wolfssl/examples/configs/user_settings_espressif.h

1140 lines
39 KiB
C

/* wolfssl-component include/user_settings.h
*
* Copyright (C) 2006-2025 wolfSSL Inc.
*
* This file is part of wolfSSL.
*
* wolfSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* wolfSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1335, USA
*/
#define WOLFSSL_ESPIDF_COMPONENT_VERSION 0x01
/* Examples such as test and benchmark are known to cause watchdog timeouts.
* Note this is often set in project Makefile:
* CFLAGS += -DWOLFSSL_ESP_NO_WATCHDOG=1 */
#define WOLFSSL_ESP_NO_WATCHDOG 1
/* The Espressif project config file. See also sdkconfig.defaults */
#include "sdkconfig.h"
/* This user_settings.h is for Espressif ESP-IDF
*
* Standardized wolfSSL Espressif ESP32 + ESP8266 user_settings.h V5.7.0-1
*
* Do not include any wolfssl headers here.
*
* When editing this file:
* ensure all examples match. The template example is the reference.
*/
/* Naming convention: (see also esp32-crypt.h for the reference source).
*
* CONFIG_
* This prefix indicates the setting came from the sdkconfig / Kconfig.
*
* May or may not be related to wolfSSL.
*
* The name after this prefix must exactly match that in the Kconfig file.
*
* WOLFSSL_
* Typical of many, but not all wolfSSL macro names.
*
* Applies to all wolfSSL products such as wolfSSH, wolfMQTT, etc.
*
* May or may not have a corresponding sdkconfig / Kconfig control.
*
* ESP_WOLFSSL_
* These are NOT valid wolfSSL macro names. These are names only used in
* the ESP-IDF Kconfig files. When parsed, they will have a "CONFIG_"
* suffix added. See next section.
*
* CONFIG_ESP_WOLFSSL_
* This is a wolfSSL-specific macro that has been defined in the ESP-IDF
* via the sdkconfig / menuconfig. Any text after this prefix should
* exactly match an existing wolfSSL macro name.
*
* Applies to all wolfSSL products such as wolfSSH, wolfMQTT, etc.
*
* These macros may also be specific to only the project or environment,
* and possibly not used anywhere else in the wolfSSL libraries.
*/
/* The Espressif sdkconfig will have chipset info.
**
** Some possible values:
**
** CONFIG_IDF_TARGET_ESP32
** CONFIG_IDF_TARGET_ESP32S2
** CONFIG_IDF_TARGET_ESP32S3
** CONFIG_IDF_TARGET_ESP32C3
** CONFIG_IDF_TARGET_ESP32C6
*/
#undef WOLFSSL_ESPIDF
#define WOLFSSL_ESPIDF
/* Test various user_settings between applications by selecting example apps
* in `idf.py menuconfig` for Example wolfSSL Configuration settings: */
/* Turn on messages that are useful to see only in examples. */
#define WOLFSSL_EXAMPLE_VERBOSITY
/* Paths can be long, ensure the entire value printed during debug */
#define WOLFSSL_MAX_ERROR_SZ 500
/* wolfSSL Examples: set macros used in example applications.
*
* These Settings NOT available in ESP-IDF (e.g. esp-tls)
*
* Any settings needed by ESP-IDF components should be explicitly set,
* and not by these example-specific settings via CONFIG_WOLFSSL_EXAMPLE_n
*
* ESP-IDF settings should be Kconfig "CONFIG_[name]" values when possible. */
#if defined(CONFIG_WOLFSSL_EXAMPLE_NAME_TEMPLATE)
/* See https://github.com/wolfSSL/wolfssl/tree/master/IDE/Espressif/ESP-IDF/examples/template */
/* We don't use WiFi, so don't compile in the esp-sdk-lib WiFi helpers: */
/* #define USE_WOLFSSL_ESP_SDK_WIFI */
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_TEST)
/* See https://github.com/wolfSSL/wolfssl/tree/master/IDE/Espressif/ESP-IDF/examples/wolfssl_test */
/* We don't use WiFi, so don't compile in the esp-sdk-lib WiFi helpers: */
/* #define USE_WOLFSSL_ESP_SDK_WIFI */
#define TEST_ESPIDF_ALL_WOLFSSL
#define HAVE_HKDF
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_BENCHMARK)
/* See https://github.com/wolfSSL/wolfssl/tree/master/IDE/Espressif/ESP-IDF/examples/wolfssl_benchmark */
/* We don't use WiFi, so don't compile in the esp-sdk-lib WiFi helpers: */
/* #define USE_WOLFSSL_ESP_SDK_WIFI */
#define WOLFSSL_BENCHMARK_FIXED_UNITS_KB
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_TLS_CLIENT)
/* See https://github.com/wolfSSL/wolfssl/tree/master/IDE/Espressif/ESP-IDF/examples/wolfssl_client */
#define USE_WOLFSSL_ESP_SDK_WIFI
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_TLS_SERVER)
/* See https://github.com/wolfSSL/wolfssl/tree/master/IDE/Espressif/ESP-IDF/examples/wolfssl_server */
#define USE_WOLFSSL_ESP_SDK_WIFI
/* wolfSSH Examples */
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_WOLFSSH_TEMPLATE)
/* See https://github.com/wolfSSL/wolfssh/tree/master/ide/Espressif/ESP-IDF/examples/wolfssh_template */
