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[网络应用] mbedtls+gd32f470,tls握手失败,服务端SSL: error:1012606B:point is not on curve

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发表于 2025-1-2 10:02:02 | 显示全部楼层 |阅读模式
mbedtls版本是2.16.2

板子发送的数据,如下
[C] 纯文本查看 复制代码
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:3510: client state: 8
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:2755: => flush output
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:2767: <= flush output
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2898: => write client key exchange
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2978: value of 'ECDH: Q(X)' (383 bits) is:
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2978:  6d 1d 71 d0 8b 10 7b 19 55 3b fc 93 66 27 8a 00
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2978:  25 54 9b d7 b2 8e fd 1d 50 24 67 b6 53 c6 67 ee
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2978:  25 9e 2a 8c a2 e0 eb 60 1b f6 39 89 91 b5 60 60
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2978: value of 'ECDH: Q(Y)' (382 bits) is:
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2978:  28 3d 85 1c fd d9 43 b4 f4 46 6d 95 5d cc 71 87
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2978:  a3 dc e3 b2 3a bb f0 62 70 71 b6 7b 2b 32 ee 36
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:2978:  5b a9 a6 64 fe 8d ea fe fd 0c 18 75 9b bb fa ba
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:3006: value of 'ECDH: z' (384 bits) is:
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:3006:  9d a2 96 1e 03 31 5e fb 4e c1 de aa 4e 7a aa f6
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:3006:  dc 51 20 6f 39 6d ee 53 00 88 04 d1 d0 97 ba 36
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:3006:  4d e2 67 20 21 ee fd ce c2 b9 c4 40 c3 d6 49 84
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3184: => write handshake message
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3343: => write record
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3423: output record: msgtype = 22, version = [3:3], msglen = 102
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3426: dumping 'output record sent to network' (107 bytes)
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3426: 0000:  16 03 03 00 66 10 00 00 62 61 04 6d 1d 71 d0 8b  ....f...ba.m.q..
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3426: 0010:  10 7b 19 55 3b fc 93 66 27 8a 00 25 54 9b d7 b2  .{.U;..f'..%T...
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3426: 0020:  8e fd 1d 50 24 67 b6 53 c6 67 ee 25 9e 2a 8c a2  ...P$g.S.g.%.*..
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3426: 0030:  e0 eb 60 1b f6 39 89 91 b5 60 60 28 3d 85 1c fd  ..`..9...``(=...
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3426: 0040:  d9 43 b4 f4 46 6d 95 5d cc 71 87 a3 dc e3 b2 3a  .C..Fm.].q.....:
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3426: 0050:  bb f0 62 70 71 b6 7b 2b 32 ee 36 5b a9 a6 64 fe  ..bpq.{+2.6[..d.
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3426: 0060:  8d ea fe fd 0c 18 75 9b bb fa ba                 ......u....
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:2755: => flush output
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:2774: message length: 107, out_left: 107
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:2779: ssl->f_send() returned 107 (-0xffffff95)
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:2807: <= flush output
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3476: <= write record
.ssllog=== ../Middlewares/mbedTLS/library/ssl_tls.c:3320: <= write handshake message
.ssllog=== ../Middlewares/mbedTLS/library/ssl_cli.c:3172: <= write client key exchange


平台接收的数据如下:
[C] 纯文本查看 复制代码
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:4260: server state: 8
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2755: => flush output
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2767: <= flush output
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3716: => parse client key exchange
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4311: => read record
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2536: => fetch input
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2697: in_left: 0, nb_want: 5
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2721: in_left: 0, nb_want: 5
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2722: ssl->f_recv(_timeout)() returned 5 (-0xfffffffb)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2742: <= fetch input
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4047: dumping 'input record header' (5 bytes)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4047: 0000:  16 03 03 00 66                                   ....f
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4056: input record: msgtype = 22, version = [3:3], msglen = 102
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2536: => fetch input
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2697: in_left: 5, nb_want: 107
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2721: in_left: 5, nb_want: 107
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2722: ssl->f_recv(_timeout)() returned 102 (-0xffffff9a)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2742: <= fetch input
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: dumping 'input record from network' (107 bytes)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0000:  16 03 03 00 66 10 00 00 62 61 04 6d 1d 71 d0 8b  ....f...ba.m.q..
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0010:  10 7b 19 55 3b fc 93 66 27 8a 00 25 54 9b d7 b2  .{.U;..f'..%T...
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0020:  8e fd 1d 50 24 67 b6 53 c6 67 ee 25 9e 2a 8c a2  ...P$g.S.g.%.*..
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0030:  e0 eb 60 1b f6 39 89 91 b5 60 60 28 3d 85 1c fd  ..`..9...``(=...
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0040:  d9 43 b4 f4 46 6d 95 5d cc 71 87 a3 dc e3 b2 3a  .C..Fm.].q.....:
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0050:  bb f0 62 70 71 b6 7b 2b 32 ee 36 5b a9 a6 64 fe  ..bpq.{+2.6[..d.
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0060:  8d ea fe fd 0c 18 75 9b bb fa ba                 ......u....
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:3626: handshake message: msglen = 102, type = 16, hslen = 102
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4385: <= read record
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3799: value of 'ECDH: Qp(X)' (383 bits) is:
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3799:  6d 1d 71 d0 8b 10 7b 19 55 3b fc 93 66 27 8a 00
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3799:  25 54 9b d7 b2 8e fd 1d 50 24 67 b6 53 c6 67 ee
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3799:  25 9e 2a 8c a2 e0 eb 60 1b f6 39 89 91 b5 60 60
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3799: value of 'ECDH: Qp(Y)' (382 bits) is:
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3799:  28 3d 85 1c fd d9 43 b4 f4 46 6d 95 5d cc 71 87
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3799:  a3 dc e3 b2 3a bb f0 62 70 71 b6 7b 2b 32 ee 36
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3799:  5b a9 a6 64 fe 8d ea fe fd 0c 18 75 9b bb fa ba
.ciphersuite_info->key_exchange  3 4
ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:3807: mbedtls_ecdh_calc_secret() returned -19584 (-0x4c80)

椭圆曲线算法采用的SECP384R1.

在mbedtls_ecdh_calc_secret方法,服务端抛出异常。
请问这种情况是什么东西没有配置好么?


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发表于 2025-1-2 14:29:07 | 显示全部楼层

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帮顶。还没测试过这个。
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 楼主| 发表于 2025-1-2 14:55:58 | 显示全部楼层
现在异常位置变了,注释MBEDTLS_X509_RSASSA_PSS_SUPPORT和MBEDTLS_PKCS1_V21
启用了 MBEDTLS_MD5_C
[C] 纯文本查看 复制代码
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_srv.c:4260: server state: 11
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2755: => flush output
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2767: <= flush output
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6524: => parse finished
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6223: => calc  finished tls sha256
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6235: dumping 'finished sha2 state' (32 bytes)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6235: 0000:  4c 12 40 c6 85 44 bb 18 4d 39 82 ec fd f0 e6 cb  [email]L.@..D..M9[/email]......
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6235: 0010:  b0 7c 20 ec 38 57 1a 79 59 8f 2d 35 7b 05 91 5e  .| .8W.yY.-5{..^
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6247: dumping 'calc finished result' (12 bytes)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6247: 0000:  3f 4a a5 1f 67 1b 8b c0 d9 69 88 5c              ?J..g....i.\
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6253: <= calc  finished
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4311: => read record
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2536: => fetch input
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2697: in_left: 0, nb_want: 5
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2721: in_left: 0, nb_want: 5
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2722: ssl->f_recv(_timeout)() returned 5 (-0xfffffffb)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2742: <= fetch input
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4047: dumping 'input record header' (5 bytes)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4047: 0000:  16 03 03 00 50                                   ....P
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4056: input record: msgtype = 22, version = [3:3], msglen = 80
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2536: => fetch input
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2697: in_left: 5, nb_want: 85
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2721: in_left: 5, nb_want: 85
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2722: ssl->f_recv(_timeout)() returned 80 (-0xffffffb0)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2742: <= fetch input
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: dumping 'input record from network' (85 bytes)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0000:  16 03 03 00 50 05 a5 c2 bf 2f 0a 5e 3a e7 f5 17  ....P..../.^:...
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0010:  06 e3 07 d0 21 44 48 1e 71 37 6e c0 96 6e f6 82  ....!DH.q7n..n..
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0020:  89 2d ca 9d ad 2c 82 34 dc 0a d6 7f 48 a3 88 27  .-...,.4....H..'
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0030:  ed e4 2f 54 ec 84 d7 08 15 66 8c f4 88 95 04 93  ../T.....f......
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0040:  20 32 c5 f2 d5 4a 4a 7a fa 91 b1 af 66 16 a7 72   2...JJz....f..r
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4233: 0050:  75 44 8e ac 65                                   uD..e
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:1794: => decrypt buf
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4255: ssl_decrypt_buf() returned -29056 (-0x7180)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:5250: => send alert message
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:5251: send alert level=2 message=20
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:3343: => write record
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:3423: output record: msgtype = 21, version = [3:3], msglen = 2
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:3426: dumping 'output record sent to network' (7 bytes)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:3426: 0000:  15 03 03 00 02 02 14                             .......
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2755: => flush output
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2774: message length: 7, out_left: 7
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2779: ssl->f_send() returned 7 (-0xfffffff9)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:2807: <= flush output
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:3476: <= write record
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:5263: <= send alert message
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:4344: ssl_get_next_record() returned -29056 (-0x7180)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:6530: mbedtls_ssl_read_record() returned -29056 (-0x7180)
.ssllog=== D:\TLS\mbedtls-mbedtls-2.16.2\library\ssl_tls.c:8094: <= handshake
.platformlog===  failed
  ! mbedtls_ssl_handshake returned -29056

应该还是配置没有对,导致tls握手出现故障
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 楼主| 发表于 2025-1-2 15:44:12 | 显示全部楼层
/**
* \file config.h
*
* \brief Configuration options (set of defines)
*
*  This set of compile-time options may be used to enable
*  or disable features selectively, and reduce the global
*  memory footprint.
*/
/*
*  Copyright (C) 2006-2018, ARM Limited, All Rights Reserved
*  SPDX-License-Identifier: Apache-2.0
*
*  Licensed under the Apache License, Version 2.0 (the "License"); you may
*  not use this file except in compliance with the License.
*  You may obtain a copy of the License at
*
*  http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
*  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*
*  This file is part of mbed TLS (https://tls.mbed.org)
*/

#ifndef MBEDTLS_CONFIG_H
#define MBEDTLS_CONFIG_H

#if defined(_MSC_VER) && !defined(_CRT_SECURE_NO_DEPRECATE)
#define _CRT_SECURE_NO_DEPRECATE 1
#endif

/**
* \name SECTION: System support
*
* This section sets system specific settings.
* \{
*/

/**
* \def MBEDTLS_HAVE_ASM
*
* The compiler has support for asm().
*
* Requires support for asm() in compiler.
*
* Used in:
*      library/aria.c
*      library/timing.c
*      include/mbedtls/bn_mul.h
*
* Required by:
*      MBEDTLS_AESNI_C
*      MBEDTLS_PADLOCK_C
*
* Comment to disable the use of assembly code.
*/
#define MBEDTLS_HAVE_ASM

/**
* \def MBEDTLS_NO_UDBL_DIVISION
*
* The platform lacks support for double-width integer division (64-bit
* division on a 32-bit platform, 128-bit division on a 64-bit platform).
*
* Used in:
*      include/mbedtls/bignum.h
*      library/bignum.c
*
* The bignum code uses double-width division to speed up some operations.
* Double-width division is often implemented in software that needs to
* be linked with the program. The presence of a double-width integer
* type is usually detected automatically through preprocessor macros,
* but the automatic detection cannot know whether the code needs to
* and can be linked with an implementation of division for that type.
* By default division is assumed to be usable if the type is present.
* Uncomment this option to prevent the use of double-width division.
*
* Note that division for the native integer type is always required.
* Furthermore, a 64-bit type is always required even on a 32-bit
* platform, but it need not support multiplication or division. In some
* cases it is also desirable to disable some double-width operations. For
* example, if double-width division is implemented in software, disabling
* it can reduce code size in some embedded targets.
*/
//#define MBEDTLS_NO_UDBL_DIVISION

/**
* \def MBEDTLS_NO_64BIT_MULTIPLICATION
*
* The platform lacks support for 32x32 -> 64-bit multiplication.
*
* Used in:
*      library/poly1305.c
*
* Some parts of the library may use multiplication of two unsigned 32-bit
* operands with a 64-bit result in order to speed up computations. On some
* platforms, this is not available in hardware and has to be implemented in
* software, usually in a library provided by the toolchain.
*
* Sometimes it is not desirable to have to link to that library. This option
* removes the dependency of that library on platforms that lack a hardware
* 64-bit multiplier by embedding a software implementation in Mbed TLS.
*
* Note that depending on the compiler, this may decrease performance compared
* to using the library function provided by the toolchain.
*/
//#define MBEDTLS_NO_64BIT_MULTIPLICATION

/**
* \def MBEDTLS_HAVE_SSE2
*
* CPU supports SSE2 instruction set.
*
* Uncomment if the CPU supports SSE2 (IA-32 specific).
*/
//#define MBEDTLS_HAVE_SSE2

/**
* \def MBEDTLS_HAVE_TIME
*
* System has time.h and time().
* The time does not need to be correct, only time differences are used,
* by contrast with MBEDTLS_HAVE_TIME_DATE
*
* Defining MBEDTLS_HAVE_TIME allows you to specify MBEDTLS_PLATFORM_TIME_ALT,
* MBEDTLS_PLATFORM_TIME_MACRO, MBEDTLS_PLATFORM_TIME_TYPE_MACRO and
* MBEDTLS_PLATFORM_STD_TIME.
*
* Comment if your system does not support time functions
*/
//#define MBEDTLS_HAVE_TIME

