| /* |
| * Copyright 2016-2021 The OpenSSL Project Authors. All Rights Reserved. |
| * |
| * Licensed under the Apache License 2.0 (the "License"). You may not use |
| * this file except in compliance with the License. You can obtain a copy |
| * in the file LICENSE in the source distribution or at |
| * https://www.openssl.org/source/license.html |
| */ |
| |
| #include <openssl/ssl.h> |
| #include <openssl/evp.h> |
| |
| #include "../ssl/ssl_local.h" |
| #include "testutil.h" |
| |
| #define IVLEN 12 |
| #define KEYLEN 16 |
| |
| /* |
| * Based on the test vectors available in: |
| * https://tools.ietf.org/html/draft-ietf-tls-tls13-vectors-06 |
| */ |
| |
| static unsigned char hs_start_hash[] = { |
| 0xc6, 0xc9, 0x18, 0xad, 0x2f, 0x41, 0x99, 0xd5, 0x59, 0x8e, 0xaf, 0x01, 0x16, |
| 0xcb, 0x7a, 0x5c, 0x2c, 0x14, 0xcb, 0x54, 0x78, 0x12, 0x18, 0x88, 0x8d, 0xb7, |
| 0x03, 0x0d, 0xd5, 0x0d, 0x5e, 0x6d |
| }; |
| |
| static unsigned char hs_full_hash[] = { |
| 0xf8, 0xc1, 0x9e, 0x8c, 0x77, 0xc0, 0x38, 0x79, 0xbb, 0xc8, 0xeb, 0x6d, 0x56, |
| 0xe0, 0x0d, 0xd5, 0xd8, 0x6e, 0xf5, 0x59, 0x27, 0xee, 0xfc, 0x08, 0xe1, 0xb0, |
| 0x02, 0xb6, 0xec, 0xe0, 0x5d, 0xbf |
| }; |
| |
| static unsigned char early_secret[] = { |
| 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 |
| }; |
| |
| static unsigned char ecdhe_secret[] = { |
| 0x81, 0x51, 0xd1, 0x46, 0x4c, 0x1b, 0x55, 0x53, 0x36, 0x23, 0xb9, 0xc2, 0x24, |
| 0x6a, 0x6a, 0x0e, 0x6e, 0x7e, 0x18, 0x50, 0x63, 0xe1, 0x4a, 0xfd, 0xaf, 0xf0, |
| 0xb6, 0xe1, 0xc6, 0x1a, 0x86, 0x42 |
| }; |
| |
| static unsigned char handshake_secret[] = { |
| 0x5b, 0x4f, 0x96, 0x5d, 0xf0, 0x3c, 0x68, 0x2c, 0x46, 0xe6, 0xee, 0x86, 0xc3, |
| 0x11, 0x63, 0x66, 0x15, 0xa1, 0xd2, 0xbb, 0xb2, 0x43, 0x45, 0xc2, 0x52, 0x05, |
| 0x95, 0x3c, 0x87, 0x9e, 0x8d, 0x06 |
| }; |
| |
| static const char *client_hts_label = "c hs traffic"; |
| |
| static unsigned char client_hts[] = { |
| 0xe2, 0xe2, 0x32, 0x07, 0xbd, 0x93, 0xfb, 0x7f, 0xe4, 0xfc, 0x2e, 0x29, 0x7a, |
| 0xfe, 0xab, 0x16, 0x0e, 0x52, 0x2b, 0x5a, 0xb7, 0x5d, 0x64, 0xa8, 0x6e, 0x75, |
| 0xbc, 0xac, 0x3f, 0x3e, 0x51, 0x03 |
| }; |
| |
| static unsigned char client_hts_key[] = { |
| 0x26, 0x79, 0xa4, 0x3e, 0x1d, 0x76, 0x78, 0x40, 0x34, 0xea, 0x17, 0x97, 0xd5, |
| 0xad, 0x26, 0x49 |
| }; |
| |
| static unsigned char client_hts_iv[] = { |
| 0x54, 0x82, 0x40, 0x52, 0x90, 0xdd, 0x0d, 0x2f, 0x81, 0xc0, 0xd9, 0x42 |
| }; |
| |
| static const char *server_hts_label = "s hs traffic"; |
| |
| static unsigned char server_hts[] = { |
| 0x3b, 0x7a, 0x83, 0x9c, 0x23, 0x9e, 0xf2, 0xbf, 0x0b, 0x73, 0x05, 0xa0, 0xe0, |
| 0xc4, 0xe5, 0xa8, 0xc6, 0xc6, 0x93, 0x30, 0xa7, 0x53, 0xb3, 0x08, 0xf5, 0xe3, |
| 0xa8, 0x3a, 0xa2, 0xef, 0x69, 0x79 |
| }; |
| |
| static unsigned char server_hts_key[] = { |
| 0xc6, 0x6c, 0xb1, 0xae, 0xc5, 0x19, 0xdf, 0x44, 0xc9, 0x1e, 0x10, 0x99, 0x55, |
