 2 * \file config-suite-b.h 3 * 4 * \brief Minimal configuration for TLS NSA Suite B Profile (RFC 6460) 5 */ 6 /* 7 * Copyright The Mbed TLS Contributors 8 * SPDX-License-Identifier: Apache-2.0 9 * 10 * Licensed under the Apache License, Version 2.0 (the "License"); you may 11 * not use this file except in compliance with the License. 12 * You may obtain a copy of the License at 13 * 14 * http://www.apache.org/licenses/LICENSE-2.0 15 * 16 * Unless required by applicable law or agreed to in writing, software 17 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT 18 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 19 * See the License for the specific language governing permissions and 20 * limitations under the License. 21 */ 22 /* 23 * Minimal configuration for TLS NSA Suite B Profile (RFC 6460) 24 * 25 * Distinguishing features: 26 * - no RSA or classic DH, fully based on ECC 27 * - optimized for low RAM usage 28 * 29 * Possible improvements: 30 * - if 128-bit security is enough, disable secp384r1 and SHA-512 31 * - use embedded certs in DER format and disable PEM_PARSE_C and BASE64_C 32 * 33 * See README.txt for usage instructions. 34 */ 35 36 #ifndef MBEDTLS_CONFIG_H 37 #define MBEDTLS_CONFIG_H 38 39 /* System support */ 40 #define MBEDTLS_HAVE_ASM 41 #define MBEDTLS_HAVE_TIME 42 43 /* mbed TLS feature support */ 44 #define MBEDTLS_ECP_DP_SECP256R1_ENABLED 45 #define MBEDTLS_ECP_DP_SECP384R1_ENABLED 46 #define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED 47 #define MBEDTLS_SSL_PROTO_TLS1_2 48 49 /* mbed TLS modules */ 50 #define MBEDTLS_AES_C 51 #define MBEDTLS_ASN1_PARSE_C 52 #define MBEDTLS_ASN1_WRITE_C 53 #define MBEDTLS_BIGNUM_C 54 #define MBEDTLS_CIPHER_C 55 #define MBEDTLS_CTR_DRBG_C 56 #define MBEDTLS_ECDH_C 57 #define MBEDTLS_ECDSA_C 58 #define MBEDTLS_ECP_C 59 #define MBEDTLS_ENTROPY_C 60 #define MBEDTLS_GCM_C 61 #define MBEDTLS_MD_C 62 #define MBEDTLS_NET_C 63 #define MBEDTLS_OID_C 64 #define MBEDTLS_PK_C 65 #define MBEDTLS_PK_PARSE_C 66 #define MBEDTLS_SHA256_C 67 #define MBEDTLS_SHA512_C 68 #define MBEDTLS_SSL_CLI_C 69 #define MBEDTLS_SSL_SRV_C 70 #define MBEDTLS_SSL_TLS_C 71 #define MBEDTLS_X509_CRT_PARSE_C 72 #define MBEDTLS_X509_USE_C 73 74 /* For test certificates */ 75 #define MBEDTLS_BASE64_C 76 #define MBEDTLS_CERTS_C 77 #define MBEDTLS_PEM_PARSE_C 78 79 /* Save RAM at the expense of ROM */ 80 #define MBEDTLS_AES_ROM_TABLES 81 82 /* Save RAM by adjusting to our exact needs */ 83 #define MBEDTLS_ECP_MAX_BITS 384 84 #define MBEDTLS_MPI_MAX_SIZE 48 // 384 bits is 48 bytes 85 86 /* Save RAM at the expense of speed, see ecp.h */ 87 #define MBEDTLS_ECP_WINDOW_SIZE 2 88 #define MBEDTLS_ECP_FIXED_POINT_OPTIM 0 89 90 /* Significant speed benefit at the expense of some ROM */ 91 #define MBEDTLS_ECP_NIST_OPTIM 92 93 /* 94 * You should adjust this to the exact number of sources you're using: default 95 * is the "mbedtls_platform_entropy_poll" source, but you may want to add other ones. 96 * Minimum is 2 for the entropy test suite. 97 */ 98 #define MBEDTLS_ENTROPY_MAX_SOURCES 2 99 100 /* Save ROM and a few bytes of RAM by specifying our own ciphersuite list */ 101 #define MBEDTLS_SSL_CIPHERSUITES \ 102 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384, \ 103 MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 104 105 /* 106 * Save RAM at the expense of interoperability: do this only if you control 107 * both ends of the connection! (See coments in "mbedtls/ssl.h".) 108 * The minimum size here depends on the certificate chain used as well as the 109 * typical size of records. 110 */ 111 #define MBEDTLS_SSL_MAX_CONTENT_LEN 1024 112 113 #include "mbedtls/check_config.h" 114 115 #endif /* MBEDTLS_CONFIG_H */ 116
