2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
58 /* ====================================================================
59 * Copyright (c) 1998-2007 The OpenSSL Project. All rights reserved.
61 * Redistribution and use in source and binary forms, with or without
62 * modification, are permitted provided that the following conditions
65 * 1. Redistributions of source code must retain the above copyright
66 * notice, this list of conditions and the following disclaimer.
68 * 2. Redistributions in binary form must reproduce the above copyright
69 * notice, this list of conditions and the following disclaimer in
70 * the documentation and/or other materials provided with the
73 * 3. All advertising materials mentioning features or use of this
74 * software must display the following acknowledgment:
75 * "This product includes software developed by the OpenSSL Project
76 * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
78 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
79 * endorse or promote products derived from this software without
80 * prior written permission. For written permission, please contact
81 * openssl-core@openssl.org.
83 * 5. Products derived from this software may not be called "OpenSSL"
84 * nor may "OpenSSL" appear in their names without prior written
85 * permission of the OpenSSL Project.
87 * 6. Redistributions of any form whatsoever must retain the following
89 * "This product includes software developed by the OpenSSL Project
90 * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
92 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
93 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
95 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
96 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
97 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
98 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
99 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
100 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
101 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
102 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
103 * OF THE POSSIBILITY OF SUCH DAMAGE.
104 * ====================================================================
106 * This product includes cryptographic software written by Eric Young
107 * (eay@cryptsoft.com). This product includes software written by Tim
108 * Hudson (tjh@cryptsoft.com).
111 /* ====================================================================
112 * Copyright 2005 Nokia. All rights reserved.
114 * The portions of the attached software ("Contribution") is developed by
115 * Nokia Corporation and is licensed pursuant to the OpenSSL open source
118 * The Contribution, originally written by Mika Kousa and Pasi Eronen of
119 * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
120 * support (see RFC 4279) to OpenSSL.
122 * No patent licenses or other rights except those expressly stated in
123 * the OpenSSL open source license shall be deemed granted or received
124 * expressly, by implication, estoppel, or otherwise.
126 * No assurances are provided by Nokia that the Contribution does not
127 * infringe the patent or other intellectual property rights of any third
128 * party or that the license provides you with all the necessary rights
129 * to make use of the Contribution.
131 * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
132 * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
133 * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
134 * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
139 #include "ssl_locl.h"
140 #ifndef OPENSSL_NO_COMP
141 # include <openssl/comp.h>
143 #include <openssl/evp.h>
144 #include <openssl/hmac.h>
145 #include <openssl/md5.h>
146 #include <openssl/rand.h>
148 # include <openssl/des.h>
151 /* seed1 through seed5 are virtually concatenated */
152 static int tls1_P_hash(const EVP_MD
*md
, const unsigned char *sec
,
154 const void *seed1
, int seed1_len
,
155 const void *seed2
, int seed2_len
,
156 const void *seed3
, int seed3_len
,
157 const void *seed4
, int seed4_len
,
158 const void *seed5
, int seed5_len
,
159 unsigned char *out
, int olen
)
163 EVP_MD_CTX ctx
, ctx_tmp
, ctx_init
;
165 unsigned char A1
[EVP_MAX_MD_SIZE
];
169 chunk
= EVP_MD_size(md
);
170 OPENSSL_assert(chunk
>= 0);
172 EVP_MD_CTX_init(&ctx
);
173 EVP_MD_CTX_init(&ctx_tmp
);
174 EVP_MD_CTX_init(&ctx_init
);