| 0x11, 0xac, 0x8b |
| }; |
| |
| static unsigned char server_hts_iv[] = { |
| 0xf7, 0xf6, 0x88, 0x4c, 0x49, 0x81, 0x71, 0x6c, 0x2d, 0x0d, 0x29, 0xa4 |
| }; |
| |
| static unsigned char master_secret[] = { |
| 0x5c, 0x79, 0xd1, 0x69, 0x42, 0x4e, 0x26, 0x2b, 0x56, 0x32, 0x03, 0x62, 0x7b, |
| 0xe4, 0xeb, 0x51, 0x03, 0x3f, 0x58, 0x8c, 0x43, 0xc9, 0xce, 0x03, 0x73, 0x37, |
| 0x2d, 0xbc, 0xbc, 0x01, 0x85, 0xa7 |
| }; |
| |
| static const char *client_ats_label = "c ap traffic"; |
| |
| static unsigned char client_ats[] = { |
| 0xe2, 0xf0, 0xdb, 0x6a, 0x82, 0xe8, 0x82, 0x80, 0xfc, 0x26, 0xf7, 0x3c, 0x89, |
| 0x85, 0x4e, 0xe8, 0x61, 0x5e, 0x25, 0xdf, 0x28, 0xb2, 0x20, 0x79, 0x62, 0xfa, |
| 0x78, 0x22, 0x26, 0xb2, 0x36, 0x26 |
| }; |
| |
| static unsigned char client_ats_key[] = { |
| 0x88, 0xb9, 0x6a, 0xd6, 0x86, 0xc8, 0x4b, 0xe5, 0x5a, 0xce, 0x18, 0xa5, 0x9c, |
| 0xce, 0x5c, 0x87 |
| }; |
| |
| static unsigned char client_ats_iv[] = { |
| 0xb9, 0x9d, 0xc5, 0x8c, 0xd5, 0xff, 0x5a, 0xb0, 0x82, 0xfd, 0xad, 0x19 |
| }; |
| |
| static const char *server_ats_label = "s ap traffic"; |
| |
| static unsigned char server_ats[] = { |
| 0x5b, 0x73, 0xb1, 0x08, 0xd9, 0xac, 0x1b, 0x9b, 0x0c, 0x82, 0x48, 0xca, 0x39, |
| 0x26, 0xec, 0x6e, 0x7b, 0xc4, 0x7e, 0x41, 0x17, 0x06, 0x96, 0x39, 0x87, 0xec, |
| 0x11, 0x43, 0x5d, 0x30, 0x57, 0x19 |
| }; |
| |
| static unsigned char server_ats_key[] = { |
| 0xa6, 0x88, 0xeb, 0xb5, 0xac, 0x82, 0x6d, 0x6f, 0x42, 0xd4, 0x5c, 0x0c, 0xc4, |
| 0x4b, 0x9b, 0x7d |
| }; |
| |
| static unsigned char server_ats_iv[] = { |
| 0xc1, 0xca, 0xd4, 0x42, 0x5a, 0x43, 0x8b, 0x5d, 0xe7, 0x14, 0x83, 0x0a |
| }; |
| |
| /* Mocked out implementations of various functions */ |
| int ssl3_digest_cached_records(SSL *s, int keep) |
| { |
| return 1; |
| } |
| |
| static int full_hash = 0; |
| |
| /* Give a hash of the currently set handshake */ |
| int ssl_handshake_hash(SSL *s, unsigned char *out, size_t outlen, |
| size_t *hashlen) |
| { |
| if (sizeof(hs_start_hash) > outlen |
| || sizeof(hs_full_hash) != sizeof(hs_start_hash)) |
| return 0; |
| |
| if (full_hash) { |
| memcpy(out, hs_full_hash, sizeof(hs_full_hash)); |
| *hashlen = sizeof(hs_full_hash); |
| } else { |
| memcpy(out, hs_start_hash, sizeof(hs_start_hash)); |
| *hashlen = sizeof(hs_start_hash); |
| } |
| |
| return 1; |
| } |
| |
| const EVP_MD *ssl_handshake_md(SSL *s) |
| { |
| return EVP_sha256(); |
| } |
| |
| void RECORD_LAYER_reset_read_sequence(RECORD_LAYER *rl) |
| { |
| } |
| |
| void RECORD_LAYER_reset_write_sequence(RECORD_LAYER *rl) |
| { |
| } |
| |
| int ssl_cipher_get_evp_cipher(SSL_CTX *ctx, const SSL_CIPHER *sslc, |
| const EVP_CIPHER **enc) |
| { |
| return 0; |
| } |
| |
| int ssl_cipher_get_evp(SSL_CTX *ctx, const SSL_SESSION *s, |
| const EVP_CIPHER **enc, const EVP_MD **md, |
| int *mac_pkey_type, size_t *mac_secret_size, |
| SSL_COMP **comp, int use_etm) |