#define USE_WOLFSSL_ESP_SDK_WIFI
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_WOLFSSH_ECHOSERVER)
/* See https://github.com/wolfSSL/wolfssh/tree/master/ide/Espressif/ESP-IDF/examples/wolfssh_echoserver */
#define USE_WOLFSSL_ESP_SDK_WIFI
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_ESP32_SSH_SERVER)
/* See https://github.com/wolfSSL/wolfssh-examples/tree/main/Espressif/ESP32/ESP32-SSH-Server */
#define USE_WOLFSSL_ESP_SDK_WIFI
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_ESP8266_SSH_SERVER)
/* See https://github.com/wolfSSL/wolfssh-examples/tree/main/Espressif/ESP8266/ESP8266-SSH-Server */
#define USE_WOLFSSL_ESP_SDK_WIFI
/* wolfMQTT Examples */
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_WOLFMQTT_TEMPLATE)
/* See https://github.com/wolfSSL/wolfMQTT/tree/master/IDE/Espressif/ESP-IDF/examples/wolfmqtt_template */
#define USE_WOLFSSL_ESP_SDK_WIFI
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_WOLFMQTT_AWS_IOT_MQTT)
/* See https://github.com/wolfSSL/wolfMQTT/tree/master/IDE/Espressif/ESP-IDF/examples/AWS_IoT_MQTT */
#define USE_WOLFSSL_ESP_SDK_WIFI
/* wolfTPM Examples */
#elif defined(CONFIG_WOLFTPM_EXAMPLE_NAME_ESPRESSIF)
/* See https://github.com/wolfSSL/wolfTPM/tree/master/IDE/Espressif */
#define USE_WOLFSSL_ESP_SDK_WIFI
/* Apple HomeKit Examples */
#elif defined(CONFIG_WOLFSSL_APPLE_HOMEKIT)
/* See https://github.com/AchimPieters/esp32-homekit-demo */
/* no example selected */
#elif defined(CONFIG_WOLFSSL_EXAMPLE_NAME_NONE)
/* We'll assume the app needs to use wolfSSL sdk lib function */
#define USE_WOLFSSL_ESP_SDK_WIFI
/* Other applications detected by cmake */
#elif defined(APP_ESP_HTTP_CLIENT_EXAMPLE)
/* The wolfSSL Version of the client example */
#if defined(CONFIG_IDF_TARGET_ESP32S2) || defined(CONFIG_IDF_TARGET_ESP32C2)
/* Less memory available, so smaller key sizes: */
#define FP_MAX_BITS (4096 * 2)
#else
#define FP_MAX_BITS (8192 * 2)
#endif
#define HAVE_ALPN
#define HAVE_SNI
#define OPENSSL_EXTRA_X509_SMALL
#define HAVE_TLS_EXTENSIONS
#define HAVE_SUPPORTED_CURVES
#define OPENSSL_EXTRA
#ifndef WOLFSSL_ALWAYS_VERIFY_CB
#define WOLFSSL_ALWAYS_VERIFY_CB
#endif
#ifndef WOLFSSL_VERIFY_CB_ALL_CERTS
#define WOLFSSL_VERIFY_CB_ALL_CERTS
#endif
#ifndef KEEP_PEER_CERT
#define KEEP_PEER_CERT
#endif
#elif defined(APP_ESP_HTTP_CLIENT)
/* The ESP-IDF Version */
#define FP_MAX_BITS (8192 * 2)
#define HAVE_ALPN
#define HAVE_SNI
#define OPENSSL_EXTRA_X509_SMALL
#define HAVE_TLS_EXTENSIONS
#define HAVE_SUPPORTED_CURVES
#define OPENSSL_EXTRA
#ifndef WOLFSSL_ALWAYS_VERIFY_CB
#define WOLFSSL_ALWAYS_VERIFY_CB
#endif
#ifndef WOLFSSL_VERIFY_CB_ALL_CERTS
#define WOLFSSL_VERIFY_CB_ALL_CERTS
#endif
#ifndef KEEP_PEER_CERT
#define KEEP_PEER_CERT
#endif
#else
#ifdef WOLFSSL_ESPIDF
/* #warning "App config undetected" */
#endif
/* the code is older or does not have application name defined. */
#endif /* Example wolfSSL Configuration app settings */
/* Optional MLKEM (Kyber Post Quantum) */
/* ./configure --enable-mlkem */
/* See Kconfig / menuconfig ESP_WOLFSSL_ENABLE_MLKEM */
#ifdef CONFIG_ESP_WOLFSSL_ENABLE_MLKEM
/* Kyber typically needs a minimum 10K stack */
#define WOLFSSL_HAVE_MLKEM
#define WOLFSSL_WC_MLKEM
#define WOLFSSL_SHAKE128
#define WOLFSSL_SHAKE256
/* Old code points to keep compatibility with Kyber Round 3. */
/* ./configure --enable-kyber=all --enable-experimental */
#if defined(CONFIG_WOLFSSL_ENABLE_KYBER)
#define WOLFSSL_MLKEM_KYBER
#define WOLFSSL_EXPERIMENTAL_SETTINGS
#endif
#if defined(CONFIG_IDF_TARGET_ESP8266)
/* With limited RAM, we'll disable some of the Kyber sizes: */
#define WOLFSSL_NO_KYBER1024
#define WOLFSSL_NO_KYBER768
#define WOLFSSL_NO_ML_KEM_1024
#define WOLFSSL_NO_ML_KEM_768
#define NO_SESSION_CACHE
#else
/* Only needed for older wolfssl versions, see mlkem.h */
#define WOLFSSL_KYBER1024
/* optional alternative sizes: */
/* #define WOLFSSL_KYBER768 */
/* #define WOLFSSL_KYBER512 */
/* -- or disable a specific one: */
/* #define WOLFSSL_NO_ML_KEM_1024 */
/* #define WOLFSSL_NO_ML_KEM_768 */
/* #define WOLFSSL_NO_ML_KEM_512 */
#endif
#endif
/* Enable AES for all examples */
#ifdef NO_AES
#warning "Found NO_AES, wolfSSL AES Cannot be enabled. Check config."
#else
#define WOLFSSL_AES
#define WOLFSSL_AES_COUNTER
/* Typically only needed for wolfssl_test, see docs. */
#define WOLFSSL_AES_DIRECT
#endif
/* Pick a cert buffer size: */
/* #define USE_CERT_BUFFERS_2048 */
/* #define USE_CERT_BUFFERS_1024 */
#define USE_CERT_BUFFERS_2048
/* The Espressif sdkconfig will have chipset info.
