Modified mbed TLS headers for AES functionality only to reduce build size

Dependents:   BLE_Gateway_Linker_fix BLE_Gateway

Fork of mbedtls by sandbox

Files at this revision

API Documentation at this revision

Comitter:
electronichamsters
Date:
Mon Jul 10 04:00:25 2017 +0000
Parent:
4:bef26f687287
Commit message:
working gateway

Changed in this revision

mbedtls/check_config.h Show annotated file Show diff for this revision Revisions of this file
mbedtls/config.h Show annotated file Show diff for this revision Revisions of this file
diff -r bef26f687287 -r f09f5ed830ca mbedtls/check_config.h
--- a/mbedtls/check_config.h	Thu Apr 07 11:11:18 2016 +0100
+++ b/mbedtls/check_config.h	Mon Jul 10 04:00:25 2017 +0000
@@ -51,10 +51,12 @@
 #endif
 #endif /* _WIN32 */
 
+/*
 #if defined(TARGET_LIKE_MBED) && \
     ( defined(MBEDTLS_NET_C) || defined(MBEDTLS_TIMING_C) )
 #error "The NET and TIMING modules are not available for mbed OS - please use the network and timing functions provided by mbed OS"
 #endif
+*/
 
 #if defined(MBEDTLS_DEPRECATED_WARNING) && \
     !defined(__GNUC__) && !defined(__clang__)
diff -r bef26f687287 -r f09f5ed830ca mbedtls/config.h
--- a/mbedtls/config.h	Thu Apr 07 11:11:18 2016 +0100
+++ b/mbedtls/config.h	Mon Jul 10 04:00:25 2017 +0000
@@ -1,7 +1,5 @@
-/**
- * \file config.h
- *
- * \brief Configuration options (set of defines)
+/*
+ *  Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
  *
  *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
  *  SPDX-License-Identifier: Apache-2.0
@@ -20,2492 +18,68 @@
  *
  *  This file is part of mbed TLS (https://tls.mbed.org)
  */
-
 /*
- * This set of compile-time options may be used to enable
- * or disable features selectively, and reduce the global
- * memory footprint.
+ * Minimal configuration for TLS 1.2 with PSK and AES-CCM ciphersuites
+ * Distinguishing features:
+ * - no bignum, no PK, no X509
+ * - fully modern and secure (provided the pre-shared keys have high entropy)
+ * - very low record overhead with CCM-8
+ * - optimized for low RAM usage
+ *
+ * See README.txt for usage instructions.
  */
 #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/timing.c
- *      library/padlock.c
- *      include/mbedtls/bn_mul.h
- *
- * Comment to disable the use of assembly code.
- */
-#define MBEDTLS_HAVE_ASM
-
-/**
- * \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
- *
- * Comment if your system does not support time functions
- */
-#define MBEDTLS_HAVE_TIME
-
-/**
- * \def MBEDTLS_HAVE_TIME_DATE
- *
- * System has time.h and time(), gmtime() and the clock is correct.
- * 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.
- */
-#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_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!
- *
- * Uncomment a macro to enable alternate implementation of specific base
- * platform function
- */
-//#define MBEDTLS_PLATFORM_EXIT_ALT
-//#define MBEDTLS_PLATFORM_FPRINTF_ALT
-//#define MBEDTLS_PLATFORM_PRINTF_ALT
-//#define MBEDTLS_PLATFORM_SNPRINTF_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
-
-/* \} 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__MODULE_NAME__ALT
- *
- * Uncomment a macro to let mbed TLS use your alternate core implementation of
- * a symmetric crypto 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.
- */
-//#define MBEDTLS_AES_ALT
-//#define MBEDTLS_ARC4_ALT
-//#define MBEDTLS_BLOWFISH_ALT
-//#define MBEDTLS_CAMELLIA_ALT
-//#define MBEDTLS_DES_ALT
-//#define MBEDTLS_XTEA_ALT
-//#define MBEDTLS_MD2_ALT
-//#define MBEDTLS_MD4_ALT
-//#define MBEDTLS_MD5_ALT
-//#define MBEDTLS_RIPEMD160_ALT
-//#define MBEDTLS_SHA1_ALT
-//#define MBEDTLS_SHA256_ALT
-//#define MBEDTLS_SHA512_ALT
-
-/**
- * \def 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: 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.
- */
-//#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
-
-/**
- * \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
- *
- * Store the AES tables in ROM.
- *
- * Uncomment this macro to store the AES tables in ROM.
- */
-//#define MBEDTLS_AES_ROM_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_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_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
- */
-//#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_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
-#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
-//#define MBEDTLS_ECP_DP_BP256R1_ENABLED
-//#define MBEDTLS_ECP_DP_BP384R1_ENABLED
-//#define MBEDTLS_ECP_DP_BP512R1_ENABLED
-#define MBEDTLS_ECP_DP_CURVE25519_ENABLED
-
-/**
- * \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_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
- */
-//#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
+/* System support */
+//#define MBEDTLS_HAVE_TIME /* Optionally used in Hello messages */
+/* Other MBEDTLS_HAVE_XXX flags irrelevant for this configuration */
 
