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/evp.h>
62 #include <openssl/hmac.h>
64 #include <openssl/md5.h>
66 static void tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
67 int sec_len, unsigned char *seed, int seed_len,
68 unsigned char *out, int olen)
74 unsigned char A1[HMAC_MAX_MD_CBLOCK];
77 chunk=EVP_MD_size(md);
80 HMAC_CTX_init(&ctx_tmp);
81 HMAC_Init_ex(&ctx,sec,sec_len,md, NULL);
82 HMAC_Init_ex(&ctx_tmp,sec,sec_len,md, NULL);
83 HMAC_Update(&ctx,seed,seed_len);
84 HMAC_Final(&ctx,A1,&A1_len);
89 HMAC_Init_ex(&ctx,NULL,0,NULL,NULL); /* re-init */
90 HMAC_Init_ex(&ctx_tmp,NULL,0,NULL,NULL); /* re-init */
91 HMAC_Update(&ctx,A1,A1_len);
92 HMAC_Update(&ctx_tmp,A1,A1_len);
93 HMAC_Update(&ctx,seed,seed_len);
97 HMAC_Final(&ctx,out,&j);
100 HMAC_Final(&ctx_tmp,A1,&A1_len); /* calc the next A1 value */
104 HMAC_Final(&ctx,A1,&A1_len);
109 HMAC_CTX_cleanup(&ctx);
110 HMAC_CTX_cleanup(&ctx_tmp);
111 memset(A1,0,sizeof(A1));
114 static void tls1_PRF(const EVP_MD *md5, const EVP_MD *sha1,
115 unsigned char *label, int label_len,
116 const unsigned char *sec, int slen, unsigned char *out1,
117 unsigned char *out2, int olen)
120 const unsigned char *S1,*S2;
125 len+=(slen&1); /* add for odd, make longer */
128 tls1_P_hash(md5 ,S1,len,label,label_len,out1,olen);
129 tls1_P_hash(sha1,S2,len,label,label_len,out2,olen);
131 for (i=0; i<olen; i++)
135 static void tls1_generate_key_block(SSL *s, unsigned char *km,
136 unsigned char *tmp, int num)
139 unsigned char buf[SSL3_RANDOM_SIZE*2+
140 TLS_MD_MAX_CONST_SIZE];
143 memcpy(p,TLS_MD_KEY_EXPANSION_CONST,
144 TLS_MD_KEY_EXPANSION_CONST_SIZE);
145 p+=TLS_MD_KEY_EXPANSION_CONST_SIZE;
146 memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
148 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
151 tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),
152 s->session->master_key,s->session->master_key_length,
155 printf("tls1_generate_key_block() ==> %d byte master_key =\n\t",
156 s->session->master_key_length);
159 for (i=0; i < s->session->master_key_length; i++)
161 printf("%02X", s->session->master_key[i]);
164 #endif /* KSSL_DEBUG */
167 int tls1_change_cipher_state(SSL *s, int which)
169 static const unsigned char empty[]="";
170 unsigned char *p,*key_block,*mac_secret;
171 unsigned char *exp_label,buf[TLS_MD_MAX_CONST_SIZE+
173 unsigned char tmp1[EVP_MAX_KEY_LENGTH];
174 unsigned char tmp2[EVP_MAX_KEY_LENGTH];
175 unsigned char iv1[EVP_MAX_IV_LENGTH*2];
176 unsigned char iv2[EVP_MAX_IV_LENGTH*2];
177 unsigned char *ms,*key,*iv,*er1,*er2;
181 const SSL_COMP *comp;
183 int is_export,n,i,j,k,exp_label_len,cl;
186 is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
187 c=s->s3->tmp.new_sym_enc;
188 m=s->s3->tmp.new_hash;
189 comp=s->s3->tmp.new_compression;
190 key_block=s->s3->tmp.key_block;
193 printf("tls1_change_cipher_state(which= %d) w/\n", which);