| |
| { |
| return 0; |
| } |
| |
| int tls1_alert_code(int code) |
| { |
| return code; |
| } |
| |
| int ssl_log_secret(SSL *ssl, |
| const char *label, |
| const uint8_t *secret, |
| size_t secret_len) |
| { |
| return 1; |
| } |
| |
| const EVP_MD *ssl_md(SSL_CTX *ctx, int idx) |
| { |
| return EVP_sha256(); |
| } |
| |
| void ossl_statem_send_fatal(SSL *s, int al) |
| { |
| } |
| |
| void ossl_statem_fatal(SSL *s, int al, int reason, const char *fmt, ...) |
| { |
| } |
| |
| int ossl_statem_export_allowed(SSL *s) |
| { |
| return 1; |
| } |
| |
| int ossl_statem_export_early_allowed(SSL *s) |
| { |
| return 1; |
| } |
| |
| void ssl_evp_cipher_free(const EVP_CIPHER *cipher) |
| { |
| } |
| |
| void ssl_evp_md_free(const EVP_MD *md) |
| { |
| } |
| |
| /* End of mocked out code */ |
| |
| static int test_secret(SSL *s, unsigned char *prk, |
| const unsigned char *label, size_t labellen, |
| const unsigned char *ref_secret, |
| const unsigned char *ref_key, const unsigned char *ref_iv) |
| { |
| size_t hashsize; |
| unsigned char gensecret[EVP_MAX_MD_SIZE]; |
| unsigned char hash[EVP_MAX_MD_SIZE]; |
| unsigned char key[KEYLEN]; |
| unsigned char iv[IVLEN]; |
| const EVP_MD *md = ssl_handshake_md(s); |
| |
| if (!ssl_handshake_hash(s, hash, sizeof(hash), &hashsize)) { |
| TEST_error("Failed to get hash"); |
| return 0; |
| } |
| |
| if (!tls13_hkdf_expand(s, md, prk, label, labellen, hash, hashsize, |
| gensecret, hashsize, 1)) { |
| TEST_error("Secret generation failed"); |
| return 0; |
| } |
| |
| if (!TEST_mem_eq(gensecret, hashsize, ref_secret, hashsize)) |
| return 0; |
| |
| if (!tls13_derive_key(s, md, gensecret, key, KEYLEN)) { |
| TEST_error("Key generation failed"); |
| return 0; |
| } |
| |
| if (!TEST_mem_eq(key, KEYLEN, ref_key, KEYLEN)) |
| return 0; |
| |
| if (!tls13_derive_iv(s, md, gensecret, iv, IVLEN)) { |
| TEST_error("IV generation failed"); |
| return 0; |
| } |
| |
| if (!TEST_mem_eq(iv, IVLEN, ref_iv, IVLEN)) |
| return 0; |
| |
| return 1; |
| } |
| |
| static int test_handshake_secrets(void) |
| { |
| SSL_CTX *ctx = NULL; |
| SSL *s = NULL; |
| int ret = 0; |
| size_t hashsize; |
| unsigned char out_master_secret[EVP_MAX_MD_SIZE]; |
| size_t master_secret_length; |
| |
| ctx = SSL_CTX_new(TLS_method()); |
| if (!TEST_ptr(ctx)) |
| goto err; |
| |
| s = SSL_new(ctx); |
| if (!TEST_ptr(s )) |
| goto err; |
| |
| s->session = SSL_SESSION_new(); |
| if (!TEST_ptr(s->session)) |
| goto err; |
| |
| if (!TEST_true(tls13_generate_secret(s, ssl_handshake_md(s), NULL, NULL, 0, |
| (unsigned char *)&s->early_secret))) { |
| TEST_info("Early secret generation failed"); |
| goto err; |
| } |
| |
| if (!TEST_mem_eq(s->early_secret, sizeof(early_secret), |
| early_secret, sizeof(early_secret))) { |
| TEST_info("Early secret does not match"); |
| goto err; |
| } |
| |
| if (!TEST_true(tls13_generate_handshake_secret(s, ecdhe_secret, |