-/**
- * \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
- */
-//#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
-
-/**
- * \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_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
-
-/**
- * \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
-
-/**
- * \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_AEAD_RANDOM_IV
- *
- * Generate a random IV rather than using the record sequence number as a
- * nonce for ciphersuites using and AEAD algorithm (GCM or CCM).
- *
- * Using the sequence number is generally recommended.
- *
- * Uncomment this macro to always use random IVs with AEAD ciphersuites.
- */
-//#define MBEDTLS_SSL_AEAD_RANDOM_IV
-
-/**
- * \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_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
- *
- * Disable 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.
- */
-#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
- */
+/* mbed TLS feature support */
+#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED
 #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_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.
- *
- * 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/ssl_tls.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.
- */
+/* mbed TLS modules */
 #define MBEDTLS_AES_C
-
-/**
- * \def MBEDTLS_ARC4_C
- *
- * Enable the ARCFOUR stream cipher.
- *
- * Module:  library/arc4.c
- * Caller:  library/ssl_tls.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
- */
-//#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/mbedtls_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/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/ssl_tls.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_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_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_CTR_DRBG_C
- *
- * Enable the CTR_DRBG AES-256-based random generator.
- *
- * Module:  library/ctr_drbg.c
- * Caller:
- *
- * Requires: MBEDTLS_AES_C
- *
- * This module provides the CTR_DRBG AES-256 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/ssl_tls.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.
- */
-//#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
- */
-//#define MBEDTLS_DHM_C
-
-/**
- * \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_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_MD_C
- *
- * Enable the generic message digest layer.
- *
- * Module:  library/mbedtls_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/mbedtls_md2.c
- * Caller:
- *
- * Uncomment to enable support for (rare) MD2-signed X.509 certs.
- */
-//#define MBEDTLS_MD2_C
-
-/**
- * \def MBEDTLS_MD4_C
- *
- * Enable the MD4 hash algorithm.
- *
- * Module:  library/mbedtls_md4.c
- * Caller:
- *
- * Uncomment to enable support for (rare) MD4-signed X.509 certs.
- */
-//#define MBEDTLS_MD4_C
-
-/**
- * \def MBEDTLS_MD5_C
- *
- * Enable the MD5 hash algorithm.
- *
- * Module:  library/mbedtls_md5.c
- * Caller:  library/mbedtls_md.c
- *          library/pem.c
- *          library/ssl_tls.c
- *
- * This module is required for SSL/TLS and X.509.
- * PEM_PARSE uses MD5 for decrypting encrypted keys.
- */
-//#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/IP networking routines.
- *
- * Module:  library/net.c
- *
- * This module provides TCP/IP networking routines.
- */
-//#define MBEDTLS_NET_C
-
-/**
- * \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/mbedtls_x509_crl.c
- *          library/mbedtls_x509_crt.c
- *          library/mbedtls_x509_csr.c
- *          library/x509write_crt.c
- *          library/mbedtls_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/mbedtls_x509_crl.c
- *          library/mbedtls_x509_crt.c
- *          library/mbedtls_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/mbedtls_x509write_csr.c
- *
- * Requires: MBEDTLS_BASE64_C
- *
- * This modules adds support for encoding / writing PEM files.
- */
-//#define MBEDTLS_PEM_WRITE_C
-
-/**
- * \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/mbedtls_x509_crt.c
- *          library/mbedtls_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_RIPEMD160_C
- *
- * Enable the RIPEMD-160 hash algorithm.
- *
- * Module:  library/mbedtls_ripemd160.c
- * Caller:  library/mbedtls_md.c
- *
- */
-//#define MBEDTLS_RIPEMD160_C
-
-/**
- * \def MBEDTLS_RSA_C
- *
- * Enable the RSA public-key cryptosystem.
- *
- * Module:  library/rsa.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/mbedtls_sha1.c
- * Caller:  library/mbedtls_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 and SHA1-signed certificates.
- */
-//#define MBEDTLS_SHA1_C
-
-/**
- * \def MBEDTLS_SHA256_C
- *
- * Enable the SHA-224 and SHA-256 cryptographic hash algorithms.
- *
- * Module:  library/mbedtls_sha256.c
- * Caller:  library/entropy.c
- *          library/mbedtls_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_NET_C     //tsai:  net needed for just AES ecb decryption
 #define MBEDTLS_SHA256_C
-
-/**
- * \def MBEDTLS_SHA512_C
- *
- * Enable the SHA-384 and SHA-512 cryptographic hash algorithms.
- *
- * Module:  library/mbedtls_sha512.c
- * Caller:  library/entropy.c
- *          library/mbedtls_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.
- *
- * 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 portable timing interface.
- *
- * 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
+/* Save RAM at the expense of ROM */
+#define MBEDTLS_AES_ROM_TABLES
 