/**
* \def MBEDTLS_HAVE_TIME_DATE
*
* System has time.h, time(), and an implementation for
* mbedtls_platform_gmtime_r() (see below).
* The time needs to be correct (not necesarily very accurate, but at least
* the date should be correct). This is used to verify the validity period of
* X.509 certificates.
*
* Comment if your system does not have a correct clock.
*
* \note mbedtls_platform_gmtime_r() is an abstraction in platform_util.h that
* behaves similarly to the gmtime_r() function from the C standard. Refer to
* the documentation for mbedtls_platform_gmtime_r() for more information.
*
* \note It is possible to configure an implementation for
* mbedtls_platform_gmtime_r() at compile-time by using the macro
* MBEDTLS_PLATFORM_GMTIME_R_ALT.
*/
//#define MBEDTLS_HAVE_TIME_DATE

/**
* \def MBEDTLS_PLATFORM_MEMORY
*
* Enable the memory allocation layer.
*
* By default mbed TLS uses the system-provided calloc() and free().
* This allows different allocators (self-implemented or provided) to be
* provided to the platform abstraction layer.
*
* Enabling MBEDTLS_PLATFORM_MEMORY without the
* MBEDTLS_PLATFORM_{FREE,CALLOC}_MACROs will provide
* "mbedtls_platform_set_calloc_free()" allowing you to set an alternative calloc() and
* free() function pointer at runtime.
*
* Enabling MBEDTLS_PLATFORM_MEMORY and specifying
* MBEDTLS_PLATFORM_{CALLOC,FREE}_MACROs will allow you to specify the
* alternate function at compile time.
*
* Requires: MBEDTLS_PLATFORM_C
*
* Enable this layer to allow use of alternative memory allocators.
*/
#define MBEDTLS_PLATFORM_MEMORY

/**
* \def MBEDTLS_PLATFORM_NO_STD_FUNCTIONS
*
* Do not assign standard functions in the platform layer (e.g. calloc() to
* MBEDTLS_PLATFORM_STD_CALLOC and printf() to MBEDTLS_PLATFORM_STD_PRINTF)
*
* This makes sure there are no linking errors on platforms that do not support
* these functions. You will HAVE to provide alternatives, either at runtime
* via the platform_set_xxx() functions or at compile time by setting
* the MBEDTLS_PLATFORM_STD_XXX defines, or enabling a
* MBEDTLS_PLATFORM_XXX_MACRO.
*
* Requires: MBEDTLS_PLATFORM_C
*
* Uncomment to prevent default assignment of standard functions in the
* platform layer.
*/
//#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS

/**
* \def MBEDTLS_PLATFORM_EXIT_ALT
*
* MBEDTLS_PLATFORM_XXX_ALT: Uncomment a macro to let mbed TLS support the
* function in the platform abstraction layer.
*
* Example: In case you uncomment MBEDTLS_PLATFORM_PRINTF_ALT, mbed TLS will
* provide a function "mbedtls_platform_set_printf()" that allows you to set an
* alternative printf function pointer.
*
* All these define require MBEDTLS_PLATFORM_C to be defined!
*
* \note MBEDTLS_PLATFORM_SNPRINTF_ALT is required on Windows;
* it will be enabled automatically by check_config.h
*
* \warning MBEDTLS_PLATFORM_XXX_ALT cannot be defined at the same time as
* MBEDTLS_PLATFORM_XXX_MACRO!
*
* Requires: MBEDTLS_PLATFORM_TIME_ALT requires MBEDTLS_HAVE_TIME
*
* Uncomment a macro to enable alternate implementation of specific base
* platform function
*/
//#define MBEDTLS_PLATFORM_EXIT_ALT
//#define MBEDTLS_PLATFORM_TIME_ALT
//#define MBEDTLS_PLATFORM_FPRINTF_ALT
#define MBEDTLS_PLATFORM_PRINTF_ALT
//#define MBEDTLS_PLATFORM_SNPRINTF_ALT
//#define MBEDTLS_PLATFORM_NV_SEED_ALT
//#define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT

/**
* \def MBEDTLS_DEPRECATED_WARNING
*
* Mark deprecated functions so that they generate a warning if used.
* Functions deprecated in one version will usually be removed in the next
* version. You can enable this to help you prepare the transition to a new
* major version by making sure your code is not using these functions.
*
* This only works with GCC and Clang. With other compilers, you may want to
* use MBEDTLS_DEPRECATED_REMOVED
*
* Uncomment to get warnings on using deprecated functions.
*/
//#define MBEDTLS_DEPRECATED_WARNING

/**
* \def MBEDTLS_DEPRECATED_REMOVED
*
* Remove deprecated functions so that they generate an error if used.
* Functions deprecated in one version will usually be removed in the next
* version. You can enable this to help you prepare the transition to a new
* major version by making sure your code is not using these functions.
*
* Uncomment to get errors on using deprecated functions.
*/
//#define MBEDTLS_DEPRECATED_REMOVED

/**
* \def MBEDTLS_CHECK_PARAMS
*
* This configuration option controls whether the library validates more of
* the parameters passed to it.
*
* When this flag is not defined, the library only attempts to validate an
* input parameter if: (1) they may come from the outside world (such as the
* network, the filesystem, etc.) or (2) not validating them could result in
* internal memory errors such as overflowing a buffer controlled by the
* library. On the other hand, it doesn't attempt to validate parameters whose
* values are fully controlled by the application (such as pointers).
*
* When this flag is defined, the library additionally attempts to validate
* parameters that are fully controlled by the application, and should always
* be valid if the application code is fully correct and trusted.
*
* For example, when a function accepts as input a pointer to a buffer that may
* contain untrusted data, and its documentation mentions that this pointer
* must not be NULL:
* - the pointer is checked to be non-NULL only if this option is enabled
* - the content of the buffer is always validated
*
* When this flag is defined, if a library function receives a parameter that
* is invalid, it will:
* - invoke the macro MBEDTLS_PARAM_FAILED() which by default expands to a
*   call to the function mbedtls_param_failed()
* - immediately return (with a specific error code unless the function
*   returns void and can't communicate an error).
*
* When defining this flag, you also need to:
* - either provide a definition of the function mbedtls_param_failed() in
*   your application (see platform_util.h for its prototype) as the library
*   calls that function, but does not provide a default definition for it,
* - or provide a different definition of the macro MBEDTLS_PARAM_FAILED()
*   below if the above mechanism is not flexible enough to suit your needs.
*   See the documentation of this macro later in this file.
*
* Uncomment to enable validation of application-controlled parameters.
*/
//#define MBEDTLS_CHECK_PARAMS

/* \} name SECTION: System support */

/**
* \name SECTION: mbed TLS feature support
*
* This section sets support for features that are or are not needed
* within the modules that are enabled.
* \{
*/

/**
* \def MBEDTLS_TIMING_ALT
*
* Uncomment to provide your own alternate implementation for mbedtls_timing_hardclock(),
* mbedtls_timing_get_timer(), mbedtls_set_alarm(), mbedtls_set/get_delay()
*
* Only works if you have MBEDTLS_TIMING_C enabled.
*
* You will need to provide a header "timing_alt.h" and an implementation at
* compile time.
*/
//#define MBEDTLS_TIMING_ALT

/**
* \def MBEDTLS_AES_ALT
*
* MBEDTLS__MODULE_NAME__ALT: Uncomment a macro to let mbed TLS use your
* alternate core implementation of a symmetric crypto, an arithmetic or hash
* module (e.g. platform specific assembly optimized implementations). Keep
* in mind that the function prototypes should remain the same.
*
* This replaces the whole module. If you only want to replace one of the
* functions, use one of the MBEDTLS__FUNCTION_NAME__ALT flags.
*
* Example: In case you uncomment MBEDTLS_AES_ALT, mbed TLS will no longer
* provide the "struct mbedtls_aes_context" definition and omit the base
* function declarations and implementations. "aes_alt.h" will be included from
* "aes.h" to include the new function definitions.
*
* Uncomment a macro to enable alternate implementation of the corresponding
* module.
*
* \warning   MD2, MD4, MD5, ARC4, DES and SHA-1 are considered weak and their
*            use constitutes a security risk. If possible, we recommend
*            avoiding dependencies on them, and considering stronger message
*            digests and ciphers instead.
*
*/
//#define MBEDTLS_AES_ALT
//#define MBEDTLS_ARC4_ALT
//#define MBEDTLS_ARIA_ALT
//#define MBEDTLS_BLOWFISH_ALT
//#define MBEDTLS_CAMELLIA_ALT
//#define MBEDTLS_CCM_ALT
//#define MBEDTLS_CHACHA20_ALT
//#define MBEDTLS_CHACHAPOLY_ALT
//#define MBEDTLS_CMAC_ALT
//#define MBEDTLS_DES_ALT
//#define MBEDTLS_DHM_ALT
//#define MBEDTLS_ECJPAKE_ALT
//#define MBEDTLS_GCM_ALT
//#define MBEDTLS_NIST_KW_ALT
//#define MBEDTLS_MD2_ALT
//#define MBEDTLS_MD4_ALT
//#define MBEDTLS_MD5_ALT
//#define MBEDTLS_POLY1305_ALT
//#define MBEDTLS_RIPEMD160_ALT
//#define MBEDTLS_RSA_ALT
//#define MBEDTLS_SHA1_ALT
//#define MBEDTLS_SHA256_ALT
//#define MBEDTLS_SHA512_ALT
//#define MBEDTLS_XTEA_ALT

/*
* When replacing the elliptic curve module, pleace consider, that it is
* implemented with two .c files:
*      - ecp.c
*      - ecp_curves.c
* You can replace them very much like all the other MBEDTLS__MODULE_NAME__ALT
* macros as described above. The only difference is that you have to make sure
* that you provide functionality for both .c files.
*/
//#define MBEDTLS_ECP_ALT

/**
* \def MBEDTLS_MD2_PROCESS_ALT
*
* MBEDTLS__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use you
* alternate core implementation of symmetric crypto or hash function. Keep in
* mind that function prototypes should remain the same.
*
* This replaces only one function. The header file from mbed TLS is still
* used, in contrast to the MBEDTLS__MODULE_NAME__ALT flags.
*
* Example: In case you uncomment MBEDTLS_SHA256_PROCESS_ALT, mbed TLS will
* no longer provide the mbedtls_sha1_process() function, but it will still provide
* the other function (using your mbedtls_sha1_process() function) and the definition
* of mbedtls_sha1_context, so your implementation of mbedtls_sha1_process must be compatible
* with this definition.
*
* \note Because of a signature change, the core AES encryption and decryption routines are
*       currently named mbedtls_aes_internal_encrypt and mbedtls_aes_internal_decrypt,
*       respectively. When setting up alternative implementations, these functions should
*       be overriden, but the wrapper functions mbedtls_aes_decrypt and mbedtls_aes_encrypt
*       must stay untouched.
*
* \note If you use the AES_xxx_ALT macros, then is is recommended to also set
*       MBEDTLS_AES_ROM_TABLES in order to help the linker garbage-collect the AES
*       tables.
*
* Uncomment a macro to enable alternate implementation of the corresponding
* function.
*
* \warning   MD2, MD4, MD5, DES and SHA-1 are considered weak and their use
*            constitutes a security risk. If possible, we recommend avoiding
*            dependencies on them, and considering stronger message digests
*            and ciphers instead.
*
*/
//#define MBEDTLS_MD2_PROCESS_ALT
//#define MBEDTLS_MD4_PROCESS_ALT
//#define MBEDTLS_MD5_PROCESS_ALT
//#define MBEDTLS_RIPEMD160_PROCESS_ALT
//#define MBEDTLS_SHA1_PROCESS_ALT
//#define MBEDTLS_SHA256_PROCESS_ALT
//#define MBEDTLS_SHA512_PROCESS_ALT
//#define MBEDTLS_DES_SETKEY_ALT
//#define MBEDTLS_DES_CRYPT_ECB_ALT
//#define MBEDTLS_DES3_CRYPT_ECB_ALT
//#define MBEDTLS_AES_SETKEY_ENC_ALT
//#define MBEDTLS_AES_SETKEY_DEC_ALT
//#define MBEDTLS_AES_ENCRYPT_ALT
//#define MBEDTLS_AES_DECRYPT_ALT
//#define MBEDTLS_ECDH_GEN_PUBLIC_ALT
//#define MBEDTLS_ECDH_COMPUTE_SHARED_ALT
//#define MBEDTLS_ECDSA_VERIFY_ALT
//#define MBEDTLS_ECDSA_SIGN_ALT
//#define MBEDTLS_ECDSA_GENKEY_ALT

/**
* \def MBEDTLS_ECP_INTERNAL_ALT
*
* Expose a part of the internal interface of the Elliptic Curve Point module.
*
* MBEDTLS_ECP__FUNCTION_NAME__ALT: Uncomment a macro to let mbed TLS use your
* alternative core implementation of elliptic curve arithmetic. Keep in mind
* that function prototypes should remain the same.
*
* This partially replaces one function. The header file from mbed TLS is still
* used, in contrast to the MBEDTLS_ECP_ALT flag. The original implementation
* is still present and it is used for group structures not supported by the
* alternative.
*
* Any of these options become available by defining MBEDTLS_ECP_INTERNAL_ALT
* and implementing the following functions:
*      unsigned char mbedtls_internal_ecp_grp_capable(
*          const mbedtls_ecp_group *grp )
*      int  mbedtls_internal_ecp_init( const mbedtls_ecp_group *grp )
*      void mbedtls_internal_ecp_free( const mbedtls_ecp_group *grp )
* The mbedtls_internal_ecp_grp_capable function should return 1 if the
* replacement functions implement arithmetic for the given group and 0
* otherwise.
* The functions mbedtls_internal_ecp_init and mbedtls_internal_ecp_free are
* called before and after each point operation and provide an opportunity to
* implement optimized set up and tear down instructions.
*
* Example: In case you uncomment MBEDTLS_ECP_INTERNAL_ALT and
* MBEDTLS_ECP_DOUBLE_JAC_ALT, mbed TLS will still provide the ecp_double_jac
* function, but will use your mbedtls_internal_ecp_double_jac if the group is
* supported (your mbedtls_internal_ecp_grp_capable function returns 1 when
* receives it as an argument). If the group is not supported then the original
* implementation is used. The other functions and the definition of
* mbedtls_ecp_group and mbedtls_ecp_point will not change, so your
* implementation of mbedtls_internal_ecp_double_jac and
* mbedtls_internal_ecp_grp_capable must be compatible with this definition.
*
* Uncomment a macro to enable alternate implementation of the corresponding
* function.
*/
/* Required for all the functions in this section */
//#define MBEDTLS_ECP_INTERNAL_ALT
/* Support for Weierstrass curves with Jacobi representation */
//#define MBEDTLS_ECP_RANDOMIZE_JAC_ALT
//#define MBEDTLS_ECP_ADD_MIXED_ALT
//#define MBEDTLS_ECP_DOUBLE_JAC_ALT
//#define MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT
//#define MBEDTLS_ECP_NORMALIZE_JAC_ALT
/* Support for curves with Montgomery arithmetic */
//#define MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT
//#define MBEDTLS_ECP_RANDOMIZE_MXZ_ALT
//#define MBEDTLS_ECP_NORMALIZE_MXZ_ALT

