2
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
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* This package is an SSL implementation written
6
* by Eric Young (eay@cryptsoft.com).
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* The implementation was written so as to conform with Netscapes SSL.
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* This library is free for commercial and non-commercial use as long as
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* the following conditions are aheared to. The following conditions
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* apply to all code found in this distribution, be it the RC4, RSA,
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* lhash, DES, etc., code; not just the SSL code. The SSL documentation
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* included with this distribution is covered by the same copyright terms
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* except that the holder is Tim Hudson (tjh@cryptsoft.com).
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed.
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* If this package is used in a product, Eric Young should be given attribution
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* as the author of the parts of the library used.
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* This can be in the form of a textual message at program startup or
21
* in documentation (online or textual) provided with the package.
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* Redistribution and use in source and binary forms, with or without
24
* modification, are permitted provided that the following conditions
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* 1. Redistributions of source code must retain the copyright
27
* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* "This product includes cryptographic software written by
34
* Eric Young (eay@cryptsoft.com)"
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* The word 'cryptographic' can be left out if the rouines from the library
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* being used are not cryptographic related :-).
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* 4. If you include any Windows specific code (or a derivative thereof) from
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* the apps directory (application code) you must include an acknowledgement:
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* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* 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
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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/* ====================================================================
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* Copyright (c) 1998-2002 The OpenSSL Project. All rights reserved.
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* Redistribution and use in source and binary forms, with or without
62
* modification, are permitted provided that the following conditions
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* 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
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* openssl-core@openssl.org.
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* 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/)"
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
94
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
108
* Hudson (tjh@cryptsoft.com).
113
#include "ssl_locl.h"
114
#include <openssl/comp.h>
115
#include <openssl/evp.h>
116
#include <openssl/hmac.h>
117
#include <openssl/md5.h>
119
static void tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
120
int sec_len, unsigned char *seed, int seed_len,
121
unsigned char *out, int olen)
127
unsigned char A1[EVP_MAX_MD_SIZE];
130
chunk=EVP_MD_size(md);
133
HMAC_CTX_init(&ctx_tmp);
134
HMAC_Init_ex(&ctx,sec,sec_len,md, NULL);
135
HMAC_Init_ex(&ctx_tmp,sec,sec_len,md, NULL);
136
HMAC_Update(&ctx,seed,seed_len);
137
HMAC_Final(&ctx,A1,&A1_len);
142
HMAC_Init_ex(&ctx,NULL,0,NULL,NULL); /* re-init */
143
HMAC_Init_ex(&ctx_tmp,NULL,0,NULL,NULL); /* re-init */
144
HMAC_Update(&ctx,A1,A1_len);
145
HMAC_Update(&ctx_tmp,A1,A1_len);
146
HMAC_Update(&ctx,seed,seed_len);
150
HMAC_Final(&ctx,out,&j);
153
HMAC_Final(&ctx_tmp,A1,&A1_len); /* calc the next A1 value */
157
HMAC_Final(&ctx,A1,&A1_len);
162
HMAC_CTX_cleanup(&ctx);
163
HMAC_CTX_cleanup(&ctx_tmp);
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OPENSSL_cleanse(A1,sizeof(A1));
167
static void tls1_PRF(const EVP_MD *md5, const EVP_MD *sha1,
168
unsigned char *label, int label_len,
