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.]
60 #include <openssl/comp.h>
61 #include <openssl/md5.h>
62 #include <openssl/sha.h>
63 #include <openssl/evp.h>
64 #include <openssl/hmac.h>
67 static void tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
68 int sec_len, unsigned char *seed, int seed_len,
69 unsigned char *out, int olen)
75 unsigned char A1[HMAC_MAX_MD_CBLOCK];
78 chunk=EVP_MD_size(md);
80 HMAC_Init(&ctx,sec,sec_len,md);
81 HMAC_Update(&ctx,seed,seed_len);
82 HMAC_Final(&ctx,A1,&A1_len);
87 HMAC_Init(&ctx,NULL,0,NULL); /* re-init */
88 HMAC_Update(&ctx,A1,A1_len);
89 memcpy(&ctx_tmp,&ctx,sizeof(ctx)); /* Copy for A2 */ /* not needed for last one */
90 HMAC_Update(&ctx,seed,seed_len);
94 HMAC_Final(&ctx,out,&j);
97 HMAC_Final(&ctx_tmp,A1,&A1_len); /* calc the next A1 value */
101 HMAC_Final(&ctx,A1,&A1_len);
107 HMAC_cleanup(&ctx_tmp);
108 memset(A1,0,sizeof(A1));
111 static void tls1_PRF(const EVP_MD *md5, const EVP_MD *sha1,
112 unsigned char *label, int label_len,
113 const unsigned char *sec, int slen, unsigned char *out1,
114 unsigned char *out2, int olen)
117 const unsigned char *S1,*S2;
122 len+=(slen&1); /* add for odd, make longer */
125 tls1_P_hash(md5 ,S1,len,label,label_len,out1,olen);
126 tls1_P_hash(sha1,S2,len,label,label_len,out2,olen);
128 for (i=0; i<olen; i++)
132 static void tls1_generate_key_block(SSL *s, unsigned char *km,
133 unsigned char *tmp, int num)
136 unsigned char buf[SSL3_RANDOM_SIZE*2+
137 TLS_MD_MAX_CONST_SIZE];
140 memcpy(p,TLS_MD_KEY_EXPANSION_CONST,
141 TLS_MD_KEY_EXPANSION_CONST_SIZE);
142 p+=TLS_MD_KEY_EXPANSION_CONST_SIZE;
143 memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
145 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
148 tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),
149 s->session->master_key,s->session->master_key_length,
152 printf("tls1_generate_key_block() ==> %d byte master_key =\n\t",
153 s->session->master_key_length);
156 for (i=0; i < s->session->master_key_length; i++)
158 printf("%02X", s->session->master_key[i]);
161 #endif /* KSSL_DEBUG */
164 int tls1_change_cipher_state(SSL *s, int which)
166 static const unsigned char empty[]="";
167 unsigned char *p,*key_block,*mac_secret;
168 unsigned char *exp_label,buf[TLS_MD_MAX_CONST_SIZE+
170 unsigned char tmp1[EVP_MAX_KEY_LENGTH];
171 unsigned char tmp2[EVP_MAX_KEY_LENGTH];
172 unsigned char iv1[EVP_MAX_IV_LENGTH*2];
173 unsigned char iv2[EVP_MAX_IV_LENGTH*2];
174 unsigned char *ms,*key,*iv,*er1,*er2;
178 const SSL_COMP *comp;
180 int _exp,n,i,j,k,exp_label_len,cl;
182 _exp=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
183 c=s->s3->tmp.new_sym_enc;
184 m=s->s3->tmp.new_hash;
185 comp=s->s3->tmp.new_compression;
186 key_block=s->s3->tmp.key_block;
189 printf("tls1_change_cipher_state(which= %d) w/\n", which);
190 printf("\talg= %ld, comp= %p\n", s->s3->tmp.new_cipher->algorithms,
192 printf("\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c);
193 printf("\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n",
194 c->nid,c->block_size,c->key_len,c->iv_len);
195 printf("\tkey_block: len= %d, data= ", s->s3->tmp.key_block_length);
198 for (i=0; i<s->s3->tmp.key_block_length; i++)
199 printf("%02x", key_block[i]); printf("\n");
201 #endif /* KSSL_DEBUG */
203 if (which & SSL3_CC_READ)
205 if ((s->enc_read_ctx == NULL) &&
206 ((s->enc_read_ctx=(EVP_CIPHER_CTX *)
207 OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
211 if (s->expand != NULL)
213 COMP_CTX_free(s->expand);
218 s->expand=COMP_CTX_new(comp->method);
219 if (s->expand == NULL)
221 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
224 if (s->s3->rrec.comp == NULL)
