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/* $OpenBSD: key_schedule.c,v 1.11 2024/08/23 12:56:26 anton Exp $ */
/*
* Copyright (c) 2018-2019 Bob Beck <beck@openbsd.org>
*
* 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 <err.h>
#include "ssl_local.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
};
uint8_t csfhello [] = {
0x96, 0x08, 0x10, 0x2a, 0x0f, 0x1c, 0xcc, 0x6d,
0xb6, 0x25, 0x0b, 0x7b, 0x7e, 0x41, 0x7b, 0x1a,
0x00, 0x0e, 0xaa, 0xda, 0x3d, 0xaa, 0xe4, 0x77,
0x7a, 0x76, 0x86, 0xc9, 0xff, 0x83, 0xdf, 0x13
};
const struct tls13_secret csfhello_hash = {
.data = csfhello,
.len = 32,
};
/* 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
};
uint8_t expected_server_application_traffic[] = {
0xa1, 0x1a, 0xf9, 0xf0, 0x55, 0x31, 0xf8, 0x56,
0xad, 0x47, 0x11, 0x6b, 0x45, 0xa9, 0x50, 0x32,
0x82, 0x04, 0xb4, 0xf4, 0x4b, 0xfb, 0x6b, 0x3a,
0x4b, 0x4f, 0x1f, 0x3f, 0xcb, 0x63, 0x16, 0x43
};
uint8_t expected_server_application_traffic_updated[] = {
0x51, 0x92, 0x1b, 0x8a, 0xa3, 0x00, 0x19, 0x76,
0xeb, 0x40, 0x1d, 0x0a, 0x43, 0x19, 0xa8, 0x51,
0x64, 0x16, 0xa6, 0xc5, 0x60, 0x01, 0xa3, 0x57,
0xe5, 0xd1, 0x62, 0x03, 0x1e, 0x84, 0xf9, 0x16,
};
uint8_t expected_client_application_traffic[] = {
0x9e, 0x40, 0x64, 0x6c, 0xe7, 0x9a, 0x7f, 0x9d,
0xc0, 0x5a, 0xf8, 0x88, 0x9b, 0xce, 0x65, 0x52,
0x87, 0x5a, 0xfa, 0x0b, 0x06, 0xdf, 0x00, 0x87,
0xf7, 0x92, 0xeb, 0xb7, 0xc1, 0x75, 0x04, 0xa5,
};
uint8_t expected_client_application_traffic_updated[] = {
0xfc, 0xdf, 0xcc, 0x72, 0x72, 0x5a, 0xae, 0xe4,
0x8b, 0xf6, 0x4e, 0x4f, 0xd8, 0xb7, 0x49, 0xcd,
0xbd, 0xba, 0xb3, 0x9d, 0x90, 0xda, 0x0b, 0x26,
0xe2, 0x24, 0x5c, 0xa6, 0xea, 0x16, 0x72, 0x07,
};
uint8_t expected_exporter_master[] = {
0xfe, 0x22, 0xf8, 0x81, 0x17, 0x6e, 0xda, 0x18,
0xeb, 0x8f, 0x44, 0x52, 0x9e, 0x67, 0x92, 0xc5,
0x0c, 0x9a, 0x3f, 0x89, 0x45, 0x2f, 0x68, 0xd8,
0xae, 0x31, 0x1b, 0x43, 0x09, 0xd3, 0xcf, 0x50
};
int
main (int argc, char **argv)
{
struct tls13_secrets *secrets;
if ((secrets = tls13_secrets_create(EVP_sha256(), 0)) == NULL)
errx(1, "failed to create secrets");
secrets->insecure = 1; /* don't explicit_bzero when done */
if (tls13_derive_handshake_secrets(secrets, ecdhe, 32, &cshello_hash))
FAIL("derive_handshake_secrets worked when it shouldn't\n");
if (tls13_derive_application_secrets(secrets,
&chello_hash))
FAIL("derive_application_secrets worked when it shouldn't\n");
if (!tls13_derive_early_secrets(secrets,
secrets->zeros.data, secrets->zeros.len, &chello_hash))
FAIL("derive_early_secrets failed\n");
if (tls13_derive_early_secrets(secrets,
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, ecdhe, 32, &cshello_hash))
FAIL("derive_handshake_secrets failed\n");
if (tls13_derive_handshake_secrets(secrets, ecdhe, 32, &cshello_hash))
FAIL("derive_handshake_secrets worked when it shouldn't(2)\n");
/* XXX fix hash here once test vector sorted */
if (!tls13_derive_application_secrets(secrets, &csfhello_hash))
FAIL("derive_application_secrets failed\n");
if (tls13_derive_application_secrets(secrets, &csfhello_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");
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");
fprintf(stderr, "server_application_traffic:\n");
compare_data(secrets->server_application_traffic.data, 32,
expected_server_application_traffic, 32);
if (memcmp(secrets->server_application_traffic.data,
expected_server_application_traffic, 32) != 0)
FAIL("server_application_traffic does not match\n");
fprintf(stderr, "client_application_traffic:\n");
compare_data(secrets->client_application_traffic.data, 32,
expected_client_application_traffic, 32);
if (memcmp(secrets->client_application_traffic.data,
expected_client_application_traffic, 32) != 0)
FAIL("server_application_traffic does not match\n");
fprintf(stderr, "exporter_master:\n");
compare_data(secrets->exporter_master.data, 32,
expected_exporter_master, 32);
if (memcmp(secrets->exporter_master.data,
expected_exporter_master, 32) != 0)
FAIL("exporter_master does not match\n");
tls13_update_server_traffic_secret(secrets);
fprintf(stderr, "server_application_traffic after update:\n");
compare_data(secrets->server_application_traffic.data, 32,
expected_server_application_traffic_updated, 32);
if (memcmp(secrets->server_application_traffic.data,
expected_server_application_traffic_updated, 32) != 0)
FAIL("server_application_traffic does not match after update\n");
tls13_update_client_traffic_secret(secrets);
fprintf(stderr, "client_application_traffic after update:\n");
compare_data(secrets->client_application_traffic.data, 32,
expected_client_application_traffic_updated, 32);
if (memcmp(secrets->client_application_traffic.data,
expected_client_application_traffic_updated, 32) != 0)
FAIL("client_application_traffic does not match after update\n");
tls13_secrets_destroy(secrets);
return failures;
}
|
