wolfssl/examples/configs/user_settings_platformio.h

/* examples/configs/user_settings_platformio.h
 *
 * Copyright (C) 2006-2024 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
 */

/* This is a sample PlatformIO user_settings.h for wolfSSL
 *
 * Do not include any wolfssl headers here
 *
 * When editing this file:
 * ensure wolfssl_test and wolfssl_benchmark settings match.
 */

 /* Define a macro to display user settings version in example code: */
#define WOLFSSL_USER_SETTINGS_ID "PlatformIO user_settings.h v5.7.0-test.rev02"

/*
 * For other platforms see:
 *   https://github.com/wolfSSL/wolfssl/tree/master/examples/configs
 */

#if defined(ESP_IDF_VERSION_MAJOR) || defined(WOLFSSL_ESPIDF) || \
             defined(ESP_PLATFORM) || defined(WOLFSSL_ESP32)
    #include "sdkconfig.h"
    /* The #include "protocol_examples_common.h" fails for PlatformIO,
     * so disable the WiFi *not needed for test and benchmark examples. */
    #define NO_ESP_SDK_WIFI
#endif


/* We don't use WiFi, so don't compile in the esp-sdk-lib WiFi helpers: */
/* #define USE_WOLFSSL_ESP_SDK_WIFI */

/* Experimental Kyber */
#if 0
    /* Kyber typically needs a minimum 10K stack */
    #define WOLFSSL_EXPERIMENTAL_SETTINGS
    #define WOLFSSL_HAVE_KYBER
    #define WOLFSSL_WC_KYBER
    #define WOLFSSL_SHA3
#endif

/* Used only by benchmark: */
#define BENCH_EMBEDDED
#define WOLFSSL_BENCHMARK_FIXED_UNITS_KB


#define HAVE_VERSION_EXTENDED_INFO
/* Due to limited build control, we'll ignore file warnings. */
/* See github.com/arduino/arduino-cli/issues/631     */
#undef  WOLFSSL_IGNORE_FILE_WARN
#define WOLFSSL_IGNORE_FILE_WARN

/* when you want to use SINGLE THREAD. Note Default ESP-IDF is FreeRTOS */
/* TODO: known PlatformIO problem if SINGLE_THREADED is not enabled.  */
/* See https://github.com/wolfSSL/wolfssl/issues/7533 */
#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

/* Uncommon settings for testing only */
#define TEST_ESPIDF_ALL_WOLFSSL
#ifdef  TEST_ESPIDF_ALL_WOLFSSL
    #define WOLFSSL_MD2
    #define HAVE_BLAKE2
    #define HAVE_BLAKE2B
    #define HAVE_BLAKE2S

    #define WC_RC2
    #define WOLFSSL_ALLOW_RC4

    #define HAVE_POLY1305

    #define WOLFSSL_AES_128
    #define WOLFSSL_AES_OFB
    #define WOLFSSL_AES_CFB
    #define WOLFSSL_AES_XTS

    #define WOLFSSL_WOLFSSH

    #define HAVE_AESGCM
    #define WOLFSSL_AES_COUNTER

    #define HAVE_FFDHE
    #define HAVE_FFDHE_2048
    #if defined(CONFIG_IDF_TARGET_ESP8266)
        /* TODO Full size SRP is disabled on the ESP8266 at this time.
         * Low memory issue? */
        #define WOLFCRYPT_HAVE_SRP
        /* MIN_FFDHE_FP_MAX_BITS = (MIN_FFDHE_BITS * 2); see settings.h */
        #define FP_MAX_BITS MIN_FFDHE_FP_MAX_BITS
    #elif defined(CONFIG_IDF_TARGET_ESP32)   || \
          defined(CONFIG_IDF_TARGET_ESP32S2) || \
          defined(CONFIG_IDF_TARGET_ESP32S3)
        /* SRP Known to be working on this target:*/
        #define WOLFCRYPT_HAVE_SRP
        #define FP_MAX_BITS (8192 * 2)
    #elif defined(CONFIG_IDF_TARGET_ESP32C3) || \
          defined(CONFIG_IDF_TARGET_ESP32H2)
        /* SRP Known to be working on this target:*/
        #define WOLFCRYPT_HAVE_SRP
        #define FP_MAX_BITS (8192 * 2)
    #else
        /* For everything else, give a try and see if SRP working: */
        #define WOLFCRYPT_HAVE_SRP
        #define FP_MAX_BITS (8192 * 2)
    #endif

    #define HAVE_DH

    /* TODO: there may be a problem with HAVE_CAMELLIA with HW AES disabled.
     * Do not define NO_WOLFSSL_ESP32_CRYPT_AES when enabled: */
    /* #define HAVE_CAMELLIA */

    /* DSA requires old SHA */
    #define HAVE_DSA

    /* Needs SHA512 ? */
    #define HAVE_HPKE

    /* Not for Espressif? */
    #if defined(CONFIG_IDF_TARGET_ESP32C2) || \
        defined(CONFIG_IDF_TARGET_ESP8684) || \
        defined(CONFIG_IDF_TARGET_ESP32H2) || \
        defined(CONFIG_IDF_TARGET_ESP8266)

        #if defined(CONFIG_IDF_TARGET_ESP8266)
            #undef HAVE_ECC
            #undef HAVE_ECC_CDH
            #undef HAVE_CURVE25519