**
** Some possible values:
**
** CONFIG_IDF_TARGET_ESP32
** CONFIG_IDF_TARGET_ESP32S2
** CONFIG_IDF_TARGET_ESP32S3
** CONFIG_IDF_TARGET_ESP32C3
** CONFIG_IDF_TARGET_ESP32C6
*/
/* Optionally enable Apple HomeKit from compiler directive or Kconfig setting */
#if defined(WOLFSSL_APPLE_HOMEKIT) || defined(CONFIG_WOLFSSL_APPLE_HOMEKIT)
/* SRP is known to need 8K; slow on some devices */
#define FP_MAX_BITS (8192 * 2)
#define WOLFCRYPT_HAVE_SRP
#define HAVE_CHACHA
#define HAVE_POLY1305
#define WOLFSSL_BASE64_ENCODE
#endif /* Apple HomeKit settings */
/* Used by ESP-IDF components: */
#if defined(CONFIG_ESP_TLS_USING_WOLFSSL)
/* The ESP-TLS */
#ifndef FP_MAX_BITS
#if defined(CONFIG_IDF_TARGET_ESP32C2) || \
defined(CONFIG_IDF_TARGET_ESP8684) || \
defined(CONFIG_IDF_TARGET_ESP8266)
/* Optionally set smaller size here */
#define FP_MAX_BITS MIN_FFDHE_FP_MAX_BITS
#else
#define FP_MAX_BITS (4096 * 2)
#endif
#endif
#define HAVE_ALPN
#ifndef CONFIG_IDF_TARGET_ESP8266
/* Unless installed in the ESP8266 RTOS SDK locally, the wolfSSL
* API for SNI will not be seen in the components/esp-tls layer.
* Only enable SNI for non-ESP8266 targets by default: */
#define HAVE_SNI
#endif
#define OPENSSL_EXTRA_X509_SMALL
#define HAVE_TLS_EXTENSIONS
#define HAVE_SUPPORTED_CURVES
#endif
/* Optionally enable some wolfSSH settings */
#if defined(ESP_ENABLE_WOLFSSH) || defined(CONFIG_ESP_ENABLE_WOLFSSH)
/* Enable wolfSSH. Espressif examples need a few more settings, below */
#undef WOLFSSL_WOLFSSH
#define WOLFSSL_WOLFSSH
/* The default SSH Windows size is massive for an embedded target.
* Limit it: */
#define DEFAULT_WINDOW_SZ 2000
/* These may be defined in cmake for other examples: */
#undef WOLFSSH_TERM
#define WOLFSSH_TERM
/* optional debug */
/* #undef DEBUG_WOLFSSH */
/* #define DEBUG_WOLFSSH */
#undef WOLFSSL_KEY_GEN
#define WOLFSSL_KEY_GEN
#undef WOLFSSL_PTHREADS
#define WOLFSSL_PTHREADS
#define WOLFSSH_TEST_SERVER
#define WOLFSSH_TEST_THREADING
#endif /* ESP_ENABLE_WOLFSSH */
/* Not yet using WiFi lib, so don't compile in the esp-sdk-lib WiFi helpers: */
/* #define USE_WOLFSSL_ESP_SDK_WIFI */
/*
* ONE of these Espressif chip families will be detected from sdkconfig:
*
* WOLFSSL_ESP32
* WOLFSSL_ESPWROOM32SE
* WOLFSSL_ESP8266
*
* following ifdef detection only for syntax highlighting:
*/
#ifdef WOLFSSL_ESPWROOM32SE
#undef WOLFSSL_ESPWROOM32SE
#endif
#ifdef WOLFSSL_ESP8266
#undef WOLFSSL_ESP8266
#endif
#ifdef WOLFSSL_ESP32
#undef WOLFSSL_ESP32
#endif
/* See below for chipset detection from sdkconfig.h */
/* when you want to use SINGLE THREAD. Note Default ESP-IDF is FreeRTOS */
#define SINGLE_THREADED
/* Small session cache saves a lot of RAM for ClientCache and SessionCache.
* Memory requirement is about 5KB, otherwise 20K is needed when not specified.
* If extra small footprint is needed, try MICRO_SESSION_CACHE (< 1K)
* When really desperate or no TLS used, try NO_SESSION_CACHE. */
#define NO_SESSION_CACHE
/* Small Stack uses more heap. */
#define WOLFSSL_SMALL_STACK
/* Full debugging turned off, but show malloc failure detail */
/* #define DEBUG_WOLFSSL */
#define DEBUG_WOLFSSL_MALLOC
/* See test.c that sets cert buffers; we'll set them here: */
#define USE_CERT_BUFFERS_256
#define USE_CERT_BUFFERS_2048
/* RSA_LOW_MEM: Half as much memory but twice as slow. */
#define RSA_LOW_MEM
/* optionally turn off SHA512/224 SHA512/256 */
/* #define WOLFSSL_NOSHA512_224 */
/* #define WOLFSSL_NOSHA512_256 */
/* when you want to use SINGLE THREAD. Note Default ESP-IDF is FreeRTOS */
/* #define SINGLE_THREADED */
/* When you don't want to use the old SHA */
/* #define NO_SHA */
/* #define NO_OLD_TLS */
#define BENCH_EMBEDDED
/* TLS 1.3 */
#ifdef CONFIG_WOLFSSL_ALLOW_TLS13
#define WOLFSSL_TLS13
#define HAVE_TLS_EXTENSIONS
#define HAVE_HKDF
/* May be required */
#ifndef HAVE_AEAD
#endif
/* Required for ECC */
#define HAVE_SUPPORTED_CURVES
/* Required for RSA */
#define WC_RSA_PSS
/* TLS 1.3 normally requires HAVE_FFDHE */
#if defined(HAVE_FFDHE_2048) || \
defined(HAVE_FFDHE_3072) || \
defined(HAVE_FFDHE_4096) || \
defined(HAVE_FFDHE_6144) || \
