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
;
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_set_flags(&ctx
, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW
);
175 EVP_MD_CTX_set_flags(&ctx_tmp
, 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
,NULL
,md
, NULL
, mac_key
))
181 if (!EVP_DigestSignInit(&ctx_tmp
,NULL
,md
, NULL
, mac_key
))
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
))
198 /* Reinit mac contexts */
199 if (!EVP_DigestSignInit(&ctx
,NULL
,md
, NULL
, mac_key
))
201 if (!EVP_DigestSignInit(&ctx_tmp
,NULL
,md
, NULL
, mac_key
))
203 if (!EVP_DigestSignUpdate(&ctx
,A1
,A1_len
))
205 if (!EVP_DigestSignUpdate(&ctx_tmp
,A1
,A1_len
))
207 if (seed1
&& !EVP_DigestSignUpdate(&ctx
,seed1
,seed1_len
))
209 if (seed2
&& !EVP_DigestSignUpdate(&ctx
,seed2
,seed2_len
))
211 if (seed3
&& !EVP_DigestSignUpdate(&ctx
,seed3
,seed3_len
))
213 if (seed4
&& !EVP_DigestSignUpdate(&ctx
,seed4
,seed4_len
))
215 if (seed5
&& !EVP_DigestSignUpdate(&ctx
,seed5
,seed5_len
))
220 if (!EVP_DigestSignFinal(&ctx
,out
,&j
))
224 /* calc the next A1 value */
225 if (!EVP_DigestSignFinal(&ctx_tmp
,A1
,&A1_len
))
230 if (!EVP_DigestSignFinal(&ctx
,A1
,&A1_len
))
238 EVP_PKEY_free(mac_key
);
239 EVP_MD_CTX_cleanup(&ctx
);
240 EVP_MD_CTX_cleanup(&ctx_tmp
);
241 OPENSSL_cleanse(A1
,sizeof(A1
));
245 /* seed1 through seed5 are virtually concatenated */
246 static int tls1_PRF(long digest_mask
,
247 const void *seed1
, int seed1_len
,
248 const void *seed2
, int seed2_len
,
249 const void *seed3
, int seed3_len
,
250 const void *seed4
, int seed4_len
,
251 const void *seed5
, int seed5_len
,
252 const unsigned char *sec
, int slen
,
254 unsigned char *out2
, int olen
)
257 const unsigned char *S1
;
262 /* Count number of digests and partition sec evenly */
264 for (idx
=0;ssl_get_handshake_digest(idx
,&m
,&md
);idx
++) {
265 if ((m
<<TLS1_PRF_DGST_SHIFT
) & digest_mask
) count
++;
272 for (idx
=0;ssl_get_handshake_digest(idx
,&m
,&md
);idx
++) {
273 if ((m
<<TLS1_PRF_DGST_SHIFT
) & digest_mask
) {
275 SSLerr(SSL_F_TLS1_PRF
,
276 SSL_R_UNSUPPORTED_DIGEST_TYPE
);
279 if (!tls1_P_hash(md
,S1
,len
+(slen
&1),
280 seed1
,seed1_len
,seed2
,seed2_len
,seed3
,seed3_len
,seed4
,seed4_len
,seed5
,seed5_len
,
284 for (i
=0; i
<olen
; i
++)
294 static int tls1_generate_key_block(SSL
*s
, unsigned char *km
,
295 unsigned char *tmp
, int num
)
298 ret
= tls1_PRF(ssl_get_algorithm2(s
),
299 TLS_MD_KEY_EXPANSION_CONST
,TLS_MD_KEY_EXPANSION_CONST_SIZE
,
300 s
->s3
->server_random
,SSL3_RANDOM_SIZE
,
301 s
->s3
->client_random
,SSL3_RANDOM_SIZE
,
303 s
->session
->master_key
,s
->session
->master_key_length
,
306 printf("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
++)
312 printf("%02X", s
->session
->master_key
[i
]);
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 printf("tls1_change_cipher_state(which= %d) w/\n", which
);
353 printf("\talg= %ld/%ld, comp= %p\n",
354 s
->s3
->tmp
.new_cipher
->algorithm_mkey
,
355 s
->s3
->tmp
.new_cipher
->algorithm_auth
,
357 printf("\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c
);
358 printf("\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n",
359 c
->nid
,c
->block_size
,c
->key_len
,c
->iv_len
);
360 printf("\tkey_block: len= %d, data= ", s
->s3
->tmp
.key_block_length
);
363 for (i
=0; i
<s
->s3
->tmp
.key_block_length
; i
++)
364 printf("%02x", s
->s3
->tmp
.key_block
[i
]); printf("\n");
366 #endif /* KSSL_DEBUG */
368 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
=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX
))) == NULL
)