/**
* \def MBEDTLS_TEST_NULL_ENTROPY
*
* Enables testing and use of mbed TLS without any configured entropy sources.
* This permits use of the library on platforms before an entropy source has
* been integrated (see for example the MBEDTLS_ENTROPY_HARDWARE_ALT or the
* MBEDTLS_ENTROPY_NV_SEED switches).
*
* WARNING! This switch MUST be disabled in production builds, and is suitable
* only for development.
* Enabling the switch negates any security provided by the library.
*
* Requires MBEDTLS_ENTROPY_C, MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
*
*/
//#define MBEDTLS_TEST_NULL_ENTROPY

/**
* \def MBEDTLS_ENTROPY_HARDWARE_ALT
*
* Uncomment this macro to let mbed TLS use your own implementation of a
* hardware entropy collector.
*
* Your function must be called \c mbedtls_hardware_poll(), have the same
* prototype as declared in entropy_poll.h, and accept NULL as first argument.
*
* Uncomment to use your own hardware entropy collector.
*/
#define MBEDTLS_ENTROPY_HARDWARE_ALT

/**
* \def MBEDTLS_AES_ROM_TABLES
*
* Use precomputed AES tables stored in ROM.
*
* Uncomment this macro to use precomputed AES tables stored in ROM.
* Comment this macro to generate AES tables in RAM at runtime.
*
* Tradeoff: Using precomputed ROM tables reduces RAM usage by ~8kb
* (or ~2kb if \c MBEDTLS_AES_FEWER_TABLES is used) and reduces the
* initialization time before the first AES operation can be performed.
* It comes at the cost of additional ~8kb ROM use (resp. ~2kb if \c
* MBEDTLS_AES_FEWER_TABLES below is used), and potentially degraded
* performance if ROM access is slower than RAM access.
*
* This option is independent of \c MBEDTLS_AES_FEWER_TABLES.
*
*/
#define MBEDTLS_AES_ROM_TABLES

/**
* \def MBEDTLS_AES_FEWER_TABLES
*
* Use less ROM/RAM for AES tables.
*
* Uncommenting this macro omits 75% of the AES tables from
* ROM / RAM (depending on the value of \c MBEDTLS_AES_ROM_TABLES)
* by computing their values on the fly during operations
* (the tables are entry-wise rotations of one another).
*
* Tradeoff: Uncommenting this reduces the RAM / ROM footprint
* by ~6kb but at the cost of more arithmetic operations during
* runtime. Specifically, one has to compare 4 accesses within
* different tables to 4 accesses with additional arithmetic
* operations within the same table. The performance gain/loss
* depends on the system and memory details.
*
* This option is independent of \c MBEDTLS_AES_ROM_TABLES.
*
*/
//#define MBEDTLS_AES_FEWER_TABLES

/**
* \def MBEDTLS_CAMELLIA_SMALL_MEMORY
*
* Use less ROM for the Camellia implementation (saves about 768 bytes).
*
* Uncomment this macro to use less memory for Camellia.
*/
//#define MBEDTLS_CAMELLIA_SMALL_MEMORY

/**
* \def MBEDTLS_CIPHER_MODE_CBC
*
* Enable Cipher Block Chaining mode (CBC) for symmetric ciphers.
*/
#define MBEDTLS_CIPHER_MODE_CBC

/**
* \def MBEDTLS_CIPHER_MODE_CFB
*
* Enable Cipher Feedback mode (CFB) for symmetric ciphers.
*/
#define MBEDTLS_CIPHER_MODE_CFB

/**
* \def MBEDTLS_CIPHER_MODE_CTR
*
* Enable Counter Block Cipher mode (CTR) for symmetric ciphers.
*/
#define MBEDTLS_CIPHER_MODE_CTR

/**
* \def MBEDTLS_CIPHER_MODE_OFB
*
* Enable Output Feedback mode (OFB) for symmetric ciphers.
*/
#define MBEDTLS_CIPHER_MODE_OFB

/**
* \def MBEDTLS_CIPHER_MODE_XTS
*
* Enable Xor-encrypt-xor with ciphertext stealing mode (XTS) for AES.
*/
#define MBEDTLS_CIPHER_MODE_XTS

/**
* \def MBEDTLS_CIPHER_NULL_CIPHER
*
* Enable NULL cipher.
* Warning: Only do so when you know what you are doing. This allows for
* encryption or channels without any security!
*
* Requires MBEDTLS_ENABLE_WEAK_CIPHERSUITES as well to enable
* the following ciphersuites:
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_NULL_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_NULL_SHA
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_NULL_SHA
*      MBEDTLS_TLS_ECDHE_RSA_WITH_NULL_SHA
*      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA384
*      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA256
*      MBEDTLS_TLS_ECDHE_PSK_WITH_NULL_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_NULL_SHA
*      MBEDTLS_TLS_RSA_WITH_NULL_SHA256
*      MBEDTLS_TLS_RSA_WITH_NULL_SHA
*      MBEDTLS_TLS_RSA_WITH_NULL_MD5
*      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_NULL_SHA
*      MBEDTLS_TLS_PSK_WITH_NULL_SHA384
*      MBEDTLS_TLS_PSK_WITH_NULL_SHA256
*      MBEDTLS_TLS_PSK_WITH_NULL_SHA
*
* Uncomment this macro to enable the NULL cipher and ciphersuites
*/
//#define MBEDTLS_CIPHER_NULL_CIPHER

/**
* \def MBEDTLS_CIPHER_PADDING_PKCS7
*
* MBEDTLS_CIPHER_PADDING_XXX: Uncomment or comment macros to add support for
* specific padding modes in the cipher layer with cipher modes that support
* padding (e.g. CBC)
*
* If you disable all padding modes, only full blocks can be used with CBC.
*
* Enable padding modes in the cipher layer.
*/
// #define MBEDTLS_CIPHER_PADDING_PKCS7
// #define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS
// #define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN
// #define MBEDTLS_CIPHER_PADDING_ZEROS

/**
* \def MBEDTLS_ENABLE_WEAK_CIPHERSUITES
*
* Enable weak ciphersuites in SSL / TLS.
* Warning: Only do so when you know what you are doing. This allows for
* channels with virtually no security at all!
*
* This enables the following ciphersuites:
*      MBEDTLS_TLS_RSA_WITH_DES_CBC_SHA
*      MBEDTLS_TLS_DHE_RSA_WITH_DES_CBC_SHA
*
* Uncomment this macro to enable weak ciphersuites
*
* \warning   DES is considered a weak cipher and its use constitutes a
*            security risk. We recommend considering stronger ciphers instead.
*/
//#define MBEDTLS_ENABLE_WEAK_CIPHERSUITES

/**
* \def MBEDTLS_REMOVE_ARC4_CIPHERSUITES
*
* Remove RC4 ciphersuites by default in SSL / TLS.
* This flag removes the ciphersuites based on RC4 from the default list as
* returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible to
* enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including them
* explicitly.
*
* Uncomment this macro to remove RC4 ciphersuites by default.
*/
// #define MBEDTLS_REMOVE_ARC4_CIPHERSUITES

/**
* \def MBEDTLS_REMOVE_3DES_CIPHERSUITES
*
* Remove 3DES ciphersuites by default in SSL / TLS.
* This flag removes the ciphersuites based on 3DES from the default list as
* returned by mbedtls_ssl_list_ciphersuites(). However, it is still possible
* to enable (some of) them with mbedtls_ssl_conf_ciphersuites() by including
* them explicitly.
*
* A man-in-the-browser attacker can recover authentication tokens sent through
* a TLS connection using a 3DES based cipher suite (see "On the Practical
* (In-)Security of 64-bit Block Ciphers" by Karthikeyan Bhargavan and Ga&#235;tan
* Leurent, see https://sweet32.info/SWEET32_CCS16.pdf). If this attack falls
* in your threat model or you are unsure, then you should keep this option
* enabled to remove 3DES based cipher suites.
*
* Comment this macro to keep 3DES in the default ciphersuite list.
*/
#define MBEDTLS_REMOVE_3DES_CIPHERSUITES

/**
* \def MBEDTLS_ECP_DP_SECP192R1_ENABLED
*
* MBEDTLS_ECP_XXXX_ENABLED: Enables specific curves within the Elliptic Curve
* module.  By default all supported curves are enabled.
*
* Comment macros to disable the curve and functions for it
*/
// #define MBEDTLS_ECP_DP_SECP192R1_ENABLED
// #define MBEDTLS_ECP_DP_SECP224R1_ENABLED
#define MBEDTLS_ECP_DP_SECP256R1_ENABLED    //启用椭圆曲线内的SECP256R1曲线
#define MBEDTLS_ECP_DP_SECP384R1_ENABLED
// #define MBEDTLS_ECP_DP_SECP521R1_ENABLED
// #define MBEDTLS_ECP_DP_SECP192K1_ENABLED
// #define MBEDTLS_ECP_DP_SECP224K1_ENABLED
#define MBEDTLS_ECP_DP_SECP256K1_ENABLED    //启用椭圆曲线内的SECP256K1曲线
// #define MBEDTLS_ECP_DP_BP256R1_ENABLED
// #define MBEDTLS_ECP_DP_BP384R1_ENABLED
// #define MBEDTLS_ECP_DP_BP512R1_ENABLED
// #define MBEDTLS_ECP_DP_CURVE25519_ENABLED
//#define MBEDTLS_ECP_DP_CURVE448_ENABLED

//NIST曲线优化
/**
* \def MBEDTLS_ECP_NIST_OPTIM
*
* Enable specific 'modulo p' routines for each NIST prime.
* Depending on the prime and architecture, makes operations 4 to 8 times
* faster on the corresponding curve.
*
* Comment this macro to disable NIST curves optimisation.
*/
#define MBEDTLS_ECP_NIST_OPTIM

/**
* \def MBEDTLS_ECP_RESTARTABLE
*
* Enable "non-blocking" ECC operations that can return early and be resumed.
*
* This allows various functions to pause by returning
* #MBEDTLS_ERR_ECP_IN_PROGRESS (or, for functions in the SSL module,
* #MBEDTLS_ERR_SSL_CRYPTO_IN_PROGRESS) and then be called later again in
* order to further progress and eventually complete their operation. This is
* controlled through mbedtls_ecp_set_max_ops() which limits the maximum
* number of ECC operations a function may perform before pausing; see
* mbedtls_ecp_set_max_ops() for more information.
*
* This is useful in non-threaded environments if you want to avoid blocking
* for too long on ECC (and, hence, X.509 or SSL/TLS) operations.
*
* Uncomment this macro to enable restartable ECC computations.
*
* \note  This option only works with the default software implementation of
*        elliptic curve functionality. It is incompatible with
*        MBEDTLS_ECP_ALT, MBEDTLS_ECDH_XXX_ALT and MBEDTLS_ECDSA_XXX_ALT.
*/
//#define MBEDTLS_ECP_RESTARTABLE

/**
* \def MBEDTLS_ECDSA_DETERMINISTIC
*
* Enable deterministic ECDSA (RFC 6979).
* Standard ECDSA is "fragile" in the sense that lack of entropy when signing
* may result in a compromise of the long-term signing key. This is avoided by
* the deterministic variant.
*
* Requires: MBEDTLS_HMAC_DRBG_C
*
* Comment this macro to disable deterministic ECDSA.
*/
// #define MBEDTLS_ECDSA_DETERMINISTIC

/**
* \def MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
*
* Enable the PSK based ciphersuite modes in SSL / TLS.
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
*/
//#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED
*
* Enable the DHE-PSK based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_DHM_C
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
*
* \warning    Using DHE constitutes a security risk as it
*             is not possible to validate custom DH parameters.
*             If possible, it is recommended users should consider
*             preferring other methods of key exchange.
*             See dhm.h for more details.
*
*/
#define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED
*
* Enable the ECDHE-PSK based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_ECDH_C
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
*/
//#define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED
*
* Enable the RSA-PSK based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
*           MBEDTLS_X509_CRT_PARSE_C
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
*/
//#define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_RSA_ENABLED
*
* Enable the RSA-only based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
*           MBEDTLS_X509_CRT_PARSE_C
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
*      MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
*/
#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED
*
* Enable the DHE-RSA based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_DHM_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
*           MBEDTLS_X509_CRT_PARSE_C
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
*      MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
*
* \warning    Using DHE constitutes a security risk as it
*             is not possible to validate custom DH parameters.
*             If possible, it is recommended users should consider
*             preferring other methods of key exchange.
*             See dhm.h for more details.
*
*/
//#define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED
*
* Enable the ECDHE-RSA based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_ECDH_C, MBEDTLS_RSA_C, MBEDTLS_PKCS1_V15,
*           MBEDTLS_X509_CRT_PARSE_C
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
*/
#define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED
*
* Enable the ECDHE-ECDSA based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_ECDH_C, MBEDTLS_ECDSA_C, MBEDTLS_X509_CRT_PARSE_C,
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
*/
//#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED
*
* Enable the ECDH-ECDSA based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
*/
// #define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED
*
* Enable the ECDH-RSA based ciphersuite modes in SSL / TLS.
*
* Requires: MBEDTLS_ECDH_C, MBEDTLS_X509_CRT_PARSE_C
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
*/
//#define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED

/**
* \def MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED
*
* Enable the ECJPAKE based ciphersuite modes in SSL / TLS.
*
* \warning This is currently experimental. EC J-PAKE support is based on the
* Thread v1.0.0 specification; incompatible changes to the specification
* might still happen. For this reason, this is disabled by default.
*
* Requires: MBEDTLS_ECJPAKE_C
*           MBEDTLS_SHA256_C
*           MBEDTLS_ECP_DP_SECP256R1_ENABLED
*
* This enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECJPAKE_WITH_AES_128_CCM_8
*/
//#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED

/**
* \def MBEDTLS_PK_PARSE_EC_EXTENDED
*
* Enhance support for reading EC keys using variants of SEC1 not allowed by
* RFC 5915 and RFC 5480.
*
* Currently this means parsing the SpecifiedECDomain choice of EC
* parameters (only known groups are supported, not arbitrary domains, to
* avoid validation issues).
*
* Disable if you only need to support RFC 5915 + 5480 key formats.
*/
// #define MBEDTLS_PK_PARSE_EC_EXTENDED

/**
* \def MBEDTLS_ERROR_STRERROR_DUMMY
*
* Enable a dummy error function to make use of mbedtls_strerror() in
* third party libraries easier when MBEDTLS_ERROR_C is disabled
* (no effect when MBEDTLS_ERROR_C is enabled).
*
* You can safely disable this if MBEDTLS_ERROR_C is enabled, or if you're
* not using mbedtls_strerror() or error_strerror() in your application.
*
* Disable if you run into name conflicts and want to really remove the
* mbedtls_strerror()
*/
// #define MBEDTLS_ERROR_STRERROR_DUMMY

//启用素数生成代码
/**
* \def MBEDTLS_GENPRIME
*
* Enable the prime-number generation code.
*
* Requires: MBEDTLS_BIGNUM_C
*/
#define MBEDTLS_GENPRIME

/**
* \def MBEDTLS_FS_IO
*
* Enable functions that use the filesystem.
*/
//#define MBEDTLS_FS_IO

/**
* \def MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES
*
* Do not add default entropy sources. These are the platform specific,
* mbedtls_timing_hardclock and HAVEGE based poll functions.
*
* This is useful to have more control over the added entropy sources in an
* application.
*
* Uncomment this macro to prevent loading of default entropy functions.
*/
//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES

/**
* \def MBEDTLS_NO_PLATFORM_ENTROPY
*
* Do not use built-in platform entropy functions.
* This is useful if your platform does not support
* standards like the /dev/urandom or Windows CryptoAPI.
*
* Uncomment this macro to disable the built-in platform entropy functions.
*/
#define MBEDTLS_NO_PLATFORM_ENTROPY

/**
* \def MBEDTLS_ENTROPY_FORCE_SHA256
*
* Force the entropy accumulator to use a SHA-256 accumulator instead of the
* default SHA-512 based one (if both are available).
*
* Requires: MBEDTLS_SHA256_C
*
* On 32-bit systems SHA-256 can be much faster than SHA-512. Use this option
* if you have performance concerns.
*
* This option is only useful if both MBEDTLS_SHA256_C and
* MBEDTLS_SHA512_C are defined. Otherwise the available hash module is used.
*/
//#define MBEDTLS_ENTROPY_FORCE_SHA256

/**
* \def MBEDTLS_ENTROPY_NV_SEED
*
* Enable the non-volatile (NV) seed file-based entropy source.
* (Also enables the NV seed read/write functions in the platform layer)
*
* This is crucial (if not required) on systems that do not have a
* cryptographic entropy source (in hardware or kernel) available.
*
* Requires: MBEDTLS_ENTROPY_C, MBEDTLS_PLATFORM_C
*
* \note The read/write functions that are used by the entropy source are
*       determined in the platform layer, and can be modified at runtime and/or
*       compile-time depending on the flags (MBEDTLS_PLATFORM_NV_SEED_*) used.
*
* \note If you use the default implementation functions that read a seedfile
*       with regular fopen(), please make sure you make a seedfile with the
*       proper name (defined in MBEDTLS_PLATFORM_STD_NV_SEED_FILE) and at
*       least MBEDTLS_ENTROPY_BLOCK_SIZE bytes in size that can be read from
*       and written to or you will get an entropy source error! The default
*       implementation will only use the first MBEDTLS_ENTROPY_BLOCK_SIZE
*       bytes from the file.
*
* \note The entropy collector will write to the seed file before entropy is
*       given to an external source, to update it.
*/
//#define MBEDTLS_ENTROPY_NV_SEED

/**
* \def MBEDTLS_MEMORY_DEBUG
*
* Enable debugging of buffer allocator memory issues. Automatically prints
* (to stderr) all (fatal) messages on memory allocation issues. Enables
* function for 'debug output' of allocated memory.
*
* Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C
*
* Uncomment this macro to let the buffer allocator print out error messages.
*/
//#define MBEDTLS_MEMORY_DEBUG

/**
* \def MBEDTLS_MEMORY_BACKTRACE
*
* Include backtrace information with each allocated block.
*
* Requires: MBEDTLS_MEMORY_BUFFER_ALLOC_C
*           GLIBC-compatible backtrace() an backtrace_symbols() support
*
* Uncomment this macro to include backtrace information
*/
//#define MBEDTLS_MEMORY_BACKTRACE

/**
* \def MBEDTLS_PK_RSA_ALT_SUPPORT
*
* Support external private RSA keys (eg from a HSM) in the PK layer.
*
* Comment this macro to disable support for external private RSA keys.
*/
//#define MBEDTLS_PK_RSA_ALT_SUPPORT

//启用对PKCS#1 v1.5编码的支持
/**
* \def MBEDTLS_PKCS1_V15
*
* Enable support for PKCS#1 v1.5 encoding.
*
* Requires: MBEDTLS_RSA_C
*
* This enables support for PKCS#1 v1.5 operations.
*/
#define MBEDTLS_PKCS1_V15

//启用对PKCS#1 v2.1编码的支持
/**
* \def MBEDTLS_PKCS1_V21
*
* Enable support for PKCS#1 v2.1 encoding.
*
* Requires: MBEDTLS_MD_C, MBEDTLS_RSA_C
*
* This enables support for RSAES-OAEP and RSASSA-PSS operations.
*/
//#define MBEDTLS_PKCS1_V21

/**
* \def MBEDTLS_RSA_NO_CRT
*
* Do not use the Chinese Remainder Theorem
* for the RSA private operation.
*
* Uncomment this macro to disable the use of CRT in RSA.
*
*/
//#define MBEDTLS_RSA_NO_CRT

/**
* \def MBEDTLS_SELF_TEST
*
* Enable the checkup functions (*_self_test).
*/
// #define MBEDTLS_SELF_TEST

/**
* \def MBEDTLS_SHA256_SMALLER
*
* Enable an implementation of SHA-256 that has lower ROM footprint but also
* lower performance.
*
* The default implementation is meant to be a reasonnable compromise between
* performance and size. This version optimizes more aggressively for size at
* the expense of performance. Eg on Cortex-M4 it reduces the size of
* mbedtls_sha256_process() from ~2KB to ~0.5KB for a performance hit of about
* 30%.
*
* Uncomment to enable the smaller implementation of SHA256.
*/
//#define MBEDTLS_SHA256_SMALLER

/**
* \def MBEDTLS_SSL_ALL_ALERT_MESSAGES
*
* Enable sending of alert messages in case of encountered errors as per RFC.
* If you choose not to send the alert messages, mbed TLS can still communicate
* with other servers, only debugging of failures is harder.
*
* The advantage of not sending alert messages, is that no information is given
* about reasons for failures thus preventing adversaries of gaining intel.
*
* Enable sending of all alert messages
*/
#define MBEDTLS_SSL_ALL_ALERT_MESSAGES

/**
* \def MBEDTLS_SSL_ASYNC_PRIVATE
*
* Enable asynchronous external private key operations in SSL. This allows
* you to configure an SSL connection to call an external cryptographic
* module to perform private key operations instead of performing the
* operation inside the library.
*
*/
//#define MBEDTLS_SSL_ASYNC_PRIVATE

/**
* \def MBEDTLS_SSL_DEBUG_ALL
*
* Enable the debug messages in SSL module for all issues.
* Debug messages have been disabled in some places to prevent timing
* attacks due to (unbalanced) debugging function calls.
*
* If you need all error reporting you should enable this during debugging,
* but remove this for production servers that should log as well.
*
* Uncomment this macro to report all debug messages on errors introducing
* a timing side-channel.
*
*/
//#define MBEDTLS_SSL_DEBUG_ALL

/** \def MBEDTLS_SSL_ENCRYPT_THEN_MAC
*
* Enable support for Encrypt-then-MAC, RFC 7366.
*
* This allows peers that both support it to use a more robust protection for
* ciphersuites using CBC, providing deep resistance against timing attacks
* on the padding or underlying cipher.
*
* This only affects CBC ciphersuites, and is useless if none is defined.
*
* Requires: MBEDTLS_SSL_PROTO_TLS1    or
*           MBEDTLS_SSL_PROTO_TLS1_1  or
*           MBEDTLS_SSL_PROTO_TLS1_2
*
* Comment this macro to disable support for Encrypt-then-MAC
*/
// #define MBEDTLS_SSL_ENCRYPT_THEN_MAC

/** \def MBEDTLS_SSL_EXTENDED_MASTER_SECRET
*
* Enable support for Extended Master Secret, aka Session Hash
* (draft-ietf-tls-session-hash-02).
*
* This was introduced as "the proper fix" to the Triple Handshake familiy of
* attacks, but it is recommended to always use it (even if you disable
* renegotiation), since it actually fixes a more fundamental issue in the
* original SSL/TLS design, and has implications beyond Triple Handshake.
*
* Requires: MBEDTLS_SSL_PROTO_TLS1    or
*           MBEDTLS_SSL_PROTO_TLS1_1  or
*           MBEDTLS_SSL_PROTO_TLS1_2
*
* Comment this macro to disable support for Extended Master Secret.
*/
// #define MBEDTLS_SSL_EXTENDED_MASTER_SECRET

/**
* \def MBEDTLS_SSL_FALLBACK_SCSV
*
* Enable support for FALLBACK_SCSV (draft-ietf-tls-downgrade-scsv-00).
*
* For servers, it is recommended to always enable this, unless you support
* only one version of TLS, or know for sure that none of your clients
* implements a fallback strategy.
*
* For clients, you only need this if you're using a fallback strategy, which
* is not recommended in the first place, unless you absolutely need it to
* interoperate with buggy (version-intolerant) servers.
*
* Comment this macro to disable support for FALLBACK_SCSV
*/
// #define MBEDTLS_SSL_FALLBACK_SCSV

/**
* \def MBEDTLS_SSL_HW_RECORD_ACCEL
*
* Enable hooking functions in SSL module for hardware acceleration of
* individual records.
*
* Uncomment this macro to enable hooking functions.
*/
//#define MBEDTLS_SSL_HW_RECORD_ACCEL

/**
* \def MBEDTLS_SSL_CBC_RECORD_SPLITTING
*
* Enable 1/n-1 record splitting for CBC mode in SSLv3 and TLS 1.0.
*
* This is a countermeasure to the BEAST attack, which also minimizes the risk
* of interoperability issues compared to sending 0-length records.
*
* Comment this macro to disable 1/n-1 record splitting.
*/
// #define MBEDTLS_SSL_CBC_RECORD_SPLITTING

/**
* \def MBEDTLS_SSL_RENEGOTIATION
*
* Enable support for TLS renegotiation.
*
* The two main uses of renegotiation are (1) refresh keys on long-lived
* connections and (2) client authentication after the initial handshake.
* If you don't need renegotiation, it's probably better to disable it, since
* it has been associated with security issues in the past and is easy to
* misuse/misunderstand.
*
* Comment this to disable support for renegotiation.
*
* \note   Even if this option is disabled, both client and server are aware
*         of the Renegotiation Indication Extension (RFC 5746) used to
*         prevent the SSL renegotiation attack (see RFC 5746 Sect. 1).
*         (See \c mbedtls_ssl_conf_legacy_renegotiation for the
*          configuration of this extension).
*
*/
#define MBEDTLS_SSL_RENEGOTIATION

/**
* \def MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO
*
* Enable support for receiving and parsing SSLv2 Client Hello messages for the
* SSL Server module (MBEDTLS_SSL_SRV_C).
*
* Uncomment this macro to enable support for SSLv2 Client Hello messages.
*/
//#define MBEDTLS_SSL_SRV_SUPPORT_SSLV2_CLIENT_HELLO

/**
* \def MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE
*
* Pick the ciphersuite according to the client's preferences rather than ours
* in the SSL Server module (MBEDTLS_SSL_SRV_C).
*
* Uncomment this macro to respect client's ciphersuite order
*/
//#define MBEDTLS_SSL_SRV_RESPECT_CLIENT_PREFERENCE

/**
* \def MBEDTLS_SSL_MAX_FRAGMENT_LENGTH
*
* Enable support for RFC 6066 max_fragment_length extension in SSL.
*
* Comment this macro to disable support for the max_fragment_length extension
*/
#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH

/**
* \def MBEDTLS_SSL_PROTO_SSL3
*
* Enable support for SSL 3.0.
*
* Requires: MBEDTLS_MD5_C
*           MBEDTLS_SHA1_C
*
* Comment this macro to disable support for SSL 3.0
*/
//#define MBEDTLS_SSL_PROTO_SSL3

/**
* \def MBEDTLS_SSL_PROTO_TLS1
*
* Enable support for TLS 1.0.
*
* Requires: MBEDTLS_MD5_C
*           MBEDTLS_SHA1_C
*
* Comment this macro to disable support for TLS 1.0
*/
//#define MBEDTLS_SSL_PROTO_TLS1

