diff --git a/docs/proposed/config-split.md b/docs/proposed/config-split.md new file mode 100644 index 0000000000..57ffd5a486 --- /dev/null +++ b/docs/proposed/config-split.md @@ -0,0 +1,469 @@ +Mbed TLS and TF-PSA-Crypto configuration +======================================== + +## Objectives + +The objective of the repository split is to reach the point where in Mbed TLS +all the cryptography code and its tests are located in a tf-psa-crypto +directory that just contains the TF-PSA-Crypto repository as a submodule. +The cryptography APIs exposed by Mbed TLS are just the TF-PSA-Crypto ones. +Mbed TLS relies solely on the TF-PSA-Crypto build system to build its +cryptography library and its tests. + +The TF-PSA-Crypto configuration file tf_psa_crypto_config.h configures +entirely the cryptography interface exposed by Mbed TLS through TF-PSA-Crypto. +Mbed TLS is configured with two files: mbedtls_config.h for TLS and x509 +and tf_psa_crypto_config.h. + +The platform abstraction layer and its configuration are the same in Mbed TLS +and TF-PSA-Crypto as: +* we want an user of Mbed TLS to set up only one plaform +abstraction layer for both the TLS/x509 part of Mbed TLS and its cryptography +part (TF-PSA-Crypto). +* we want to avoid an interface adaptation. + +## Requirements on tf_psa_crypto_config.h +* it configures the PSA APIs, their implementations, the implementation of the + builtin drivers and the platform abstraction layer. +* it does not contain the legacy cryptography configuration options that are + superseded by the PSA cryptography configuration scheme (PSA_WANT_ and + MBEDTLS_PSA_ACCEL_ macros), for example MBEDTLS_CCM_C or + MBEDTLS_CHACHAPOLY_ALT. +* apart from the legacy cryptography configuration options mentioned in the + previous point and the cryptography configuration options that are planned + to be removed for 4.0, tf_psa_crypto_config.h inherites from all the + cryptography configuration options of mbedtls_config.h. +* apart from the PSA cryptography API configuration options that are prefixed + by PSA_WANT_, the tf_psa_crypto_config.h configuration options are prefixed + by TF_PSA_CRYPTO_. + +## Comments about objectives and requirements + +Given the objectives and requirements on tf_psa_crypto_config.h above, the +Mbed TLS configuration with mbedtls_config.h and tf_psa_crypto_config.h can be +seen as an extension of the so called PSA cryptographic configuration scheme +based on mbedtls_config.h and crypto_config.h. The configuration file +crypto_config.h is extended to become the TF-PSA-Crypto configuration file, +mbedtls_config.h mainly becomes the configuration file for the TLS and x509 +libraries. + +Regarding the platform abstraction layer configuration options, we do not +want to use the TF-PSA-Crypto ones in TLS and x509 code thus each of them has +an equivalent one in mbedtls_config.h prefixed by MBEDTLS_ instead of +TF_PSA_CRYPTO_ that just expand to the TF_PSA_CRYPTO_ one: +#define MBEDTLS_xyz TF_PSA_CRYPTO_xyz. + +## Sections in tf_psa_crypto_config.h + +The tf_psa_crypto_config.h configuration file is organized into seven sections. + +The pre-split mbedtls_config.h configuration files contains configuration +options that apply to the whole code base (TLS, x509, crypto and tests) mostly +related to the platform abstraction layer and testing. In tf_psa_crypto_config.h +these configurations options are organized into two sections, one for the +platform abstraction layer options and one for the others, respectively named +"Platform abstraction layer configuration options" and +"General and test configuration options". + +Then, the "PSA cryptography API configuration options" section is the +equivalent of the pre-split crypto_config.h configuration file containing the +PSA_WANT_ prefixed macros. + +Compared to Mbed TLS, the cryptography code in TF-PSA-Crypto is not located +in a single directory but split between the PSA core (core directory) and the +PSA builtin drivers (drivers/builtin/src directory). This is reflected in +tf_psa_crypto_config.h with two sections named "PSA core configuration options" +and "Builtin drivers configuration options". + +The two last sections contain the configuration options for the cryptography +mechanisms that are not yet part of the PSA cryptography API (like LMS) and +for cryptography utilities (like base64 or ASN1 APIs) that facilitate the usage +of the PSA cryptography API in other cryptography projects. They are +named respectively "Beyond the current PSA cryptography API configuration +options" and "Cryptography utilities configuration options". + +By contrast to mbedtls_config.h, tf_psa_crypto_config.h does not contain a +section like the "Module configuration options" one containing non boolean +configuration options. The configuration options that are not boolean are +located in the same section as the boolean option they are associated to. + +Open question: do we group them into a subsection? + +## Repartition of the configuration options + +Starting from mbedtls_config.h as in c085cc767d, we remove the following +configuration options as duplicates of PSA_WANT_ and MBEDTLS_PSA_ACCEL_ +options or obsolete options: +//#define MBEDTLS_AES_ALT +//#define MBEDTLS_ARIA_ALT +//#define MBEDTLS_CAMELLIA_ALT +//#define MBEDTLS_CCM_ALT +//#define MBEDTLS_CHACHA20_ALT +//#define MBEDTLS_CHACHAPOLY_ALT +//#define MBEDTLS_CMAC_ALT +//#define MBEDTLS_DES_ALT +//#define MBEDTLS_DHM_ALT +//#define MBEDTLS_ECJPAKE_ALT +//#define MBEDTLS_GCM_ALT +//#define MBEDTLS_NIST_KW_ALT +//#define MBEDTLS_MD5_ALT +//#define MBEDTLS_POLY1305_ALT +//#define MBEDTLS_RIPEMD160_ALT +//#define MBEDTLS_RSA_ALT +//#define MBEDTLS_SHA1_ALT +//#define MBEDTLS_SHA256_ALT +//#define MBEDTLS_SHA512_ALT +//#define MBEDTLS_ECP_ALT +//#define MBEDTLS_MD5_PROCESS_ALT +//#define MBEDTLS_RIPEMD160_PROCESS_ALT +//#define MBEDTLS_SHA1_PROCESS_ALT +//#define MBEDTLS_SHA256_PROCESS_ALT +//#define MBEDTLS_SHA512_PROCESS_ALT +//#define MBEDTLS_DES_SETKEY_ALT +//#define MBEDTLS_DES_CRYPT_ECB_ALT +//#define MBEDTLS_DES3_CRYPT_ECB_ALT +//#define MBEDTLS_AES_SETKEY_ENC_ALT +//#define MBEDTLS_AES_SETKEY_DEC_ALT +//#define MBEDTLS_AES_ENCRYPT_ALT +//#define MBEDTLS_AES_DECRYPT_ALT +//#define MBEDTLS_ECDH_GEN_PUBLIC_ALT +//#define MBEDTLS_ECDH_COMPUTE_SHARED_ALT +//#define MBEDTLS_ECDSA_VERIFY_ALT +//#define MBEDTLS_ECDSA_SIGN_ALT +//#define MBEDTLS_ECDSA_GENKEY_ALT +//#define MBEDTLS_ECP_INTERNAL_ALT +//#define MBEDTLS_ECP_NO_FALLBACK +//#define MBEDTLS_ECP_RANDOMIZE_JAC_ALT +//#define MBEDTLS_ECP_ADD_MIXED_ALT +//#define MBEDTLS_ECP_DOUBLE_JAC_ALT +//#define MBEDTLS_ECP_NORMALIZE_JAC_MANY_ALT +//#define MBEDTLS_ECP_NORMALIZE_JAC_ALT +//#define MBEDTLS_ECP_DOUBLE_ADD_MXZ_ALT +//#define MBEDTLS_ECP_RANDOMIZE_MXZ_ALT +//#define MBEDTLS_ECP_NORMALIZE_MXZ_ALT +#define MBEDTLS_CIPHER_MODE_CBC +#define MBEDTLS_CIPHER_MODE_CFB +#define MBEDTLS_CIPHER_MODE_CTR +#define MBEDTLS_CIPHER_MODE_OFB +#define MBEDTLS_CIPHER_MODE_XTS +#define MBEDTLS_CIPHER_PADDING_PKCS7 +#define MBEDTLS_CIPHER_PADDING_ONE_AND_ZEROS +#define MBEDTLS_CIPHER_PADDING_ZEROS_AND_LEN +#define MBEDTLS_CIPHER_PADDING_ZEROS +#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 +#define MBEDTLS_ECP_DP_CURVE448_ENABLED +#define MBEDTLS_ECDSA_DETERMINISTIC +#define MBEDTLS_GENPRIME +#define MBEDTLS_PKCS1_V15 +#define MBEDTLS_PKCS1_V21 +//#define MBEDTLS_PSA_CRYPTO_CONFIG +#define MBEDTLS_AES_C +#define MBEDTLS_BIGNUM_C +#define MBEDTLS_CAMELLIA_C +#define MBEDTLS_ARIA_C +#define MBEDTLS_CCM_C +#define MBEDTLS_CHACHA20_C +#define MBEDTLS_CHACHAPOLY_C +#define MBEDTLS_CMAC_C +#define MBEDTLS_DES_C +#define MBEDTLS_DHM_C +#define MBEDTLS_ECDH_C +#define MBEDTLS_ECDSA_C +#define MBEDTLS_ECJPAKE_C +#define MBEDTLS_ECP_C +#define MBEDTLS_GCM_C +#define MBEDTLS_HKDF_C +#define MBEDTLS_MD5_C +#define MBEDTLS_PADLOCK_C +#define MBEDTLS_POLY1305_C +//#define MBEDTLS_PSA_CRYPTO_SE_C +#define MBEDTLS_RIPEMD160_C +#define MBEDTLS_RSA_C +#define MBEDTLS_SHA1_C +#define