169
const unsigned char *sec, int slen, unsigned char *out1,
170
unsigned char *out2, int olen)
173
const unsigned char *S1,*S2;
178
len+=(slen&1); /* add for odd, make longer */
181
tls1_P_hash(md5 ,S1,len,label,label_len,out1,olen);
182
tls1_P_hash(sha1,S2,len,label,label_len,out2,olen);
184
for (i=0; i<olen; i++)
188
static void tls1_generate_key_block(SSL *s, unsigned char *km,
189
unsigned char *tmp, int num)
192
unsigned char buf[SSL3_RANDOM_SIZE*2+
193
TLS_MD_MAX_CONST_SIZE];
196
memcpy(p,TLS_MD_KEY_EXPANSION_CONST,
197
TLS_MD_KEY_EXPANSION_CONST_SIZE);
198
p+=TLS_MD_KEY_EXPANSION_CONST_SIZE;
199
memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
201
memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
204
tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),
205
s->session->master_key,s->session->master_key_length,
208
printf("tls1_generate_key_block() ==> %d byte master_key =\n\t",
209
s->session->master_key_length);
212
for (i=0; i < s->session->master_key_length; i++)
214
printf("%02X", s->session->master_key[i]);
217
#endif /* KSSL_DEBUG */
220
int tls1_change_cipher_state(SSL *s, int which)
222
static const unsigned char empty[]="";
223
unsigned char *p,*key_block,*mac_secret;
224
unsigned char *exp_label,buf[TLS_MD_MAX_CONST_SIZE+
226
unsigned char tmp1[EVP_MAX_KEY_LENGTH];
227
unsigned char tmp2[EVP_MAX_KEY_LENGTH];
228
unsigned char iv1[EVP_MAX_IV_LENGTH*2];
229
unsigned char iv2[EVP_MAX_IV_LENGTH*2];
230
unsigned char *ms,*key,*iv,*er1,*er2;
234
const SSL_COMP *comp;
236
int is_export,n,i,j,k,exp_label_len,cl;
239
is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
240
c=s->s3->tmp.new_sym_enc;
241
m=s->s3->tmp.new_hash;
242
comp=s->s3->tmp.new_compression;
243
key_block=s->s3->tmp.key_block;
246
printf("tls1_change_cipher_state(which= %d) w/\n", which);
247
printf("\talg= %ld, comp= %p\n", s->s3->tmp.new_cipher->algorithms,
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printf("\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c);
250
printf("\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n",
251
c->nid,c->block_size,c->key_len,c->iv_len);
252
printf("\tkey_block: len= %d, data= ", s->s3->tmp.key_block_length);
255
for (i=0; i<s->s3->tmp.key_block_length; i++)
256
printf("%02x", key_block[i]); printf("\n");
258
#endif /* KSSL_DEBUG */
260
if (which & SSL3_CC_READ)
262
if (s->enc_read_ctx != NULL)
264
else if ((s->enc_read_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
268
if (s->expand != NULL)
270
COMP_CTX_free(s->expand);
275
s->expand=COMP_CTX_new(comp->method);
276
if (s->expand == NULL)
278
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
281
if (s->s3->rrec.comp == NULL)
282
s->s3->rrec.comp=(unsigned char *)
283
OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH);
284
if (s->s3->rrec.comp == NULL)
287
memset(&(s->s3->read_sequence[0]),0,8);
288
mac_secret= &(s->s3->read_mac_secret[0]);
292
if (s->enc_write_ctx != NULL)
294
else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
296
if ((s->enc_write_ctx == NULL) &&
297
((s->enc_write_ctx=(EVP_CIPHER_CTX *)
298
OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
300
dd= s->enc_write_ctx;
302
if (s->compress != NULL)
304
COMP_CTX_free(s->compress);
309
s->compress=COMP_CTX_new(comp->method);
310
if (s->compress == NULL)
312
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
316
memset(&(s->s3->write_sequence[0]),0,8);
317
mac_secret= &(s->s3->write_mac_secret[0]);
321
EVP_CIPHER_CTX_cleanup(dd);
322
EVP_CIPHER_CTX_init(dd);
324
p=s->s3->tmp.key_block;
326
cl=EVP_CIPHER_key_length(c);
327
j=is_export ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
328
cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
329
/* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
330
k=EVP_CIPHER_iv_length(c);
331
er1= &(s->s3->client_random[0]);
332
er2= &(s->s3->server_random[0]);
333
if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
334
(which == SSL3_CHANGE_CIPHER_SERVER_READ))
337
key= &(p[ n]); n+=j+j;
338
iv= &(p[ n]); n+=k+k;
339
exp_label=(unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST;
340
exp_label_len=TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE;
346
ms= &(p[ n]); n+=i+j;
347
key= &(p[ n]); n+=j+k;
349
exp_label=(unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST;
350
exp_label_len=TLS_MD_SERVER_WRITE_KEY_CONST_SIZE;
354
if (n > s->s3->tmp.key_block_length)
356
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
360
memcpy(mac_secret,ms,i);
362
printf("which = %04X\nmac key=",which);
363
{ int z; for (z=0; z<i; z++) printf("%02X%c",ms[z],((z+1)%16)?' ':'\n'); }
367
/* In here I set both the read and write key/iv to the
368
* same value since only the correct one will be used :-).
