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https://github.com/yuzu-emu/mbedtls.git
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ba8b1eb5d9
A positive option looks better, but comes with the following compatibility issue: people using a custom config.h that is not based on the default config.h and need TLS support would need to manually change their config in order to still get TLS. Work around that by making the public option negative. Internally the positive option is used, though. In the future (when preparing the next major version), we might want to switch back to a positive option as this would be more consistent with other options we have.
89 lines
2.8 KiB
C
89 lines
2.8 KiB
C
/**
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* \file config-ccm-psk-tls1_2.h
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*
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* \brief Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
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*/
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/*
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* Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* This file is part of mbed TLS (https://tls.mbed.org)
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*/
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/*
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* Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
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* Distinguishing features:
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* - no bignum, no PK, no X509
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* - fully modern and secure (provided the pre-shared keys have high entropy)
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* - very low record overhead with CCM-8
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* - optimized for low RAM usage
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*
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* See README.txt for usage instructions.
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*/
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#ifndef MBEDTLS_CONFIG_H
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#define MBEDTLS_CONFIG_H
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/* System support */
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//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
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/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
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/* mbed TLS feature support */
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#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
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#define MBEDTLS_SSL_PROTO_TLS1_2
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/* mbed TLS modules */
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#define MBEDTLS_AES_C
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#define MBEDTLS_CCM_C
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#define MBEDTLS_CIPHER_C
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#define MBEDTLS_CTR_DRBG_C
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#define MBEDTLS_ENTROPY_C
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#define MBEDTLS_MD_C
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#define MBEDTLS_NET_C
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#define MBEDTLS_SHA256_C
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#define MBEDTLS_SSL_CLI_C
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#define MBEDTLS_SSL_SRV_C
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#define MBEDTLS_SSL_TLS_C
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/* Save RAM at the expense of ROM */
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#define MBEDTLS_AES_ROM_TABLES
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/* Save some RAM by adjusting to your exact needs */
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#define MBEDTLS_PSK_MAX_LEN 16 /* 128-bits keys are generally enough */
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/*
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* You should adjust this to the exact number of sources you're using: default
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* is the "platform_entropy_poll" source, but you may want to add other ones
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* Minimum is 2 for the entropy test suite.
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*/
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#define MBEDTLS_ENTROPY_MAX_SOURCES 2
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/*
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* Use only CCM_8 ciphersuites, and
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* save ROM and a few bytes of RAM by specifying our own ciphersuite list
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*/
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#define MBEDTLS_SSL_CIPHERSUITES \
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MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8, \
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MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8
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/*
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* Save RAM at the expense of interoperability: do this only if you control
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* both ends of the connection! (See comments in "mbedtls/ssl.h".)
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* The optimal size here depends on the typical size of records.
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*/
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#define MBEDTLS_SSL_MAX_CONTENT_LEN 1024
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#include "mbedtls/check_config.h"
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#endif /* MBEDTLS_CONFIG_H */
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