175 EVP_MD_CTX_set_flags(&ctx_init
, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW
);
176 mac_key
= EVP_PKEY_new_mac_key(EVP_PKEY_HMAC
, NULL
, sec
, sec_len
);
179 if (!EVP_DigestSignInit(&ctx_init
, NULL
, md
, NULL
, mac_key
))
181 if (!EVP_MD_CTX_copy_ex(&ctx
, &ctx_init
))
183 if (seed1
&& !EVP_DigestSignUpdate(&ctx
, seed1
, seed1_len
))
185 if (seed2
&& !EVP_DigestSignUpdate(&ctx
, seed2
, seed2_len
))
187 if (seed3
&& !EVP_DigestSignUpdate(&ctx
, seed3
, seed3_len
))
189 if (seed4
&& !EVP_DigestSignUpdate(&ctx
, seed4
, seed4_len
))
191 if (seed5
&& !EVP_DigestSignUpdate(&ctx
, seed5
, seed5_len
))
193 if (!EVP_DigestSignFinal(&ctx
, A1
, &A1_len
))
197 /* Reinit mac contexts */
198 if (!EVP_MD_CTX_copy_ex(&ctx
, &ctx_init
))
200 if (!EVP_DigestSignUpdate(&ctx
, A1
, A1_len
))
202 if (olen
> chunk
&& !EVP_MD_CTX_copy_ex(&ctx_tmp
, &ctx
))
204 if (seed1
&& !EVP_DigestSignUpdate(&ctx
, seed1
, seed1_len
))
206 if (seed2
&& !EVP_DigestSignUpdate(&ctx
, seed2
, seed2_len
))
208 if (seed3
&& !EVP_DigestSignUpdate(&ctx
, seed3
, seed3_len
))
210 if (seed4
&& !EVP_DigestSignUpdate(&ctx
, seed4
, seed4_len
))
212 if (seed5
&& !EVP_DigestSignUpdate(&ctx
, seed5
, seed5_len
))
216 if (!EVP_DigestSignFinal(&ctx
, out
, &j
))
220 /* calc the next A1 value */
221 if (!EVP_DigestSignFinal(&ctx_tmp
, A1
, &A1_len
))
223 } else { /* last one */
225 if (!EVP_DigestSignFinal(&ctx
, A1
, &A1_len
))
227 memcpy(out
, A1
, olen
);
233 EVP_PKEY_free(mac_key
);
234 EVP_MD_CTX_cleanup(&ctx
);
235 EVP_MD_CTX_cleanup(&ctx_tmp
);
236 EVP_MD_CTX_cleanup(&ctx_init
);
237 OPENSSL_cleanse(A1
, sizeof(A1
));
241 /* seed1 through seed5 are virtually concatenated */
242 static int tls1_PRF(long digest_mask
,
243 const void *seed1
, int seed1_len
,
244 const void *seed2
, int seed2_len
,
245 const void *seed3
, int seed3_len
,
246 const void *seed4
, int seed4_len
,
247 const void *seed5
, int seed5_len
,
248 const unsigned char *sec
, int slen
,
249 unsigned char *out1
, unsigned char *out2
, int olen
)
251 int len
, i
, idx
, count
;
252 const unsigned char *S1
;
257 /* Count number of digests and partition sec evenly */
259 for (idx
= 0; ssl_get_handshake_digest(idx
, &m
, &md
); idx
++) {
260 if ((m
<< TLS1_PRF_DGST_SHIFT
) & digest_mask
)
264 /* Should never happen */
265 SSLerr(SSL_F_TLS1_PRF
, ERR_R_INTERNAL_ERROR
);
272 memset(out1
, 0, olen
);
273 for (idx
= 0; ssl_get_handshake_digest(idx
, &m
, &md
); idx
++) {
274 if ((m
<< TLS1_PRF_DGST_SHIFT
) & digest_mask
) {
276 SSLerr(SSL_F_TLS1_PRF
, SSL_R_UNSUPPORTED_DIGEST_TYPE
);
279 if (!tls1_P_hash(md
, S1
, len
+ (slen
& 1),
280 seed1
, seed1_len
, seed2
, seed2_len
, seed3
,
281 seed3_len
, seed4
, seed4_len
, seed5
, seed5_len
,
285 for (i
= 0; i
< olen
; i
++) {
295 static int tls1_generate_key_block(SSL
*s
, unsigned char *km
,
296 unsigned char *tmp
, int num
)
299 ret
= tls1_PRF(ssl_get_algorithm2(s
),
300 TLS_MD_KEY_EXPANSION_CONST
,
301 TLS_MD_KEY_EXPANSION_CONST_SIZE
, s
->s3
->server_random
,
302 SSL3_RANDOM_SIZE
, s
->s3
->client_random
, SSL3_RANDOM_SIZE
,
303 NULL
, 0, NULL
, 0, s
->session
->master_key
,
304 s
->session
->master_key_length
, km
, tmp
, num
);
306 fprintf(stderr
, "tls1_generate_key_block() ==> %d byte master_key =\n\t",
307 s
->session
->master_key_length
);
310 for (i
= 0; i
< s
->session
->master_key_length
; i
++) {
311 fprintf(stderr
, "%02X", s
->session
->master_key
[i
]);
313 fprintf(stderr
, "\n");
315 #endif /* KSSL_DEBUG */
319 int tls1_change_cipher_state(SSL
*s
, int which
)
321 static const unsigned char empty
[] = "";
322 unsigned char *p
, *mac_secret
;
323 unsigned char *exp_label
;
324 unsigned char tmp1
[EVP_MAX_KEY_LENGTH
];
325 unsigned char tmp2
[EVP_MAX_KEY_LENGTH
];
326 unsigned char iv1
[EVP_MAX_IV_LENGTH
* 2];
327 unsigned char iv2
[EVP_MAX_IV_LENGTH
* 2];
328 unsigned char *ms
, *key
, *iv
;
332 #ifndef OPENSSL_NO_COMP
333 const SSL_COMP
*comp
;
337 int *mac_secret_size
;
340 int is_export
, n
, i
, j
, k
, exp_label_len
, cl
;
343 is_export
= SSL_C_IS_EXPORT(s
->s3
->tmp
.new_cipher
);
344 c
= s
->s3
->tmp
.new_sym_enc
;
345 m
= s
->s3
->tmp
.new_hash
;
346 mac_type
= s
->s3
->tmp
.new_mac_pkey_type
;
347 #ifndef OPENSSL_NO_COMP
348 comp
= s
->s3
->tmp
.new_compression
;
352 fprintf(stderr
, "tls1_change_cipher_state(which= %d) w/\n", which
);
353 fprintf(stderr
, "\talg= %ld/%ld, comp= %p\n",
354 s
->s3
->tmp
.new_cipher
->algorithm_mkey
,