-/**
- * \def MBEDTLS_X509_USE_C
- *
- * Enable X.509 core for using certificates.
- *
- * Module:  library/x509.c
- * Caller:  library/mbedtls_x509_crl.c
- *          library/mbedtls_x509_crt.c
- *          library/mbedtls_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/mbedtls_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/mbedtls_x509_crl.c
- * Caller:  library/mbedtls_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/mbedtls_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
+/* Save some RAM by adjusting to your exact needs */
+#define MBEDTLS_PSK_MAX_LEN    16 /* 128-bits keys are generally enough */
 
-/**
- * \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).
- * \{
+/*
+ * You should adjust this to the exact number of sources you're using: default
+ * is the "platform_entropy_poll" source, but you may want to add other ones
+ * Minimum is 2 for the entropy test suite.
  */
-
-/* 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 */
-
-/* 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             521 /**< Maximum bit size of groups */
-//#define MBEDTLS_ECP_WINDOW_SIZE            6 /**< Maximum window size used */
-//#define MBEDTLS_ECP_FIXED_POINT_OPTIM      1 /**< 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 */
-
-/* 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_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 */
-
-/* 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_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 */
-
-/* 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 */
-//#define MBEDTLS_SSL_MAX_CONTENT_LEN             16384 /**< Maxium fragment length in bytes, determines the size of each of the two internal I/O buffers */
-//#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_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256
-
-/* X509 options */
-//#define MBEDTLS_X509_MAX_INTERMEDIATE_CA   8   /**< Maximum number of intermediate CAs in a verification chain. */
-
-/* \} name SECTION: Module configuration options */
-
-#if defined(TARGET_LIKE_MBED)
-#include "mbedtls/target_config.h"
-#endif
+#define MBEDTLS_ENTROPY_MAX_SOURCES 2
 
 /*
- * Allow user to override any previous default.
- *
- * Use two macro names for that, as:
- * - with yotta the prefix YOTTA_CFG_ is forced
- * - without yotta is looks weird to have a YOTTA prefix.
+ * Use only CCM_8 ciphersuites, and
+ * save ROM and a few bytes of RAM by specifying our own ciphersuite list
  */
-#if defined(YOTTA_CFG_MBEDTLS_USER_CONFIG_FILE)
-#include YOTTA_CFG_MBEDTLS_USER_CONFIG_FILE
-#elif defined(MBEDTLS_USER_CONFIG_FILE)
-#include MBEDTLS_USER_CONFIG_FILE
-#endif
+#define MBEDTLS_SSL_CIPHERSUITES                        \
+        MBEDTLS_TLS_PSK_WITH_AES_256_CCM_8,             \
+        MBEDTLS_TLS_PSK_WITH_AES_128_CCM_8
 
-#include "check_config.h"
+/*
+ * Save RAM at the expense of interoperability: do this only if you control
+ * both ends of the connection!  (See comments in "mbedtls/ssl.h".)
+ * The optimal size here depends on the typical size of records.
+ */
+#define MBEDTLS_SSL_MAX_CONTENT_LEN             512
 
-#endif /* MBEDTLS_CONFIG_H */
+#include "mbedtls/check_config.h"
+
+#endif /* MBEDTLS_CONFIG_H */
\ No newline at end of file