380 /* make sure it's intialized in case we exit later with an error */
381 EVP_CIPHER_CTX_init(s
->enc_read_ctx
);
383 mac_ctx
=ssl_replace_hash(&s
->read_hash
,NULL
);
384 #ifndef OPENSSL_NO_COMP
385 if (s
->expand
!= NULL
)
387 COMP_CTX_free(s
->expand
);
392 s
->expand
=COMP_CTX_new(comp
->method
);
393 if (s
->expand
== NULL
)
395 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
,SSL_R_COMPRESSION_LIBRARY_ERROR
);
398 if (s
->s3
->rrec
.comp
== NULL
)
399 s
->s3
->rrec
.comp
=(unsigned char *)
400 OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH
);
401 if (s
->s3
->rrec
.comp
== NULL
)
405 /* this is done by dtls1_reset_seq_numbers for DTLS1_VERSION */
406 if (s
->version
!= DTLS1_VERSION
)
407 memset(&(s
->s3
->read_sequence
[0]),0,8);
408 mac_secret
= &(s
->s3
->read_mac_secret
[0]);
409 mac_secret_size
=&(s
->s3
->read_mac_secret_size
);
413 if (s
->s3
->tmp
.new_cipher
->algorithm2
& TLS1_STREAM_MAC
)
414 s
->mac_flags
|= SSL_MAC_FLAG_WRITE_MAC_STREAM
;
416 s
->mac_flags
&= ~SSL_MAC_FLAG_WRITE_MAC_STREAM
;
417 if (s
->enc_write_ctx
!= NULL
)
419 else if ((s
->enc_write_ctx
=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX
))) == NULL
)
422 /* make sure it's intialized in case we exit later with an error */
423 EVP_CIPHER_CTX_init(s
->enc_write_ctx
);
424 dd
= s
->enc_write_ctx
;
425 mac_ctx
= ssl_replace_hash(&s
->write_hash
,NULL
);
426 #ifndef OPENSSL_NO_COMP
427 if (s
->compress
!= NULL
)
429 COMP_CTX_free(s
->compress
);
434 s
->compress
=COMP_CTX_new(comp
->method
);
435 if (s
->compress
== NULL
)
437 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
,SSL_R_COMPRESSION_LIBRARY_ERROR
);
442 /* this is done by dtls1_reset_seq_numbers for DTLS1_VERSION */
443 if (s
->version
!= DTLS1_VERSION
)
444 memset(&(s
->s3
->write_sequence
[0]),0,8);
445 mac_secret
= &(s
->s3
->write_mac_secret
[0]);
446 mac_secret_size
= &(s
->s3
->write_mac_secret_size
);
450 EVP_CIPHER_CTX_cleanup(dd
);
452 p
=s
->s3
->tmp
.key_block
;
453 i
=*mac_secret_size
=s
->s3
->tmp
.new_mac_secret_size
;
455 cl
=EVP_CIPHER_key_length(c
);
456 j
=is_export
? (cl
< SSL_C_EXPORT_KEYLENGTH(s
->s3
->tmp
.new_cipher
) ?
457 cl
: SSL_C_EXPORT_KEYLENGTH(s
->s3
->tmp
.new_cipher
)) : cl
;
458 /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
459 /* If GCM mode only part of IV comes from PRF */
460 if (EVP_CIPHER_mode(c
) == EVP_CIPH_GCM_MODE
)
461 k
= EVP_GCM_TLS_FIXED_IV_LEN
;
463 k
=EVP_CIPHER_iv_length(c
);
464 if ( (which
== SSL3_CHANGE_CIPHER_CLIENT_WRITE
) ||
465 (which
== SSL3_CHANGE_CIPHER_SERVER_READ
))
468 key
= &(p
[ n
]); n
+=j
+j
;
469 iv
= &(p
[ n
]); n
+=k
+k
;
470 exp_label
=(unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST
;
471 exp_label_len
=TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE
;
477 ms
= &(p
[ n
]); n
+=i
+j
;
478 key
= &(p
[ n
]); n
+=j
+k
;
480 exp_label
=(unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST
;
481 exp_label_len
=TLS_MD_SERVER_WRITE_KEY_CONST_SIZE
;
485 if (n
> s
->s3
->tmp
.key_block_length
)
487 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
,ERR_R_INTERNAL_ERROR
);
491 memcpy(mac_secret
,ms
,i
);
493 if (!(EVP_CIPHER_flags(c
)&EVP_CIPH_FLAG_AEAD_CIPHER
))
495 mac_key
= EVP_PKEY_new_mac_key(mac_type
, NULL
,
496 mac_secret
,*mac_secret_size
);
497 EVP_DigestSignInit(mac_ctx
,NULL
,m
,NULL
,mac_key
);
498 EVP_PKEY_free(mac_key
);
501 printf("which = %04X\nmac key=",which
);
502 { int z
; for (z
=0; z
<i
; z
++) printf("%02X%c",ms
[z
],((z
+1)%16)?' ':'\n'); }
506 /* In here I set both the read and write key/iv to the
507 * same value since only the correct one will be used :-).