371
memcpy(p,exp_label,exp_label_len);
373
memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
375
memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
377
tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),key,j,
378
tmp1,tmp2,EVP_CIPHER_key_length(c));
384
memcpy(p,TLS_MD_IV_BLOCK_CONST,
385
TLS_MD_IV_BLOCK_CONST_SIZE);
386
p+=TLS_MD_IV_BLOCK_CONST_SIZE;
387
memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
389
memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
391
tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,p-buf,empty,0,
400
s->session->key_arg_length=0;
404
printf("EVP_CipherInit_ex(dd,c,key=,iv=,which)\n");
405
printf("\tkey= "); for (i=0; i<c->key_len; i++) printf("%02x", key[i]);
407
printf("\t iv= "); for (i=0; i<c->iv_len; i++) printf("%02x", iv[i]);
410
#endif /* KSSL_DEBUG */
412
EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));
414
printf("which = %04X\nkey=",which);
415
{ int z; for (z=0; z<EVP_CIPHER_key_length(c); z++) printf("%02X%c",key[z],((z+1)%16)?' ':'\n'); }
417
{ int z; for (z=0; z<k; z++) printf("%02X%c",iv[z],((z+1)%16)?' ':'\n'); }
421
OPENSSL_cleanse(tmp1,sizeof(tmp1));
422
OPENSSL_cleanse(tmp2,sizeof(tmp1));
423
OPENSSL_cleanse(iv1,sizeof(iv1));
424
OPENSSL_cleanse(iv2,sizeof(iv2));
427
SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
432
int tls1_setup_key_block(SSL *s)
434
unsigned char *p1,*p2;
441
printf ("tls1_setup_key_block()\n");
442
#endif /* KSSL_DEBUG */
444
if (s->s3->tmp.key_block_length != 0)
447
if (!ssl_cipher_get_evp(s->session,&c,&hash,&comp))
449
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
453
s->s3->tmp.new_sym_enc=c;
454
s->s3->tmp.new_hash=hash;
456
num=EVP_CIPHER_key_length(c)+EVP_MD_size(hash)+EVP_CIPHER_iv_length(c);
459
ssl3_cleanup_key_block(s);
461
if ((p1=(unsigned char *)OPENSSL_malloc(num)) == NULL)
463
if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL)
466
s->s3->tmp.key_block_length=num;
467
s->s3->tmp.key_block=p1;
471
printf("client random\n");
472
{ int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->client_random[z],((z+1)%16)?' ':'\n'); }
473
printf("server random\n");
474
{ int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->server_random[z],((z+1)%16)?' ':'\n'); }
475
printf("pre-master\n");
476
{ int z; for (z=0; z<s->session->master_key_length; z++) printf("%02X%c",s->session->master_key[z],((z+1)%16)?' ':'\n'); }
478
tls1_generate_key_block(s,p1,p2,num);
479
OPENSSL_cleanse(p2,num);
482
printf("\nkey block\n");
483
{ int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); }
486
if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
488
/* enable vulnerability countermeasure for CBC ciphers with
489
* known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt)
491
s->s3->need_empty_fragments = 1;
493
if (s->session->cipher != NULL)
495
if ((s->session->cipher->algorithms & SSL_ENC_MASK) == SSL_eNULL)
496
s->s3->need_empty_fragments = 0;
498
#ifndef OPENSSL_NO_RC4
499
if ((s->session->cipher->algorithms & SSL_ENC_MASK) == SSL_RC4)
500
s->s3->need_empty_fragments = 0;
507
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
511
int tls1_enc(SSL *s, int send)
517
const EVP_CIPHER *enc;
521
if (s->write_hash != NULL)
522
n=EVP_MD_size(s->write_hash);
525
if (s->enc_write_ctx == NULL)
528
enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx);
532
if (s->read_hash != NULL)
533
n=EVP_MD_size(s->read_hash);
