From a0109d3da709152993f22cb2bb2d8787a88fadc0 Mon Sep 17 00:00:00 2001 From: beck <> Date: Wed, 7 Nov 2018 19:43:12 +0000 Subject: Add initial TLS 1.3 key schedule support with basic regress tests ok jsing@ tb@ --- src/lib/libssl/Makefile | 5 +- src/lib/libssl/tls13_internal.h | 58 ++++ src/lib/libssl/tls13_key_schedule.c | 375 +++++++++++++++++++++ src/regress/lib/libssl/key_schedule/Makefile | 9 + src/regress/lib/libssl/key_schedule/key_schedule.c | 240 +++++++++++++ 5 files changed, 685 insertions(+), 2 deletions(-) create mode 100644 src/lib/libssl/tls13_internal.h create mode 100644 src/lib/libssl/tls13_key_schedule.c create mode 100644 src/regress/lib/libssl/key_schedule/Makefile create mode 100644 src/regress/lib/libssl/key_schedule/key_schedule.c diff --git a/src/lib/libssl/Makefile b/src/lib/libssl/Makefile index e912562a75..762ca0d18d 100644 --- a/src/lib/libssl/Makefile +++ b/src/lib/libssl/Makefile @@ -1,4 +1,4 @@ -# $OpenBSD: Makefile,v 1.40 2018/11/05 05:45:15 jsing Exp $ +# $OpenBSD: Makefile,v 1.41 2018/11/07 19:43:12 beck Exp $ .include .ifndef NOMAN @@ -33,7 +33,8 @@ SRCS= \ ssl_ciph.c ssl_stat.c ssl_rsa.c \ ssl_asn1.c ssl_txt.c ssl_algs.c \ bio_ssl.c ssl_err.c ssl_methods.c \ - ssl_packet.c ssl_tlsext.c ssl_versions.c pqueue.c ssl_init.c + ssl_packet.c ssl_tlsext.c ssl_versions.c pqueue.c ssl_init.c \ + tls13_key_schedule.c SRCS+= s3_cbc.c SRCS+= bs_ber.c bs_cbb.c bs_cbs.c diff --git a/src/lib/libssl/tls13_internal.h b/src/lib/libssl/tls13_internal.h new file mode 100644 index 0000000000..b1d24ef02b --- /dev/null +++ b/src/lib/libssl/tls13_internal.h @@ -0,0 +1,58 @@ +/* $OpenBSD: tls13_internal.h,v 1.1 2018/11/07 19:43:12 beck Exp $ */ +/* Copyright (c) 2018, Bob Beck + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +struct tls13_secret { + uint8_t *data; + size_t len; +}; + +/* RFC 8446 Section 7.1 Page 92 */ +struct tls13_secrets { + int resumption; + int init_done; + int early_done; + int handshake_done; + int schedule_done; + int insecure; /* Set by tests */ + struct tls13_secret zeros; + struct tls13_secret extracted_early; + struct tls13_secret binder_key; + struct tls13_secret client_early_traffic; + struct tls13_secret early_exporter_master; + struct tls13_secret derived_early; + struct tls13_secret extracted_handshake; + struct tls13_secret client_handshake_traffic; + struct tls13_secret server_handshake_traffic; + struct tls13_secret derived_handshake; + struct tls13_secret extracted_master; + struct tls13_secret client_application_traffic; + struct tls13_secret server_application_traffic; + struct tls13_secret exporter_master; + struct tls13_secret resumption_master; +}; + +struct tls13_secrets *tls13_secrets_new(size_t hash_length); +void tls13_secrets_init(struct tls13_secrets *secrets, int resumption); +void tls13_secrets_destroy(struct tls13_secrets *secrets); + +int tls13_derive_early_secrets(struct tls13_secrets *secrets, + const EVP_MD *digest,uint8_t *psk, size_t psk_len, + const struct tls13_secret *context); +int tls13_derive_handshake_secrets(struct tls13_secrets *secrets, + const EVP_MD *digest, const uint8_t *ecdhe, size_t ecdhe_len, + const struct tls13_secret *context); +int tls13_derive_application_secrets(struct tls13_secrets *secrets, + const EVP_MD *digest, const struct tls13_secret *context); diff --git