509 if (!tls1_PRF(ssl_get_algorithm2(s
),
510 exp_label
,exp_label_len
,
511 s
->s3
->client_random
,SSL3_RANDOM_SIZE
,
512 s
->s3
->server_random
,SSL3_RANDOM_SIZE
,
514 key
,j
,tmp1
,tmp2
,EVP_CIPHER_key_length(c
)))
520 if (!tls1_PRF(ssl_get_algorithm2(s
),
521 TLS_MD_IV_BLOCK_CONST
,TLS_MD_IV_BLOCK_CONST_SIZE
,
522 s
->s3
->client_random
,SSL3_RANDOM_SIZE
,
523 s
->s3
->server_random
,SSL3_RANDOM_SIZE
,
525 empty
,0,iv1
,iv2
,k
*2))
534 s
->session
->key_arg_length
=0;
538 printf("EVP_CipherInit_ex(dd,c,key=,iv=,which)\n");
539 printf("\tkey= "); for (i
=0; i
<c
->key_len
; i
++) printf("%02x", key
[i
]);
541 printf("\t iv= "); for (i
=0; i
<c
->iv_len
; i
++) printf("%02x", iv
[i
]);
544 #endif /* KSSL_DEBUG */
546 if (EVP_CIPHER_mode(c
) == EVP_CIPH_GCM_MODE
)
548 EVP_CipherInit_ex(dd
,c
,NULL
,key
,NULL
,(which
& SSL3_CC_WRITE
));
549 EVP_CIPHER_CTX_ctrl(dd
, EVP_CTRL_GCM_SET_IV_FIXED
, k
, iv
);
552 EVP_CipherInit_ex(dd
,c
,NULL
,key
,iv
,(which
& SSL3_CC_WRITE
));
554 /* Needed for "composite" AEADs, such as RC4-HMAC-MD5 */
555 if ((EVP_CIPHER_flags(c
)&EVP_CIPH_FLAG_AEAD_CIPHER
) && *mac_secret_size
)
556 EVP_CIPHER_CTX_ctrl(dd
,EVP_CTRL_AEAD_SET_MAC_KEY
,
557 *mac_secret_size
,mac_secret
);
559 #ifdef OPENSSL_SSL_TRACE_CRYPTO
562 int wh
= which
& SSL3_CC_WRITE
? TLS1_RT_CRYPTO_WRITE
: 0;
563 if (*mac_secret_size
)
564 s
->msg_callback(2, s
->version
, wh
| TLS1_RT_CRYPTO_MAC
,
565 mac_secret
, *mac_secret_size
,
566 s
, s
->msg_callback_arg
);
568 s
->msg_callback(2, s
->version
, wh
| TLS1_RT_CRYPTO_KEY
,
570 s
, s
->msg_callback_arg
);
573 if (EVP_CIPHER_mode(c
) == EVP_CIPH_GCM_MODE
)
574 wh
|= TLS1_RT_CRYPTO_FIXED_IV
;
576 wh
|= TLS1_RT_CRYPTO_IV
;
577 s
->msg_callback(2, s
->version
, wh
, iv
, k
,
578 s
, s
->msg_callback_arg
);
584 printf("which = %04X\nkey=",which
);
585 { int z
; for (z
=0; z
<EVP_CIPHER_key_length(c
); z
++) printf("%02X%c",key
[z
],((z
+1)%16)?' ':'\n'); }
587 { int z
; for (z
=0; z
<k
; z
++) printf("%02X%c",iv
[z
],((z
+1)%16)?' ':'\n'); }
591 OPENSSL_cleanse(tmp1
,sizeof(tmp1
));
592 OPENSSL_cleanse(tmp2
,sizeof(tmp1
));
593 OPENSSL_cleanse(iv1
,sizeof(iv1
));
594 OPENSSL_cleanse(iv2
,sizeof(iv2
));
597 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE
,ERR_R_MALLOC_FAILURE
);
602 int tls1_setup_key_block(SSL
*s
)
604 unsigned char *p1
,*p2
=NULL
;
609 int mac_type
= NID_undef
,mac_secret_size
=0;
613 printf ("tls1_setup_key_block()\n");
614 #endif /* KSSL_DEBUG */
616 if (s
->s3
->tmp
.key_block_length
!= 0)
619 if (!ssl_cipher_get_evp(s
->session
,&c
,&hash
,&mac_type
,&mac_secret_size
,&comp
))
621 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK
,SSL_R_CIPHER_OR_HASH_UNAVAILABLE
);
625 s
->s3
->tmp
.new_sym_enc
=c
;
626 s
->s3
->tmp
.new_hash
=hash
;
627 s
->s3
->tmp
.new_mac_pkey_type
= mac_type
;
628 s
->s3
->tmp
.new_mac_secret_size
= mac_secret_size
;
629 num
=EVP_CIPHER_key_length(c
)+mac_secret_size
+EVP_CIPHER_iv_length(c
);
632 ssl3_cleanup_key_block(s
);
634 if ((p1
=(unsigned char *)OPENSSL_malloc(num
)) == NULL
)
636 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK
,ERR_R_MALLOC_FAILURE
);
640 s
->s3
->tmp
.key_block_length
=num
;
641 s
->s3
->tmp
.key_block
=p1
;
643 if ((p2
=(unsigned char *)OPENSSL_malloc(num