536
if (s->enc_read_ctx == NULL)
539
enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx);
543
printf("tls1_enc(%d)\n", send);
544
#endif /* KSSL_DEBUG */
546
if ((s->session == NULL) || (ds == NULL) ||
549
memmove(rec->data,rec->input,rec->length);
550
rec->input=rec->data;
555
bs=EVP_CIPHER_block_size(ds->cipher);
557
if ((bs != 1) && send)
561
/* Add weird padding of upto 256 bytes */
563
/* we need to add 'i' padding bytes of value j */
565
if (s->options & SSL_OP_TLS_BLOCK_PADDING_BUG)
567
if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
570
for (k=(int)l; k<(int)(l+i); k++)
579
printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n",
580
ds,rec->data,rec->input,l);
581
printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n",
582
ds->buf_len, ds->cipher->key_len,
583
DES_KEY_SZ, DES_SCHEDULE_SZ,
586
for (i=0; i<ds->cipher->iv_len; i++) printf("%02X", ds->iv[i]);
588
printf("\trec->input=");
589
for (ui=0; ui<l; ui++) printf(" %02x", rec->input[ui]);
592
#endif /* KSSL_DEBUG */
596
if (l == 0 || l%bs != 0)
598
SSLerr(SSL_F_TLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
599
ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
604
EVP_Cipher(ds,rec->data,rec->input,l);
609
printf("\trec->data=");
611
printf(" %02x", rec->data[i]); printf("\n");
613
#endif /* KSSL_DEBUG */
615
if ((bs != 1) && !send)
617
ii=i=rec->data[l-1]; /* padding_length */
619
if (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG)
621
/* First packet is even in size, so check */
622
if ((memcmp(s->s3->read_sequence,
623
"\0\0\0\0\0\0\0\0",8) == 0) && !(ii & 1))
624
s->s3->flags|=TLS1_FLAGS_TLS_PADDING_BUG;
625
if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
628
/* TLS 1.0 does not bound the number of padding bytes by the block size.
629
* All of them must have value 'padding_length'. */
630
if (i > (int)rec->length)
632
/* Incorrect padding. SSLerr() and ssl3_alert are done
633
* by caller: we don't want to reveal whether this is
634
* a decryption error or a MAC verification failure
635
* (see http://www.openssl.org/~bodo/tls-cbc.txt) */
638
for (j=(int)(l-i); j<(int)l; j++)
640
if (rec->data[j] != ii)
642
/* Incorrect padding */
652
int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in_ctx, unsigned char *out)
657
EVP_MD_CTX_init(&ctx);
658
EVP_MD_CTX_copy_ex(&ctx,in_ctx);
659
EVP_DigestFinal_ex(&ctx,out,&ret);
660
EVP_MD_CTX_cleanup(&ctx);
664
int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
665
const char *str, int slen, unsigned char *out)
669
unsigned char buf[TLS_MD_MAX_CONST_SIZE+MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
670
unsigned char *q,buf2[12];
676
EVP_MD_CTX_init(&ctx);
677
EVP_MD_CTX_copy_ex(&ctx,in1_ctx);
678
EVP_DigestFinal_ex(&ctx,q,&i);
680
EVP_MD_CTX_copy_ex(&ctx,in2_ctx);
681
EVP_DigestFinal_ex(&ctx,q,&i);
684
tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(q-buf),
685
s->session->master_key,s->session->master_key_length,
686
out,buf2,sizeof buf2);
687
EVP_MD_CTX_cleanup(&ctx);
692
int tls1_mac(SSL *ssl, unsigned char *md, int send)
695
unsigned char *mac_sec,*seq;
697
unsigned int md_size;
700
unsigned char buf[5];
704
rec= &(ssl->s3->wrec);
705
mac_sec= &(ssl->s3->write_mac_secret[0]);
706
seq= &(ssl->s3->write_sequence[0]);
707
hash=ssl->write_hash;
711
rec= &(ssl->s3->rrec);
712
mac_sec= &(ssl->s3->read_mac_secret[0]);
713
seq= &(ssl->s3->read_sequence[0]);