355 s
->s3
->tmp
.new_cipher
->algorithm_auth
, comp
);
356 fprintf(stderr
, "\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c
);
357 fprintf(stderr
, "\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n",
358 c
->nid
, c
->block_size
, c
->key_len
, c
->iv_len
);
359 fprintf(stderr
, "\tkey_block: len= %d, data= ",
360 s
->s3
->tmp
.key_block_length
);
363 for (i
= 0; i
< s
->s3
->tmp
.key_block_length
; i
++)
364 fprintf(stderr
, "%02x", s
->s3
->tmp
.key_block
[i
]);
365 fprintf(stderr
, "\n");
367 #endif /* KSSL_DEBUG */
369 if (which
& SSL3_CC_READ
) {
370 if (s
->s3
->tmp
.new_cipher
->algorithm2
& TLS1_STREAM_MAC
)
371 s
->mac_flags
|= SSL_MAC_FLAG_READ_MAC_STREAM
;
373 s
->mac_flags
&= ~SSL_MAC_FLAG_READ_MAC_STREAM
;
375 if (s
->enc_read_ctx
!= NULL
)
377 else if ((s
->enc_read_ctx
=
378 OPENSSL_malloc(sizeof(EVP_CIPHER_CTX
))) == NULL
)
382 * make sure it's intialized in case we exit later with an error
384 EVP_CIPHER_CTX_init(s
->enc_read_ctx
);
385 dd
= s
->enc_read_ctx
;
386 mac_ctx
= ssl_replace_hash(&s
->read_hash
, NULL
);
389 #ifndef OPENSSL_NO_COMP
390 if (s
->expand
!= NULL
) {
391 COMP_CTX_free(s
->expand
);
395 s
->expand
= COMP_CTX_new(comp
->method
);
396 if (s
->expand
== NULL
) {
397 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
,
398 SSL_R_COMPRESSION_LIBRARY_ERROR
);
401 if (s
->s3
->rrec
.comp
== NULL
)
402 s
->s3
->rrec
.comp
= (unsigned char *)
403 OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH
);
404 if (s
->s3
->rrec
.comp
== NULL
)
409 * this is done by dtls1_reset_seq_numbers for DTLS
412 memset(&(s
->s3
->read_sequence
[0]), 0, 8);
413 mac_secret
= &(s
->s3
->read_mac_secret
[0]);
414 mac_secret_size
= &(s
->s3
->read_mac_secret_size
);
416 if (s
->s3
->tmp
.new_cipher
->algorithm2
& TLS1_STREAM_MAC
)
417 s
->mac_flags
|= SSL_MAC_FLAG_WRITE_MAC_STREAM
;
419 s
->mac_flags
&= ~SSL_MAC_FLAG_WRITE_MAC_STREAM
;
420 if (s
->enc_write_ctx
!= NULL
&& !SSL_IS_DTLS(s
))
422 else if ((s
->enc_write_ctx
= EVP_CIPHER_CTX_new()) == NULL
)
424 dd
= s
->enc_write_ctx
;
425 if (SSL_IS_DTLS(s
)) {
426 mac_ctx
= EVP_MD_CTX_create();
429 s
->write_hash
= mac_ctx
;
431 mac_ctx
= ssl_replace_hash(&s
->write_hash
, NULL
);
435 #ifndef OPENSSL_NO_COMP
436 if (s
->compress
!= NULL
) {
437 COMP_CTX_free(s
->compress
);
441 s
->compress
= COMP_CTX_new(comp
->method
);
442 if (s
->compress
== NULL
) {
443 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
,
444 SSL_R_COMPRESSION_LIBRARY_ERROR
);
450 * this is done by dtls1_reset_seq_numbers for DTLS
453 memset(&(s
->s3
->write_sequence
[0]), 0, 8);
454 mac_secret
= &(s
->s3
->write_mac_secret
[0]);
455 mac_secret_size
= &(s
->s3
->write_mac_secret_size
);
459 EVP_CIPHER_CTX_cleanup(dd
);
461 p
= s
->s3
->tmp
.key_block
;
462 i
= *mac_secret_size
= s
->s3
->tmp
.new_mac_secret_size
;
464 cl
= EVP_CIPHER_key_length(c
);
465 j
= is_export
? (cl
< SSL_C_EXPORT_KEYLENGTH(s
->s3
->tmp
.new_cipher
) ?
466 cl
: SSL_C_EXPORT_KEYLENGTH(s
->s3
->tmp
.new_cipher
)) : cl
;
467 /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
468 /* If GCM mode only part of IV comes from PRF */
469 if (EVP_CIPHER_mode(c
) == EVP_CIPH_GCM_MODE
)
470 k
= EVP_GCM_TLS_FIXED_IV_LEN
;
472 k
= EVP_CIPHER_iv_length(c
);
473 if ((which
== SSL3_CHANGE_CIPHER_CLIENT_WRITE
) ||
474 (which
== SSL3_CHANGE_CIPHER_SERVER_READ
)) {
481 exp_label
= (unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST
;
482 exp_label_len
= TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE
;
492 exp_label
= (unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST
;
493 exp_label_len
= TLS_MD_SERVER_WRITE_KEY_CONST_SIZE
;
497 if (n
> s
->s3
->tmp
.key_block_length
) {
498 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
, ERR_R_INTERNAL_ERROR
);
502 memcpy(mac_secret
, ms
, i
);
504 if (!(EVP_CIPHER_flags(c
) & EVP_CIPH_FLAG_AEAD_CIPHER
)) {
505 mac_key
= EVP_PKEY_new_mac_key(mac_type
, NULL
,
506 mac_secret
, *mac_secret_size
);
508 || EVP_DigestSignInit(mac_ctx
, NULL
, m
, NULL
, mac_key
) <= 0) {
509 EVP_PKEY_free(mac_key
);
510 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
, ERR_R_INTERNAL_ERROR
);
513 EVP_PKEY_free(mac_key
);
516 printf("which = %04X\nmac key=", which
);
519 for (z
= 0; z
< i
; z
++)
520 printf("%02X%c", ms
[z
], ((z
+ 1) % 16) ? ' ' : '\n');
525 * In here I set both the read and write key/iv to the same value
526 * since only the correct one will be used :-).