)) == NULL
)
645 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK
,ERR_R_MALLOC_FAILURE
);
650 printf("client random\n");
651 { int z
; for (z
=0; z
<SSL3_RANDOM_SIZE
; z
++) printf("%02X%c",s
->s3
->client_random
[z
],((z
+1)%16)?' ':'\n'); }
652 printf("server random\n");
653 { int z
; for (z
=0; z
<SSL3_RANDOM_SIZE
; z
++) printf("%02X%c",s
->s3
->server_random
[z
],((z
+1)%16)?' ':'\n'); }
654 printf("pre-master\n");
655 { int z
; for (z
=0; z
<s
->session
->master_key_length
; z
++) printf("%02X%c",s
->session
->master_key
[z
],((z
+1)%16)?' ':'\n'); }
657 if (!tls1_generate_key_block(s
,p1
,p2
,num
))
660 printf("\nkey block\n");
661 { int z
; for (z
=0; z
<num
; z
++) printf("%02X%c",p1
[z
],((z
+1)%16)?' ':'\n'); }
664 if (!(s
->options
& SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS
)
665 && s
->method
->version
<= TLS1_VERSION
)
667 /* enable vulnerability countermeasure for CBC ciphers with
668 * known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt)
670 s
->s3
->need_empty_fragments
= 1;
672 if (s
->session
->cipher
!= NULL
)
674 if (s
->session
->cipher
->algorithm_enc
== SSL_eNULL
)
675 s
->s3
->need_empty_fragments
= 0;
677 #ifndef OPENSSL_NO_RC4
678 if (s
->session
->cipher
->algorithm_enc
== SSL_RC4
)
679 s
->s3
->need_empty_fragments
= 0;
688 OPENSSL_cleanse(p2
,num
);
694 /* tls1_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively.
697 * 0: (in non-constant time) if the record is publically invalid (i.e. too
699 * 1: if the record's padding is valid / the encryption was successful.
700 * -1: if the record's padding/AEAD-authenticator is invalid or, if sending,
701 * an internal error occurred.
703 int tls1_enc(SSL
*s
, int send
)
708 int bs
,i
,j
,k
,pad
=0,ret
,mac_size
=0;
709 const EVP_CIPHER
*enc
;
713 if (EVP_MD_CTX_md(s
->write_hash
))
715 int n
=EVP_MD_CTX_size(s
->write_hash
);
716 OPENSSL_assert(n
>= 0);
720 if (s
->enc_write_ctx
== NULL
)
725 enc
=EVP_CIPHER_CTX_cipher(s
->enc_write_ctx
);
726 /* For TLSv1.1 and later explicit IV */
727 if (SSL_USE_EXPLICIT_IV(s
)
728 && EVP_CIPHER_mode(enc
) == EVP_CIPH_CBC_MODE
)
729 ivlen
= EVP_CIPHER_iv_length(enc
);
734 if ( rec
->data
!= rec
->input
)
735 /* we can't write into the input stream:
736 * Can this ever happen?? (steve)
739 "%s:%d: rec->data != rec->input\n",
741 else if (RAND_bytes(rec
->input
, ivlen
) <= 0)
748 if (EVP_MD_CTX_md(s
->read_hash
))
750 int n
=EVP_MD_CTX_size(s
->read_hash
);
751 OPENSSL_assert(n
>= 0);
755 if (s
->enc_read_ctx
== NULL
)
758 enc
=EVP_CIPHER_CTX_cipher(s
->enc_read_ctx
);
762 printf("tls1_enc(%d)\n", send
);
763 #endif /* KSSL_DEBUG */
765 if ((s
->session
== NULL
) || (ds
== NULL
) || (enc
== NULL
))
767 memmove(rec
->data
,rec
->input
,rec
->length
);
768 rec
->input
=rec
->data
;
774 bs
=EVP_CIPHER_block_size(ds
->cipher
);
776 if (EVP_CIPHER_flags(ds
->cipher
)&EVP_CIPH_FLAG_AEAD_CIPHER
)
778 unsigned char buf
[13],*seq
;
780 seq
= send
?s
->s3
->write_sequence
:s
->s3
->read_sequence
;
784 unsigned char dtlsseq
[9],*p
=dtlsseq
;
786 s2n(send
?s
->d1
->w_epoch
:s
->d1
->r_epoch
,p
);
788 memcpy(buf
,dtlsseq
,8);
793 for (i
=7; i
>=0; i
--) /* increment */
796 if (seq
[i
] != 0) break;
801 buf
[9]=(unsigned char)(s
