mbedtls_entropy_config.h

00001 /*
00002  *  Copyright (C) 2006-2018, Arm Limited, All Rights Reserved
00003  *  SPDX-License-Identifier: Apache-2.0
00004  *
00005  *  Licensed under the Apache License, Version 2.0 (the "License"); you may
00006  *  not use this file except in compliance with the License.
00007  *  You may obtain a copy of the License at
00008  *
00009  *  http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  *  Unless required by applicable law or agreed to in writing, software
00012  *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
00013  *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  *  See the License for the specific language governing permissions and
00015  *  limitations under the License.
00016  *
00017  *  This file is part of Mbed TLS (https://tls.mbed.org)
00018  */
00019 
00020 #if !defined(MBEDTLS_ENTROPY_HARDWARE_ALT) && \
00021     !defined(MBEDTLS_ENTROPY_NV_SEED) && !defined(MBEDTLS_TEST_NULL_ENTROPY)
00022 #error "This hardware does not have an entropy source."
00023 #endif /* !MBEDTLS_ENTROPY_HARDWARE_ALT && !MBEDTLS_ENTROPY_NV_SEED &&
00024         * !MBEDTLS_TEST_NULL_ENTROPY */
00025 
00026 #if !defined(MBEDTLS_SHA1_C)
00027 #define MBEDTLS_SHA1_C
00028 #endif /* !MBEDTLS_SHA1_C */
00029 
00030 /*
00031  *  This value is sufficient for handling 2048 bit RSA keys.
00032  *
00033  *  Set this value higher to enable handling larger keys, but be aware that this
00034  *  will increase the stack usage.
00035  */
00036 #undef MBEDTLS_MPI_MAX_SIZE
00037 #define MBEDTLS_MPI_MAX_SIZE        256
00038 
00039 /* This macro determines whether Mbed TLS uses its own legacy crypto library
00040  * or an implementation of the PSA Crypto API such as Mbed Crypto.
00041  *
00042  * To confirm the use of PSA Crypto, you may enable debugging by setting
00043  * HELLO_HTTPS_CLIENT_DEBUG_LEVEL in HelloHttpsClient.h and look for
00044  * PSA-related debugging output on the serial line.
00045  *
00046  * Uncomment this to use the PSA Crypto API. */
00047 //#define MBEDTLS_USE_PSA_CRYPTO
00048 
00049 #define MBEDTLS_MPI_WINDOW_SIZE     1