MBEDTLS_SHA224_C +#define MBEDTLS_SHA256_C +#define MBEDTLS_SHA384_C +#define MBEDTLS_SHA512_C +#define MBEDTLS_SHA3_C + +### In tf_psa_crypto_config.h, we have: +* SECTION "Platform abstraction layer configuration options" +#define MBEDTLS_HAVE_TIME +#define MBEDTLS_HAVE_TIME_DATE +//#define MBEDTLS_PLATFORM_MEMORY +//#define MBEDTLS_PLATFORM_NO_STD_FUNCTIONS +//#define MBEDTLS_PLATFORM_SETBUF_ALT +//#define MBEDTLS_PLATFORM_EXIT_ALT +//#define MBEDTLS_PLATFORM_TIME_ALT +//#define MBEDTLS_PLATFORM_FPRINTF_ALT +//#define MBEDTLS_PLATFORM_PRINTF_ALT +//#define MBEDTLS_PLATFORM_SNPRINTF_ALT +//#define MBEDTLS_PLATFORM_VSNPRINTF_ALT +//#define MBEDTLS_PLATFORM_NV_SEED_ALT +//#define MBEDTLS_PLATFORM_SETUP_TEARDOWN_ALT +//#define MBEDTLS_PLATFORM_MS_TIME_ALT +//#define MBEDTLS_PLATFORM_GMTIME_R_ALT +//#define MBEDTLS_PLATFORM_ZEROIZE_ALT +#define MBEDTLS_FS_IO +//#define MBEDTLS_MEMORY_DEBUG +//#define MBEDTLS_MEMORY_BACKTRACE +//#define MBEDTLS_THREADING_ALT ??? +//#define MBEDTLS_THREADING_PTHREAD +#define MBEDTLS_PLATFORM_C +//#define MBEDTLS_THREADING_C +#define MBEDTLS_TIMING_C +//#define MBEDTLS_TIMING_ALT ??? +//#define MBEDTLS_PLATFORM_STD_MEM_HDR +//#define MBEDTLS_PLATFORM_STD_CALLOC calloc +//#define MBEDTLS_PLATFORM_STD_FREE free +//#define MBEDTLS_PLATFORM_STD_SETBUF setbuf +//#define MBEDTLS_PLATFORM_STD_EXIT exit +//#define MBEDTLS_PLATFORM_STD_TIME time +//#define MBEDTLS_PLATFORM_STD_FPRINTF fprintf +//#define MBEDTLS_PLATFORM_STD_PRINTF printf +//#define MBEDTLS_PLATFORM_STD_SNPRINTF snprintf +//#define MBEDTLS_PLATFORM_STD_EXIT_SUCCESS 0 +//#define MBEDTLS_PLATFORM_STD_EXIT_FAILURE 1 +//#define MBEDTLS_PLATFORM_STD_NV_SEED_READ mbedtls_platform_std_nv_seed_read +//#define MBEDTLS_PLATFORM_STD_NV_SEED_WRITE mbedtls_platform_std_nv_seed_write +//#define MBEDTLS_PLATFORM_STD_NV_SEED_FILE "seedfile" +//#define MBEDTLS_PLATFORM_CALLOC_MACRO calloc +//#define MBEDTLS_PLATFORM_FREE_MACRO free +//#define MBEDTLS_PLATFORM_EXIT_MACRO exit +//#define MBEDTLS_PLATFORM_SETBUF_MACRO setbuf +//#define MBEDTLS_PLATFORM_TIME_MACRO time +//#define MBEDTLS_PLATFORM_TIME_TYPE_MACRO time_t +//#define MBEDTLS_PLATFORM_FPRINTF_MACRO fprintf +//#define MBEDTLS_PLATFORM_PRINTF_MACRO printf +//#define MBEDTLS_PLATFORM_SNPRINTF_MACRO snprintf +//#define MBEDTLS_PLATFORM_VSNPRINTF_MACRO vsnprintf +//#define MBEDTLS_PLATFORM_NV_SEED_READ_MACRO mbedtls_platform_std_nv_seed_read +//#define MBEDTLS_PLATFORM_NV_SEED_WRITE_MACRO mbedtls_platform_std_nv_seed_write +//#define MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO int64_t +//#define MBEDTLS_PRINTF_MS_TIME PRId64 +//#define MBEDTLS_MEMORY_ALIGN_MULTIPLE 4 +//#define MBEDTLS_CHECK_RETURN __attribute__((__warn_unused_result__)) +//#define MBEDTLS_IGNORE_RETURN( result ) ((void) !