->version
>>8);
802 buf
[10]=(unsigned char)(s
->version
);
803 buf
[11]=rec
->length
>>8;
804 buf
[12]=rec
->length
&0xff;
805 pad
=EVP_CIPHER_CTX_ctrl(ds
,EVP_CTRL_AEAD_TLS1_AAD
,13,buf
);
812 else if ((bs
!= 1) && send
)
816 /* Add weird padding of upto 256 bytes */
818 /* we need to add 'i' padding bytes of value j */
820 if (s
->options
& SSL_OP_TLS_BLOCK_PADDING_BUG
)
822 if (s
->s3
->flags
& TLS1_FLAGS_TLS_PADDING_BUG
)
825 for (k
=(int)l
; k
<(int)(l
+i
); k
++)
834 printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n",
835 ds
,rec
->data
,rec
->input
,l
);
836 printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n",
837 ds
->buf_len
, ds
->cipher
->key_len
,
838 DES_KEY_SZ
, DES_SCHEDULE_SZ
,
841 for (i
=0; i
<ds
->cipher
->iv_len
; i
++) printf("%02X", ds
->iv
[i
]);
843 printf("\trec->input=");
844 for (ui
=0; ui
<l
; ui
++) printf(" %02x", rec
->input
[ui
]);
847 #endif /* KSSL_DEBUG */
851 if (l
== 0 || l
%bs
!= 0)
855 i
= EVP_Cipher(ds
,rec
->data
,rec
->input
,l
);
856 if ((EVP_CIPHER_flags(ds
->cipher
)&EVP_CIPH_FLAG_CUSTOM_CIPHER
)
859 return -1; /* AEAD can fail to verify MAC */
860 if (EVP_CIPHER_mode(enc
) == EVP_CIPH_GCM_MODE
&& !send
)
862 rec
->data
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
863 rec
->input
+= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
864 rec
->length
-= EVP_GCM_TLS_EXPLICIT_IV_LEN
;
870 printf("\trec->data=");
872 printf(" %02x", rec
->data
[i
]); printf("\n");
874 #endif /* KSSL_DEBUG */
877 if (EVP_MD_CTX_md(s
->read_hash
) != NULL
)
878 mac_size
= EVP_MD_CTX_size(s
->read_hash
);
879 if ((bs
!= 1) && !send
)
880 ret
= tls1_cbc_remove_padding(s
, rec
, bs
, mac_size
);
887 int tls1_cert_verify_mac(SSL
*s
, int md_nid
, unsigned char *out
)
890 EVP_MD_CTX ctx
, *d
=NULL
;
893 if (s
->s3
->handshake_buffer
)
894 if (!ssl3_digest_cached_records(s
))
897 for (i
=0;i
<SSL_MAX_DIGEST
;i
++)
899 if (s
->s3
->handshake_dgst
[i
]&&EVP_MD_CTX_type(s
->s3
->handshake_dgst
[i
])==md_nid
)
901 d
=s
->s3
->handshake_dgst
[i
];
906 SSLerr(SSL_F_TLS1_CERT_VERIFY_MAC
,SSL_R_NO_REQUIRED_DIGEST
);
910 EVP_MD_CTX_init(&ctx
);
911 EVP_MD_CTX_copy_ex(&ctx
,d
);
912 EVP_DigestFinal_ex(&ctx
,out
,&ret
);
913 EVP_MD_CTX_cleanup(&ctx
);
917 int tls1_final_finish_mac(SSL
*s
,
918 const char *str
, int slen
, unsigned char *out
)
922 unsigned char buf
[2*EVP_MAX_MD_SIZE
];
923 unsigned char *q
,buf2
[12];
931 if (s
->s3
->handshake_buffer
)
932 if (!ssl3_digest_cached_records(s
))
935 EVP_MD_CTX_init(&ctx
);
937 for (idx
=0;ssl_get_handshake_digest(idx
,&mask
,&md
);idx
++)
939 if (mask
& ssl_get_algorithm2(s
))
941 int hashsize
= EVP_MD_size(md
);
942 if (hashsize
< 0 || hashsize
> (int)(sizeof buf
- (size_t)(q
-buf
)))
944 /* internal error: 'buf' is too small for this cipersuite! */
949 EVP_MD_CTX_copy_ex(&ctx
,s
->s3
->handshake_dgst
[idx
]);
950 EVP_DigestFinal_ex(&ctx
,q
,&i
);
951 if (i
!= (unsigned int)hashsize
) /* can't really happen */
958 if (!tls1_PRF(ssl_get_algorithm2(s
),
959 str
,slen
, buf
,(int)(q
-buf
), NULL
,0, NULL
,0, NULL
,0,
960 s
->session
->master_key
,s
->session
->master_key_length
,
961 out
,buf2
,sizeof buf2
))
963 EVP_MD_CTX_cleanup(&ctx
);
971 int tls1_mac(SSL
*ssl
, unsigned char *md