defined(HAVE_FFDHE_8192)
#else
#define HAVE_FFDHE_2048
/* #error "TLS 1.3 requires HAVE_FFDHE_[nnnn]" */
#endif
#endif
#if defined(CONFIG_IDF_TARGET_ESP32C2) || \
defined(CONFIG_IDF_TARGET_ESP8684)
/* Optionally set smaller size here */
#ifdef HAVE_FFDHE_4096
/* this size may be problematic on the C2 */
#endif
#define HAVE_FFDHE_2048
#else
#define HAVE_FFDHE_4096
#endif
#define NO_FILESYSTEM
#define NO_OLD_TLS
#define HAVE_AESGCM
/* Optional RIPEMD: RACE Integrity Primitives Evaluation Message Digest */
/* #define WOLFSSL_RIPEMD */
/* when you want to use SHA224 */
#define WOLFSSL_SHA224
/* when you want to use SHA384 */
#define WOLFSSL_SHA384
/* Some features not enabled for ESP8266: */
#if defined(CONFIG_IDF_TARGET_ESP8266) || \
defined(CONFIG_IDF_TARGET_ESP32C2)
/* Some known low-memory devices have features not enabled by default. */
/* TODO determine low memory configuration for ECC. */
#else
/* when you want to use SHA512 */
#define WOLFSSL_SHA512
/* when you want to use SHA3 */
/* #define WOLFSSL_SHA3 */
/* ED25519 requires SHA512 */
#define HAVE_ED25519
#endif
#if defined(CONFIG_IDF_TARGET_ESP8266) || defined(CONFIG_IDF_TARGET_ESP32C2)
#define MY_USE_ECC 0
#define MY_USE_RSA 1
#else
#define MY_USE_ECC 1
#define MY_USE_RSA 0
#endif
/* We can use either or both ECC and RSA, but must use at least one. */
#if MY_USE_ECC || MY_USE_RSA
#if MY_USE_ECC
/* ---- ECDSA / ECC ---- */
#define HAVE_ECC
#define HAVE_CURVE25519
#define HAVE_ED25519
#define WOLFSSL_SHA512
/*
#define HAVE_ECC384
#define CURVE25519_SMALL
*/
#else
#define WOLFSSH_NO_ECC
/* WOLFSSH_NO_ECDSA is typically defined automatically,
* here for clarity: */
#define WOLFSSH_NO_ECDSA
#endif
#if MY_USE_RSA
/* ---- RSA ----- */
/* #define RSA_LOW_MEM */
/* DH disabled by default, needed if ECDSA/ECC also turned off */
#define HAVE_DH
#else
#define WOLFSSH_NO_RSA
#endif
#else
#error "Either RSA or ECC must be enabled"
#endif
/* Optional OpenSSL compatibility */
/* #define OPENSSL_EXTRA */
/* #Optional HAVE_PKCS7 */
/* #define HAVE_PKCS7 */
#if defined(HAVE_PKCS7)
/* HAVE_PKCS7 may enable HAVE_PBKDF2 see settings.h */
#define NO_PBKDF2
#define HAVE_AES_KEYWRAP
#define HAVE_X963_KDF
#define WOLFSSL_AES_DIRECT
#endif
/* when you want to use AES counter mode */
/* #define WOLFSSL_AES_DIRECT */
/* #define WOLFSSL_AES_COUNTER */
/* esp32-wroom-32se specific definition */
#if defined(WOLFSSL_ESPWROOM32SE)
#define WOLFSSL_ATECC508A
#define HAVE_PK_CALLBACKS
/* when you want to use a custom slot allocation for ATECC608A */
/* unless your configuration is unusual, you can use default */
/* implementation. */
/* #define CUSTOM_SLOT_ALLOCATION */
#endif
/* WC_NO_CACHE_RESISTANT: slower but more secure */
/* #define WC_NO_CACHE_RESISTANT */
/* TFM_TIMING_RESISTANT: slower but more secure */
/* #define TFM_TIMING_RESISTANT */
/* #define WOLFSSL_ATECC508A_DEBUG */
/* date/time */
/* if it cannot adjust time in the device, */
/* enable macro below */
/* #define NO_ASN_TIME */
/* #define XTIME time */
/* Adjust wait-timeout count if you see timeout in RSA HW acceleration.
* Set to very large number and enable WOLFSSL_HW_METRICS to determine max. */
#ifndef ESP_RSA_TIMEOUT_CNT
#define ESP_RSA_TIMEOUT_CNT 0xFF0000
#endif
/* hash limit for test.c */
#define HASH_SIZE_LIMIT
/* USE_FAST_MATH is default */
#define USE_FAST_MATH
/***** Use SP_MATH *****/
/* #undef USE_FAST_MATH */
/* #define SP_MATH */
/* #define WOLFSSL_SP_MATH_ALL */
/* #define WOLFSSL_SP_RISCV32 */
/***** Use Integer Heap Math *****/
/* #undef USE_FAST_MATH */
/* #define USE_INTEGER_HEAP_MATH */
/* Just syntax highlighting to check math libraries: */
#if defined(SP_MATH) || \
defined(USE_INTEGER_HEAP_MATH) || \
defined(USE_INTEGER_HEAP_MATH) || \
defined(USE_FAST_MATH) || \
defined(WOLFSSL_SP_MATH_ALL) || \
defined(WOLFSSL_SP_RISCV32)
#endif
#define HAVE_VERSION_EXTENDED_INFO
/* #define HAVE_WC_INTROSPECTION */
#ifndef NO_SESSION_CACHE
#define HAVE_SESSION_TICKET
#endif
/* #define HAVE_HASHDRBG */
#if 0
/* Example for additional cert functions */
#define WOLFSSL_KEY_GEN
#define WOLFSSL_CERT_REQ
#define WOLFSSL_CERT_GEN