(result)) + +* SECTION "General and test configuration options" +//#define MBEDTLS_PSA_CRYPTO_CONFIG_FILE "psa/crypto_config.h" +//#define MBEDTLS_PSA_CRYPTO_USER_CONFIG_FILE "/dev/null" +//#define MBEDTLS_DEPRECATED_WARNING +//#define MBEDTLS_DEPRECATED_REMOVED +//#define MBEDTLS_CHECK_RETURN_WARNING +//#define MBEDTLS_TEST_CONSTANT_FLOW_MEMSAN +//#define MBEDTLS_TEST_CONSTANT_FLOW_VALGRIND +//#define MBEDTLS_TEST_HOOKS +#define MBEDTLS_VERSION_C +#define MBEDTLS_VERSION_FEATURES + + +* SECTION "PSA cryptography API configuration options" +include/psa/crypto_config.h + + +* SECTION "PSA core configuration options" +//#define MBEDTLS_ENTROPY_HARDWARE_ALT +//#define MBEDTLS_CTR_DRBG_USE_128_BIT_KEY +//#define MBEDTLS_NO_DEFAULT_ENTROPY_SOURCES +//#define MBEDTLS_NO_PLATFORM_ENTROPY +//#define MBEDTLS_ENTROPY_FORCE_SHA256 +//#define MBEDTLS_ENTROPY_NV_SEED ??? +//#define MBEDTLS_PSA_CRYPTO_KEY_ID_ENCODES_OWNER +//#define MBEDTLS_PSA_CRYPTO_BUILTIN_KEYS +#define MBEDTLS_PSA_CRYPTO_C +//#define MBEDTLS_PSA_CRYPTO_CLIENT +//#define MBEDTLS_PSA_CRYPTO_EXTERNAL_RNG +//#define MBEDTLS_PSA_CRYPTO_SPM +//#define MBEDTLS_PSA_INJECT_ENTROPY +//#define MBEDTLS_PSA_ASSUME_EXCLUSIVE_BUFFERS +#define MBEDTLS_CTR_DRBG_C +#define MBEDTLS_ENTROPY_C +#define MBEDTLS_HMAC_DRBG_C +#define MBEDTLS_PSA_CRYPTO_STORAGE_C +#define MBEDTLS_PSA_ITS_FILE_C +//#define MBEDTLS_PSA_CRYPTO_PLATFORM_FILE "psa/crypto_platform_alt.h" +//#define MBEDTLS_PSA_CRYPTO_STRUCT_FILE "psa/crypto_struct_alt.h" +//#define MBEDTLS_PSA_KEY_SLOT_COUNT 32 +//#define MBEDTLS_PSA_HMAC_DRBG_MD_TYPE MBEDTLS_MD_SHA256 +//#define MBEDTLS_CTR_DRBG_ENTROPY_LEN 48 +//#define MBEDTLS_CTR_DRBG_RESEED_INTERVAL 10000 +//#define MBEDTLS_CTR_DRBG_MAX_INPUT 256 +//#define MBEDTLS_CTR_DRBG_MAX_REQUEST 1024 +//#define MBEDTLS_CTR_DRBG_MAX_SEED_INPUT 384 +//#define MBEDTLS_HMAC_DRBG_RESEED_INTERVAL 10000 +//#define MBEDTLS_HMAC_DRBG_MAX_INPUT 256 +//#define MBEDTLS_HMAC_DRBG_MAX_REQUEST 1024 +//#define MBEDTLS_HMAC_DRBG_MAX_SEED_INPUT 384 +//#define MBEDTLS_ENTROPY_MAX_SOURCES 20 +//#define MBEDTLS_ENTROPY_MAX_GATHER 128 +//#define MBEDTLS_ENTROPY_MIN_HARDWARE 32 + +* SECTION "Builtin drivers configuration options" +#define MBEDTLS_HAVE_ASM +//#define MBEDTLS_NO_UDBL_DIVISION +//#define MBEDTLS_NO_64BIT_MULTIPLICATION +//#define MBEDTLS_HAVE_SSE2 +#define MBEDTLS_AESNI_C +#define MBEDTLS_AESCE_C +//#define MBEDTLS_AES_ROM_TABLES +//#define MBEDTLS_AES_FEWER_TABLES +//#define MBEDTLS_AES_ONLY_128_BIT_KEY_LENGTH +//#define MBEDTLS_AES_USE_HARDWARE_ONLY +//#define MBEDTLS_CAMELLIA_SMALL_MEMORY +//#define MBEDTLS_ECDH_VARIANT_EVEREST_ENABLED +#define MBEDTLS_ECP_NIST_OPTIM +//#define MBEDTLS_ECP_RESTARTABLE ??? +//#define MBEDTLS_ECP_WITH_MPI_UINT +//#define MBEDTLS_PSA_P256M_DRIVER_ENABLED +//#define MBEDTLS_SHA256_SMALLER +//#define MBEDTLS_SHA512_SMALLER +//#define MBEDTLS_RSA_NO_CRT +#define MBEDTLS_SELF_TEST +//#define MBEDTLS_BLOCK_CIPHER_NO_DECRYPT +//#define MBEDTLS_GCM_LARGE_TABLE +//#define MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_IF_PRESENT +//#define MBEDTLS_SHA256_USE_A64_CRYPTO_IF_PRESENT +//#define MBEDTLS_SHA256_USE_ARMV8_A_CRYPTO_ONLY +//#define MBEDTLS_SHA256_USE_A64_CRYPTO_ONLY +//#define MBEDTLS_SHA512_USE_A64_CRYPTO_IF_PRESENT +//#define MBEDTLS_SHA512_USE_A64_CRYPTO_ONLY +//#define MBEDTLS_MPI_WINDOW_SIZE 2 +//#define MBEDTLS_MPI_MAX_SIZE 1024 +//#define MBEDTLS_ECP_WINDOW_SIZE 4 +//#define MBEDTLS_ECP_FIXED_POINT_OPTIM 1 +//#define MBEDTLS_RSA_GEN_KEY_MIN_BITS 1024 + + +* SECTION "Beyond the current PSA cryptography API configuration options." +#define MBEDTLS_CIPHER_C +#define MBEDTLS_LMS_C +//#define MBEDTLS_LMS_PRIVATE +#define MBEDTLS_MD_C +#define MBEDTLS_NIST_KW_C +#define MBEDTLS_PK_PARSE_EC_EXTENDED +#define MBEDTLS_PK_PARSE_EC_COMPRESSED +#define MBEDTLS_PK_RSA_ALT_SUPPORT +#define MBEDTLS_PK_C +#define MBEDTLS_PK_PARSE_C +#define MBEDTLS_PK_WRITE_C +#define MBEDTLS_PKCS5_C +#define MBEDTLS_PKCS12_C + + +* SECTION "Cryptography utilities configuration options" +#define MBEDTLS_ASN1_PARSE_C +#define MBEDTLS_ASN1_WRITE_C +#define MBEDTLS_BASE64_C +#define MBEDTLS_OID_C +#define MBEDTLS_PEM_PARSE_C +#define MBEDTLS_PEM_WRITE_C + + +### In mbedtls_config.h, we have: +* SECTION "System support" +Empty + + +* SECTION "Mbed TLS feature support" +//#define MBEDTLS_CIPHER_NULL_CIPHER +#define MBEDTLS_KEY_EXCHANGE_PSK_ENABLED +#define MBEDTLS_KEY_EXCHANGE_DHE_PSK_ENABLED +#define MBEDTLS_KEY_EXCHANGE_ECDHE_PSK_ENABLED +#define MBEDTLS_KEY_EXCHANGE_RSA_PSK_ENABLED +#define MBEDTLS_KEY_EXCHANGE_RSA_ENABLED +#define MBEDTLS_KEY_EXCHANGE_DHE_RSA_ENABLED +#define MBEDTLS_KEY_EXCHANGE_ECDHE_RSA_ENABLED +#define MBEDTLS_KEY_EXCHANGE_ECDHE_ECDSA_ENABLED +#define MBEDTLS_KEY_EXCHANGE_ECDH_ECDSA_ENABLED +#define MBEDTLS_KEY_EXCHANGE_ECDH_RSA_ENABLED +//#define MBEDTLS_KEY_EXCHANGE_ECJPAKE_ENABLED +#define MBEDTLS_ERROR_STRERROR_DUMMY +#define MBEDTLS_SSL_ALL_ALERT_MESSAGES +#define MBEDTLS_SSL_DTLS_CONNECTION_ID +#define MBEDTLS_SSL_DTLS_CONNECTION_ID_COMPAT 0 +//#define MBEDTLS_SSL_ASYNC_PRIVATE +#define MBEDTLS_SSL_CONTEXT_SERIALIZATION +//#define MBEDTLS_SSL_DEBUG_ALL +#define MBEDTLS_SSL_ENCRYPT_THEN_MAC +#define MBEDTLS_SSL_EXTENDED_MASTER_SECRET +#define