225 s->s3->rrec.comp=(unsigned char *)
226 OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH);
227 if (s->s3->rrec.comp == NULL)
230 memset(&(s->s3->read_sequence[0]),0,8);
231 mac_secret= &(s->s3->read_mac_secret[0]);
235 if ((s->enc_write_ctx == NULL) &&
236 ((s->enc_write_ctx=(EVP_CIPHER_CTX *)
237 OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
239 dd= s->enc_write_ctx;
241 if (s->compress != NULL)
243 COMP_CTX_free(s->compress);
248 s->compress=COMP_CTX_new(comp->method);
249 if (s->compress == NULL)
251 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
255 memset(&(s->s3->write_sequence[0]),0,8);
256 mac_secret= &(s->s3->write_mac_secret[0]);
259 EVP_CIPHER_CTX_init(dd);
261 p=s->s3->tmp.key_block;
263 cl=EVP_CIPHER_key_length(c);
264 j=_exp ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
265 cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
266 /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
267 k=EVP_CIPHER_iv_length(c);
268 er1= &(s->s3->client_random[0]);
269 er2= &(s->s3->server_random[0]);
270 if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
271 (which == SSL3_CHANGE_CIPHER_SERVER_READ))
274 key= &(p[ n]); n+=j+j;
275 iv= &(p[ n]); n+=k+k;
276 exp_label=(unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST;
277 exp_label_len=TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE;
283 ms= &(p[ n]); n+=i+j;
284 key= &(p[ n]); n+=j+k;
286 exp_label=(unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST;
287 exp_label_len=TLS_MD_SERVER_WRITE_KEY_CONST_SIZE;
291 if (n > s->s3->tmp.key_block_length)
293 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
297 memcpy(mac_secret,ms,i);
299 printf("which = %04X\nmac key=",which);
300 { int z; for (z=0; z<i; z++) printf("%02X%c",ms[z],((z+1)%16)?' ':'\n'); }
304 /* In here I set both the read and write key/iv to the
305 * same value since only the correct one will be used :-).
308 memcpy(p,exp_label,exp_label_len);
310 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
312 memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
314 tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),key,j,
315 tmp1,tmp2,EVP_CIPHER_key_length(c));
321 memcpy(p,TLS_MD_IV_BLOCK_CONST,
322 TLS_MD_IV_BLOCK_CONST_SIZE);
323 p+=TLS_MD_IV_BLOCK_CONST_SIZE;
324 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
326 memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
328 tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,p-buf,empty,0,
337 s->session->key_arg_length=0;
341 printf("EVP_CipherInit(dd,c,key=,iv=,which)\n");
342 printf("\tkey= "); for (i=0; i<c->key_len; i++) printf("%02x", key[i]);
344 printf("\t iv= "); for (i=0; i<c->iv_len; i++) printf("%02x", iv[i]);
347 #endif /* KSSL_DEBUG */
349 EVP_CipherInit(dd,c,key,iv,(which & SSL3_CC_WRITE));
351 printf("which = %04X\nkey=",which);
352 { int z; for (z=0; z<EVP_CIPHER_key_length(c); z++) printf("%02X%c",key[z],((z+1)%16)?' ':'\n'); }
354 { int z; for (z=0; z<k; z++) printf("%02X%c",iv[z],((z+1)%16)?' ':'\n'); }
358 memset(tmp1,0,sizeof(tmp1));
359 memset(tmp2,0,sizeof(tmp1));
360 memset(iv1,0,sizeof(iv1));
361 memset(iv2,0,sizeof(iv2));
364 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
369 int tls1_setup_key_block(SSL *s)
371 unsigned char *p1,*p2;
378 printf ("tls1_setup_key_block()\n");
379 #endif /* KSSL_DEBUG */
381 if (s->s3->tmp.key_block_length != 0)
384 if (!ssl_cipher_get_evp(s->session,&c,&hash,&comp))
386 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
390 s->s3->tmp.new_sym_enc=c;
391 s->s3->tmp.new_hash=hash;
393 num=EVP_CIPHER_key_length(c)+EVP_MD_size(hash)+EVP_CIPHER_iv_length(c);
396 ssl3_cleanup_key_block(s);