#define WOLFSSL_CERT_EXT
#define WOLFSSL_SYS_CA_CERTS
#define WOLFSSL_CERT_TEXT
/* command-line options
--enable-keygen
--enable-certgen
--enable-certreq
--enable-certext
--enable-asn-template
*/
#endif
#define WOLFSSL_ASN_TEMPLATE
/*
#undef WOLFSSL_KEY_GEN
#undef WOLFSSL_CERT_REQ
#undef WOLFSSL_CERT_GEN
#undef WOLFSSL_CERT_EXT
#undef WOLFSSL_SYS_CA_CERTS
*/
/* command-line options
--enable-keygen
--enable-certgen
--enable-certreq
--enable-certext
--enable-asn-template
*/
/* optional SM4 Ciphers. See https://github.com/wolfSSL/wolfsm */
/*
#define WOLFSSL_SM2
#define WOLFSSL_SM3
#define WOLFSSL_SM4
*/
#if defined(WOLFSSL_SM2) || defined(WOLFSSL_SM3) || defined(WOLFSSL_SM4)
/* SM settings, possible cipher suites:
TLS13-AES128-GCM-SHA256
TLS13-CHACHA20-POLY1305-SHA256
TLS13-SM4-GCM-SM3
TLS13-SM4-CCM-SM3
#define WOLFSSL_ESP32_CIPHER_SUITE "TLS13-SM4-GCM-SM3"
#define WOLFSSL_ESP32_CIPHER_SUITE "TLS13-SM4-CCM-SM3"
#define WOLFSSL_ESP32_CIPHER_SUITE "ECDHE-ECDSA-SM4-CBC-SM3"
#define WOLFSSL_ESP32_CIPHER_SUITE "ECDHE-ECDSA-SM4-GCM-SM3"
#define WOLFSSL_ESP32_CIPHER_SUITE "ECDHE-ECDSA-SM4-CCM-SM3"
#define WOLFSSL_ESP32_CIPHER_SUITE "TLS13-SM4-GCM-SM3:" \
"TLS13-SM4-CCM-SM3:"
*/
#undef WOLFSSL_BASE16
#define WOLFSSL_BASE16 /* required for WOLFSSL_SM2 */
#undef WOLFSSL_SM4_ECB
#define WOLFSSL_SM4_ECB
#undef WOLFSSL_SM4_CBC
#define WOLFSSL_SM4_CBC
#undef WOLFSSL_SM4_CTR
#define WOLFSSL_SM4_CTR
#undef WOLFSSL_SM4_GCM
#define WOLFSSL_SM4_GCM
#undef WOLFSSL_SM4_CCM
#define WOLFSSL_SM4_CCM
#define HAVE_POLY1305
#define HAVE_CHACHA
#undef HAVE_AESGCM
#define HAVE_AESGCM
#else
/* default settings */
#define USE_CERT_BUFFERS_2048
#endif
/* Chipset detection from sdkconfig.h
* Default is HW enabled unless turned off.
* Uncomment lines to force SW instead of HW acceleration */
#if defined(CONFIG_IDF_TARGET_ESP32) || defined(WOLFSSL_ESPWROOM32SE)
#define WOLFSSL_ESP32
/* Alternatively, if there's an ECC Secure Element present: */
/* #define WOLFSSL_ESPWROOM32SE */
/* wolfSSL HW Acceleration supported on ESP32. Uncomment to disable: */
/* #define NO_ESP32_CRYPT */
/* #define NO_WOLFSSL_ESP32_CRYPT_HASH */
/* #define NO_WOLFSSL_ESP32_CRYPT_AES */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MP_MUL */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MULMOD */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_EXPTMOD */
/* These are defined automatically in esp32-crypt.h, here for clarity: */
#define NO_WOLFSSL_ESP32_CRYPT_HASH_SHA224 /* no SHA224 HW on ESP32 */
#undef ESP_RSA_MULM_BITS
#define ESP_RSA_MULM_BITS 16 /* TODO add compile-time warning */
/***** END CONFIG_IDF_TARGET_ESP32 *****/
#elif defined(CONFIG_IDF_TARGET_ESP32S2)
#define WOLFSSL_ESP32
/* wolfSSL HW Acceleration supported on ESP32-S2. Uncomment to disable: */
/* #define NO_ESP32_CRYPT */
/* #define NO_WOLFSSL_ESP32_CRYPT_HASH */
/* Note: There's no AES192 HW on the ESP32-S2; falls back to SW */
/* #define NO_WOLFSSL_ESP32_CRYPT_AES */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MP_MUL */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MULMOD */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_EXPTMOD */
/***** END CONFIG_IDF_TARGET_ESP32S2 *****/
#elif defined(CONFIG_IDF_TARGET_ESP32S3)
#define WOLFSSL_ESP32
/* wolfSSL HW Acceleration supported on ESP32-S3. Uncomment to disable: */
/* #define NO_ESP32_CRYPT */
/* #define NO_WOLFSSL_ESP32_CRYPT_HASH */
/* Note: There's no AES192 HW on the ESP32-S3; falls back to SW */
/* #define NO_WOLFSSL_ESP32_CRYPT_AES */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MP_MUL */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MULMOD */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_EXPTMOD */
/***** END CONFIG_IDF_TARGET_ESP32S3 *****/
#elif defined(CONFIG_IDF_TARGET_ESP32C2) || \
defined(CONFIG_IDF_TARGET_ESP8684)
#define WOLFSSL_ESP32
/* ESP8684 is essentially ESP32-C2 chip + flash embedded together in a
* single QFN 4x4 mm package. Out of released documentation, Technical
* Reference Manual as well as ESP-IDF Programming Guide is applicable
* to both ESP32-C2 and ESP8684.