, int send
)
978 EVP_MD_CTX hmac
, *mac_ctx
;
979 unsigned char header
[13];
980 int stream_mac
= (send
?(ssl
->mac_flags
& SSL_MAC_FLAG_WRITE_MAC_STREAM
):(ssl
->mac_flags
&SSL_MAC_FLAG_READ_MAC_STREAM
));
985 rec
= &(ssl
->s3
->wrec
);
986 seq
= &(ssl
->s3
->write_sequence
[0]);
987 hash
=ssl
->write_hash
;
991 rec
= &(ssl
->s3
->rrec
);
992 seq
= &(ssl
->s3
->read_sequence
[0]);
996 t
=EVP_MD_CTX_size(hash
);
997 OPENSSL_assert(t
>= 0);
1000 /* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
1007 EVP_MD_CTX_copy(&hmac
,hash
);
1011 if (SSL_IS_DTLS(ssl
))
1013 unsigned char dtlsseq
[8],*p
=dtlsseq
;
1015 s2n(send
?ssl
->d1
->w_epoch
:ssl
->d1
->r_epoch
, p
);
1016 memcpy (p
,&seq
[2],6);
1018 memcpy(header
, dtlsseq
, 8);
1021 memcpy(header
, seq
, 8);
1023 header
[8]=rec
->type
;
1024 header
[9]=(unsigned char)(ssl
->version
>>8);
1025 header
[10]=(unsigned char)(ssl
->version
);
1026 header
[11]=(rec
->length
)>>8;
1027 header
[12]=(rec
->length
)&0xff;
1030 EVP_CIPHER_CTX_mode(ssl
->enc_read_ctx
) == EVP_CIPH_CBC_MODE
&&
1031 ssl3_cbc_record_digest_supported(mac_ctx
))
1033 /* This is a CBC-encrypted record. We must avoid leaking any
1034 * timing-side channel information about how many blocks of
1035 * data we are hashing because that gives an attacker a
1037 ssl3_cbc_digest_record(
1041 rec
->length
+ md_size
, rec
->orig_len
,
1042 ssl
->s3
->read_mac_secret
,
1043 ssl
->s3
->read_mac_secret_size
,
1048 EVP_DigestSignUpdate(mac_ctx
,header
,sizeof(header
));
1049 EVP_DigestSignUpdate(mac_ctx
,rec
->input
,rec
->length
);
1050 t
=EVP_DigestSignFinal(mac_ctx
,md
,&md_size
);
1051 OPENSSL_assert(t
> 0);
1053 if (!send
&& FIPS_mode())
1054 tls_fips_digest_extra(
1056 mac_ctx
, rec
->input
,
1057 rec
->length
, rec
->orig_len
);
1062 EVP_MD_CTX_cleanup(&hmac
);
1065 {unsigned int z
; for (z
=0; z
<md_size
; z
++) printf("%02X ",mac_sec
[z
]); printf("\n"); }
1067 {int z
; for (z
=0; z
<8; z
++) printf("%02X ",seq
[z
]); printf("\n"); }
1069 {int z
; for (z
=0; z
<5; z
++) printf("%02X ",buf
[z
]); printf("\n"); }
1071 {unsigned int z
; for (z
=0; z
<rec
->length
; z
++) printf("%02X ",buf
[z
]); printf("\n"); }
1074 if (!SSL_IS_DTLS(ssl
))
1076 for (i
=7; i
>=0; i
--)
1079 if (seq
[i
] != 0) break;
1084 {unsigned int z
; for (z
=0; z
<md_size
; z
++) printf("%02X ",md
[z
]); printf("\n"); }
1089 int tls1_generate_master_secret(SSL
*s
, unsigned char *out
, unsigned char *p
,
1092 unsigned char buff
[SSL_MAX_MASTER_KEY_LENGTH
];
1093 const void *co
= NULL
, *so
= NULL
;
1094 int col
= 0, sol
= 0;
1098 printf ("tls1_generate_master_secret(%p,%p, %p, %d)\n", s
,out
, p
,len
);
1099 #endif /* KSSL_DEBUG */
1101 #ifdef TLSEXT_TYPE_opaque_prf_input
1102 if (s
->s3
->client_opaque_prf_input
!= NULL
&& s
->s3
->server_opaque_prf_input
!= NULL
&&
1103 s
->s3
->client_opaque_prf_input_len
> 0 &&
1104 s
->s3
->client_opaque_prf_input_len
== s
->s3
->server_opaque_prf_input_len
)
1106 co
= s
->s3
->client_opaque_prf_input
;
1107 col
= s
->s3
->server_opaque_prf_input_len
;
1108 so
= s
->s3
->server_opaque_prf_input
;
1109 sol
= s
->s3
->client_opaque_prf_input_len
; /* must be same as col (see draft-rescorla-tls-opaque-prf-input-00.txt, section 3.1) */
1113 tls1_PRF(ssl_get_algorithm2(s