398 if ((p1=(unsigned char *)OPENSSL_malloc(num)) == NULL)
400 if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL)
403 s->s3->tmp.key_block_length=num;
404 s->s3->tmp.key_block=p1;
408 printf("client random\n");
409 { int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->client_random[z],((z+1)%16)?' ':'\n'); }
410 printf("server random\n");
411 { int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->server_random[z],((z+1)%16)?' ':'\n'); }
412 printf("pre-master\n");
413 { int z; for (z=0; z<s->session->master_key_length; z++) printf("%02X%c",s->session->master_key[z],((z+1)%16)?' ':'\n'); }
415 tls1_generate_key_block(s,p1,p2,num);
419 printf("\nkey block\n");
420 { int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); }
425 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
429 int tls1_enc(SSL *s, int send)
435 const EVP_CIPHER *enc;
439 if (s->write_hash != NULL)
440 n=EVP_MD_size(s->write_hash);
443 if (s->enc_write_ctx == NULL)
446 enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx);
450 if (s->read_hash != NULL)
451 n=EVP_MD_size(s->read_hash);
454 if (s->enc_read_ctx == NULL)
457 enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx);
461 printf("tls1_enc(%d)\n", send);
462 #endif /* KSSL_DEBUG */
464 if ((s->session == NULL) || (ds == NULL) ||
467 memcpy(rec->data,rec->input,rec->length);
468 rec->input=rec->data;
473 bs=EVP_CIPHER_block_size(ds->cipher);
475 if ((bs != 1) && send)
479 /* Add weird padding of upto 256 bytes */
481 /* we need to add 'i' padding bytes of value j */
483 if (s->options & SSL_OP_TLS_BLOCK_PADDING_BUG)
485 if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
488 for (k=(int)l; k<(int)(l+i); k++)
497 printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n",
498 ds,rec->data,rec->input,l);
499 printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n",
500 ds->buf_len, ds->cipher->key_len,
501 DES_KEY_SZ, DES_SCHEDULE_SZ,
504 for (i=0; i<ds->cipher->iv_len; i++) printf("%02X", ds->iv[i]);
506 printf("\trec->input=");
507 for (i=0; i<l; i++) printf(" %02x", rec->input[i]);
510 #endif /* KSSL_DEBUG */
512 EVP_Cipher(ds,rec->data,rec->input,l);
517 printf("\trec->data=");
519 printf(" %02x", rec->data[i]); printf("\n");
521 #endif /* KSSL_DEBUG */
523 if ((bs != 1) && !send)
527 if (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG)
529 /* First packet is even in size, so check */
530 if ((memcmp(s->s3->read_sequence,
531 "\0\0\0\0\0\0\0\0",8) == 0) && !(ii & 1))
532 s->s3->flags|=TLS1_FLAGS_TLS_PADDING_BUG;
533 if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
536 if (i > (int)rec->length)
538 SSLerr(SSL_F_TLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
539 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
542 for (j=(int)(l-i); j<(int)l; j++)
544 if (rec->data[j] != ii)
546 SSLerr(SSL_F_TLS1_ENC,SSL_R_DECRYPTION_FAILED);
547 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
557 int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in_ctx, unsigned char *out)
562 EVP_MD_CTX_copy(&ctx,in_ctx);
563 EVP_DigestFinal(&ctx,out,&ret);
567 int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
568 const char *str, int slen, unsigned char *out)
572 unsigned char buf[TLS_MD_MAX_CONST_SIZE+MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
573 unsigned char *q,buf2[12];
579 EVP_MD_CTX_copy(&ctx,in1_ctx);
580 EVP_DigestFinal(&ctx,q,&i);
582 EVP_MD_CTX_copy(&ctx,in2_ctx);
583 EVP_DigestFinal(&ctx,q,&i);
586 tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(q-buf),
587 s->session->master_key,s->session->master_key_length,
589 memset(&ctx,0,sizeof(EVP_MD_CTX));
594 int tls1_mac(SSL *ssl, unsigned char *md, int send)