/**
* \def MBEDTLS_SSL_PROTO_TLS1_1
*
* Enable support for TLS 1.1 (and DTLS 1.0 if DTLS is enabled).
*
* Requires: MBEDTLS_MD5_C
*           MBEDTLS_SHA1_C
*
* Comment this macro to disable support for TLS 1.1 / DTLS 1.0
*/
//#define MBEDTLS_SSL_PROTO_TLS1_1

/**
* \def MBEDTLS_SSL_PROTO_TLS1_2
*
* Enable support for TLS 1.2 (and DTLS 1.2 if DTLS is enabled).
*
* Requires: MBEDTLS_SHA1_C or MBEDTLS_SHA256_C or MBEDTLS_SHA512_C
*           (Depends on ciphersuites)
*
* Comment this macro to disable support for TLS 1.2 / DTLS 1.2
*/
#define MBEDTLS_SSL_PROTO_TLS1_2

/**
* \def MBEDTLS_SSL_PROTO_DTLS
*
* Enable support for DTLS (all available versions).
*
* Enable this and MBEDTLS_SSL_PROTO_TLS1_1 to enable DTLS 1.0,
* and/or this and MBEDTLS_SSL_PROTO_TLS1_2 to enable DTLS 1.2.
*
* Requires: MBEDTLS_SSL_PROTO_TLS1_1
*        or MBEDTLS_SSL_PROTO_TLS1_2
*
* Comment this macro to disable support for DTLS
*/
//#define MBEDTLS_SSL_PROTO_DTLS

/**
* \def MBEDTLS_SSL_ALPN
*
* Enable support for RFC 7301 Application Layer Protocol Negotiation.
*
* Comment this macro to disable support for ALPN.
*/
//#define MBEDTLS_SSL_ALPN

/**
* \def MBEDTLS_SSL_DTLS_ANTI_REPLAY
*
* Enable support for the anti-replay mechanism in DTLS.
*
* Requires: MBEDTLS_SSL_TLS_C
*           MBEDTLS_SSL_PROTO_DTLS
*
* \warning Disabling this is often a security risk!
* See mbedtls_ssl_conf_dtls_anti_replay() for details.
*
* Comment this to disable anti-replay in DTLS.
*/
//#define MBEDTLS_SSL_DTLS_ANTI_REPLAY

/**
* \def MBEDTLS_SSL_DTLS_HELLO_VERIFY
*
* Enable support for HelloVerifyRequest on DTLS servers.
*
* This feature is highly recommended to prevent DTLS servers being used as
* amplifiers in DoS attacks against other hosts. It should always be enabled
* unless you know for sure amplification cannot be a problem in the
* environment in which your server operates.
*
* \warning Disabling this can ba a security risk! (see above)
*
* Requires: MBEDTLS_SSL_PROTO_DTLS
*
* Comment this to disable support for HelloVerifyRequest.
*/
//#define MBEDTLS_SSL_DTLS_HELLO_VERIFY

/**
* \def MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE
*
* Enable server-side support for clients that reconnect from the same port.
*
* Some clients unexpectedly close the connection and try to reconnect using the
* same source port. This needs special support from the server to handle the
* new connection securely, as described in section 4.2.8 of RFC 6347. This
* flag enables that support.
*
* Requires: MBEDTLS_SSL_DTLS_HELLO_VERIFY
*
* Comment this to disable support for clients reusing the source port.
*/
//#define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE

/**
* \def MBEDTLS_SSL_DTLS_BADMAC_LIMIT
*
* Enable support for a limit of records with bad MAC.
*
* See mbedtls_ssl_conf_dtls_badmac_limit().
*
* Requires: MBEDTLS_SSL_PROTO_DTLS
*/
//#define MBEDTLS_SSL_DTLS_BADMAC_LIMIT

/**
* \def MBEDTLS_SSL_SESSION_TICKETS
*
* Enable support for RFC 5077 session tickets in SSL.
* Client-side, provides full support for session tickets (maintainance of a
* session store remains the responsibility of the application, though).
* Server-side, you also need to provide callbacks for writing and parsing
* tickets, including authenticated encryption and key management. Example
* callbacks are provided by MBEDTLS_SSL_TICKET_C.
*
* Comment this macro to disable support for SSL session tickets
*/
#define MBEDTLS_SSL_SESSION_TICKETS

/**
* \def MBEDTLS_SSL_EXPORT_KEYS
*
* Enable support for exporting key block and master secret.
* This is required for certain users of TLS, e.g. EAP-TLS.
*
* Comment this macro to disable support for key export
*/
#define MBEDTLS_SSL_EXPORT_KEYS

/**
* \def MBEDTLS_SSL_SERVER_NAME_INDICATION
*
* Enable support for RFC 6066 server name indication (SNI) in SSL.
*
* Requires: MBEDTLS_X509_CRT_PARSE_C
*
* Comment this macro to disable support for server name indication in SSL
*/
#define MBEDTLS_SSL_SERVER_NAME_INDICATION

/**
* \def MBEDTLS_SSL_TRUNCATED_HMAC
*
* Enable support for RFC 6066 truncated HMAC in SSL.
*
* Comment this macro to disable support for truncated HMAC in SSL
*/
#define MBEDTLS_SSL_TRUNCATED_HMAC

/**
* \def MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT
*
* Fallback to old (pre-2.7), non-conforming implementation of the truncated
* HMAC extension which also truncates the HMAC key. Note that this option is
* only meant for a transitory upgrade period and is likely to be removed in
* a future version of the library.
*
* \warning The old implementation is non-compliant and has a security weakness
*          (2^80 brute force attack on the HMAC key used for a single,
*          uninterrupted connection). This should only be enabled temporarily
*          when (1) the use of truncated HMAC is essential in order to save
*          bandwidth, and (2) the peer is an Mbed TLS stack that doesn't use
*          the fixed implementation yet (pre-2.7).
*
* \deprecated This option is deprecated and will likely be removed in a
*             future version of Mbed TLS.
*
* Uncomment to fallback to old, non-compliant truncated HMAC implementation.
*
* Requires: MBEDTLS_SSL_TRUNCATED_HMAC
*/
//#define MBEDTLS_SSL_TRUNCATED_HMAC_COMPAT

/**
* \def MBEDTLS_THREADING_ALT
*
* Provide your own alternate threading implementation.
*
* Requires: MBEDTLS_THREADING_C
*
* Uncomment this to allow your own alternate threading implementation.
*/
//#define MBEDTLS_THREADING_ALT

/**
* \def MBEDTLS_THREADING_PTHREAD
*
* Enable the pthread wrapper layer for the threading layer.
*
* Requires: MBEDTLS_THREADING_C
*
* Uncomment this to enable pthread mutexes.
*/
//#define MBEDTLS_THREADING_PTHREAD

/**
* \def MBEDTLS_VERSION_FEATURES
*
* Allow run-time checking of compile-time enabled features. Thus allowing users
* to check at run-time if the library is for instance compiled with threading
* support via mbedtls_version_check_feature().
*
* Requires: MBEDTLS_VERSION_C
*
* Comment this to disable run-time checking and save ROM space
*/
//#define MBEDTLS_VERSION_FEATURES

/**
* \def MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3
*
* If set, the X509 parser will not break-off when parsing an X509 certificate
* and encountering an extension in a v1 or v2 certificate.
*
* Uncomment to prevent an error.
*/
//#define MBEDTLS_X509_ALLOW_EXTENSIONS_NON_V3

/**
* \def MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION
*
* If set, the X509 parser will not break-off when parsing an X509 certificate
* and encountering an unknown critical extension.
*
* \warning Depending on your PKI use, enabling this can be a security risk!
*
* Uncomment to prevent an error.
*/
//#define MBEDTLS_X509_ALLOW_UNSUPPORTED_CRITICAL_EXTENSION

/**
* \def MBEDTLS_X509_CHECK_KEY_USAGE
*
* Enable verification of the keyUsage extension (CA and leaf certificates).
*
* Disabling this avoids problems with mis-issued and/or misused
* (intermediate) CA and leaf certificates.
*
* \warning Depending on your PKI use, disabling this can be a security risk!
*
* Comment to skip keyUsage checking for both CA and leaf certificates.
*/
#define MBEDTLS_X509_CHECK_KEY_USAGE

/**
* \def MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE
*
* Enable verification of the extendedKeyUsage extension (leaf certificates).
*
* Disabling this avoids problems with mis-issued and/or misused certificates.
*
* \warning Depending on your PKI use, disabling this can be a security risk!
*
* Comment to skip extendedKeyUsage checking for certificates.
*/
#define MBEDTLS_X509_CHECK_EXTENDED_KEY_USAGE

/**
* \def MBEDTLS_X509_RSASSA_PSS_SUPPORT
*
* Enable parsing and verification of X.509 certificates, CRLs and CSRS
* signed with RSASSA-PSS (aka PKCS#1 v2.1).
*
* Comment this macro to disallow using RSASSA-PSS in certificates.
*/
//#define MBEDTLS_X509_RSASSA_PSS_SUPPORT

/**
* \def MBEDTLS_ZLIB_SUPPORT
*
* If set, the SSL/TLS module uses ZLIB to support compression and
* decompression of packet data.
*
* \warning TLS-level compression MAY REDUCE SECURITY! See for example the
* CRIME attack. Before enabling this option, you should examine with care if
* CRIME or similar exploits may be a applicable to your use case.
*
* \note Currently compression can't be used with DTLS.
*
* \deprecated This feature is deprecated and will be removed
*             in the next major revision of the library.
*
* Used in: library/ssl_tls.c
*          library/ssl_cli.c
*          library/ssl_srv.c
*
* This feature requires zlib library and headers to be present.
*
* Uncomment to enable use of ZLIB
*/
//#define MBEDTLS_ZLIB_SUPPORT
/* \} name SECTION: mbed TLS feature support */

/**
* \name SECTION: mbed TLS modules
*
* This section enables or disables entire modules in mbed TLS
* \{
*/

/**
* \def MBEDTLS_AESNI_C
*
* Enable AES-NI support on x86-64.
*
* Module:  library/aesni.c
* Caller:  library/aes.c
*
* Requires: MBEDTLS_HAVE_ASM
*
* This modules adds support for the AES-NI instructions on x86-64
*/
#define MBEDTLS_AESNI_C

/**
* \def MBEDTLS_AES_C
*
* Enable the AES block cipher.
*
* Module:  library/aes.c
* Caller:  library/cipher.c
*          library/pem.c
*          library/ctr_drbg.c
*
* This module enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_DHE_RSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_PSK_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_AES_128_CBC_SHA
*      MBEDTLS_TLS_PSK_WITH_AES_256_GCM_SHA384
*      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA384
*      MBEDTLS_TLS_PSK_WITH_AES_256_CBC_SHA
*      MBEDTLS_TLS_PSK_WITH_AES_128_GCM_SHA256
*      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA256
*      MBEDTLS_TLS_PSK_WITH_AES_128_CBC_SHA
*
* PEM_PARSE uses AES for decrypting encrypted keys.
*/
#define MBEDTLS_AES_C

/**
* \def MBEDTLS_ARC4_C
*
* Enable the ARCFOUR stream cipher.
*
* Module:  library/arc4.c
* Caller:  library/cipher.c
*
* This module enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_RC4_128_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_RC4_128_SHA
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_RC4_128_SHA
*      MBEDTLS_TLS_ECDHE_RSA_WITH_RC4_128_SHA
*      MBEDTLS_TLS_ECDHE_PSK_WITH_RC4_128_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_RC4_128_SHA
*      MBEDTLS_TLS_RSA_WITH_RC4_128_SHA
*      MBEDTLS_TLS_RSA_WITH_RC4_128_MD5
*      MBEDTLS_TLS_RSA_PSK_WITH_RC4_128_SHA
*      MBEDTLS_TLS_PSK_WITH_RC4_128_SHA
*
* \warning   ARC4 is considered a weak cipher and its use constitutes a
*            security risk. If possible, we recommend avoidng dependencies on
*            it, and considering stronger ciphers instead.
*
*/
//#define MBEDTLS_ARC4_C

/**
* \def MBEDTLS_ASN1_PARSE_C
*
* Enable the generic ASN1 parser.
*
* Module:  library/asn1.c
* Caller:  library/x509.c
*          library/dhm.c
*          library/pkcs12.c
*          library/pkcs5.c
*          library/pkparse.c
*/
#define MBEDTLS_ASN1_PARSE_C

/**
* \def MBEDTLS_ASN1_WRITE_C
*
* Enable the generic ASN1 writer.
*
* Module:  library/asn1write.c
* Caller:  library/ecdsa.c
*          library/pkwrite.c
*          library/x509_create.c
*          library/x509write_crt.c
*          library/x509write_csr.c
*/
#define MBEDTLS_ASN1_WRITE_C

/**
* \def MBEDTLS_BASE64_C
*
* Enable the Base64 module.
*
* Module:  library/base64.c
* Caller:  library/pem.c
*
* This module is required for PEM support (required by X.509).
*/
#define MBEDTLS_BASE64_C

/**
* \def MBEDTLS_BIGNUM_C
*
* Enable the multi-precision integer library.
*
* Module:  library/bignum.c
* Caller:  library/dhm.c
*          library/ecp.c
*          library/ecdsa.c
*          library/rsa.c
*          library/rsa_internal.c
*          library/ssl_tls.c
*
* This module is required for RSA, DHM and ECC (ECDH, ECDSA) support.
*/
#define MBEDTLS_BIGNUM_C

/**
* \def MBEDTLS_BLOWFISH_C
*
* Enable the Blowfish block cipher.
*
* Module:  library/blowfish.c
*/
#define MBEDTLS_BLOWFISH_C

/**
* \def MBEDTLS_CAMELLIA_C
*
* Enable the Camellia block cipher.
*
* Module:  library/camellia.c
* Caller:  library/cipher.c
*
* This module enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_256_CBC_SHA
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_CAMELLIA_128_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_PSK_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_256_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_CAMELLIA_128_CBC_SHA
*      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_CAMELLIA_128_CBC_SHA256
*      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_GCM_SHA384
*      MBEDTLS_TLS_PSK_WITH_CAMELLIA_256_CBC_SHA384
*      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_GCM_SHA256
*      MBEDTLS_TLS_PSK_WITH_CAMELLIA_128_CBC_SHA256
*/
#define MBEDTLS_CAMELLIA_C