194 printf("\talg= %ld, comp= %p\n", s->s3->tmp.new_cipher->algorithms,
196 printf("\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c);
197 printf("\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n",
198 c->nid,c->block_size,c->key_len,c->iv_len);
199 printf("\tkey_block: len= %d, data= ", s->s3->tmp.key_block_length);
202 for (i=0; i<s->s3->tmp.key_block_length; i++)
203 printf("%02x", key_block[i]); printf("\n");
205 #endif /* KSSL_DEBUG */
207 if (which & SSL3_CC_READ)
209 if (s->enc_read_ctx != NULL)
211 else if ((s->enc_read_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
215 if (s->expand != NULL)
217 COMP_CTX_free(s->expand);
222 s->expand=COMP_CTX_new(comp->method);
223 if (s->expand == NULL)
225 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
228 if (s->s3->rrec.comp == NULL)
229 s->s3->rrec.comp=(unsigned char *)
230 OPENSSL_malloc(SSL3_RT_MAX_ENCRYPTED_LENGTH);
231 if (s->s3->rrec.comp == NULL)
234 memset(&(s->s3->read_sequence[0]),0,8);
235 mac_secret= &(s->s3->read_mac_secret[0]);
239 if (s->enc_write_ctx != NULL)
241 else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
243 if ((s->enc_write_ctx == NULL) &&
244 ((s->enc_write_ctx=(EVP_CIPHER_CTX *)
245 OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
247 dd= s->enc_write_ctx;
249 if (s->compress != NULL)
251 COMP_CTX_free(s->compress);
256 s->compress=COMP_CTX_new(comp->method);
257 if (s->compress == NULL)
259 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
263 memset(&(s->s3->write_sequence[0]),0,8);
264 mac_secret= &(s->s3->write_mac_secret[0]);
268 EVP_CIPHER_CTX_cleanup(dd);
269 EVP_CIPHER_CTX_init(dd);
271 p=s->s3->tmp.key_block;
273 cl=EVP_CIPHER_key_length(c);
274 j=is_export ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
275 cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
276 /* Was j=(exp)?5:EVP_CIPHER_key_length(c); */
277 k=EVP_CIPHER_iv_length(c);
278 er1= &(s->s3->client_random[0]);
279 er2= &(s->s3->server_random[0]);
280 if ( (which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
281 (which == SSL3_CHANGE_CIPHER_SERVER_READ))
284 key= &(p[ n]); n+=j+j;
285 iv= &(p[ n]); n+=k+k;
286 exp_label=(unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST;
287 exp_label_len=TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE;
293 ms= &(p[ n]); n+=i+j;
294 key= &(p[ n]); n+=j+k;
296 exp_label=(unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST;
297 exp_label_len=TLS_MD_SERVER_WRITE_KEY_CONST_SIZE;
301 if (n > s->s3->tmp.key_block_length)
303 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
307 memcpy(mac_secret,ms,i);
309 printf("which = %04X\nmac key=",which);
310 { int z; for (z=0; z<i; z++) printf("%02X%c",ms[z],((z+1)%16)?' ':'\n'); }
314 /* In here I set both the read and write key/iv to the
315 * same value since only the correct one will be used :-).