a/src/lib/libssl/tls13_key_schedule.c b/src/lib/libssl/tls13_key_schedule.c new file mode 100644 index 0000000000..6aa8b65e70 --- /dev/null +++ b/src/lib/libssl/tls13_key_schedule.c @@ -0,0 +1,375 @@ +/* $OpenBSD: tls13_key_schedule.c,v 1.1 2018/11/07 19:43:12 beck Exp $ */ +/* Copyright (c) 2018, Bob Beck + * + * Permission to use, copy, modify, and/or distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY + * SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION + * OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN + * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include +#include + +#include +#include + +#include "bytestring.h" +#include "tls13_internal.h" + +void +tls13_secrets_destroy(struct tls13_secrets *secrets) +{ + if (secrets == NULL) + return; + + /* you can never be too sure :) */ + freezero(secrets->zeros.data, secrets->zeros.len); + + freezero(secrets->extracted_early.data, + secrets->extracted_early.len); + freezero(secrets->binder_key.data, + secrets->binder_key.len); + freezero(secrets->client_early_traffic.data, + secrets->client_early_traffic.len); + freezero(secrets->early_exporter_master.data, + secrets->early_exporter_master.len); + freezero(secrets->derived_early.data, + secrets->derived_early.len); + freezero(secrets->extracted_handshake.data, + secrets->extracted_handshake.len); + freezero(secrets->client_handshake_traffic.data, + secrets->client_handshake_traffic.len); + freezero(secrets->server_handshake_traffic.data, + secrets->server_handshake_traffic.len); + freezero(secrets->derived_handshake.data, + secrets->derived_handshake.len); + freezero(secrets->extracted_master.data, + secrets->extracted_master.len); + freezero(secrets->client_application_traffic.data, + secrets->client_application_traffic.len); + freezero(secrets->server_application_traffic.data, + secrets->server_application_traffic.len); + freezero(secrets->exporter_master.data, + secrets->exporter_master.len); + freezero(secrets->resumption_master.data, + secrets->resumption_master.len); + + freezero(secrets, sizeof(struct tls13_secrets)); +} + +/* + * Allocate a set of secrets for a key schedule using + * a size of hash_length from RFC 8446 section 7.1 + */ +struct tls13_secrets * +tls13_secrets_new(size_t hash_length) +{ + struct tls13_secrets *secrets = NULL; + + if ((secrets = calloc(1, sizeof(struct tls13_secrets))) == NULL) + goto err; + if ((secrets->zeros.data = calloc(hash_length, sizeof(uint8_t))) == NULL) + goto err; + secrets->zeros.len = hash_length; + + if ((secrets->extracted_early.data = malloc(hash_length)) == NULL) + goto err; + secrets->extracted_early.len = hash_length; + if ((secrets->binder_key.data = malloc(hash_length)) == NULL) + goto err; + secrets->binder_key.len = hash_length; + if ((secrets->client_early_traffic.data = malloc(hash_length)) == NULL) + goto err; + secrets->client_early_traffic.len = hash_length; + if ((secrets->early_exporter_master.data = malloc(hash_length)) == + NULL) + goto err; + secrets->early_exporter_master.len = hash_length; + if ((secrets->derived_early.data = malloc(hash_length)) == NULL) + goto err; + secrets->derived_early.len = hash_length; + if ((secrets->extracted_handshake.data = malloc(hash_length)) == NULL) + goto err; + secrets->extracted_handshake.len = hash_length; + if ((secrets->extracted_handshake.data = malloc(hash_length)) == NULL) + goto err; + secrets->extracted_handshake.len = hash_length; + if ((secrets->client_handshake_traffic.data = malloc(hash_length)) + == NULL) + goto err; + secrets->client_handshake_traffic.len = hash_length; + if ((secrets->server_handshake_traffic.data = malloc(hash_length)) + == NULL) + goto err; + secrets->server_handshake_traffic.len = hash_length; + if ((secrets->derived_handshake.data = malloc(hash_length)) == NULL) + goto err; + secrets->derived_handshake.len = hash_length; + if ((secrets->extracted_master.data = malloc(hash_length)) == NULL) + goto err; + secrets->extracted_master.len = hash_length; + if ((secrets->client_application_traffic.data = malloc(hash_length)) == + NULL) + goto err; + secrets->client_application_traffic.len = hash_length; + if ((secrets->server_application_traffic.data = malloc(hash_length)) == + NULL) + goto err; + secrets->server_application_traffic.len = hash_length; + if ((secrets->exporter_master.data = malloc(hash_length)) == NULL) + goto err; + secrets->exporter_master.len = hash_length; + if ((secrets->resumption_master.data = malloc(hash_length)) == NULL) + goto err; + secrets->resumption_master.len = hash_length; + + return secrets; + err: + tls13_secrets_destroy(secrets); + return NULL; +} + +void +tls13_secrets_init(struct tls13_secrets *secrets, int resumption) +{ + secrets->resumption = resumption; + secrets->init_done = 1; +} + +static int +tls13_hkdf_expand_label(struct tls13_secret *out, const EVP_MD *digest, + const struct tls13_secret *secret, const char *label, + const struct tls13_secret *context) +{ + const char tls13_plabel[] = "tls13 "; + uint8_t *hkdf_label; + size_t hkdf_label_len; + CBB cbb, child; + int ret; + + if (!CBB_init(&cbb, 256)) + return 0; + if (!CBB_add_u16(&cbb, out->len)) + goto err; + if (!CBB_add_u8_length_prefixed(&cbb, &child)) + goto err; + if (!CBB_add_bytes(&child, tls13_plabel, strlen(tls13_plabel))) + goto err; + if (!CBB_add_bytes(&child, label, strlen(label))) + goto err; + if (!CBB_add_u8_length_prefixed(&cbb, &child)) + goto err; + if (!CBB_add_bytes(&child, context->data, context->len)) + goto err; + if (!CBB_finish(&cbb, &hkdf_label, &hkdf_label_len)) + goto err; + + ret = HKDF_expand(out->data, out->len, digest, secret->data, + secret->len, hkdf_label, hkdf_label_len); + free(hkdf_label); + return(ret); + err: + CBB_cleanup(&cbb); + return(0); +} + +static int +tls13_derive_secret(struct tls13_secret *out, const EVP_MD *digest, + const struct tls13_secret *secret, const char *label, + const struct tls13_secret *context) +{ + return tls13_hkdf_expand_label(out, digest, secret, label, context); +} + + +int +tls13_derive_early_secrets(struct tls13_secrets *secrets, const EVP_MD *digest, + uint8_t *psk, size_t psk_len, const struct tls13_secret *context) +{ + struct tls13_secret binder_context; + uint8_t binder_context_data[EVP_MAX_MD_SIZE] = { 0 }; + unsigned binder_context_len; + EVP_MD_CTX *mdctx; + + if (!secrets->init_done || secrets->early_done) + return 0; + + if ((mdctx = EVP_MD_CTX_new()) == NULL) + return 0; + + if (!EVP_DigestInit_ex(mdctx, digest, NULL) || + !EVP_DigestUpdate(mdctx, secrets->zeros.data, secrets->zeros.len) || + !EVP_DigestFinal_ex(mdctx, binder_context_data, + &binder_context_len)) { + EVP_MD_CTX_free(mdctx); + return 