),
1114 TLS_MD_MASTER_SECRET_CONST
,TLS_MD_MASTER_SECRET_CONST_SIZE
,
1115 s
->s3
->client_random
,SSL3_RANDOM_SIZE
,
1117 s
->s3
->server_random
,SSL3_RANDOM_SIZE
,
1120 s
->session
->master_key
,buff
,sizeof buff
);
1122 fprintf(stderr
, "Premaster Secret:\n");
1123 BIO_dump_fp(stderr
, (char *)p
, len
);
1124 fprintf(stderr
, "Client Random:\n");
1125 BIO_dump_fp(stderr
, (char *)s
->s3
->client_random
, SSL3_RANDOM_SIZE
);
1126 fprintf(stderr
, "Server Random:\n");
1127 BIO_dump_fp(stderr
, (char *)s
->s3
->server_random
, SSL3_RANDOM_SIZE
);
1128 fprintf(stderr
, "Master Secret:\n");
1129 BIO_dump_fp(stderr
, (char *)s
->session
->master_key
, SSL3_MASTER_SECRET_SIZE
);
1132 #ifdef OPENSSL_SSL_TRACE_CRYPTO
1133 if (s
->msg_callback
)
1135 s
->msg_callback(2, s
->version
, TLS1_RT_CRYPTO_PREMASTER
,
1136 p
, len
, s
, s
->msg_callback_arg
);
1137 s
->msg_callback(2, s
->version
, TLS1_RT_CRYPTO_CLIENT_RANDOM
,
1138 s
->s3
->client_random
, SSL3_RANDOM_SIZE
,
1139 s
, s
->msg_callback_arg
);
1140 s
->msg_callback(2, s
->version
, TLS1_RT_CRYPTO_SERVER_RANDOM
,
1141 s
->s3
->server_random
, SSL3_RANDOM_SIZE
,
1142 s
, s
->msg_callback_arg
);
1143 s
->msg_callback(2, s
->version
, TLS1_RT_CRYPTO_MASTER
,
1144 s
->session
->master_key
,
1145 SSL3_MASTER_SECRET_SIZE
,
1146 s
, s
->msg_callback_arg
);
1151 printf ("tls1_generate_master_secret() complete\n");
1152 #endif /* KSSL_DEBUG */
1153 return(SSL3_MASTER_SECRET_SIZE
);
1156 int tls1_export_keying_material(SSL
*s
, unsigned char *out
, size_t olen
,
1157 const char *label
, size_t llen
, const unsigned char *context
,
1158 size_t contextlen
, int use_context
)
1160 unsigned char *buff
;
1161 unsigned char *val
= NULL
;
1162 size_t vallen
, currentvalpos
;
1166 printf ("tls1_export_keying_material(%p,%p,%d,%s,%d,%p,%d)\n", s
, out
, olen
, label
, llen
, p
, plen
);
1167 #endif /* KSSL_DEBUG */
1169 buff
= OPENSSL_malloc(olen
);
1170 if (buff
== NULL
) goto err2
;
1172 /* construct PRF arguments
1173 * we construct the PRF argument ourself rather than passing separate
1174 * values into the TLS PRF to ensure that the concatenation of values
1175 * does not create a prohibited label.
1177 vallen
= llen
+ SSL3_RANDOM_SIZE
* 2;
1180 vallen
+= 2 + contextlen
;
1183 val
= OPENSSL_malloc(vallen
);
1184 if (val
== NULL
) goto err2
;
1186 memcpy(val
+ currentvalpos
, (unsigned char *) label
, llen
);
1187 currentvalpos
+= llen
;
1188 memcpy(val
+ currentvalpos
, s
->s3
->client_random
, SSL3_RANDOM_SIZE
);
1189 currentvalpos
+= SSL3_RANDOM_SIZE
;
1190 memcpy(val
+ currentvalpos
, s
->s3
->server_random
, SSL3_RANDOM_SIZE
);
1191 currentvalpos
+= SSL3_RANDOM_SIZE
;
1195 val
[currentvalpos
] = (contextlen
>> 8) & 0xff;
1197 val
[currentvalpos
] = contextlen
& 0xff;
1199 if ((contextlen
> 0) || (context
!= NULL
))
1201 memcpy(val
+ currentvalpos
, context
, contextlen
);
1205 /* disallow prohibited labels
1206 * note that SSL3_RANDOM_SIZE > max(prohibited label len) =
1207 * 15, so size of val > max(prohibited label len) = 15 and the
1208 * comparisons won't have buffer overflow
1210 if (memcmp(val
, TLS_MD_CLIENT_FINISH_CONST
,
1211 TLS_MD_CLIENT_FINISH_CONST_SIZE
) == 0) goto err1
;
1212 if (memcmp(val