*
* See: https://www.esp32.com/viewtopic.php?f=5&t=27926#:~:text=ESP8684%20is%20essentially%20ESP32%2DC2,both%20ESP32%2DC2%20and%20ESP8684. */
/* wolfSSL HW Acceleration supported on ESP32-C2. Uncomment to disable: */
/* #define NO_ESP32_CRYPT */
/* #define NO_WOLFSSL_ESP32_CRYPT_HASH */ /* to disable all SHA HW */
/* These are defined automatically in esp32-crypt.h, here for clarity */
#define NO_WOLFSSL_ESP32_CRYPT_HASH_SHA384 /* no SHA384 HW on C2 */
#define NO_WOLFSSL_ESP32_CRYPT_HASH_SHA512 /* no SHA512 HW on C2 */
/* There's no AES or RSA/Math accelerator on the ESP32-C2
* Auto defined with NO_WOLFSSL_ESP32_CRYPT_RSA_PRI, for clarity: */
#define NO_WOLFSSL_ESP32_CRYPT_AES
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MP_MUL
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MULMOD
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_EXPTMOD
/***** END CONFIG_IDF_TARGET_ESP32C2 *****/
#elif defined(CONFIG_IDF_TARGET_ESP32C3)
#define WOLFSSL_ESP32
/* wolfSSL HW Acceleration supported on ESP32-C3. Uncomment to disable: */
/* #define NO_ESP32_CRYPT */
/* #define NO_WOLFSSL_ESP32_CRYPT_HASH */ /* to disable all SHA HW */
/* These are defined automatically in esp32-crypt.h, here for clarity: */
#define NO_WOLFSSL_ESP32_CRYPT_HASH_SHA384 /* no SHA384 HW on C6 */
#define NO_WOLFSSL_ESP32_CRYPT_HASH_SHA512 /* no SHA512 HW on C6 */
/* #define NO_WOLFSSL_ESP32_CRYPT_AES */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MP_MUL */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MULMOD */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_EXPTMOD */
/***** END CONFIG_IDF_TARGET_ESP32C3 *****/
#elif defined(CONFIG_IDF_TARGET_ESP32C6)
#define WOLFSSL_ESP32
/* wolfSSL HW Acceleration supported on ESP32-C6. Uncomment to disable: */
/* #define NO_ESP32_CRYPT */
/* #define NO_WOLFSSL_ESP32_CRYPT_HASH */
/* These are defined automatically in esp32-crypt.h, here for clarity: */
#define NO_WOLFSSL_ESP32_CRYPT_HASH_SHA384 /* no SHA384 HW on C6 */
#define NO_WOLFSSL_ESP32_CRYPT_HASH_SHA512 /* no SHA512 HW on C6 */
/* #define NO_WOLFSSL_ESP32_CRYPT_AES */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MP_MUL */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MULMOD */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_EXPTMOD */
/***** END CONFIG_IDF_TARGET_ESP32C6 *****/
#elif defined(CONFIG_IDF_TARGET_ESP32H2)
#define WOLFSSL_ESP32
/* wolfSSL Hardware Acceleration not yet implemented */
#define NO_ESP32_CRYPT
#define NO_WOLFSSL_ESP32_CRYPT_HASH
#define NO_WOLFSSL_ESP32_CRYPT_AES
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI
/***** END CONFIG_IDF_TARGET_ESP32H2 *****/
#elif defined(CONFIG_IDF_TARGET_ESP32P4)
#define WOLFSSL_ESP32
/* wolfSSL Hardware Acceleration not yet implemented */
#define NO_ESP32_CRYPT
#define NO_WOLFSSL_ESP32_CRYPT_HASH
#define NO_WOLFSSL_ESP32_CRYPT_AES
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI
/***** END CONFIG_IDF_TARGET_ESP32P4 *****/
#elif defined(CONFIG_IDF_TARGET_ESP8266)
#define WOLFSSL_ESP8266
/* There's no hardware encryption on the ESP8266 */
/* Consider using the ESP32-C2/C3/C6 */
#define NO_ESP32_CRYPT
#define NO_WOLFSSL_ESP32_CRYPT_HASH
#define NO_WOLFSSL_ESP32_CRYPT_AES
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI
#ifndef FP_MAX_BITS
/* FP_MAX_BITS matters in wolfssl_test, not just TLS setting. */
/* MIN_FFDHE_FP_MAX_BITS = (MIN_FFDHE_BITS * 2); see settings.h */
#define FP_MAX_BITS MIN_FFDHE_FP_MAX_BITS
#endif
/***** END CONFIG_IDF_TARGET_ESP266 *****/
#elif defined(CONFIG_IDF_TARGET_ESP8684)
/* There's no Hardware Acceleration available on ESP8684 */
#define NO_ESP32_CRYPT
#define NO_WOLFSSL_ESP32_CRYPT_HASH
#define NO_WOLFSSL_ESP32_CRYPT_AES
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI
/***** END CONFIG_IDF_TARGET_ESP8684 *****/
#else
/* Anything else encountered, disable HW acceleration */
#warning "Unexpected CONFIG_IDF_TARGET_NN value"
#define NO_ESP32_CRYPT
#define NO_WOLFSSL_ESP32_CRYPT_HASH
#define NO_WOLFSSL_ESP32_CRYPT_AES
#define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI
#endif /* CONFIG_IDF_TARGET Check */
/* RSA primitive specific definition, listed AFTER the Chipset detection */
#if defined(WOLFSSL_ESP32) || defined(WOLFSSL_ESPWROOM32SE)
/* Consider USE_FAST_MATH and SMALL_STACK */
#ifndef NO_RSA
#define ESP32_USE_RSA_PRIMITIVE
#if defined(CONFIG_IDF_TARGET_ESP32)
#ifdef CONFIG_ESP_MAIN_TASK_STACK_SIZE
#if CONFIG_ESP_MAIN_TASK_STACK_SIZE < 10500
#warning "RSA may be difficult with less than 10KB Stack "/
#endif
#endif
/* NOTE HW unreliable for small values! */
/* threshold for performance adjustment for HW primitive use */
/* X bits of G^X mod P greater than */
#undef ESP_RSA_EXPT_XBITS
#define ESP_RSA_EXPT_XBITS 32
/* X and Y of X * Y mod P greater than */
#undef ESP_RSA_MULM_BITS
#define ESP_RSA_MULM_BITS 16
#endif
#endif
#endif
/* Debug options:
See wolfssl/wolfcrypt/port/Espressif/esp32-crypt.h for details on debug options
optionally increase error message size for very long paths.