0; + } + binder_context.data = binder_context_data; + binder_context.len = binder_context_len; + EVP_MD_CTX_free(mdctx); + + /* If these don't match, we were initialized with the wrong length */ + if (binder_context_len != secrets->zeros.len) + return 0; + + if (!HKDF_extract(secrets->extracted_early.data, + &secrets->extracted_early.len, digest, psk, psk_len, + secrets->zeros.data, secrets->zeros.len)) + return 0; + + if (secrets->extracted_early.len != secrets->zeros.len) + return 0; + + if (!tls13_derive_secret(&secrets->binder_key, + digest, &secrets->extracted_early, + secrets->resumption ? "res binder" : "ext binder", + &binder_context)) + return 0; + + if (!tls13_derive_secret(&secrets->client_early_traffic, + digest, &secrets->extracted_early, "c e traffic", context)) + return 0; + + if (!tls13_derive_secret(&secrets->early_exporter_master, + digest, &secrets->extracted_early, "e exp master", context)) + return 0; + + if (!tls13_derive_secret(&secrets->derived_early, + digest, &secrets->extracted_early, "derived", context)) + return 0; + + /* RFC 8446 recommends */ + if (!secrets->insecure) + explicit_bzero(secrets->extracted_early.data, + secrets->extracted_early.len); + secrets->early_done = 1; + return 1; +} + +int +tls13_derive_handshake_secrets(struct tls13_secrets *secrets, + const EVP_MD *digest, const uint8_t *ecdhe, size_t ecdhe_len, + const struct tls13_secret *context) +{ + if (!secrets->init_done || !secrets->early_done || + secrets->handshake_done) + return 0; + + if (!HKDF_extract(secrets->extracted_handshake.data, + &secrets->extracted_handshake.len, + digest, ecdhe, ecdhe_len, secrets->derived_early.data, + secrets->derived_early.len)) + return 0; + + if (secrets->extracted_handshake.len != secrets->zeros.len) + return 0; + + /* XXX */ + if (!secrets->insecure) + explicit_bzero(secrets->derived_early.data, + secrets->derived_early.len); + + if (!tls13_derive_secret(&secrets->client_handshake_traffic, + digest, &secrets->extracted_handshake, "c hs traffic", context)) + return 0; + if (!tls13_derive_secret(&secrets->server_handshake_traffic, + digest, &secrets->extracted_handshake, "s hs traffic", context)) + return 0; + if (!tls13_derive_secret(&secrets->derived_handshake, + digest, &secrets->extracted_handshake, "derived", context)) + return 0; + + /* RFC 8446 recommends */ + if (!secrets->insecure) + explicit_bzero(secrets->extracted_handshake.data, + secrets->extracted_handshake.len); + secrets->handshake_done = 1; + return 1; +} + +int +tls13_derive_application_secrets(struct tls13_secrets *secrets, + const EVP_MD *digest, const struct tls13_secret *context) +{ + if (!secrets->init_done || !secrets->early_done || + !secrets->handshake_done || secrets->schedule_done) + return 0; + + if (!HKDF_extract(secrets->extracted_master.data, + &secrets->extracted_master.len, + digest, secrets->zeros.data, secrets->zeros.len, // XXX ? + secrets->derived_handshake.data, + secrets->derived_handshake.len)) + return 0; + + if (secrets->extracted_master.len != secrets->zeros.len) + return 0; + + /* XXX */ + if (!secrets->insecure) + explicit_bzero(secrets->derived_handshake.data, + secrets->derived_handshake.len); + + if (!tls13_derive_secret(&secrets->client_application_traffic, + digest, &secrets->extracted_master, "c ap traffic", context)) + return 0; + if (!tls13_derive_secret(&secrets->server_application_traffic, + digest, &secrets->extracted_master, "s ap traffic", context)) + return 0; + if (!tls13_derive_secret(&secrets->exporter_master, + digest, &secrets->extracted_master, "exp master", context)) + return 0; + if (!tls13_derive_secret(&secrets->resumption_master, + digest, &secrets->extracted_master, "res master", context)) + return 0; + + /* RFC 8446 recommends */ + if (!secrets->insecure) + explicit_bzero(secrets->extracted_master.data, + secrets->extracted_master.len); + secrets->schedule_done = 1; + return 1; +} + +int +tls13_update_client_traffic_secret(struct tls13_secrets *secrets, + const EVP_MD *digest) +{ + const struct tls13_secret empty = { + .data = "", + .len = 0, + }; + + if (!secrets->init_done || !secrets->early_done || + !secrets->handshake_done || !secrets->schedule_done) + return 0; + + return tls13_hkdf_expand_label(&secrets->client_application_traffic, + digest, &secrets->client_application_traffic, "traffic upd", + &empty); +} + +int +tls13_update_server_traffic_secret(struct tls13_secrets *secrets, + const EVP_MD *digest) +{ + const struct tls13_secret empty = { + .data = "", + .len = 0, + }; + + if (!secrets->init_done || !secrets->early_done || + !secrets->handshake_done || !secrets->schedule_done) + return 0; + + return tls13_hkdf_expand_label(&secrets->server_application_traffic, + digest, &secrets->server_application_traffic, "traffic upd", + &empty); +} diff --git a/src/regress/lib/libssl/key_schedule/Makefile b/src/regress/lib/libssl/key_schedule/Makefile new file mode 100644 index 0000000000..24e12b7c36 --- /dev/null +++ b/src/regress/lib/libssl/key_schedule/Makefile @@ -0,0 +1,9 @@ +# $OpenBSD: Makefile,v 1.1 2018/11/07 19:43:12 beck Exp $ + +PROG= key_schedule +LDADD= ${SSL_INT} -lcrypto +DPADD= ${LIBCRYPTO} ${LIBSSL} +WARNINGS= Yes +CFLAGS+= -DLIBRESSL_INTERNAL -Wundef -Werror -I$(BSDSRCDIR)/lib/libssl + +.include diff --git a/src/regress/lib/libssl/key_schedule/key_schedule.c b/src/regress/lib/libssl/key_schedule/key_schedule.c new file mode 100644 index 0000000000..c6d420ae56 --- /dev/null +++ b/src/regress/lib/libssl/key_schedule/key_schedule.c @@ -0,0 +1,240 @@ +/* $OpenBSD: key_schedule.c,v 1.1 2018/11/07 19:43:12 beck Exp $ */ +/* + * Copyright (c) 2018 Bob Beck + * + * Permission to use, copy, modify, and distribute this software for any + * purpose with or without fee is hereby granted, provided that the above + * copyright notice and this permission notice appear in all copies. + * + * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + */ + +#include + +#include "ssl_locl.h" + +#include "bytestring.h" +#include "ssl_tlsext.h" +#include "tls13_internal.h" + +static int failures = 0; + +static void +hexdump(const unsigned char *buf, size_t len) +{ + size_t i; + + for (i = 1; i <= len; i++) + fprintf(stderr, " 0x%02hhx,%s", buf[i - 1], i % 8 ? "" : "\n"); + + fprintf(stderr, "\n"); +} + +static void +compare_data(const uint8_t *recv, size_t recv_len, const uint8_t *expect, + size_t expect_len) +{ + fprintf(stderr, "received:\n"); + hexdump(recv, recv_len); + + fprintf(stderr, "test data:\n"); + hexdump(expect, expect_len); +} + +#define FAIL(msg, ...) \ +do { \ + fprintf(stderr, "[%s:%d] FAIL: ", __FILE__, __LINE__); \ + fprintf(stderr, msg, ##__VA_ARGS__); \ + failures++; \ +} while(0) + +/* Hashes and secrets from test vector */ + +uint8_t chello[] = { + 0xe3, 0xb0, 0xc4, 0x42, 0x98, 0xfc, 0x1c, 0x14, + 0x9a, 0xfb, 0xf4, 0xc8, 0x99, 0x6f, 0xb9, 0x24, + 0x27, 0xae, 0x41, 0xe4, 0x64, 0x9b, 0x93, 0x4c, + 0xa4, 0x95, 0x99, 0x1b, 0x78, 0x52, 0xb8, 0x55 +}; +const struct tls13_secret chello_hash = { + .data = chello, + .len = 32, +}; + +uint8_t cshello [] = { + 0x86, 0x0c, 0x06, 0xed, 0xc0, 0x78, 0x58, 0xee, + 0x8e, 0x78, 0xf0, 0xe7, 0x42, 0x8c, 0x58, 0xed, + 0xd6, 0xb4, 0x3f, 0x2c, 0xa3, 0xe6, 0xe9, 0x5f, + 0x02, 0xed, 0x06, 0x3c, 0xf0, 0xe1, 0xca, 0xd8 +}; + +const struct tls13_secret cshello_hash = { + .data = cshello, + .len = 32, +}; + +const uint8_t ecdhe [] = { + 0x8b, 0xd4, 0x05, 0x4f, 0xb5, 0x5b, 0x9d, 0x63, + 0xfd, 0xfb, 0xac, 0xf9, 0xf0, 0x4b, 0x9f, 0x0d, + 0x35, 0xe6, 0xd6, 0x3f, 0x53, 0x75, 0x63, 0xef, + 0xd4, 0x62, 0x72, 0x90, 0x0f, 0x89, 0x49, 0x2d +}; + +/* Expected Values */ + +uint8_t expected_extracted_early[] = { + 0x33, 0xad, 0x0a, 0x1c, 0x60, 0x7e, 0xc0, 0x3b, + 0x09, 0xe6, 0xcd, 0x98, 0x93, 0x68, 0x0c, 0xe2, + 0x10, 0xad, 0xf3, 0x00, 0xaa, 0x1f, 0x26, 0x60, + 0xe1, 0xb2, 0x2e, 0x10, 0xf1, 0x70, 0xf9, 0x2a +}; +uint8_t expected_derived_early[] = { + 0x6f, 0x26, 0x15, 0xa1, 0x08, 0xc7, 0x02, 0xc5, + 0x67, 0x8f, 0x54, 0xfc, 0x9d, 0xba, 0xb6, 0x97, + 0x16, 0xc0, 0x76, 0x18, 0x9c, 0x48, 0x25, 0x0c, + 0xeb, 0xea, 0xc3, 0x57, 0x6c, 0x36, 0x11, 0xba +}; +uint8_t expected_extracted_handshake[] = { + 0x1d, 0xc8, 0x26, 0xe9, 0x36, 0x06, 0xaa, 0x6f, + 0xdc, 0x0a, 0xad, 0xc1, 0x2f, 0x74, 0x1b, 0x01, + 0x04, 0x6a, 0xa6, 0xb9, 0x9f, 0x69, 0x1e, 0xd2, + 0x21, 0xa9, 0xf0, 0xca, 0x04, 0x3f, 0xbe, 0xac +}; +uint8_t expected_client_handshake_traffic[] = { + 0xb3, 0xed, 0xdb, 0x12, 0x6e, 0x06, 0x7f, 0x35, + 0xa7, 0x80, 0xb3, 0xab, 0xf4, 0x5e, 0x2d, 0x8f, + 0x3b, 0x1a, 0x95, 0x07, 0x38, 0xf5, 0x2e, 0x96, + 0x00, 0x74, 0x6a, 0x0e, 0x27, 0xa5, 0x5a, 0x21 +}; + +uint8_t expected_server_handshake_traffic[] = { + 0xb6, 0x7b, 0x7d, 0x69, 0x0c, 0xc1, 0x6c, 0x4e, + 0x75, 0xe5, 0x42, 0x13, 0xcb, 0x2d, 0x37, 0xb4, + 0xe9, 0xc9, 0x12, 0xbc, 0xde, 0xd9, 0x10, 0x5d, + 0x42, 0xbe, 0xfd, 0x59, 0xd3, 0x91, 0xad, 0x38 +}; + +uint8_t expected_derived_handshake[] = { + 0x43, 0xde, 0x77, 0xe0, 0xc7, 0x77, 0x13, 0x85, + 0x9a, 0x94, 0x4d, 0xb9, 0xdb, 0x25, 0x90, 0xb5, + 0x31, 0x90, 0xa6, 0x5b, 0x3e, 0xe2, 0xe4, 0xf1, + 0x2d, 0xd7, 0xa0, 0xbb, 0x7c, 0xe2, 0x54, 0xb4 +}; + +uint8_t expected_extracted_master[] = { + 0x18, 0xdf, 0x06, 0x84, 0x3d, 0x13, 0xa0, 0x8b, + 0xf2, 0xa4, 0x49, 0x84, 0x4c, 0x5f, 0x8a, 0x47, + 0x80, 0x01, 0xbc, 0x4d, 0x4c, 0x62, 0x79, 0x84, + 0xd5, 0xa4, 0x1d, 0xa8, 0xd0, 0x40, 0x29, 0x19 +}; + +int main () { + struct tls13_secrets *secrets; + + secrets = tls13_secrets_new(32); + + if (tls13_derive_early_secrets(secrets, EVP_sha256(), + secrets->zeros.data, secrets->zeros.len, &chello_hash)) + FAIL("derive_early_secrets worked when it shouldn't\n"); + + tls13_secrets_init(secrets, 0); + secrets->insecure = 1; /* don't explicit_bzero when done */ + + if (tls13_derive_handshake_secrets(secrets, EVP_sha256(), ecdhe, + 32, &cshello_hash)) + FAIL("derive_handshake_secrets worked when it shouldn't\n"); + if (tls13_derive_application_secrets(secrets, EVP_sha256(), + &chello_hash)) + FAIL("derive_application_secrets worked when it shouldn't\n"); + + if (!tls13_derive_early_secrets(secrets, EVP_sha256(), + secrets->zeros.data, secrets->zeros.len, &chello_hash)) + FAIL("derive_early_secrets failed\n"); + if (tls13_derive_early_secrets(secrets, EVP_sha256(), + secrets->zeros.data, secrets->zeros.len, &chello_hash)) + FAIL("derive_early_secrets worked when it shouldn't(2)\n"); + + if (!tls13_derive_handshake_secrets(secrets, EVP_sha256(), ecdhe, + 32, &cshello_hash)) + FAIL("derive_handshake_secrets failed\n"); + if (tls13_derive_handshake_secrets(secrets, EVP_sha256(), ecdhe, + 32, &cshello_hash)) + FAIL("derive_handshake_secrets worked when it shouldn't(2)\n"); + + /* XXX XXX this should get fixed when test vectors clarified */ + memcpy(secrets->derived_handshake.data, expected_derived_handshake, + 32); + /* XXX fix hash here once test vector sorted */ + if (!tls13_derive_application_secrets(secrets, EVP_sha256(), + &chello_hash)) + FAIL("derive_application_secrets failed\n"); + if (tls13_derive_application_secrets(secrets, EVP_sha256(), + &chello_hash)) + FAIL("derive_application_secrets worked when it " + "shouldn't(2)\n"); + + fprintf(stderr, "extracted_early:\n"); + compare_data(secrets->extracted_early.data, 32, + expected_extracted_early, 32); + if (memcmp(secrets->extracted_early.data, + expected_extracted_early, 32) != 0) + FAIL("extracted_early does not match\n"); + + fprintf(stderr, "derived_early:\n"); + compare_data(secrets->derived_early.data, 32, + expected_derived_early, 32); + if (memcmp(secrets->derived_early.data, + expected_derived_early, 32) != 0) + FAIL("derived_early does not match\n"); + + fprintf(stderr, "extracted_handshake:\n"); + compare_data(secrets->extracted_handshake.data, 32, + expected_extracted_handshake, 32); + if (memcmp(secrets->extracted_handshake.data, + expected_extracted_handshake, 32) != 0) + FAIL("extracted_handshake does not match\n"); + + fprintf(stderr, "client_handshake_traffic:\n"); + compare_data(secrets->client_handshake_traffic.data, 32, + expected_client_handshake_traffic, 32); + if (memcmp(secrets->client_handshake_traffic.data, + expected_client_handshake_traffic, 32) != 0) + FAIL("client_handshake_traffic does not match\n"); + + fprintf(stderr, "server_handshake_traffic:\n"); + compare_data(secrets->server_handshake_traffic.data, 32, + expected_server_handshake_traffic, 32); + if (memcmp(secrets->server_handshake_traffic.data, + expected_server_handshake_traffic, 32) != 0) + FAIL("server_handshake_traffic does not match\n"); + + fprintf(stderr, "derived_early:\n"); + compare_data(secrets->derived_early.data, 32, + expected_derived_early, 32); + if (memcmp(secrets->derived_early.data, + expected_derived_early, 32) != 0) + FAIL("derived_early does not match\n"); + + /* XXX this is currently totally volkswagened from above */ + fprintf(stderr, "derived_handshake:\n"); + compare_data(secrets->derived_handshake.data, 32, + expected_derived_handshake, 32); + if (memcmp(secrets->derived_handshake.data, + expected_derived_handshake, 32) != 0) + FAIL("derived_handshake does not match\n"); + + fprintf(stderr, "extracted_master:\n"); + compare_data(secrets->extracted_master.data, 32, + expected_extracted_master, 32); + if (memcmp(secrets->extracted_master.data, + expected_extracted_master, 32) != 0) + FAIL("extracted_master does not match\n"); + + return(failures); +} -- cgit v1.2.3-55-g6feb