MBEDTLS_SSL_KEEP_PEER_CERTIFICATE +#define MBEDTLS_SSL_RENEGOTIATION +#define MBEDTLS_SSL_MAX_FRAGMENT_LENGTH +//#define MBEDTLS_SSL_RECORD_SIZE_LIMIT +#define MBEDTLS_SSL_PROTO_TLS1_2 +#define MBEDTLS_SSL_PROTO_TLS1_3 +#define MBEDTLS_SSL_TLS1_3_COMPATIBILITY_MODE +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_ENABLED +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_EPHEMERAL_ENABLED +#define MBEDTLS_SSL_TLS1_3_KEY_EXCHANGE_MODE_PSK_EPHEMERAL_ENABLED +//#define MBEDTLS_SSL_EARLY_DATA +#define MBEDTLS_SSL_PROTO_DTLS +#define MBEDTLS_SSL_ALPN +#define MBEDTLS_SSL_DTLS_ANTI_REPLAY +#define MBEDTLS_SSL_DTLS_HELLO_VERIFY +//#define MBEDTLS_SSL_DTLS_SRTP +#define MBEDTLS_SSL_DTLS_CLIENT_PORT_REUSE +#define MBEDTLS_SSL_SESSION_TICKETS +#define MBEDTLS_SSL_SERVER_NAME_INDICATION +//#define MBEDTLS_SSL_VARIABLE_BUFFER_LENGTH +//#define MBEDTLS_USE_PSA_CRYPTO +//#define MBEDTLS_X509_TRUSTED_CERTIFICATE_CALLBACK +//#define MBEDTLS_X509_REMOVE_INFO +#define MBEDTLS_X509_RSASSA_PSS_SUPPORT + + +* SECTION "Mbed TLS modules" +#define MBEDTLS_DEBUG_C +#define MBEDTLS_ERROR_C +#define MBEDTLS_NET_C +#define MBEDTLS_PKCS7_C +#define MBEDTLS_SSL_CACHE_C +#define MBEDTLS_SSL_COOKIE_C +#define MBEDTLS_SSL_TICKET_C +#define MBEDTLS_SSL_CLI_C +#define MBEDTLS_SSL_SRV_C +#define MBEDTLS_SSL_TLS_C +#define MBEDTLS_X509_USE_C +#define MBEDTLS_X509_CRT_PARSE_C +#define MBEDTLS_X509_CRL_PARSE_C +#define MBEDTLS_X509_CSR_PARSE_C +#define MBEDTLS_X509_CREATE_C +#define MBEDTLS_X509_CRT_WRITE_C +#define MBEDTLS_X509_CSR_WRITE_C + + +* SECTION "General configuration options" +//#define MBEDTLS_CONFIG_FILE "mbedtls/mbedtls_config.h" +//#define MBEDTLS_USER_CONFIG_FILE "/dev/null" + + +* SECTION "Module configuration options" +//#define MBEDTLS_SSL_CACHE_DEFAULT_TIMEOUT 86400 +//#define MBEDTLS_SSL_CACHE_DEFAULT_MAX_ENTRIES 50 +//#define MBEDTLS_SSL_IN_CONTENT_LEN 16384 +//#define MBEDTLS_SSL_CID_IN_LEN_MAX 32 +//#define MBEDTLS_SSL_CID_OUT_LEN_MAX 32 +//#define MBEDTLS_SSL_CID_TLS1_3_PADDING_GRANULARITY 16 +//#define MBEDTLS_SSL_OUT_CONTENT_LEN 16384 +//#define MBEDTLS_SSL_DTLS_MAX_BUFFERING 32768 +//#define MBEDTLS_PSK_MAX_LEN 32 +//#define MBEDTLS_SSL_COOKIE_TIMEOUT 60 +//#define MBEDTLS_SSL_CIPHERSUITES MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_256_GCM_SHA384,MBEDTLS_TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256 +//#define MBEDTLS_SSL_MAX_EARLY_DATA_SIZE 1024 +//#define MBEDTLS_SSL_TLS1_3_TICKET_AGE_TOLERANCE 6000 +//#define MBEDTLS_SSL_TLS1_3_TICKET_NONCE_LENGTH 32 +//#define MBEDTLS_SSL_TLS1_3_DEFAULT_NEW_SESSION_TICKETS 1 +//#define MBEDTLS_X509_MAX_INTERMEDIATE_CA 8 +//#define MBEDTLS_X509_MAX_FILE_PATH_LEN 512