318 memcpy(p,exp_label,exp_label_len);
320 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
322 memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
324 tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(p-buf),key,j,
325 tmp1,tmp2,EVP_CIPHER_key_length(c));
331 memcpy(p,TLS_MD_IV_BLOCK_CONST,
332 TLS_MD_IV_BLOCK_CONST_SIZE);
333 p+=TLS_MD_IV_BLOCK_CONST_SIZE;
334 memcpy(p,s->s3->client_random,SSL3_RANDOM_SIZE);
336 memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
338 tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,p-buf,empty,0,
347 s->session->key_arg_length=0;
351 printf("EVP_CipherInit_ex(dd,c,key=,iv=,which)\n");
352 printf("\tkey= "); for (i=0; i<c->key_len; i++) printf("%02x", key[i]);
354 printf("\t iv= "); for (i=0; i<c->iv_len; i++) printf("%02x", iv[i]);
357 #endif /* KSSL_DEBUG */
359 EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));
361 printf("which = %04X\nkey=",which);
362 { int z; for (z=0; z<EVP_CIPHER_key_length(c); z++) printf("%02X%c",key[z],((z+1)%16)?' ':'\n'); }
364 { int z; for (z=0; z<k; z++) printf("%02X%c",iv[z],((z+1)%16)?' ':'\n'); }
368 memset(tmp1,0,sizeof(tmp1));
369 memset(tmp2,0,sizeof(tmp1));
370 memset(iv1,0,sizeof(iv1));
371 memset(iv2,0,sizeof(iv2));
374 SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
379 int tls1_setup_key_block(SSL *s)
381 unsigned char *p1,*p2;
388 printf ("tls1_setup_key_block()\n");
389 #endif /* KSSL_DEBUG */
391 if (s->s3->tmp.key_block_length != 0)
394 if (!ssl_cipher_get_evp(s->session,&c,&hash,&comp))
396 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
400 s->s3->tmp.new_sym_enc=c;
401 s->s3->tmp.new_hash=hash;
403 num=EVP_CIPHER_key_length(c)+EVP_MD_size(hash)+EVP_CIPHER_iv_length(c);
406 ssl3_cleanup_key_block(s);
408 if ((p1=(unsigned char *)OPENSSL_malloc(num)) == NULL)
410 if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL)
413 s->s3->tmp.key_block_length=num;
414 s->s3->tmp.key_block=p1;
418 printf("client random\n");
419 { int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->client_random[z],((z+1)%16)?' ':'\n'); }
420 printf("server random\n");
421 { int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->server_random[z],((z+1)%16)?' ':'\n'); }
422 printf("pre-master\n");
423 { int z; for (z=0; z<s->session->master_key_length; z++) printf("%02X%c",s->session->master_key[z],((z+1)%16)?' ':'\n'); }
425 tls1_generate_key_block(s,p1,p2,num);
429 printf("\nkey block\n");
430 { int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); }
435 SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
439 int tls1_enc(SSL *s, int send)
445 const EVP_CIPHER *enc;
449 if (s->write_hash != NULL)
450 n=EVP_MD_size(s->write_hash);
453 if (s->enc_write_ctx == NULL)
456 enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx);
460 if (s->read_hash != NULL)
461 n=EVP_MD_size(s->read_hash);
464 if (s->enc_read_ctx == NULL)
467 enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx);
471 printf("tls1_enc(%d)\n", send);
472 #endif /* KSSL_DEBUG */
474 if ((s->session == NULL) || (ds == NULL) ||
477 memmove(rec->data,rec->input,rec->length);
478 rec->input=rec->data;
483 bs=EVP_CIPHER_block_size(ds->cipher);
485 if ((bs != 1) && send)
489 /* Add weird padding of upto 256 bytes */
491 /* we need to add 'i' padding bytes of value j */
493 if (s->options & SSL_OP_TLS_BLOCK_PADDING_BUG)
495 if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
498 for (k=(int)l; k<(int)(l+i); k++)
507 printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n",
508 ds,rec->data,rec->input,l);
509 printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n",
510 ds->buf_len, ds->cipher->key_len,
511 DES_KEY_SZ, DES_SCHEDULE_SZ,
514 for (i=0; i<ds->cipher->iv_len; i++) printf("%02X", ds->iv[i]);
516 printf("\trec->input=");
517 for (ui=0; ui<l; ui++) printf(" %02x", rec->input[ui]);
520 #endif /* KSSL_DEBUG */
524 if (l == 0 || l%bs != 0)
526 SSLerr(SSL_F_TLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
527 ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
532 EVP_Cipher(ds,rec->data,rec->input,l);
537 printf("\trec->data=");
539 printf(" %02x", rec->data[i]); printf("\n");
541 #endif /* KSSL_DEBUG */
543 if ((bs != 1) && !send)
545 ii=i=rec->data[l-1]; /* padding_length */
547 if (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG)
549 /* First packet is even in size, so check */
550 if ((memcmp(s->s3->read_sequence,
551 "\0\0\0\0\0\0\0\0",8) == 0) && !(ii & 1))
552 s->s3->flags|=TLS1_FLAGS_TLS_PADDING_BUG;
553 if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
556 /* TLS 1.0 does not bound the number of padding bytes by the block size.