/**
* \def MBEDTLS_ARIA_C
*
* Enable the ARIA block cipher.
*
* Module:  library/aria.c
* Caller:  library/cipher.c
*
* This module enables the following ciphersuites (if other requisites are
* enabled as well):
*
*      MBEDTLS_TLS_RSA_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_RSA_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_RSA_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDHE_RSA_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_ECDH_RSA_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_PSK_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_PSK_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_CBC_SHA384
*      MBEDTLS_TLS_PSK_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_PSK_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_DHE_PSK_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_128_GCM_SHA256
*      MBEDTLS_TLS_RSA_PSK_WITH_ARIA_256_GCM_SHA384
*      MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_128_CBC_SHA256
*      MBEDTLS_TLS_ECDHE_PSK_WITH_ARIA_256_CBC_SHA384
*/
//#define MBEDTLS_ARIA_C

/**
* \def MBEDTLS_CCM_C
*
* Enable the Counter with CBC-MAC (CCM) mode for 128-bit block cipher.
*
* Module:  library/ccm.c
*
* Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
*
* This module enables the AES-CCM ciphersuites, if other requisites are
* enabled as well.
*/
//#define MBEDTLS_CCM_C

/**
* \def MBEDTLS_CERTS_C
*
* Enable the test certificates.
*
* Module:  library/certs.c
* Caller:
*
* This module is used for testing (ssl_client/server).
*/
#define MBEDTLS_CERTS_C

/**
* \def MBEDTLS_CHACHA20_C
*
* Enable the ChaCha20 stream cipher.
*
* Module:  library/chacha20.c
*/
// #define MBEDTLS_CHACHA20_C

/**
* \def MBEDTLS_CHACHAPOLY_C
*
* Enable the ChaCha20-Poly1305 AEAD algorithm.
*
* Module:  library/chachapoly.c
*
* This module requires: MBEDTLS_CHACHA20_C, MBEDTLS_POLY1305_C
*/
// #define MBEDTLS_CHACHAPOLY_C

/**
* \def MBEDTLS_CIPHER_C
*
* Enable the generic cipher layer.
*
* Module:  library/cipher.c
* Caller:  library/ssl_tls.c
*
* Uncomment to enable generic cipher wrappers.
*/
#define MBEDTLS_CIPHER_C

/**
* \def MBEDTLS_CMAC_C
*
* Enable the CMAC (Cipher-based Message Authentication Code) mode for block
* ciphers.
*
* Module:  library/cmac.c
*
* Requires: MBEDTLS_AES_C or MBEDTLS_DES_C
*
*/
//#define MBEDTLS_CMAC_C

/**
* \def MBEDTLS_CTR_DRBG_C
*
* Enable the CTR_DRBG AES-based random generator.
* The CTR_DRBG generator uses AES-256 by default.
* To use AES-128 instead, enable MBEDTLS_CTR_DRBG_USE_128_BIT_KEY below.
*
* Module:  library/ctr_drbg.c
* Caller:
*
* Requires: MBEDTLS_AES_C
*
* This module provides the CTR_DRBG AES random number generator.
*/
#define MBEDTLS_CTR_DRBG_C

/**
* \def MBEDTLS_DEBUG_C
*
* Enable the debug functions.
*
* Module:  library/debug.c
* Caller:  library/ssl_cli.c
*          library/ssl_srv.c
*          library/ssl_tls.c
*
* This module provides debugging functions.
*/
#define MBEDTLS_DEBUG_C

/**
* \def MBEDTLS_DES_C
*
* Enable the DES block cipher.
*
* Module:  library/des.c
* Caller:  library/pem.c
*          library/cipher.c
*
* This module enables the following ciphersuites (if other requisites are
* enabled as well):
*      MBEDTLS_TLS_ECDH_ECDSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDH_RSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDHE_ECDSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDHE_RSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_DHE_RSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_ECDHE_PSK_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_DHE_PSK_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_RSA_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_RSA_PSK_WITH_3DES_EDE_CBC_SHA
*      MBEDTLS_TLS_PSK_WITH_3DES_EDE_CBC_SHA
*
* PEM_PARSE uses DES/3DES for decrypting encrypted keys.
*
* \warning   DES is considered a weak cipher and its use constitutes a
*            security risk. We recommend considering stronger ciphers instead.
*/
//#define MBEDTLS_DES_C

/**
* \def MBEDTLS_DHM_C
*
* Enable the Diffie-Hellman-Merkle module.
*
* Module:  library/dhm.c
* Caller:  library/ssl_cli.c
*          library/ssl_srv.c
*
* This module is used by the following key exchanges:
*      DHE-RSA, DHE-PSK
*
* \warning    Using DHE constitutes a security risk as it
*             is not possible to validate custom DH parameters.
*             If possible, it is recommended users should consider
*             preferring other methods of key exchange.
*             See dhm.h for more details.
*
*/
#define MBEDTLS_DHM_C

//在GF(p)库上启用椭圆曲线
/**
* \def MBEDTLS_ECDH_C
*
* Enable the elliptic curve Diffie-Hellman library.
*
* Module:  library/ecdh.c
* Caller:  library/ssl_cli.c
*          library/ssl_srv.c
*
* This module is used by the following key exchanges:
*      ECDHE-ECDSA, ECDHE-RSA, DHE-PSK
*
* Requires: MBEDTLS_ECP_C
*/
#define MBEDTLS_ECDH_C

/**
* \def MBEDTLS_ECDSA_C
*
* Enable the elliptic curve DSA library.
*
* Module:  library/ecdsa.c
* Caller:
*
* This module is used by the following key exchanges:
*      ECDHE-ECDSA
*
* Requires: MBEDTLS_ECP_C, MBEDTLS_ASN1_WRITE_C, MBEDTLS_ASN1_PARSE_C
*/
#define MBEDTLS_ECDSA_C

/**
* \def MBEDTLS_ECJPAKE_C
*
* Enable the elliptic curve J-PAKE library.
*
* \warning This is currently experimental. EC J-PAKE support is based on the
* Thread v1.0.0 specification; incompatible changes to the specification
* might still happen. For this reason, this is disabled by default.
*
* Module:  library/ecjpake.c
* Caller:
*
* This module is used by the following key exchanges:
*      ECJPAKE
*
* Requires: MBEDTLS_ECP_C, MBEDTLS_MD_C
*/
//#define MBEDTLS_ECJPAKE_C

/**
* \def MBEDTLS_ECP_C
*
* Enable the elliptic curve over GF(p) library.
*
* Module:  library/ecp.c
* Caller:  library/ecdh.c
*          library/ecdsa.c
*          library/ecjpake.c
*
* Requires: MBEDTLS_BIGNUM_C and at least one MBEDTLS_ECP_DP_XXX_ENABLED
*/
#define MBEDTLS_ECP_C

/**
* \def MBEDTLS_ENTROPY_C
*
* Enable the platform-specific entropy code.
*
* Module:  library/entropy.c
* Caller:
*
* Requires: MBEDTLS_SHA512_C or MBEDTLS_SHA256_C
*
* This module provides a generic entropy pool
*/
#define MBEDTLS_ENTROPY_C

/**
* \def MBEDTLS_ERROR_C
*
* Enable error code to error string conversion.
*
* Module:  library/error.c
* Caller:
*
* This module enables mbedtls_strerror().
*/
#define MBEDTLS_ERROR_C

/**
* \def MBEDTLS_GCM_C
*
* Enable the Galois/Counter Mode (GCM) for AES.
*
* Module:  library/gcm.c
*
* Requires: MBEDTLS_AES_C or MBEDTLS_CAMELLIA_C
*
* This module enables the AES-GCM and CAMELLIA-GCM ciphersuites, if other
* requisites are enabled as well.
*/
#define MBEDTLS_GCM_C

/**
* \def MBEDTLS_HAVEGE_C
*
* Enable the HAVEGE random generator.
*
* Warning: the HAVEGE random generator is not suitable for virtualized
*          environments
*
* Warning: the HAVEGE random generator is dependent on timing and specific
*          processor traits. It is therefore not advised to use HAVEGE as
*          your applications primary random generator or primary entropy pool
*          input. As a secondary input to your entropy pool, it IS able add
*          the (limited) extra entropy it provides.
*
* Module:  library/havege.c
* Caller:
*
* Requires: MBEDTLS_TIMING_C
*
* Uncomment to enable the HAVEGE random generator.
*/
//#define MBEDTLS_HAVEGE_C

/**
* \def MBEDTLS_HKDF_C
*
* Enable the HKDF algorithm (RFC 5869).
*
* Module:  library/hkdf.c
* Caller:
*
* Requires: MBEDTLS_MD_C
*
* This module adds support for the Hashed Message Authentication Code
* (HMAC)-based key derivation function (HKDF).
*/
#define MBEDTLS_HKDF_C

/**
* \def MBEDTLS_HMAC_DRBG_C
*
* Enable the HMAC_DRBG random generator.
*
* Module:  library/hmac_drbg.c
* Caller:
*
* Requires: MBEDTLS_MD_C
*
* Uncomment to enable the HMAC_DRBG random number geerator.
*/
//#define MBEDTLS_HMAC_DRBG_C

/**
* \def MBEDTLS_NIST_KW_C
*
* Enable the Key Wrapping mode for 128-bit block ciphers,
* as defined in NIST SP 800-38F. Only KW and KWP modes
* are supported. At the moment, only AES is approved by NIST.
*
* Module:  library/nist_kw.c
*
* Requires: MBEDTLS_AES_C and MBEDTLS_CIPHER_C
*/
//#define MBEDTLS_NIST_KW_C

/**
* \def MBEDTLS_MD_C
*
* Enable the generic message digest layer.
*
* Module:  library/md.c
* Caller:
*
* Uncomment to enable generic message digest wrappers.
*/
#define MBEDTLS_MD_C

/**
* \def MBEDTLS_MD2_C
*
* Enable the MD2 hash algorithm.
*
* Module:  library/md2.c
* Caller:
*
* Uncomment to enable support for (rare) MD2-signed X.509 certs.
*
* \warning   MD2 is considered a weak message digest and its use constitutes a
*            security risk. If possible, we recommend avoiding dependencies on
*            it, and considering stronger message digests instead.
*
*/
//#define MBEDTLS_MD2_C

/**
* \def MBEDTLS_MD4_C
*
* Enable the MD4 hash algorithm.
*
* Module:  library/md4.c
* Caller:
*
* Uncomment to enable support for (rare) MD4-signed X.509 certs.
*
* \warning   MD4 is considered a weak message digest and its use constitutes a
*            security risk. If possible, we recommend avoiding dependencies on
*            it, and considering stronger message digests instead.
*
*/
//#define MBEDTLS_MD4_C

/**
* \def MBEDTLS_MD5_C
*
* Enable the MD5 hash algorithm.
*
* Module:  library/md5.c
* Caller:  library/md.c
*          library/pem.c
*          library/ssl_tls.c
*
* This module is required for SSL/TLS up to version 1.1, and for TLS 1.2
* depending on the handshake parameters. Further, it is used for checking
* MD5-signed certificates, and for PBKDF1 when decrypting PEM-encoded
* encrypted keys.
*
* \warning   MD5 is considered a weak message digest and its use constitutes a
*            security risk. If possible, we recommend avoiding dependencies on
*            it, and considering stronger message digests instead.
*
*/
#define MBEDTLS_MD5_C

/**
* \def MBEDTLS_MEMORY_BUFFER_ALLOC_C
*
* Enable the buffer allocator implementation that makes use of a (stack)
* based buffer to 'allocate' dynamic memory. (replaces calloc() and free()
* calls)
*
* Module:  library/memory_buffer_alloc.c
*
* Requires: MBEDTLS_PLATFORM_C
*           MBEDTLS_PLATFORM_MEMORY (to use it within mbed TLS)
*
* Enable this module to enable the buffer memory allocator.
*/
//#define MBEDTLS_MEMORY_BUFFER_ALLOC_C

/**
* \def MBEDTLS_NET_C
*
* Enable the TCP and UDP over IPv6/IPv4 networking routines.
*
* \note This module only works on POSIX/Unix (including Linux, BSD and OS X)
* and Windows. For other platforms, you'll want to disable it, and write your
* own networking callbacks to be passed to \c mbedtls_ssl_set_bio().
*
* \note See also our Knowledge Base article about porting to a new
* environment:
* https://tls.mbed.org/kb/how-to/h ... -new-environment-OS
*
* Module:  library/net_sockets.c
*
* This module provides networking routines.
*/
#define MBEDTLS_NET_C

//启用OID数据库
/**
* \def MBEDTLS_OID_C
*
* Enable the OID database.
*
* Module:  library/oid.c
* Caller:  library/asn1write.c
*          library/pkcs5.c
*          library/pkparse.c
*          library/pkwrite.c
*          library/rsa.c
*          library/x509.c
*          library/x509_create.c
*          library/x509_crl.c
*          library/x509_crt.c
*          library/x509_csr.c
*          library/x509write_crt.c
*          library/x509write_csr.c
*
* This modules translates between OIDs and internal values.
*/
#define MBEDTLS_OID_C

/**
* \def MBEDTLS_PADLOCK_C
*
* Enable VIA Padlock support on x86.
*
* Module:  library/padlock.c
* Caller:  library/aes.c
*
* Requires: MBEDTLS_HAVE_ASM
*
* This modules adds support for the VIA PadLock on x86.
*/
#define MBEDTLS_PADLOCK_C

/**
* \def MBEDTLS_PEM_PARSE_C
*
* Enable PEM decoding / parsing.
*
* Module:  library/pem.c
* Caller:  library/dhm.c
*          library/pkparse.c
*          library/x509_crl.c
*          library/x509_crt.c
*          library/x509_csr.c
*
* Requires: MBEDTLS_BASE64_C
*
* This modules adds support for decoding / parsing PEM files.
*/
#define MBEDTLS_PEM_PARSE_C