528 if (!tls1_PRF(ssl_get_algorithm2(s
),
529 exp_label
, exp_label_len
,
530 s
->s3
->client_random
, SSL3_RANDOM_SIZE
,
531 s
->s3
->server_random
, SSL3_RANDOM_SIZE
,
533 key
, j
, tmp1
, tmp2
, EVP_CIPHER_key_length(c
)))
538 if (!tls1_PRF(ssl_get_algorithm2(s
),
539 TLS_MD_IV_BLOCK_CONST
, TLS_MD_IV_BLOCK_CONST_SIZE
,
540 s
->s3
->client_random
, SSL3_RANDOM_SIZE
,
541 s
->s3
->server_random
, SSL3_RANDOM_SIZE
,
542 NULL
, 0, NULL
, 0, empty
, 0, iv1
, iv2
, k
* 2))
551 s
->session
->key_arg_length
= 0;
555 fprintf(stderr
, "EVP_CipherInit_ex(dd,c,key=,iv=,which)\n");
556 fprintf(stderr
, "\tkey= ");
557 for (i
= 0; i
< c
->key_len
; i
++)
558 fprintf(stderr
, "%02x", key
[i
]);
559 fprintf(stderr
, "\n");
560 fprintf(stderr
, "\t iv= ");
561 for (i
= 0; i
< c
->iv_len
; i
++)
562 fprintf(stderr
, "%02x", iv
[i
]);
563 fprintf(stderr
, "\n");
565 #endif /* KSSL_DEBUG */
567 if (EVP_CIPHER_mode(c
) == EVP_CIPH_GCM_MODE
) {
568 if (!EVP_CipherInit_ex(dd
, c
, NULL
, key
, NULL
, (which
& SSL3_CC_WRITE
))
569 || !EVP_CIPHER_CTX_ctrl(dd
, EVP_CTRL_GCM_SET_IV_FIXED
, k
, iv
)) {
570 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
, ERR_R_INTERNAL_ERROR
);
574 if (!EVP_CipherInit_ex(dd
, c
, NULL
, key
, iv
, (which
& SSL3_CC_WRITE
))) {
575 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
, ERR_R_INTERNAL_ERROR
);
579 /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
580 if ((EVP_CIPHER_flags(c
) & EVP_CIPH_FLAG_AEAD_CIPHER
) && *mac_secret_size
581 && !EVP_CIPHER_CTX_ctrl(dd
, EVP_CTRL_AEAD_SET_MAC_KEY
,
582 *mac_secret_size
, mac_secret
)) {
583 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
, ERR_R_INTERNAL_ERROR
);
586 #ifdef OPENSSL_SSL_TRACE_CRYPTO
587 if (s
->msg_callback
) {
588 int wh
= which
& SSL3_CC_WRITE
? TLS1_RT_CRYPTO_WRITE
: 0;
589 if (*mac_secret_size
)
590 s
->msg_callback(2, s
->version
, wh
| TLS1_RT_CRYPTO_MAC
,
591 mac_secret
, *mac_secret_size
,
592 s
, s
->msg_callback_arg
);
594 s
->msg_callback(2, s
->version
, wh
| TLS1_RT_CRYPTO_KEY
,
595 key
, c
->key_len
, s
, s
->msg_callback_arg
);
597 if (EVP_CIPHER_mode(c
) == EVP_CIPH_GCM_MODE
)
598 wh
|= TLS1_RT_CRYPTO_FIXED_IV
;
600 wh
|= TLS1_RT_CRYPTO_IV
;
601 s
->msg_callback(2, s
->version
, wh
, iv
, k
, s
, s
->msg_callback_arg
);
607 printf("which = %04X\nkey=", which
);
610 for (z
= 0; z
< EVP_CIPHER_key_length(c
); z
++)
611 printf("%02X%c", key
[z
], ((z
+ 1) % 16) ? ' ' : '\n');
616 for (z
= 0; z
< k
; z
++)
617 printf("%02X%c", iv
[z
], ((z
+ 1) % 16) ? ' ' : '\n');
622 OPENSSL_cleanse(tmp1
, sizeof(tmp1
));
623 OPENSSL_cleanse(tmp2
, sizeof(tmp1
));
624 OPENSSL_cleanse(iv1
, sizeof(iv1
));
625 OPENSSL_cleanse(iv2
, sizeof(iv2
));
628 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
, ERR_R_MALLOC_FAILURE
);
633 int tls1_setup_key_block(SSL
*s
)
635 unsigned char *p1
, *p2
= NULL
;
640 int mac_type
= NID_undef
, mac_secret_size
= 0;
644 fprintf(stderr
, "tls1_setup_key_block()\n");
645 #endif /* KSSL_DEBUG */
647 if (s
->s3
->tmp
.key_block_length
!= 0)
650 if (!ssl_cipher_get_evp
651 (s
->session
, &c
, &hash
, &mac_type
, &mac_secret_size
, &comp
)) {
652 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK
, SSL_R_CIPHER_OR_HASH_UNAVAILABLE
);
656 s
->s3
->tmp
.new_sym_enc
= c
;
657 s
->s3
->tmp
.new_hash
= hash
;
658 s
->s3
->tmp
.new_mac_pkey_type
= mac_type
;
659 s
->s3
->tmp
.new_mac_secret_size
= mac_secret_size
;
661 EVP_CIPHER_key_length(c
) + mac_secret_size
+ EVP_CIPHER_iv_length(c
);
664 ssl3_cleanup_key_block(s
);
666 if ((p1
= (unsigned char *)OPENSSL_malloc(num
)) == NULL
) {
667 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK
, ERR_R_MALLOC_FAILURE
);
671 s
->s3
->tmp
.key_block_length
= num
;
672 s
->s3
->tmp
.key_block
= p1
;
674 if ((p2
= (unsigned char *)OPENSSL_malloc(num
)) == NULL
) {
675 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK
, ERR_R_MALLOC_FAILURE
);
680 printf("client random\n");
683 for (z
= 0; z
< SSL3_RANDOM_SIZE
; z
++)
684 printf("%02X%c", s
->s3
->client_random
[z
],
685 ((z
+ 1) % 16) ? ' ' : '\n');
687 printf("server random\n");
690 for (z
= 0; z
< SSL3_RANDOM_SIZE
; z
++)
691 printf("%02X%c", s
->s3
->server_random
[z
],
692 ((z
+ 1) % 16) ? ' ' : '\n');
694 printf("pre-master\n");
697 for (z
= 0; z
< s
->session
->master_key_length
; z
++)
698 printf("%02X%c", s
->session
->master_key
[z
],
699 ((z
+ 1) % 16) ? ' ' : '\n');
702 if (!tls1_generate_key_block(s
, p1
, p2
, num
))
705 printf("\nkey block\n");
708 for (z
= 0; z
< num
; z
++)
709 printf("%02X%c", p1
[z
], ((z
+ 1) % 16) ? ' ' : '\n');
713 if (!(s
->options
& SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
)
714 && s
->method
->version
<= TLS1_VERSION
) {
716 * enable vulnerability countermeasure for CBC ciphers with known-IV
717 * problem (http://www.openssl.org/~bodo/tls-cbc.txt)
719 s
->s3
->need_empty_fragments
= 1;
721 if (s
->session
->cipher
!= NULL
) {
722 if (s
->session
->cipher
->algorithm_enc
== SSL_eNULL
)
723 s
->s3
->need_empty_fragments
= 0;
725 #ifndef OPENSSL_NO_RC4
726 if (s
->session
->cipher
->algorithm_enc
== SSL_RC4
)
727 s
->s3
->need_empty_fragments
= 0;
735 OPENSSL_cleanse(p2
, num
);
742 * tls1_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively.