597 unsigned char *mac_sec,*seq;
599 unsigned int md_size;
602 unsigned char buf[5];
606 rec= &(ssl->s3->wrec);
607 mac_sec= &(ssl->s3->write_mac_secret[0]);
608 seq= &(ssl->s3->write_sequence[0]);
609 hash=ssl->write_hash;
613 rec= &(ssl->s3->rrec);
614 mac_sec= &(ssl->s3->read_mac_secret[0]);
615 seq= &(ssl->s3->read_sequence[0]);
619 md_size=EVP_MD_size(hash);
622 buf[1]=TLS1_VERSION_MAJOR;
623 buf[2]=TLS1_VERSION_MINOR;
624 buf[3]=rec->length>>8;
625 buf[4]=rec->length&0xff;
627 /* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
628 HMAC_Init(&hmac,mac_sec,EVP_MD_size(hash),hash);
629 HMAC_Update(&hmac,seq,8);
630 HMAC_Update(&hmac,buf,5);
631 HMAC_Update(&hmac,rec->input,rec->length);
632 HMAC_Final(&hmac,md,&md_size);
636 {unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",mac_sec[z]); printf("\n"); }
638 {int z; for (z=0; z<8; z++) printf("%02X ",seq[z]); printf("\n"); }
640 {int z; for (z=0; z<5; z++) printf("%02X ",buf[z]); printf("\n"); }
642 {unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); }
648 if (seq[i] != 0) break;
652 {unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",md[z]); printf("\n"); }
657 int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
660 unsigned char buf[SSL3_RANDOM_SIZE*2+TLS_MD_MASTER_SECRET_CONST_SIZE];
661 unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH];
664 printf ("tls1_generate_master_secret(%p,%p, %p, %d)\n", s,out, p,len);
665 #endif /* KSSL_DEBUG */
667 /* Setup the stuff to munge */
668 memcpy(buf,TLS_MD_MASTER_SECRET_CONST,
669 TLS_MD_MASTER_SECRET_CONST_SIZE);
670 memcpy(&(buf[TLS_MD_MASTER_SECRET_CONST_SIZE]),
671 s->s3->client_random,SSL3_RANDOM_SIZE);
672 memcpy(&(buf[SSL3_RANDOM_SIZE+TLS_MD_MASTER_SECRET_CONST_SIZE]),
673 s->s3->server_random,SSL3_RANDOM_SIZE);
674 tls1_PRF(s->ctx->md5,s->ctx->sha1,
675 buf,TLS_MD_MASTER_SECRET_CONST_SIZE+SSL3_RANDOM_SIZE*2,p,len,
676 s->session->master_key,buff,SSL3_MASTER_SECRET_SIZE);
678 printf ("tls1_generate_master_secret() complete\n");
679 #endif /* KSSL_DEBUG */
680 return(SSL3_MASTER_SECRET_SIZE);
683 int tls1_alert_code(int code)
687 case SSL_AD_CLOSE_NOTIFY: return(SSL3_AD_CLOSE_NOTIFY);
688 case SSL_AD_UNEXPECTED_MESSAGE: return(SSL3_AD_UNEXPECTED_MESSAGE);
689 case SSL_AD_BAD_RECORD_MAC: return(SSL3_AD_BAD_RECORD_MAC);
690 case SSL_AD_DECRYPTION_FAILED: return(TLS1_AD_DECRYPTION_FAILED);
691 case SSL_AD_RECORD_OVERFLOW: return(TLS1_AD_RECORD_OVERFLOW);
692 case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE);
693 case SSL_AD_HANDSHAKE_FAILURE: return(SSL3_AD_HANDSHAKE_FAILURE);
694 case SSL_AD_NO_CERTIFICATE: return(-1);
695 case SSL_AD_BAD_CERTIFICATE: return(SSL3_AD_BAD_CERTIFICATE);
696 case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE);
697 case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED);
698 case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED);
699 case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN);
700 case SSL_AD_ILLEGAL_PARAMETER: return(SSL3_AD_ILLEGAL_PARAMETER);
701 case SSL_AD_UNKNOWN_CA: return(TLS1_AD_UNKNOWN_CA);
702 case SSL_AD_ACCESS_DENIED: return(TLS1_AD_ACCESS_DENIED);
703 case SSL_AD_DECODE_ERROR: return(TLS1_AD_DECODE_ERROR);
704 case SSL_AD_DECRYPT_ERROR: return(TLS1_AD_DECRYPT_ERROR);
705 case SSL_AD_EXPORT_RESTRICTION: return(TLS1_AD_EXPORT_RESTRICTION);
706 case SSL_AD_PROTOCOL_VERSION: return(TLS1_AD_PROTOCOL_VERSION);
707 case SSL_AD_INSUFFICIENT_SECURITY:return(TLS1_AD_INSUFFICIENT_SECURITY);
708 case SSL_AD_INTERNAL_ERROR: return(TLS1_AD_INTERNAL_ERROR);
709 case SSL_AD_USER_CANCELLED: return(TLS1_AD_USER_CANCELLED);
710 case SSL_AD_NO_RENEGOTIATION: return(TLS1_AD_NO_RENEGOTIATION);