#define WOLFSSL_MAX_ERROR_SZ 500
Turn wolfSSL debugging on/off:
wolfSSL_Debugging_ON();
wolfSSL_Debugging_OFF();
#define ESP_VERIFY_MEMBLOCK
#define DEBUG_WOLFSSL
#define DEBUG_WOLFSSL_VERBOSE
#define DEBUG_WOLFSSL_SHA_MUTEX
#define WOLFSSL_DEBUG_IGNORE_ASN_TIME
#define WOLFSSL_DEBUG_CERT_BUNDLE
#define WOLFSSL_DEBUG_CERT_BUNDLE_NAME
#define WOLFSSL_ESP32_CRYPT_DEBUG
#define WOLFSSL_ESP32_CRYPT_HASH_SHA224_DEBUG
#define NO_RECOVER_SOFTWARE_CALC
#define WOLFSSL_TEST_STRAY 1
#define USE_ESP_DPORT_ACCESS_READ_BUFFER
#define WOLFSSL_ESP32_HW_LOCK_DEBUG
#define WOLFSSL_DEBUG_MUTEX
#define WOLFSSL_DEBUG_ESP_RSA_MULM_BITS
#define WOLFSSL_DEBUG_ESP_HW_MOD_RSAMAX_BITS
#define WOLFSSL_DEBUG_ESP_HW_MULTI_RSAMAX_BITS
#define ESP_DISABLE_HW_TASK_LOCK
#define ESP_MONITOR_HW_TASK_LOCK
#define USE_ESP_DPORT_ACCESS_READ_BUFFER
See wolfcrypt/benchmark/benchmark.c for debug and other settings:
Turn on benchmark timing debugging (CPU Cycles, RTOS ticks, etc)
#define DEBUG_WOLFSSL_BENCHMARK_TIMING
Turn on timer debugging (used when CPU cycles not available)
#define WOLFSSL_BENCHMARK_TIMER_DEBUG
*/
/* Pause in a loop rather than exit. */
/* #define WOLFSSL_ESPIDF_ERROR_PAUSE */
/* #define WOLFSSL_ESP32_HW_LOCK_DEBUG */
#define WOLFSSL_HW_METRICS
/* for test.c */
/* #define HASH_SIZE_LIMIT */
/* Optionally turn off HW math checks */
/* #define NO_HW_MATH_TEST */
/* Optionally include alternate HW test library: alt_hw_test.h */
/* When enabling, the ./components/wolfssl/CMakeLists.txt file
* will need the name of the library in the idf_component_register
* for the PRIV_REQUIRES list. */
/* #define INCLUDE_ALT_HW_TEST */
/* optionally turn off individual math HW acceleration features */
/* Turn off Large Number ESP32 HW Multiplication:
** [Z = X * Y] in esp_mp_mul() */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MP_MUL */
/* Turn off Large Number ESP32 HW Modular Exponentiation:
** [Z = X^Y mod M] in esp_mp_exptmod() */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_EXPTMOD */
/* Turn off Large Number ESP32 HW Modular Multiplication
** [Z = X * Y mod M] in esp_mp_mulmod() */
/* #define NO_WOLFSSL_ESP32_CRYPT_RSA_PRI_MULMOD */
/* used by benchmark: */
#define WOLFSSL_PUBLIC_MP
/* when turning on ECC508 / ECC608 support
#define WOLFSSL_ESPWROOM32SE
#define HAVE_PK_CALLBACKS
#define WOLFSSL_ATECC508A
#define ATCA_WOLFSSL
*/
/* optional SM4 Ciphers. See github.com/wolfSSL/wolfsm */
/***************************** Certificate Macros *****************************
*
* The section below defines macros used in typically all of the wolfSSL
* examples such as the client and server for certs stored in header files.
*
* There are various certificate examples in this header file:
* https://github.com/wolfSSL/wolfssl/blob/master/wolfssl/certs_test.h
*
* To use the sample certificates in code (not recommended for production!):
*
* #if defined(USE_CERT_BUFFERS_2048) || defined(USE_CERT_BUFFERS_1024)
* #include <wolfssl/certs_test.h>
* #endif
*
* To use the sets of macros below, define *one* of these:
*
* USE_CERT_BUFFERS_1024 - ECC 1024 bit encoded ASN1
* USE_CERT_BUFFERS_2048 - RSA 2048 bit encoded ASN1
* WOLFSSL_SM[2,3,4] - SM Ciphers
*
* For example: define USE_CERT_BUFFERS_2048 to use CA Certs used in this
* wolfSSL function for the `ca_cert_der_2048` buffer, size and types:
*
* ret = wolfSSL_CTX_load_verify_buffer(ctx,
* CTX_CA_CERT,
* CTX_CA_CERT_SIZE,
* CTX_CA_CERT_TYPE);
*
* See https://www.wolfssl.com/documentation/manuals/wolfssl/group__CertsKeys.html#function-wolfssl_ctx_load_verify_buffer
*
* In this case the CTX_CA_CERT will be defined as `ca_cert_der_2048` as
* defined here: https://github.com/wolfSSL/wolfssl/blob/master/wolfssl/certs_test.h
*
* The CTX_CA_CERT_SIZE and CTX_CA_CERT_TYPE are similarly used to reference
* array size and cert type respectively.
*
* Similarly for loading the private client key:
*
* ret = wolfSSL_CTX_use_PrivateKey_buffer(ctx,
* CTX_CLIENT_KEY,
* CTX_CLIENT_KEY_SIZE,
* CTX_CLIENT_KEY_TYPE);
*
* see https://www.wolfssl.com/documentation/manuals/wolfssl/group__CertsKeys.html#function-wolfssl_ctx_use_privatekey_buffer
*
* Similarly, the other macros are for server certificates and keys:
* `CTX_SERVER_CERT` and `CTX_SERVER_KEY` are available.
*
* The certificate and key names are typically `static const unsigned char`
* arrays. The [NAME]_size are typically `sizeof([array name])`, and the types
* are the known wolfSSL encoding type integers (e.g. WOLFSSL_FILETYPE_PEM).