745 * 0: (in non-constant time) if the record is publically invalid (i.e. too
747 * 1: if the record's padding is valid / the encryption was successful.
748 * -1: if the record's padding/AEAD-authenticator is invalid or, if sending,
749 * an internal error occured.
751 int tls1_enc(SSL
*s
, int send
)
756 int bs
, i
, j
, k
, pad
= 0, ret
, mac_size
= 0;
757 const EVP_CIPHER
*enc
;
760 if (EVP_MD_CTX_md(s
->write_hash
)) {
761 int n
= EVP_MD_CTX_size(s
->write_hash
);
762 OPENSSL_assert(n
>= 0);
764 ds
= s
->enc_write_ctx
;
765 rec
= &(s
->s3
->wrec
);
766 if (s
->enc_write_ctx
== NULL
)
770 enc
= EVP_CIPHER_CTX_cipher(s
->enc_write_ctx
);
771 /* For TLSv1.1 and later explicit IV */
772 if (SSL_USE_EXPLICIT_IV(s
)
773 && EVP_CIPHER_mode(enc
) == EVP_CIPH_CBC_MODE
)
774 ivlen
= EVP_CIPHER_iv_length(enc
);
778 if (rec
->data
!= rec
->input
)
780 * we can't write into the input stream: Can this ever
784 "%s:%d: rec->data != rec->input\n",
786 else if (RAND_bytes(rec
->input
, ivlen
) <= 0)
791 if (EVP_MD_CTX_md(s
->read_hash
)) {
792 int n
= EVP_MD_CTX_size(s
->read_hash
);
793 OPENSSL_assert(n
>= 0);
795 ds
= s
->enc_read_ctx
;
796 rec
= &(s
->s3
->rrec
);
797 if (s
->enc_read_ctx
== NULL
)
800 enc
= EVP_CIPHER_CTX_cipher(s
->enc_read_ctx
);
804 fprintf(stderr
, "tls1_enc(%d)\n", send
);
805 #endif /* KSSL_DEBUG */
807 if ((s
->session
== NULL
) || (ds
== NULL
) || (enc
== NULL
)) {
808 memmove(rec
->data
, rec
->input
, rec
->length
);
809 rec
->input
= rec
->data
;
813 bs
= EVP_CIPHER_block_size(ds
->cipher
);
815 if (EVP_CIPHER_flags(ds
->cipher
) & EVP_CIPH_FLAG_AEAD_CIPHER
) {
816 unsigned char buf
[EVP_AEAD_TLS1_AAD_LEN
], *seq
;
818 seq
= send
? s
->s3
->write_sequence
: s
->s3
->read_sequence
;
820 if (SSL_IS_DTLS(s
)) {
821 unsigned char dtlsseq
[9], *p
= dtlsseq
;
823 s2n(send
? s
->d1
->w_epoch
: s
->d1
->r_epoch
, p
);
824 memcpy(p
, &seq
[2], 6);
825 memcpy(buf
, dtlsseq
, 8);
828 for (i
= 7; i
>= 0; i
--) { /* increment */
836 buf
[9] = (unsigned char)(s
->version
>> 8);
837 buf
[10] = (unsigned char)(s
->version
);
838 buf
[11] = rec
->length
>> 8;
839 buf
[12] = rec
->length
& 0xff;
840 pad
= EVP_CIPHER_CTX_ctrl(ds
, EVP_CTRL_AEAD_TLS1_AAD
,
841 EVP_AEAD_TLS1_AAD_LEN
, buf
);
848 } else if ((bs
!= 1) && send
) {
849 i
= bs
- ((int)l
% bs
);
851 /* Add weird padding of upto 256 bytes */
853 /* we need to add 'i' padding bytes of value j */
855 if (s
->options
& SSL_OP_TLS_BLOCK_PADDING_BUG
) {
856 if (s
->s3
->flags
& TLS1_FLAGS_TLS_PADDING_BUG
)
859 for (k
= (int)l
; k
< (int)(l
+ i
); k
++)
868 "EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n",
869 ds
, rec
->data
, rec
->input
, l
);
871 "\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%lu %lu], %d iv_len\n",
872 ds
->buf_len
, ds
->cipher
->key_len
, DES_KEY_SZ
,
873 DES_SCHEDULE_SZ
, ds
->cipher
->iv_len
);
874 fprintf(stderr
, "\t\tIV: ");
875 for (i
= 0; i
< ds
->cipher
->iv_len
; i
++)
876 fprintf(stderr
, "%02X", ds
->iv
[i
]);
877 fprintf(stderr
, "\n");
878 fprintf(stderr
, "\trec->input=");
879 for (ui
= 0; ui
< l
; ui
++)
880 fprintf(stderr
, " %02x", rec
->input
[ui
]);
881 fprintf(stderr
, "\n");
883 #endif /* KSSL_DEBUG */
886 if (l
== 0 || l
% bs
!= 0)
890 i
= EVP_Cipher(ds
, rec
->data
, rec
->input
, l
);
891 if ((EVP_CIPHER_flags(ds
->cipher
) & EVP_CIPH_FLAG_CUSTOM_CIPHER
)
894 return -1; /* AEAD can fail to verify MAC */
895 if (EVP_CIPHER_mode(enc
) == EVP_CIPH_GCM_MODE
&& !send
) {
896 rec
->data
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
897 rec
->input
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
898 rec
->length
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