, TLS_MD_SERVER_FINISH_CONST
,
1213 TLS_MD_SERVER_FINISH_CONST_SIZE
) == 0) goto err1
;
1214 if (memcmp(val
, TLS_MD_MASTER_SECRET_CONST
,
1215 TLS_MD_MASTER_SECRET_CONST_SIZE
) == 0) goto err1
;
1216 if (memcmp(val
, TLS_MD_KEY_EXPANSION_CONST
,
1217 TLS_MD_KEY_EXPANSION_CONST_SIZE
) == 0) goto err1
;
1219 rv
= tls1_PRF(s
->s3
->tmp
.new_cipher
->algorithm2
,
1225 s
->session
->master_key
,s
->session
->master_key_length
,
1229 printf ("tls1_export_keying_material() complete\n");
1230 #endif /* KSSL_DEBUG */
1233 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL
, SSL_R_TLS_ILLEGAL_EXPORTER_LABEL
);
1237 SSLerr(SSL_F_TLS1_EXPORT_KEYING_MATERIAL
, ERR_R_MALLOC_FAILURE
);
1240 if (buff
!= NULL
) OPENSSL_free(buff
);
1241 if (val
!= NULL
) OPENSSL_free(val
);
1245 int tls1_alert_code(int code
)
1249 case SSL_AD_CLOSE_NOTIFY
: return(SSL3_AD_CLOSE_NOTIFY
);
1250 case SSL_AD_UNEXPECTED_MESSAGE
: return(SSL3_AD_UNEXPECTED_MESSAGE
);
1251 case SSL_AD_BAD_RECORD_MAC
: return(SSL3_AD_BAD_RECORD_MAC
);
1252 case SSL_AD_DECRYPTION_FAILED
: return(TLS1_AD_DECRYPTION_FAILED
);
1253 case SSL_AD_RECORD_OVERFLOW
: return(TLS1_AD_RECORD_OVERFLOW
);
1254 case SSL_AD_DECOMPRESSION_FAILURE
:return(SSL3_AD_DECOMPRESSION_FAILURE
);
1255 case SSL_AD_HANDSHAKE_FAILURE
: return(SSL3_AD_HANDSHAKE_FAILURE
);
1256 case SSL_AD_NO_CERTIFICATE
: return(-1);
1257 case SSL_AD_BAD_CERTIFICATE
: return(SSL3_AD_BAD_CERTIFICATE
);
1258 case SSL_AD_UNSUPPORTED_CERTIFICATE
:return(SSL3_AD_UNSUPPORTED_CERTIFICATE
);
1259 case SSL_AD_CERTIFICATE_REVOKED
:return(SSL3_AD_CERTIFICATE_REVOKED
);
1260 case SSL_AD_CERTIFICATE_EXPIRED
:return(SSL3_AD_CERTIFICATE_EXPIRED
);
1261 case SSL_AD_CERTIFICATE_UNKNOWN
:return(SSL3_AD_CERTIFICATE_UNKNOWN
);
1262 case SSL_AD_ILLEGAL_PARAMETER
: return(SSL3_AD_ILLEGAL_PARAMETER
);
1263 case SSL_AD_UNKNOWN_CA
: return(TLS1_AD_UNKNOWN_CA
);
1264 case SSL_AD_ACCESS_DENIED
: return(TLS1_AD_ACCESS_DENIED
);
1265 case SSL_AD_DECODE_ERROR
: return(TLS1_AD_DECODE_ERROR
);
1266 case SSL_AD_DECRYPT_ERROR
: return(TLS1_AD_DECRYPT_ERROR
);
1267 case SSL_AD_EXPORT_RESTRICTION
: return(TLS1_AD_EXPORT_RESTRICTION
);
1268 case SSL_AD_PROTOCOL_VERSION
: return(TLS1_AD_PROTOCOL_VERSION
);
1269 case SSL_AD_INSUFFICIENT_SECURITY
:return(TLS1_AD_INSUFFICIENT_SECURITY
);
1270 case SSL_AD_INTERNAL_ERROR
: return(TLS1_AD_INTERNAL_ERROR
);
1271 case SSL_AD_USER_CANCELLED
: return(TLS1_AD_USER_CANCELLED
);
1272 case SSL_AD_NO_RENEGOTIATION
: return(TLS1_AD_NO_RENEGOTIATION
);
1273 case SSL_AD_UNSUPPORTED_EXTENSION
: return(TLS1_AD_UNSUPPORTED_EXTENSION
);
1274 case SSL_AD_CERTIFICATE_UNOBTAINABLE
: return(TLS1_AD_CERTIFICATE_UNOBTAINABLE
);
1275 case SSL_AD_UNRECOGNIZED_NAME
: return(TLS1_AD_UNRECOGNIZED_NAME
);
1276 case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE
: return(TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE
);
1277 case SSL_AD_BAD_CERTIFICATE_HASH_VALUE
: return(TLS1_AD_BAD_CERTIFICATE_HASH_VALUE
);
1278 case SSL_AD_UNKNOWN_PSK_IDENTITY
:return(TLS1_AD_UNKNOWN_PSK_IDENTITY
);
1279 #if 0 /* not appropriate for TLS, not used for DTLS */
1280 case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
: return
1281 (DTLS1_AD_MISSING_HANDSHAKE_MESSAGE
);
1283 default: return(-1);