/**
* \def MBEDTLS_PEM_WRITE_C
*
* Enable PEM encoding / writing.
*
* Module:  library/pem.c
* Caller:  library/pkwrite.c
*          library/x509write_crt.c
*          library/x509write_csr.c
*
* Requires: MBEDTLS_BASE64_C
*
* This modules adds support for encoding / writing PEM files.
*/
//#define MBEDTLS_PEM_WRITE_C

//启用通用公共(非对称)密钥层
/**
* \def MBEDTLS_PK_C
*
* Enable the generic public (asymetric) key layer.
*
* Module:  library/pk.c
* Caller:  library/ssl_tls.c
*          library/ssl_cli.c
*          library/ssl_srv.c
*
* Requires: MBEDTLS_RSA_C or MBEDTLS_ECP_C
*
* Uncomment to enable generic public key wrappers.
*/
#define MBEDTLS_PK_C

/**
* \def MBEDTLS_PK_PARSE_C
*
* Enable the generic public (asymetric) key parser.
*
* Module:  library/pkparse.c
* Caller:  library/x509_crt.c
*          library/x509_csr.c
*
* Requires: MBEDTLS_PK_C
*
* Uncomment to enable generic public key parse functions.
*/
#define MBEDTLS_PK_PARSE_C

/**
* \def MBEDTLS_PK_WRITE_C
*
* Enable the generic public (asymetric) key writer.
*
* Module:  library/pkwrite.c
* Caller:  library/x509write.c
*
* Requires: MBEDTLS_PK_C
*
* Uncomment to enable generic public key write functions.
*/
//#define MBEDTLS_PK_WRITE_C

/**
* \def MBEDTLS_PKCS5_C
*
* Enable PKCS#5 functions.
*
* Module:  library/pkcs5.c
*
* Requires: MBEDTLS_MD_C
*
* This module adds support for the PKCS#5 functions.
*/
//#define MBEDTLS_PKCS5_C

/**
* \def MBEDTLS_PKCS11_C
*
* Enable wrapper for PKCS#11 smartcard support.
*
* Module:  library/pkcs11.c
* Caller:  library/pk.c
*
* Requires: MBEDTLS_PK_C
*
* This module enables SSL/TLS PKCS #11 smartcard support.
* Requires the presence of the PKCS#11 helper library (libpkcs11-helper)
*/
//#define MBEDTLS_PKCS11_C

/**
* \def MBEDTLS_PKCS12_C
*
* Enable PKCS#12 PBE functions.
* Adds algorithms for parsing PKCS#8 encrypted private keys
*
* Module:  library/pkcs12.c
* Caller:  library/pkparse.c
*
* Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_CIPHER_C, MBEDTLS_MD_C
* Can use:  MBEDTLS_ARC4_C
*
* This module enables PKCS#12 functions.
*/
//#define MBEDTLS_PKCS12_C

/**
* \def MBEDTLS_PLATFORM_C
*
* Enable the platform abstraction layer that allows you to re-assign
* functions like calloc(), free(), snprintf(), printf(), fprintf(), exit().
*
* Enabling MBEDTLS_PLATFORM_C enables to use of MBEDTLS_PLATFORM_XXX_ALT
* or MBEDTLS_PLATFORM_XXX_MACRO directives, allowing the functions mentioned
* above to be specified at runtime or compile time respectively.
*
* \note This abstraction layer must be enabled on Windows (including MSYS2)
* as other module rely on it for a fixed snprintf implementation.
*
* Module:  library/platform.c
* Caller:  Most other .c files
*
* This module enables abstraction of common (libc) functions.
*/
#define MBEDTLS_PLATFORM_C

/**
* \def MBEDTLS_POLY1305_C
*
* Enable the Poly1305 MAC algorithm.
*
* Module:  library/poly1305.c
* Caller:  library/chachapoly.c
*/
// #define MBEDTLS_POLY1305_C

/**
* \def MBEDTLS_RIPEMD160_C
*
* Enable the RIPEMD-160 hash algorithm.
*
* Module:  library/ripemd160.c
* Caller:  library/md.c
*
*/
//#define MBEDTLS_RIPEMD160_C

//启用RSA公钥密码系统
/**
* \def MBEDTLS_RSA_C
*
* Enable the RSA public-key cryptosystem.
*
* Module:  library/rsa.c
*          library/rsa_internal.c
* Caller:  library/ssl_cli.c
*          library/ssl_srv.c
*          library/ssl_tls.c
*          library/x509.c
*
* This module is used by the following key exchanges:
*      RSA, DHE-RSA, ECDHE-RSA, RSA-PSK
*
* Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C
*/
#define MBEDTLS_RSA_C

/**
* \def MBEDTLS_SHA1_C
*
* Enable the SHA1 cryptographic hash algorithm.
*
* Module:  library/sha1.c
* Caller:  library/md.c
*          library/ssl_cli.c
*          library/ssl_srv.c
*          library/ssl_tls.c
*          library/x509write_crt.c
*
* This module is required for SSL/TLS up to version 1.1, for TLS 1.2
* depending on the handshake parameters, and for SHA1-signed certificates.
*
* \warning   SHA-1 is considered a weak message digest and its use constitutes
*            a security risk. If possible, we recommend avoiding dependencies
*            on it, and considering stronger message digests instead.
*
*/
#define MBEDTLS_SHA1_C

/**
* \def MBEDTLS_SHA256_C
*
* Enable the SHA-224 and SHA-256 cryptographic hash algorithms.
*
* Module:  library/sha256.c
* Caller:  library/entropy.c
*          library/md.c
*          library/ssl_cli.c
*          library/ssl_srv.c
*          library/ssl_tls.c
*
* This module adds support for SHA-224 and SHA-256.
* This module is required for the SSL/TLS 1.2 PRF function.
*/
#define MBEDTLS_SHA256_C

/**
* \def MBEDTLS_SHA512_C
*
* Enable the SHA-384 and SHA-512 cryptographic hash algorithms.
*
* Module:  library/sha512.c
* Caller:  library/entropy.c
*          library/md.c
*          library/ssl_cli.c
*          library/ssl_srv.c
*
* This module adds support for SHA-384 and SHA-512.
*/
#define MBEDTLS_SHA512_C

/**
* \def MBEDTLS_SSL_CACHE_C
*
* Enable simple SSL cache implementation.
*
* Module:  library/ssl_cache.c
* Caller:
*
* Requires: MBEDTLS_SSL_CACHE_C
*/
//#define MBEDTLS_SSL_CACHE_C

/**
* \def MBEDTLS_SSL_COOKIE_C
*
* Enable basic implementation of DTLS cookies for hello verification.
*
* Module:  library/ssl_cookie.c
* Caller:
*/
//#define MBEDTLS_SSL_COOKIE_C

/**
* \def MBEDTLS_SSL_TICKET_C
*
* Enable an implementation of TLS server-side callbacks for session tickets.
*
* Module:  library/ssl_ticket.c
* Caller:
*
* Requires: MBEDTLS_CIPHER_C
*/
#define MBEDTLS_SSL_TICKET_C

/**
* \def MBEDTLS_SSL_CLI_C
*
* Enable the SSL/TLS client code.
*
* Module:  library/ssl_cli.c
* Caller:
*
* Requires: MBEDTLS_SSL_TLS_C
*
* This module is required for SSL/TLS client support.
*/
#define MBEDTLS_SSL_CLI_C

/**
* \def MBEDTLS_SSL_SRV_C
*
* Enable the SSL/TLS server code.
*
* Module:  library/ssl_srv.c
* Caller:
*
* Requires: MBEDTLS_SSL_TLS_C
*
* This module is required for SSL/TLS server support.
*/
//#define MBEDTLS_SSL_SRV_C

/**
* \def MBEDTLS_SSL_TLS_C
*
* Enable the generic SSL/TLS code.
*
* Module:  library/ssl_tls.c
* Caller:  library/ssl_cli.c
*          library/ssl_srv.c
*
* Requires: MBEDTLS_CIPHER_C, MBEDTLS_MD_C
*           and at least one of the MBEDTLS_SSL_PROTO_XXX defines
*
* This module is required for SSL/TLS.
*/
#define MBEDTLS_SSL_TLS_C

/**
* \def MBEDTLS_THREADING_C
*
* Enable the threading abstraction layer.
* By default mbed TLS assumes it is used in a non-threaded environment or that
* contexts are not shared between threads. If you do intend to use contexts
* between threads, you will need to enable this layer to prevent race
* conditions. See also our Knowledge Base article about threading:
* https://tls.mbed.org/kb/developm ... and-multi-threading
*
* Module:  library/threading.c
*
* This allows different threading implementations (self-implemented or
* provided).
*
* You will have to enable either MBEDTLS_THREADING_ALT or
* MBEDTLS_THREADING_PTHREAD.
*
* Enable this layer to allow use of mutexes within mbed TLS
*/
//#define MBEDTLS_THREADING_C

/**
* \def MBEDTLS_TIMING_C
*
* Enable the semi-portable timing interface.
*
* \note The provided implementation only works on POSIX/Unix (including Linux,
* BSD and OS X) and Windows. On other platforms, you can either disable that
* module and provide your own implementations of the callbacks needed by
* \c mbedtls_ssl_set_timer_cb() for DTLS, or leave it enabled and provide
* your own implementation of the whole module by setting
* \c MBEDTLS_TIMING_ALT in the current file.
*
* \note See also our Knowledge Base article about porting to a new
* environment:
* https://tls.mbed.org/kb/how-to/h ... -new-environment-OS
*
* Module:  library/timing.c
* Caller:  library/havege.c
*
* This module is used by the HAVEGE random number generator.
*/
//#define MBEDTLS_TIMING_C

/**
* \def MBEDTLS_VERSION_C
*
* Enable run-time version information.
*
* Module:  library/version.c
*
* This module provides run-time version information.
*/
//#define MBEDTLS_VERSION_C

/**
* \def MBEDTLS_X509_USE_C
*
* Enable X.509 core for using certificates.
*
* Module:  library/x509.c
* Caller:  library/x509_crl.c
*          library/x509_crt.c
*          library/x509_csr.c
*
* Requires: MBEDTLS_ASN1_PARSE_C, MBEDTLS_BIGNUM_C, MBEDTLS_OID_C,
*           MBEDTLS_PK_PARSE_C
*
* This module is required for the X.509 parsing modules.
*/
#define MBEDTLS_X509_USE_C

/**
* \def MBEDTLS_X509_CRT_PARSE_C
*
* Enable X.509 certificate parsing.
*
* Module:  library/x509_crt.c
* Caller:  library/ssl_cli.c
*          library/ssl_srv.c
*          library/ssl_tls.c
*
* Requires: MBEDTLS_X509_USE_C
*
* This module is required for X.509 certificate parsing.
*/
#define MBEDTLS_X509_CRT_PARSE_C

/**
* \def MBEDTLS_X509_CRL_PARSE_C
*
* Enable X.509 CRL parsing.
*
* Module:  library/x509_crl.c
* Caller:  library/x509_crt.c
*
* Requires: MBEDTLS_X509_USE_C
*
* This module is required for X.509 CRL parsing.
*/
#define MBEDTLS_X509_CRL_PARSE_C

/**
* \def MBEDTLS_X509_CSR_PARSE_C
*
* Enable X.509 Certificate Signing Request (CSR) parsing.
*
* Module:  library/x509_csr.c
* Caller:  library/x509_crt_write.c
*
* Requires: MBEDTLS_X509_USE_C
*
* This module is used for reading X.509 certificate request.
*/
//#define MBEDTLS_X509_CSR_PARSE_C

/**
* \def MBEDTLS_X509_CREATE_C
*
* Enable X.509 core for creating certificates.
*
* Module:  library/x509_create.c
*
* Requires: MBEDTLS_BIGNUM_C, MBEDTLS_OID_C, MBEDTLS_PK_WRITE_C
*
* This module is the basis for creating X.509 certificates and CSRs.
*/
//#define MBEDTLS_X509_CREATE_C

/**
* \def MBEDTLS_X509_CRT_WRITE_C
*
* Enable creating X.509 certificates.
*
* Module:  library/x509_crt_write.c
*
* Requires: MBEDTLS_X509_CREATE_C
*
* This module is required for X.509 certificate creation.
*/
//#define MBEDTLS_X509_CRT_WRITE_C

/**
* \def MBEDTLS_X509_CSR_WRITE_C
*
* Enable creating X.509 Certificate Signing Requests (CSR).
*
* Module:  library/x509_csr_write.c
*
* Requires: MBEDTLS_X509_CREATE_C
*
* This module is required for X.509 certificate request writing.
*/
//#define MBEDTLS_X509_CSR_WRITE_C

/**
* \def MBEDTLS_XTEA_C
*
* Enable the XTEA block cipher.
*
* Module:  library/xtea.c
* Caller:
*/
//#define MBEDTLS_XTEA_C

/* \} name SECTION: mbed TLS modules */

/**
* \name SECTION: Module configuration options
*
* This section allows for the setting of module specific sizes and
* configuration options. The default values are already present in the
* relevant header files and should suffice for the regular use cases.
*
* Our advice is to enable options and change their values here
* only if you have a good reason and know the consequences.
*
* Please check the respective header file for documentation on these
* parameters (to prevent duplicate documentation).
* \{
*/

/* MPI / BIGNUM options */
#define MBEDTLS_MPI_WINDOW_SIZE            6 /**< Maximum windows size used. */
#define MBEDTLS_MPI_MAX_SIZE            1024 /**< Maximum number of bytes for usable MPIs. */

/* CTR_DRBG options */
//#define MBEDTLS_CTR_DRBG_ENTROPY_LEN               48 /**< Amount of entropy used per seed by default (48 with SHA-512, 32 with SHA-256) */
//#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL        10000 /**< Interval before reseed is performed by default */
//#define MBEDTLS_CTR_DRBG_MAX_INPUT                256 /**< Maximum number of additional input bytes */
//#define MBEDTLS_CTR_DRBG_MAX_REQUEST             1024 /**< Maximum number of requested bytes per call */
//#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT           384 /**< Maximum size of (re)seed buffer */
//#define MBEDTLS_CTR_DRBG_USE_128_BIT_KEY              /**< Use 128-bit key for CTR_DRBG - may reduce security (see ctr_drbg.h) */