*
* See `SSL_FILETYPE_[name]` in
* https://github.com/wolfSSL/wolfssl/blob/master/wolfssl/ssl.h
*
* See Abstract Syntax Notation One (ASN.1) in:
* https://github.com/wolfSSL/wolfssl/blob/master/wolfssl/wolfcrypt/asn.h
*
* Optional SM4 Ciphers:
*
* Although the SM ciphers are shown here, the `certs_test_sm.h` may not yet
* be available. See:
* https://github.com/wolfSSL/wolfssl/pull/6825
* https://github.com/wolfSSL/wolfsm
*
* Uncomment these 3 macros to enable the SM Ciphers and use the macros below.
*/
/*
#define WOLFSSL_SM2
#define WOLFSSL_SM3
#define WOLFSSL_SM4
*/
/* Conditional macros used in wolfSSL TLS client and server examples */
#if defined(WOLFSSL_SM2) || defined(WOLFSSL_SM3) || defined(WOLFSSL_SM4)
#include <wolfssl/certs_test_sm.h>
#define CTX_CA_CERT root_sm2
#define CTX_CA_CERT_SIZE sizeof_root_sm2
#define CTX_CA_CERT_TYPE WOLFSSL_FILETYPE_PEM
#define CTX_SERVER_CERT server_sm2
#define CTX_SERVER_CERT_SIZE sizeof_server_sm2
#define CTX_SERVER_CERT_TYPE WOLFSSL_FILETYPE_PEM
#define CTX_SERVER_KEY server_sm2_priv
#define CTX_SERVER_KEY_SIZE sizeof_server_sm2_priv
#define CTX_SERVER_KEY_TYPE WOLFSSL_FILETYPE_PEM
#undef WOLFSSL_BASE16
#define WOLFSSL_BASE16
#else
#if defined(USE_CERT_BUFFERS_2048)
#ifdef USE_CERT_BUFFERS_1024
#error "USE_CERT_BUFFERS_1024 is already defined. Pick one."
#endif
/* Be sure to include in app when using example certs: */
#include <wolfssl/certs_test.h>
#define USE_CERT_BUFFERS_256
#define CTX_CA_CERT ca_cert_der_2048
#define CTX_CA_CERT_SIZE sizeof_ca_cert_der_2048
#define CTX_CA_CERT_TYPE WOLFSSL_FILETYPE_ASN1
#define CTX_SERVER_CERT server_cert_der_2048
#define CTX_SERVER_CERT_SIZE sizeof_server_cert_der_2048
#define CTX_SERVER_CERT_TYPE WOLFSSL_FILETYPE_ASN1
#define CTX_SERVER_KEY server_key_der_2048
#define CTX_SERVER_KEY_SIZE sizeof_server_key_der_2048
#define CTX_SERVER_KEY_TYPE WOLFSSL_FILETYPE_ASN1
#define CTX_CLIENT_CERT client_cert_der_2048
#define CTX_CLIENT_CERT_SIZE sizeof_client_cert_der_2048
#define CTX_CLIENT_CERT_TYPE WOLFSSL_FILETYPE_ASN1
#define CTX_CLIENT_KEY client_key_der_2048
#define CTX_CLIENT_KEY_SIZE sizeof_client_key_der_2048
#define CTX_CLIENT_KEY_TYPE WOLFSSL_FILETYPE_ASN1
#elif defined(USE_CERT_BUFFERS_1024)
#ifdef USE_CERT_BUFFERS_2048
#error "USE_CERT_BUFFERS_2048 is already defined. Pick one."
#endif
/* Be sure to include in app when using example certs: */
#include <wolfssl/certs_test.h>
#define USE_CERT_BUFFERS_256
#define CTX_CA_CERT ca_cert_der_1024
#define CTX_CA_CERT_SIZE sizeof_ca_cert_der_1024
#define CTX_CA_CERT_TYPE WOLFSSL_FILETYPE_ASN1
#define CTX_CLIENT_CERT client_cert_der_1024
#define CTX_CLIENT_CERT_SIZE sizeof_client_cert_der_1024
#define CTX_CLIENT_CERT_TYPE WOLFSSL_FILETYPE_ASN1
#define CTX_CLIENT_KEY client_key_der_1024
#define CTX_CLIENT_KEY_SIZE sizeof_client_key_der_1024
#define CTX_CLIENT_KEY_TYPE WOLFSSL_FILETYPE_ASN1
#define CTX_SERVER_CERT server_cert_der_1024
#define CTX_SERVER_CERT_SIZE sizeof_server_cert_der_1024
#define CTX_SERVER_CERT_TYPE WOLFSSL_FILETYPE_ASN1
#define CTX_SERVER_KEY server_key_der_1024
#define CTX_SERVER_KEY_SIZE sizeof_server_key_der_1024
#define CTX_SERVER_KEY_TYPE WOLFSSL_FILETYPE_ASN1
#else
/* Optionally define custom cert arrays, sizes, and types here */
#error "Must define USE_CERT_BUFFERS_2048 or USE_CERT_BUFFERS_1024"
#endif
#endif /* Conditional key and cert constant names */
/******************************************************************************
** Sanity Checks
******************************************************************************/
#if defined(CONFIG_ESP_MAIN_TASK_STACK_SIZE)
#if defined(WOLFCRYPT_HAVE_SRP)
#if defined(FP_MAX_BITS)
#if FP_MAX_BITS < (8192 * 2)
#define ESP_SRP_MINIMUM_STACK_8K (24 * 1024)
#else
#define ESP_SRP_MINIMUM_STACK_8K (28 * 1024)
#endif
#else
#error "Please define FP_MAX_BITS when using WOLFCRYPT_HAVE_SRP."
#endif
#if (CONFIG_ESP_MAIN_TASK_STACK_SIZE < ESP_SRP_MINIMUM_STACK)
#warning "WOLFCRYPT_HAVE_SRP enabled with small stack size"
#endif
#endif
#else
#warning "CONFIG_ESP_MAIN_TASK_STACK_SIZE not defined!"
#endif
/* See settings.h for some of the possible hardening options:
*
* #define NO_ESPIDF_DEFAULT
* #define WC_NO_CACHE_RESISTANT
* #define WC_AES_BITSLICED
* #define HAVE_AES_ECB
* #define HAVE_AES_DIRECT
*/