903 fprintf(stderr
, "\trec->data=");
904 for (i
= 0; i
< l
; i
++)
905 fprintf(stderr
, " %02x", rec
->data
[i
]);
906 fprintf(stderr
, "\n");
908 #endif /* KSSL_DEBUG */
911 if (EVP_MD_CTX_md(s
->read_hash
) != NULL
)
912 mac_size
= EVP_MD_CTX_size(s
->read_hash
);
913 if ((bs
!= 1) && !send
)
914 ret
= tls1_cbc_remove_padding(s
, rec
, bs
, mac_size
);
921 int tls1_cert_verify_mac(SSL
*s
, int md_nid
, unsigned char *out
)
924 EVP_MD_CTX ctx
, *d
= NULL
;
927 if (s
->s3
->handshake_buffer
)
928 if (!ssl3_digest_cached_records(s
))
931 for (i
= 0; i
< SSL_MAX_DIGEST
; i
++) {
932 if (s
->s3
->handshake_dgst
[i
]
933 && EVP_MD_CTX_type(s
->s3
->handshake_dgst
[i
]) == md_nid
) {
934 d
= s
->s3
->handshake_dgst
[i
];
939 SSLerr(SSL_F_TLS1_CERT_VERIFY_MAC
, SSL_R_NO_REQUIRED_DIGEST
);
943 EVP_MD_CTX_init(&ctx
);
944 if (EVP_MD_CTX_copy_ex(&ctx
, d
) <=0
945 || EVP_DigestFinal_ex(&ctx
, out
, &ret
) <= 0)
947 EVP_MD_CTX_cleanup(&ctx
);
951 int tls1_final_finish_mac(SSL
*s
,
952 const char *str
, int slen
, unsigned char *out
)
956 unsigned char buf
[2 * EVP_MAX_MD_SIZE
];
957 unsigned char *q
, buf2
[12];
965 if (s
->s3
->handshake_buffer
)
966 if (!ssl3_digest_cached_records(s
))
969 EVP_MD_CTX_init(&ctx
);
971 for (idx
= 0; ssl_get_handshake_digest(idx
, &mask
, &md
); idx
++) {
972 if (mask
& ssl_get_algorithm2(s
)) {
973 int hashsize
= EVP_MD_size(md
);
974 EVP_MD_CTX
*hdgst
= s
->s3
->handshake_dgst
[idx
];
975 if (!hdgst
|| hashsize
< 0
976 || hashsize
> (int)(sizeof buf
- (size_t)(q
- buf
))) {
978 * internal error: 'buf' is too small for this cipersuite!
982 if (!EVP_MD_CTX_copy_ex(&ctx
, hdgst
) ||
983 !EVP_DigestFinal_ex(&ctx
, q
, &i
) ||
984 (i
!= (unsigned int)hashsize
))
991 if (!tls1_PRF(ssl_get_algorithm2(s
),
992 str
, slen
, buf
, (int)(q
- buf
), NULL
, 0, NULL
, 0, NULL
, 0,
993 s
->session
->master_key
, s
->session
->master_key_length
,
994 out
, buf2
, sizeof buf2
))
996 EVP_MD_CTX_cleanup(&ctx
);
998 OPENSSL_cleanse(buf
, (int)(q
- buf
));
999 OPENSSL_cleanse(buf2
, sizeof(buf2
));
1006 int tls1_mac(SSL
*ssl
, unsigned char *md
, int send
)
1011 size_t md_size
, orig_len
;
1013 EVP_MD_CTX hmac
, *mac_ctx
;
1014 unsigned char header
[13];
1015 int stream_mac
= (send
? (ssl
->mac_flags
& SSL_MAC_FLAG_WRITE_MAC_STREAM
)
1016 : (ssl
->mac_flags
& SSL_MAC_FLAG_READ_MAC_STREAM
));
1020 rec
= &(ssl
->s3
->wrec
);
1021 seq
= &(ssl
->s3
->write_sequence
[0]);
1022 hash
= ssl
->write_hash
;
1024 rec
= &(ssl
->s3
->rrec
);
1025 seq
= &(ssl
->s3
->read_sequence
[0]);
1026 hash
= ssl
->read_hash
;
1029 t
= EVP_MD_CTX_size(hash
);
1030 OPENSSL_assert(t
>= 0);
1033 /* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
1037 if (!EVP_MD_CTX_copy(&hmac
, hash
))
1042 if (SSL_IS_DTLS(ssl
)) {
1043 unsigned char dtlsseq
[8], *p
= dtlsseq
;
1045 s2n(send
? ssl
->d1
->w_epoch
: ssl
->d1
->r_epoch
, p
);
1046 memcpy(p
, &seq
[2], 6);
1048 memcpy(header
, dtlsseq
, 8);
1050 memcpy(header
, seq
, 8);
1053 * kludge: tls1_cbc_remove_padding passes padding length in rec->type
1055 orig_len
= rec
->length
+ md_size
+ ((unsigned int)rec
->type
>> 8);
1058 header
[8] = rec
->type
;
1059 header
[9] = (unsigned char)(ssl
->version
>> 8);
1060 header
[10] = (unsigned char)(ssl
->version
);
1061 header
[11] = (rec
->length
) >> 8;
1062 header
[12] = (rec
->length
) & 0xff;
1065 EVP_CIPHER_CTX_mode(ssl
->enc_read_ctx
) == EVP_CIPH_CBC_MODE
&&
1066 ssl3_cbc_record_digest_supported(mac_ctx
)) {
1068 * This is a CBC-encrypted record. We must avoid leaking any
1069 * timing-side channel information about how many blocks of data we
1070 * are hashing because that gives an attacker a timing-oracle.