/* HMAC_DRBG options */
//#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL   10000 /**< Interval before reseed is performed by default */
//#define MBEDTLS_HMAC_DRBG_MAX_INPUT           256 /**< Maximum number of additional input bytes */
//#define MBEDTLS_HMAC_DRBG_MAX_REQUEST        1024 /**< Maximum number of requested bytes per call */
//#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT      384 /**< Maximum size of (re)seed buffer */

/* ECP options */
//#define MBEDTLS_ECP_MAX_BITS             384 /**< Maximum bit size of groups */
//#define MBEDTLS_ECP_WINDOW_SIZE            2 /**< Maximum window size used */
//#define MBEDTLS_ECP_FIXED_POINT_OPTIM      0 /**< Enable fixed-point speed-up */

/* Entropy options */
//#define MBEDTLS_ENTROPY_MAX_SOURCES                20 /**< Maximum number of sources supported */
//#define MBEDTLS_ENTROPY_MAX_GATHER                128 /**< Maximum amount requested from entropy sources */
//#define MBEDTLS_ENTROPY_MIN_HARDWARE               32 /**< Default minimum number of bytes required for the hardware entropy source mbedtls_hardware_poll() before entropy is released */

/* Memory buffer allocator options */
//#define MBEDTLS_MEMORY_ALIGN_MULTIPLE      4 /**< Align on multiples of this value */

/* Platform options */
//#define MBEDTLS_PLATFORM_STD_MEM_HDR   <stdlib.h> /**< Header to include if MBEDTLS_PLATFORM_NO_STD_FUNCTIONS is defined. Don't define if no header is needed. */
//#define MBEDTLS_PLATFORM_STD_CALLOC        calloc /**< Default allocator to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_FREE            free /**< Default free to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_EXIT            exit /**< Default exit to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_TIME            time /**< Default time to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
//#define MBEDTLS_PLATFORM_STD_FPRINTF      fprintf /**< Default fprintf to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_PRINTF        printf /**< Default printf to use, can be undefined */
/* Note: your snprintf must correclty zero-terminate the buffer! */
//#define MBEDTLS_PLATFORM_STD_SNPRINTF    snprintf /**< Default snprintf to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS       0 /**< Default exit value to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE       1 /**< Default exit value to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_NV_SEED_READ   mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE  mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */
//#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE  "seedfile" /**< Seed file to read/write with default implementation */

/* To Use Function Macros MBEDTLS_PLATFORM_C must be enabled */
/* MBEDTLS_PLATFORM_XXX_MACRO and MBEDTLS_PLATFORM_XXX_ALT cannot both be defined */
//#define MBEDTLS_PLATFORM_CALLOC_MACRO        calloc /**< Default allocator macro to use, can be undefined */
//#define MBEDTLS_PLATFORM_FREE_MACRO            free /**< Default free macro to use, can be undefined */
//#define MBEDTLS_PLATFORM_EXIT_MACRO            exit /**< Default exit macro to use, can be undefined */
//#define MBEDTLS_PLATFORM_TIME_MACRO            time /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
//#define MBEDTLS_PLATFORM_TIME_TYPE_MACRO       time_t /**< Default time macro to use, can be undefined. MBEDTLS_HAVE_TIME must be enabled */
//#define MBEDTLS_PLATFORM_FPRINTF_MACRO      fprintf /**< Default fprintf macro to use, can be undefined */
//#define MBEDTLS_PLATFORM_PRINTF_MACRO        printf /**< Default printf macro to use, can be undefined */
/* Note: your snprintf must correclty zero-terminate the buffer! */
//#define MBEDTLS_PLATFORM_SNPRINTF_MACRO    snprintf /**< Default snprintf macro to use, can be undefined */
//#define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO   mbedtls_platform_std_nv_seed_read /**< Default nv_seed_read function to use, can be undefined */
//#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO  mbedtls_platform_std_nv_seed_write /**< Default nv_seed_write function to use, can be undefined */

/**
* \brief       This macro is invoked by the library when an invalid parameter
*              is detected that is only checked with MBEDTLS_CHECK_PARAMS
*              (see the documentation of that option for context).
*
*              When you leave this undefined here, a default definition is
*              provided that invokes the function mbedtls_param_failed(),
*              which is declared in platform_util.h for the benefit of the
*              library, but that you need to define in your application.
*
*              When you define this here, this replaces the default
*              definition in platform_util.h (which no longer declares the
*              function mbedtls_param_failed()) and it is your responsibility
*              to make sure this macro expands to something suitable (in
*              particular, that all the necessary declarations are visible
*              from within the library - you can ensure that by providing
*              them in this file next to the macro definition).
*
*              Note that you may define this macro to expand to nothing, in
*              which case you don't have to worry about declarations or
*              definitions. However, you will then be notified about invalid
*              parameters only in non-void functions, and void function will
*              just silently return early on invalid parameters, which
*              partially negates the benefits of enabling
*              #MBEDTLS_CHECK_PARAMS in the first place, so is discouraged.
*
* \param cond  The expression that should evaluate to true, but doesn't.
*/
//#define MBEDTLS_PARAM_FAILED( cond )               assert( cond )

/* SSL Cache options */
//#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT       86400 /**< 1 day  */
//#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES      50 /**< Maximum entries in cache */

/* SSL options */

/** \def MBEDTLS_SSL_MAX_CONTENT_LEN
*
* Maximum length (in bytes) of incoming and outgoing plaintext fragments.
*
* This determines the size of both the incoming and outgoing TLS I/O buffers
* in such a way that both are capable of holding the specified amount of
* plaintext data, regardless of the protection mechanism used.
*
* To configure incoming and outgoing I/O buffers separately, use
* #MBEDTLS_SSL_IN_CONTENT_LEN and #MBEDTLS_SSL_OUT_CONTENT_LEN,
* which overwrite the value set by this option.
*
* \note When using a value less than the default of 16KB on the client, it is
*       recommended to use the Maximum Fragment Length (MFL) extension to
*       inform the server about this limitation. On the server, there
*       is no supported, standardized way of informing the client about
*       restriction on the maximum size of incoming messages, and unless
*       the limitation has been communicated by other means, it is recommended
*       to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN
*       while keeping the default value of 16KB for the incoming buffer.
*
* Uncomment to set the maximum plaintext size of both
* incoming and outgoing I/O buffers.
*/
//#define MBEDTLS_SSL_MAX_CONTENT_LEN             16384
#define MBEDTLS_SSL_MAX_CONTENT_LEN             7384

/** \def MBEDTLS_SSL_IN_CONTENT_LEN
*
* Maximum length (in bytes) of incoming plaintext fragments.
*
* This determines the size of the incoming TLS I/O buffer in such a way
* that it is capable of holding the specified amount of plaintext data,
* regardless of the protection mechanism used.
*
* If this option is undefined, it inherits its value from
* #MBEDTLS_SSL_MAX_CONTENT_LEN.
*
* \note When using a value less than the default of 16KB on the client, it is
*       recommended to use the Maximum Fragment Length (MFL) extension to
*       inform the server about this limitation. On the server, there
*       is no supported, standardized way of informing the client about
*       restriction on the maximum size of incoming messages, and unless
*       the limitation has been communicated by other means, it is recommended
*       to only change the outgoing buffer size #MBEDTLS_SSL_OUT_CONTENT_LEN
*       while keeping the default value of 16KB for the incoming buffer.
*
* Uncomment to set the maximum plaintext size of the incoming I/O buffer
* independently of the outgoing I/O buffer.
*/
//#define MBEDTLS_SSL_IN_CONTENT_LEN              16384

/** \def MBEDTLS_SSL_OUT_CONTENT_LEN
*
* Maximum length (in bytes) of outgoing plaintext fragments.
*
* This determines the size of the outgoing TLS I/O buffer in such a way
* that it is capable of holding the specified amount of plaintext data,
* regardless of the protection mechanism used.
*
* If this option undefined, it inherits its value from
* #MBEDTLS_SSL_MAX_CONTENT_LEN.
*
* It is possible to save RAM by setting a smaller outward buffer, while keeping
* the default inward 16384 byte buffer to conform to the TLS specification.
*
* The minimum required outward buffer size is determined by the handshake
* protocol's usage. Handshaking will fail if the outward buffer is too small.
* The specific size requirement depends on the configured ciphers and any
* certificate data which is sent during the handshake.
*
* Uncomment to set the maximum plaintext size of the outgoing I/O buffer
* independently of the incoming I/O buffer.
*/
//#define MBEDTLS_SSL_OUT_CONTENT_LEN             16384

/** \def MBEDTLS_SSL_DTLS_MAX_BUFFERING
*
* Maximum number of heap-allocated bytes for the purpose of
* DTLS handshake message reassembly and future message buffering.
*
* This should be at least 9/8 * MBEDTLSSL_IN_CONTENT_LEN
* to account for a reassembled handshake message of maximum size,
* together with its reassembly bitmap.
*
* A value of 2 * MBEDTLS_SSL_IN_CONTENT_LEN (32768 by default)
* should be sufficient for all practical situations as it allows
* to reassembly a large handshake message (such as a certificate)
* while buffering multiple smaller handshake messages.
*
*/
//#define MBEDTLS_SSL_DTLS_MAX_BUFFERING             32768

//#define MBEDTLS_SSL_DEFAULT_TICKET_LIFETIME     86400 /**< Lifetime of session tickets (if enabled) */
//#define MBEDTLS_PSK_MAX_LEN               32 /**< Max size of TLS pre-shared keys, in bytes (default 256 bits) */
//#define MBEDTLS_SSL_COOKIE_TIMEOUT        60 /**< Default expiration delay of DTLS cookies, in seconds if HAVE_TIME, or in number of cookies issued */

/**
* Complete list of ciphersuites to use, in order of preference.
*
* \warning No dependency checking is done on that field! This option can only
* be used to restrict the set of available ciphersuites. It is your
* responsibility to make sure the needed modules are active.
*
* Use this to save a few hundred bytes of ROM (default ordering of all
* available ciphersuites) and a few to a few hundred bytes of RAM.
*
* The value below is only an example, not the default.
*/
#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_RSA_WITH_AES_256_CBC_SHA256

/* X509 options */
//#define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8   /**< Maximum number of intermediate CAs in a verification chain. */
//#define MBEDTLS_X509_MAX_FILE_PATH_LEN     512 /**< Maximum length of a path/filename string in bytes including the null terminator character ('\0'). */

/**
* Allow SHA-1 in the default TLS configuration for certificate signing.
* Without this build-time option, SHA-1 support must be activated explicitly
* through mbedtls_ssl_conf_cert_profile. Turning on this option is not
* recommended because of it is possible to generate SHA-1 collisions, however
* this may be safe for legacy infrastructure where additional controls apply.
*
* \warning   SHA-1 is considered a weak message digest and its use constitutes
*            a security risk. If possible, we recommend avoiding dependencies
*            on it, and considering stronger message digests instead.
*
*/
// #define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_CERTIFICATES

/**
* Allow SHA-1 in the default TLS configuration for TLS 1.2 handshake
* signature and ciphersuite selection. Without this build-time option, SHA-1
* support must be activated explicitly through mbedtls_ssl_conf_sig_hashes.
* The use of SHA-1 in TLS <= 1.1 and in HMAC-SHA-1 is always allowed by
* default. At the time of writing, there is no practical attack on the use
* of SHA-1 in handshake signatures, hence this option is turned on by default
* to preserve compatibility with existing peers, but the general
* warning applies nonetheless:
*
* \warning   SHA-1 is considered a weak message digest and its use constitutes
*            a security risk. If possible, we recommend avoiding dependencies
*            on it, and considering stronger message digests instead.
*
*/
//#define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE

/**
* Uncomment the macro to let mbed TLS use your alternate implementation of
* mbedtls_platform_zeroize(). This replaces the default implementation in
* platform_util.c.
*
* mbedtls_platform_zeroize() is a widely used function across the library to
* zero a block of memory. The implementation is expected to be secure in the
* sense that it has been written to prevent the compiler from removing calls
* to mbedtls_platform_zeroize() as part of redundant code elimination
* optimizations. However, it is difficult to guarantee that calls to
* mbedtls_platform_zeroize() will not be optimized by the compiler as older
* versions of the C language standards do not provide a secure implementation
* of memset(). Therefore, MBEDTLS_PLATFORM_ZEROIZE_ALT enables users to
* configure their own implementation of mbedtls_platform_zeroize(), for
* example by using directives specific to their compiler, features from newer
* C standards (e.g using memset_s() in C11) or calling a secure memset() from
* their system (e.g explicit_bzero() in BSD).
*/
//#define MBEDTLS_PLATFORM_ZEROIZE_ALT

/**
* Uncomment the macro to let Mbed TLS use your alternate implementation of
* mbedtls_platform_gmtime_r(). This replaces the default implementation in
* platform_util.c.
*
* gmtime() is not a thread-safe function as defined in the C standard. The
* library will try to use safer implementations of this function, such as
* gmtime_r() when available. However, if Mbed TLS cannot identify the target
* system, the implementation of mbedtls_platform_gmtime_r() will default to
* using the standard gmtime(). In this case, calls from the library to
* gmtime() will be guarded by the global mutex mbedtls_threading_gmtime_mutex
* if MBEDTLS_THREADING_C is enabled. We recommend that calls from outside the
* library are also guarded with this mutex to avoid race conditions. However,
* if the macro MBEDTLS_PLATFORM_GMTIME_R_ALT is defined, Mbed TLS will
* unconditionally use the implementation for mbedtls_platform_gmtime_r()
* supplied at compile time.
*/
//#define MBEDTLS_PLATFORM_GMTIME_R_ALT

/* \} name SECTION: Customisation configuration options */

/* Target and application specific configurations
*
* Allow user to override any previous default.
*
*/
#if defined(MBEDTLS_USER_CONFIG_FILE)
#include MBEDTLS_USER_CONFIG_FILE
#endif

#include "mbedtls/check_config.h"

#endif /* MBEDTLS_CONFIG_H */




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