| sizeof(ecdhe_secret)))) { |
| TEST_info("Handshake secret generation failed"); |
| goto err; |
| } |
| |
| if (!TEST_mem_eq(s->handshake_secret, sizeof(handshake_secret), |
| handshake_secret, sizeof(handshake_secret))) |
| goto err; |
| |
| hashsize = EVP_MD_get_size(ssl_handshake_md(s)); |
| if (!TEST_size_t_eq(sizeof(client_hts), hashsize)) |
| goto err; |
| if (!TEST_size_t_eq(sizeof(client_hts_key), KEYLEN)) |
| goto err; |
| if (!TEST_size_t_eq(sizeof(client_hts_iv), IVLEN)) |
| goto err; |
| |
| if (!TEST_true(test_secret(s, s->handshake_secret, |
| (unsigned char *)client_hts_label, |
| strlen(client_hts_label), client_hts, |
| client_hts_key, client_hts_iv))) { |
| TEST_info("Client handshake secret test failed"); |
| goto err; |
| } |
| |
| if (!TEST_size_t_eq(sizeof(server_hts), hashsize)) |
| goto err; |
| if (!TEST_size_t_eq(sizeof(server_hts_key), KEYLEN)) |
| goto err; |
| if (!TEST_size_t_eq(sizeof(server_hts_iv), IVLEN)) |
| goto err; |
| |
| if (!TEST_true(test_secret(s, s->handshake_secret, |
| (unsigned char *)server_hts_label, |
| strlen(server_hts_label), server_hts, |
| server_hts_key, server_hts_iv))) { |
| TEST_info("Server handshake secret test failed"); |
| goto err; |
| } |
| |
| /* |
| * Ensure the mocked out ssl_handshake_hash() returns the full handshake |
| * hash. |
| */ |
| full_hash = 1; |
| |
| if (!TEST_true(tls13_generate_master_secret(s, out_master_secret, |
| s->handshake_secret, hashsize, |
| &master_secret_length))) { |
| TEST_info("Master secret generation failed"); |
| goto err; |
| } |
| |
| if (!TEST_mem_eq(out_master_secret, master_secret_length, |
| master_secret, sizeof(master_secret))) { |
| TEST_info("Master secret does not match"); |
| goto err; |
| } |
| |
| if (!TEST_size_t_eq(sizeof(client_ats), hashsize)) |
| goto err; |
| if (!TEST_size_t_eq(sizeof(client_ats_key), KEYLEN)) |
| goto err; |
| if (!TEST_size_t_eq(sizeof(client_ats_iv), IVLEN)) |
| goto err; |
| |
| if (!TEST_true(test_secret(s, out_master_secret, |
| (unsigned char *)client_ats_label, |
| strlen(client_ats_label), client_ats, |
| client_ats_key, client_ats_iv))) { |
| TEST_info("Client application data secret test failed"); |
| goto err; |
| } |
| |
| if (!TEST_size_t_eq(sizeof(server_ats), hashsize)) |
| goto err; |
| if (!TEST_size_t_eq(sizeof(server_ats_key), KEYLEN)) |
| goto err; |
| if (!TEST_size_t_eq(sizeof(server_ats_iv), IVLEN)) |
| goto err; |
| |
| if (!TEST_true(test_secret(s, out_master_secret, |
| (unsigned char *)server_ats_label, |
| strlen(server_ats_label), server_ats, |
| server_ats_key, server_ats_iv))) { |
| TEST_info("Server application data secret test failed"); |
| goto err; |
| } |
| |
| ret = 1; |
| err: |
| SSL_free(s); |
| SSL_CTX_free(ctx); |
| return ret; |
| } |
| |
| int setup_tests(void) |
| { |
| ADD_TEST(test_handshake_secrets); |
| return 1; |
| } |