            /* TODO does CHACHA also need alignment? Failing on ESP8266
             * See SHA256 __attribute__((aligned(4))); and WC_SHA256_ALIGN */
            #ifdef HAVE_CHACHA
                #error "HAVE_CHACHA not supported on ESP8266"
            #endif
            #ifdef HAVE_XCHACHA
                #error "HAVE_XCHACHA not supported on ESP8266"
            #endif
        #else
            #define HAVE_XCHACHA
            #define HAVE_CHACHA
            /* TODO Not enabled at this time, needs further testing:
             *   #define WC_SRTP_KDF
             *   #define HAVE_COMP_KEY
             *   #define WOLFSSL_HAVE_XMSS
             */
        #endif
        /* TODO AES-EAX not working on this platform */

        /* Optionally disable DH
         *   #undef HAVE_DH
         *   #undef HAVE_FFDHE
         */

        /* ECC_SHAMIR out of memory on ESP32-C2 during ECC  */
        #ifndef HAVE_ECC
            #define ECC_SHAMIR
        #endif
    #else
        #define WOLFSSL_AES_EAX

        #define ECC_SHAMIR
    #endif

    /* Only for WOLFSSL_IMX6_CAAM / WOLFSSL_QNX_CAAM ? */
    /* #define WOLFSSL_CAAM      */
    /* #define WOLFSSL_CAAM_BLOB */

    #define WOLFSSL_AES_SIV
    #define WOLFSSL_CMAC

    #define WOLFSSL_CERT_PIV

    /* HAVE_SCRYPT may turn on HAVE_PBKDF2 see settings.h */
    /* #define HAVE_SCRYPT */
    #define SCRYPT_TEST_ALL
    #define HAVE_X963_KDF
#endif

/* 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 */

/* Cannot use WOLFSSL_NO_MALLOC with small stack */
/* #define WOLFSSL_NO_MALLOC */

#define BENCH_EMBEDDED

/* TLS 1.3                                 */
#define WOLFSSL_TLS13
#define HAVE_TLS_EXTENSIONS
#define WC_RSA_PSS
#define HAVE_HKDF
#define HAVE_AEAD
#define HAVE_SUPPORTED_CURVES

#define WOLFSSL_BENCHMARK_FIXED_UNITS_KB

#define NO_FILESYSTEM

/* To further reduce size, client or server functionality can be disabled.
 * Here, we check if the example code gave us a hint.
 *
 * The calling application can define either one of these macros before
 * including the Arduino wolfssl.h library file:
 *
 *    WOLFSSL_CLIENT_EXAMPLE
 *    WOLFSSL_SERVER_EXAMPLE
 */
#if defined(WOLFSSL_CLIENT_EXAMPLE)
    #define NO_WOLFSSL_SERVER
#elif defined(WOLFSSL_SERVER_EXAMPLE)
    #define NO_WOLFSSL_CLIENT
#else
    /* Provide a hint to application that neither WOLFSSL_CLIENT_EXAMPLE
     * or WOLFSSL_SERVER_EXAMPLE macro hint was desired but not found. */
    #define NO_WOLFSSL_SERVER_CLIENT_MISSING
    /* Both can be disabled in wolfssl test & benchmark */
#endif

#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

/* when you want to use SHA512 */
#define WOLFSSL_SHA512

/* when you want to use SHA3 */
#define WOLFSSL_SHA3

 /* ED25519 requires SHA512 */
#define HAVE_ED25519

/* Some features not enabled for ESP8266: */
#if defined(CONFIG_IDF_TARGET_ESP8266) || \
    defined(CONFIG_IDF_TARGET_ESP32C2)
    /* TODO determine low memory configuration for ECC. */
#else
    #define HAVE_ECC
    #define HAVE_CURVE25519
    #define CURVE25519_SMALL
#endif

#define HAVE_ED25519

/* 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 */
#define ESP_RSA_TIMEOUT_CNT    0x349F00

/* 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 */


#define WOLFSSL_SMALL_STACK


#define HAVE_VERSION_EXTENDED_INFO
/* #define HAVE_WC_INTROSPECTION */

#define  HAVE_SESSION_TICKET

/* #define HAVE_HASHDRBG */

#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

#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
*/

/* 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)
    /*  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)
    /* 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)
    /* 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)
    /* 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: 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)
    /* 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)
    /* 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)
    /*  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_ESP8266)
    #define WOLFSSL_ESP8266

    /* There's no hardware encryption on the ESP8266 */
    /* Consider using the ESP32-C2/C3/C6
     * See www.espressif.com/en/products/socs/esp32-c2 */
    #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_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 */
    #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

#define ESP_VERIFY_MEMBLOCK
#define DEBUG_WOLFSSL
#define DEBUG_WOLFSSL_VERBOSE
#define DEBUG_WOLFSSL_SHA_MUTEX
#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_ESP_RSA_MULM_BITS
#define ESP_DISABLE_HW_TASK_LOCK

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_HW_METRICS
#define ALT_ECC_SIZE

/* 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 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 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: 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 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
 *   github.com/wolfSSL/wolfssl/blob/master/wolfssl/ssl.h
 *
 * See Abstract Syntax Notation One (ASN.1) in:
 *   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:
 *   github.com/wolfSSL/wolfssl/pull/6825
 *   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)
    #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
        #include <wolfssl/certs_test.h>
        #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
        #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