557 * All of them must have value 'padding_length'. */
558 if (i > (int)rec->length)
560 /* Incorrect padding. SSLerr() and ssl3_alert are done
561 * by caller: we don't want to reveal whether this is
562 * a decryption error or a MAC verification failure
563 * (see http://www.openssl.org/~bodo/tls-cbc.txt) */
566 for (j=(int)(l-i); j<(int)l; j++)
568 if (rec->data[j] != ii)
570 /* Incorrect padding */
580 int tls1_cert_verify_mac(SSL *s, EVP_MD_CTX *in_ctx, unsigned char *out)
585 EVP_MD_CTX_init(&ctx);
586 EVP_MD_CTX_copy_ex(&ctx,in_ctx);
587 EVP_DigestFinal_ex(&ctx,out,&ret);
588 EVP_MD_CTX_cleanup(&ctx);
592 int tls1_final_finish_mac(SSL *s, EVP_MD_CTX *in1_ctx, EVP_MD_CTX *in2_ctx,
593 const char *str, int slen, unsigned char *out)
597 unsigned char buf[TLS_MD_MAX_CONST_SIZE+MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
598 unsigned char *q,buf2[12];
604 EVP_MD_CTX_init(&ctx);
605 EVP_MD_CTX_copy_ex(&ctx,in1_ctx);
606 EVP_DigestFinal_ex(&ctx,q,&i);
608 EVP_MD_CTX_copy_ex(&ctx,in2_ctx);
609 EVP_DigestFinal_ex(&ctx,q,&i);
612 tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(q-buf),
613 s->session->master_key,s->session->master_key_length,
615 EVP_MD_CTX_cleanup(&ctx);
620 int tls1_mac(SSL *ssl, unsigned char *md, int send)
623 unsigned char *mac_sec,*seq;
625 unsigned int md_size;
628 unsigned char buf[5];
632 rec= &(ssl->s3->wrec);
633 mac_sec= &(ssl->s3->write_mac_secret[0]);
634 seq= &(ssl->s3->write_sequence[0]);
635 hash=ssl->write_hash;
639 rec= &(ssl->s3->rrec);
640 mac_sec= &(ssl->s3->read_mac_secret[0]);
641 seq= &(ssl->s3->read_sequence[0]);
645 md_size=EVP_MD_size(hash);
648 buf[1]=TLS1_VERSION_MAJOR;
649 buf[2]=TLS1_VERSION_MINOR;
650 buf[3]=rec->length>>8;
651 buf[4]=rec->length&0xff;
653 /* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
654 HMAC_CTX_init(&hmac);
655 HMAC_Init_ex(&hmac,mac_sec,EVP_MD_size(hash),hash,NULL);
656 HMAC_Update(&hmac,seq,8);
657 HMAC_Update(&hmac,buf,5);
658 HMAC_Update(&hmac,rec->input,rec->length);
659 HMAC_Final(&hmac,md,&md_size);
660 HMAC_CTX_cleanup(&hmac);
664 {unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",mac_sec[z]); printf("\n"); }
666 {int z; for (z=0; z<8; z++) printf("%02X ",seq[z]); printf("\n"); }
668 {int z; for (z=0; z<5; z++) printf("%02X ",buf[z]); printf("\n"); }
670 {unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); }
676 if (seq[i] != 0) break;
680 {unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",md[z]); printf("\n"); }