1072 /* Final param == not SSLv3 */
1073 if (ssl3_cbc_digest_record(mac_ctx
,
1076 rec
->length
+ md_size
, orig_len
,
1077 ssl
->s3
->read_mac_secret
,
1078 ssl
->s3
->read_mac_secret_size
, 0) <= 0) {
1080 EVP_MD_CTX_cleanup(&hmac
);
1084 if (EVP_DigestSignUpdate(mac_ctx
, header
, sizeof(header
)) <= 0
1085 || EVP_DigestSignUpdate(mac_ctx
, rec
->input
, rec
->length
) <= 0
1086 || EVP_DigestSignFinal(mac_ctx
, md
, &md_size
) <= 0) {
1088 EVP_MD_CTX_cleanup(&hmac
);
1092 if (!send
&& FIPS_mode())
1093 tls_fips_digest_extra(ssl
->enc_read_ctx
,
1094 mac_ctx
, rec
->input
, rec
->length
, orig_len
);
1099 EVP_MD_CTX_cleanup(&hmac
);
1101 fprintf(stderr
, "seq=");
1104 for (z
= 0; z
< 8; z
++)
1105 fprintf(stderr
, "%02X ", seq
[z
]);
1106 fprintf(stderr
, "\n");
1108 fprintf(stderr
, "rec=");
1111 for (z
= 0; z
< rec
->length
; z
++)
1112 fprintf(stderr
, "%02X ", rec
->data
[z
]);
1113 fprintf(stderr
, "\n");
1117 if (!SSL_IS_DTLS(ssl
)) {
1118 for (i
= 7; i
>= 0; i
--) {
1127 for (z
= 0; z
< md_size
; z
++)
1128 fprintf(stderr
, "%02X ", md
[z
]);
1129 fprintf(stderr
, "\n");
1135 int tls1_generate_master_secret(SSL
*s
, unsigned char *out
, unsigned char *p
,
1138 unsigned char buff
[SSL_MAX_MASTER_KEY_LENGTH
];
1139 const void *co
= NULL
, *so
= NULL
;
1140 int col
= 0, sol
= 0;
1143 fprintf(stderr
, "tls1_generate_master_secret(%p,%p, %p, %d)\n", s
, out
, p
,
1145 #endif /* KSSL_DEBUG */
1147 #ifdef TLSEXT_TYPE_opaque_prf_input
1148 if (s
->s3
->client_opaque_prf_input
!= NULL
1149 && s
->s3
->server_opaque_prf_input
!= NULL
1150 && s
->s3
->client_opaque_prf_input_len
> 0
1151 && s
->s3
->client_opaque_prf_input_len
==
1152 s
->s3
->server_opaque_prf_input_len
) {
1153 co
= s
->s3
->client_opaque_prf_input
;
1154 col
= s
->s3
->server_opaque_prf_input_len
;
1155 so
= s
->s3
->server_opaque_prf_input
;
1157 * must be same as col (see
1158 * draft-rescorla-tls-opaque-prf-input-00.txt, section 3.1)
1160 sol
= s
->s3
->client_opaque_prf_input_len
;
1164 tls1_PRF(ssl_get_algorithm2(s
),
1165 TLS_MD_MASTER_SECRET_CONST
, TLS_MD_MASTER_SECRET_CONST_SIZE
,
1166 s
->s3
->client_random
, SSL3_RANDOM_SIZE
,
1168 s
->s3
->server_random
, SSL3_RANDOM_SIZE
,
1169 so
, sol
, p
, len
, s
->session
->master_key
, buff
, sizeof buff
);
1170 OPENSSL_cleanse(buff
, sizeof buff
);
1172 fprintf(stderr
, "Premaster Secret:\n");
1173 BIO_dump_fp(stderr
, (char *)p
, len
);
1174 fprintf(stderr
, "Client Random:\n");
1175 BIO_dump_fp(stderr
, (char *)s
->s3
->client_random
, SSL3_RANDOM_SIZE
);
1176 fprintf(stderr
, "Server Random:\n");
1177 BIO_dump_fp(stderr
, (char *)s
->s3
->server_random
, SSL3_RANDOM_SIZE
);
1178 fprintf(stderr
, "Master Secret:\n");
1179 BIO_dump_fp(stderr
, (char *)s
->session
->master_key
,
1180 SSL3_MASTER_SECRET_SIZE
);
1183 #ifdef OPENSSL_SSL_TRACE_CRYPTO
1184 if (s
->msg_callback
) {
1185 s
->msg_callback(2, s
->version
, TLS1_RT_CRYPTO_PREMASTER
,
1186 p
, len
, s
, s
->msg_callback_arg
);
1187 s
->msg_callback(2, s
->version
, TLS1_RT_CRYPTO_CLIENT_RANDOM
,
1188 s
->s3
->client_random
, SSL3_RANDOM_SIZE
,
1189 s
, s
->msg_callback_arg
);
1190 s
->msg_callback(2, s
->version
, TLS1_RT_CRYPTO_SERVER_RANDOM
,
1191 s
->s3
->server_random
, SSL3_RANDOM_SIZE
,
1192 s
, s
->msg_callback_arg
);
1193 s
->msg_callback(2, s
->version
, TLS1_RT_CRYPTO_MASTER
,
1194 s
->session
->master_key
,
1195 SSL3_MASTER_SECRET_SIZE
, s
, s
->msg_callback_arg
);
1200 fprintf(stderr
, "tls1_generate_master_secret() complete\n");
1201 #endif /* KSSL_DEBUG */
1202 return (SSL3_MASTER_SECRET_SIZE
);
1205 int tls1_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1206 const char *label
, size_t llen
,
1207 const unsigned char *context
,
1208 size_t contextlen
, int use_context
)
1210 unsigned char *buff
;
1211 unsigned char *val
= NULL
;
1212 size_t vallen
, currentvalpos
;
1216 fprintf(stderr
, "tls1_export_keying_material(%p,%p,%lu,%s,%lu,%p,%lu)\n",
1217 s
, out
, olen
, label
, llen
, context
, contextlen
);
1218 #endif /* KSSL_DEBUG */
1220 buff
= OPENSSL_malloc(olen
);
1225 * construct PRF arguments we construct the PRF argument ourself rather
1226 * than passing separate values into the TLS PRF to ensure that the
1227 * concatenation of values does not create a prohibited label.