717
md_size=EVP_MD_size(hash);
720
buf[1]=TLS1_VERSION_MAJOR;
721
buf[2]=TLS1_VERSION_MINOR;
722
buf[3]=rec->length>>8;
723
buf[4]=rec->length&0xff;
725
/* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
726
HMAC_CTX_init(&hmac);
727
HMAC_Init_ex(&hmac,mac_sec,EVP_MD_size(hash),hash,NULL);
728
HMAC_Update(&hmac,seq,8);
729
HMAC_Update(&hmac,buf,5);
730
HMAC_Update(&hmac,rec->input,rec->length);
731
HMAC_Final(&hmac,md,&md_size);
732
HMAC_CTX_cleanup(&hmac);
736
{unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",mac_sec[z]); printf("\n"); }
738
{int z; for (z=0; z<8; z++) printf("%02X ",seq[z]); printf("\n"); }
740
{int z; for (z=0; z<5; z++) printf("%02X ",buf[z]); printf("\n"); }
742
{unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); }
748
if (seq[i] != 0) break;
752
{unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",md[z]); printf("\n"); }
757
int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
760
unsigned char buf[SSL3_RANDOM_SIZE*2+TLS_MD_MASTER_SECRET_CONST_SIZE];
761
unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH];
764
printf ("tls1_generate_master_secret(%p,%p, %p, %d)\n", s,out, p,len);
765
#endif /* KSSL_DEBUG */
767
/* Setup the stuff to munge */
768
memcpy(buf,TLS_MD_MASTER_SECRET_CONST,
769
TLS_MD_MASTER_SECRET_CONST_SIZE);
770
memcpy(&(buf[TLS_MD_MASTER_SECRET_CONST_SIZE]),
771
s->s3->client_random,SSL3_RANDOM_SIZE);
772
memcpy(&(buf[SSL3_RANDOM_SIZE+TLS_MD_MASTER_SECRET_CONST_SIZE]),
773
s->s3->server_random,SSL3_RANDOM_SIZE);
774
tls1_PRF(s->ctx->md5,s->ctx->sha1,
775
buf,TLS_MD_MASTER_SECRET_CONST_SIZE+SSL3_RANDOM_SIZE*2,p,len,
776
s->session->master_key,buff,sizeof buff);
778
printf ("tls1_generate_master_secret() complete\n");
779
#endif /* KSSL_DEBUG */
780
return(SSL3_MASTER_SECRET_SIZE);
783
int tls1_alert_code(int code)
787
case SSL_AD_CLOSE_NOTIFY: return(SSL3_AD_CLOSE_NOTIFY);
788
case SSL_AD_UNEXPECTED_MESSAGE: return(SSL3_AD_UNEXPECTED_MESSAGE);
789
case SSL_AD_BAD_RECORD_MAC: return(SSL3_AD_BAD_RECORD_MAC);
790
case SSL_AD_DECRYPTION_FAILED: return(TLS1_AD_DECRYPTION_FAILED);
791
case SSL_AD_RECORD_OVERFLOW: return(TLS1_AD_RECORD_OVERFLOW);
792
case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE);
793
case SSL_AD_HANDSHAKE_FAILURE: return(SSL3_AD_HANDSHAKE_FAILURE);
794
case SSL_AD_NO_CERTIFICATE: return(-1);
795
case SSL_AD_BAD_CERTIFICATE: return(SSL3_AD_BAD_CERTIFICATE);
796
case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE);
797
case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED);
798
case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED);
799
case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN);
800
case SSL_AD_ILLEGAL_PARAMETER: return(SSL3_AD_ILLEGAL_PARAMETER);
801
case SSL_AD_UNKNOWN_CA: return(TLS1_AD_UNKNOWN_CA);
802
case SSL_AD_ACCESS_DENIED: return(TLS1_AD_ACCESS_DENIED);
803
case SSL_AD_DECODE_ERROR: return(TLS1_AD_DECODE_ERROR);
804
case SSL_AD_DECRYPT_ERROR: return(TLS1_AD_DECRYPT_ERROR);
805
case SSL_AD_EXPORT_RESTRICTION: return(TLS1_AD_EXPORT_RESTRICTION);
806
case SSL_AD_PROTOCOL_VERSION: return(TLS1_AD_PROTOCOL_VERSION);
807
case SSL_AD_INSUFFICIENT_SECURITY:return(TLS1_AD_INSUFFICIENT_SECURITY);
808
case SSL_AD_INTERNAL_ERROR: return(TLS1_AD_INTERNAL_ERROR);
809
case SSL_AD_USER_CANCELLED: return(TLS1_AD_USER_CANCELLED);
810
case SSL_AD_NO_RENEGOTIATION: return(TLS1_AD_NO_RENEGOTIATION);
added
removed
ssl/t1_enc.c