685 int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
688 unsigned char buf[SSL3_RANDOM_SIZE*2+TLS_MD_MASTER_SECRET_CONST_SIZE];
689 unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH];
692 printf ("tls1_generate_master_secret(%p,%p, %p, %d)\n", s,out, p,len);
693 #endif /* KSSL_DEBUG */
695 /* Setup the stuff to munge */
696 memcpy(buf,TLS_MD_MASTER_SECRET_CONST,
697 TLS_MD_MASTER_SECRET_CONST_SIZE);
698 memcpy(&(buf[TLS_MD_MASTER_SECRET_CONST_SIZE]),
699 s->s3->client_random,SSL3_RANDOM_SIZE);
700 memcpy(&(buf[SSL3_RANDOM_SIZE+TLS_MD_MASTER_SECRET_CONST_SIZE]),
701 s->s3->server_random,SSL3_RANDOM_SIZE);
702 tls1_PRF(s->ctx->md5,s->ctx->sha1,
703 buf,TLS_MD_MASTER_SECRET_CONST_SIZE+SSL3_RANDOM_SIZE*2,p,len,
704 s->session->master_key,buff,SSL3_MASTER_SECRET_SIZE);
706 printf ("tls1_generate_master_secret() complete\n");
707 #endif /* KSSL_DEBUG */
708 return(SSL3_MASTER_SECRET_SIZE);
711 int tls1_alert_code(int code)
715 case SSL_AD_CLOSE_NOTIFY: return(SSL3_AD_CLOSE_NOTIFY);
716 case SSL_AD_UNEXPECTED_MESSAGE: return(SSL3_AD_UNEXPECTED_MESSAGE);
717 case SSL_AD_BAD_RECORD_MAC: return(SSL3_AD_BAD_RECORD_MAC);
718 case SSL_AD_DECRYPTION_FAILED: return(TLS1_AD_DECRYPTION_FAILED);
719 case SSL_AD_RECORD_OVERFLOW: return(TLS1_AD_RECORD_OVERFLOW);
720 case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE);
721 case SSL_AD_HANDSHAKE_FAILURE: return(SSL3_AD_HANDSHAKE_FAILURE);
722 case SSL_AD_NO_CERTIFICATE: return(-1);
723 case SSL_AD_BAD_CERTIFICATE: return(SSL3_AD_BAD_CERTIFICATE);
724 case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE);
725 case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED);
726 case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED);
727 case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN);
728 case SSL_AD_ILLEGAL_PARAMETER: return(SSL3_AD_ILLEGAL_PARAMETER);
729 case SSL_AD_UNKNOWN_CA: return(TLS1_AD_UNKNOWN_CA);
730 case SSL_AD_ACCESS_DENIED: return(TLS1_AD_ACCESS_DENIED);
731 case SSL_AD_DECODE_ERROR: return(TLS1_AD_DECODE_ERROR);
732 case SSL_AD_DECRYPT_ERROR: return(TLS1_AD_DECRYPT_ERROR);
733 case SSL_AD_EXPORT_RESTRICTION: return(TLS1_AD_EXPORT_RESTRICTION);
734 case SSL_AD_PROTOCOL_VERSION: return(TLS1_AD_PROTOCOL_VERSION);
735 case SSL_AD_INSUFFICIENT_SECURITY:return(TLS1_AD_INSUFFICIENT_SECURITY);
736 case SSL_AD_INTERNAL_ERROR: return(TLS1_AD_INTERNAL_ERROR);
737 case SSL_AD_USER_CANCELLED: return(TLS1_AD_USER_CANCELLED);
738 case SSL_AD_NO_RENEGOTIATION: return(TLS1_AD_NO_RENEGOTIATION);