1229 vallen
= llen
+ SSL3_RANDOM_SIZE
* 2;
1231 vallen
+= 2 + contextlen
;
1234 val
= OPENSSL_malloc(vallen
);
1238 memcpy(val
+ currentvalpos
, (unsigned char *)label
, llen
);
1239 currentvalpos
+= llen
;
1240 memcpy(val
+ currentvalpos
, s
->s3
->client_random
, SSL3_RANDOM_SIZE
);
1241 currentvalpos
+= SSL3_RANDOM_SIZE
;
1242 memcpy(val
+ currentvalpos
, s
->s3
->server_random
, SSL3_RANDOM_SIZE
);
1243 currentvalpos
+= SSL3_RANDOM_SIZE
;
1246 val
[currentvalpos
] = (contextlen
>> 8) & 0xff;
1248 val
[currentvalpos
] = contextlen
& 0xff;
1250 if ((contextlen
> 0) || (context
!= NULL
)) {
1251 memcpy(val
+ currentvalpos
, context
, contextlen
);
1256 * disallow prohibited labels note that SSL3_RANDOM_SIZE > max(prohibited
1257 * label len) = 15, so size of val > max(prohibited label len) = 15 and
1258 * the comparisons won't have buffer overflow
1260 if (memcmp(val
, TLS_MD_CLIENT_FINISH_CONST
,
1261 TLS_MD_CLIENT_FINISH_CONST_SIZE
) == 0)
1263 if (memcmp(val
, TLS_MD_SERVER_FINISH_CONST
,
1264 TLS_MD_SERVER_FINISH_CONST_SIZE
) == 0)
1266 if (memcmp(val
, TLS_MD_MASTER_SECRET_CONST
,
1267 TLS_MD_MASTER_SECRET_CONST_SIZE
) == 0)
1269 if (memcmp(val
, TLS_MD_KEY_EXPANSION_CONST
,
1270 TLS_MD_KEY_EXPANSION_CONST_SIZE
) == 0)
1273 rv
= tls1_PRF(ssl_get_algorithm2(s
),
1279 s
->session
->master_key
, s
->session
->master_key_length
,
1281 OPENSSL_cleanse(val
, vallen
);
1282 OPENSSL_cleanse(buff
, olen
);
1285 fprintf(stderr
, "tls1_export_keying_material() complete\n");
1286 #endif /* KSSL_DEBUG */
1289 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL
,
1290 SSL_R_TLS_ILLEGAL_EXPORTER_LABEL
);
1294 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL
, ERR_R_MALLOC_FAILURE
);
1304 int tls1_alert_code(int code
)
1307 case SSL_AD_CLOSE_NOTIFY
:
1308 return (SSL3_AD_CLOSE_NOTIFY
);
1309 case SSL_AD_UNEXPECTED_MESSAGE
:
1310 return (SSL3_AD_UNEXPECTED_MESSAGE
);
1311 case SSL_AD_BAD_RECORD_MAC
:
1312 return (SSL3_AD_BAD_RECORD_MAC
);
1313 case SSL_AD_DECRYPTION_FAILED
:
1314 return (TLS1_AD_DECRYPTION_FAILED
);
1315 case SSL_AD_RECORD_OVERFLOW
:
1316 return (TLS1_AD_RECORD_OVERFLOW
);
1317 case SSL_AD_DECOMPRESSION_FAILURE
:
1318 return (SSL3_AD_DECOMPRESSION_FAILURE
);
1319 case SSL_AD_HANDSHAKE_FAILURE
:
1320 return (SSL3_AD_HANDSHAKE_FAILURE
);
1321 case SSL_AD_NO_CERTIFICATE
:
1323 case SSL_AD_BAD_CERTIFICATE
:
1324 return (SSL3_AD_BAD_CERTIFICATE
);
1325 case SSL_AD_UNSUPPORTED_CERTIFICATE
:
1326 return (SSL3_AD_UNSUPPORTED_CERTIFICATE
);
1327 case SSL_AD_CERTIFICATE_REVOKED
:
1328 return (SSL3_AD_CERTIFICATE_REVOKED
);
1329 case SSL_AD_CERTIFICATE_EXPIRED
:
1330 return (SSL3_AD_CERTIFICATE_EXPIRED
);
1331 case SSL_AD_CERTIFICATE_UNKNOWN
:
1332 return (SSL3_AD_CERTIFICATE_UNKNOWN
);
1333 case SSL_AD_ILLEGAL_PARAMETER
:
1334 return (SSL3_AD_ILLEGAL_PARAMETER
);
1335 case SSL_AD_UNKNOWN_CA
:
1336 return (TLS1_AD_UNKNOWN_CA
);
1337 case SSL_AD_ACCESS_DENIED
:
1338 return (TLS1_AD_ACCESS_DENIED
);
1339 case SSL_AD_DECODE_ERROR
:
1340 return (TLS1_AD_DECODE_ERROR
);
1341 case SSL_AD_DECRYPT_ERROR
:
1342 return (TLS1_AD_DECRYPT_ERROR
);
1343 case SSL_AD_EXPORT_RESTRICTION
:
1344 return (TLS1_AD_EXPORT_RESTRICTION
);
1345 case SSL_AD_PROTOCOL_VERSION
:
1346 return (TLS1_AD_PROTOCOL_VERSION
);
1347 case SSL_AD_INSUFFICIENT_SECURITY
:
1348 return (TLS1_AD_INSUFFICIENT_SECURITY
);
1349 case SSL_AD_INTERNAL_ERROR
:
1350 return (TLS1_AD_INTERNAL_ERROR
);
1351 case SSL_AD_USER_CANCELLED
:
1352 return (TLS1_AD_USER_CANCELLED
);
1353 case SSL_AD_NO_RENEGOTIATION
:
1354 return (TLS1_AD_NO_RENEGOTIATION
);
1355 case SSL_AD_UNSUPPORTED_EXTENSION
:
1356 return (TLS1_AD_UNSUPPORTED_EXTENSION
);
1357 case SSL_AD_CERTIFICATE_UNOBTAINABLE
:
1358 return (TLS1_AD_CERTIFICATE_UNOBTAINABLE
);
1359 case SSL_AD_UNRECOGNIZED_NAME
:
1360 return (TLS1_AD_UNRECOGNIZED_NAME
);
1361 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE
:
1362 return (TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
);
1363 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE
:
1364 return (TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
);
1365 case SSL_AD_UNKNOWN_PSK_IDENTITY
:
1366 return (TLS1_AD_UNKNOWN_PSK_IDENTITY
);
1367 case SSL_AD_INAPPROPRIATE_FALLBACK
:
1368 return (TLS1_AD_INAPPROPRIATE_FALLBACK
);
1370 /* not appropriate for TLS, not used for DTLS */
1371 case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
:
1372 return (DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
);