2 /* Copyright (C) 1995-1997 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.]
63 char *ssl3_version_str="SSLv3 part of SSLeay 0.8.1b 29-Jun-1998";
65 #define SSL3_NUM_CIPHERS (sizeof(ssl3_ciphers)/sizeof(SSL_CIPHER))
68 static long ssl3_default_timeout(void );
70 static long ssl3_default_timeout();
73 SSL_CIPHER ssl3_ciphers[]={
78 SSL3_TXT_RSA_NULL_MD5,
80 SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3,
87 SSL3_TXT_RSA_NULL_SHA,
89 SSL_kRSA|SSL_aRSA|SSL_eNULL |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
98 SSL3_TXT_ADH_RC4_40_MD5,
99 SSL3_CK_ADH_RC4_40_MD5,
100 SSL_kEDH |SSL_aNULL|SSL_RC4 |SSL_MD5 |SSL_EXP|SSL_SSLV3,
107 SSL3_TXT_ADH_RC4_128_MD5,
108 SSL3_CK_ADH_RC4_128_MD5,
109 SSL_kEDH |SSL_aNULL|SSL_RC4 |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3,
116 SSL3_TXT_ADH_DES_40_CBC_SHA,
117 SSL3_CK_ADH_DES_40_CBC_SHA,
118 SSL_kEDH |SSL_aNULL|SSL_DES|SSL_SHA1|SSL_EXP|SSL_SSLV3,
125 SSL3_TXT_ADH_DES_64_CBC_SHA,
126 SSL3_CK_ADH_DES_64_CBC_SHA,
127 SSL_kEDH |SSL_aNULL|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
134 SSL3_TXT_ADH_DES_196_CBC_SHA,
135 SSL3_CK_ADH_DES_196_CBC_SHA,
136 SSL_kEDH |SSL_aNULL|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
145 SSL3_TXT_RSA_RC4_40_MD5,
146 SSL3_CK_RSA_RC4_40_MD5,
147 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_MD5 |SSL_EXP|SSL_SSLV3,
154 SSL3_TXT_RSA_RC4_128_MD5,
155 SSL3_CK_RSA_RC4_128_MD5,
156 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_MD5|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
163 SSL3_TXT_RSA_RC4_128_SHA,
164 SSL3_CK_RSA_RC4_128_SHA,
165 SSL_kRSA|SSL_aRSA|SSL_RC4 |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
172 SSL3_TXT_RSA_RC2_40_MD5,
173 SSL3_CK_RSA_RC2_40_MD5,
174 SSL_kRSA|SSL_aRSA|SSL_RC2 |SSL_MD5 |SSL_EXP|SSL_SSLV3,
181 SSL3_TXT_RSA_IDEA_128_SHA,
182 SSL3_CK_RSA_IDEA_128_SHA,
183 SSL_kRSA|SSL_aRSA|SSL_IDEA |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_MEDIUM,
190 SSL3_TXT_RSA_DES_40_CBC_SHA,
191 SSL3_CK_RSA_DES_40_CBC_SHA,
192 SSL_kRSA|SSL_aRSA|SSL_DES|SSL_SHA1|SSL_EXP|SSL_SSLV3,
199 SSL3_TXT_RSA_DES_64_CBC_SHA,
200 SSL3_CK_RSA_DES_64_CBC_SHA,
201 SSL_kRSA|SSL_aRSA|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
208 SSL3_TXT_RSA_DES_192_CBC3_SHA,
209 SSL3_CK_RSA_DES_192_CBC3_SHA,
210 SSL_kRSA|SSL_aRSA|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
219 SSL3_TXT_DH_DSS_DES_40_CBC_SHA,
220 SSL3_CK_DH_DSS_DES_40_CBC_SHA,
221 SSL_kDHd |SSL_aDH|SSL_DES|SSL_SHA1|SSL_EXP|SSL_SSLV3,
228 SSL3_TXT_DH_DSS_DES_64_CBC_SHA,
229 SSL3_CK_DH_DSS_DES_64_CBC_SHA,
230 SSL_kDHd |SSL_aDH|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
237 SSL3_TXT_DH_DSS_DES_192_CBC3_SHA,
238 SSL3_CK_DH_DSS_DES_192_CBC3_SHA,
239 SSL_kDHd |SSL_aDH|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
246 SSL3_TXT_DH_RSA_DES_40_CBC_SHA,
247 SSL3_CK_DH_RSA_DES_40_CBC_SHA,
248 SSL_kDHr |SSL_aDH|SSL_DES|SSL_SHA1|SSL_EXP|SSL_SSLV3,
255 SSL3_TXT_DH_RSA_DES_64_CBC_SHA,
256 SSL3_CK_DH_RSA_DES_64_CBC_SHA,
257 SSL_kDHr |SSL_aDH|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
264 SSL3_TXT_DH_RSA_DES_192_CBC3_SHA,
265 SSL3_CK_DH_RSA_DES_192_CBC3_SHA,
266 SSL_kDHr |SSL_aDH|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
271 /* The Ephemeral DH ciphers */
275 SSL3_TXT_EDH_DSS_DES_40_CBC_SHA,
276 SSL3_CK_EDH_DSS_DES_40_CBC_SHA,
277 SSL_kEDH|SSL_aDSS|SSL_DES|SSL_SHA1|SSL_EXP|SSL_SSLV3,
284 SSL3_TXT_EDH_DSS_DES_64_CBC_SHA,
285 SSL3_CK_EDH_DSS_DES_64_CBC_SHA,
286 SSL_kEDH|SSL_aDSS|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
293 SSL3_TXT_EDH_DSS_DES_192_CBC3_SHA,
294 SSL3_CK_EDH_DSS_DES_192_CBC3_SHA,
295 SSL_kEDH|SSL_aDSS|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
302 SSL3_TXT_EDH_RSA_DES_40_CBC_SHA,
303 SSL3_CK_EDH_RSA_DES_40_CBC_SHA,
304 SSL_kEDH|SSL_aRSA|SSL_DES|SSL_SHA1|SSL_EXP|SSL_SSLV3,
311 SSL3_TXT_EDH_RSA_DES_64_CBC_SHA,
312 SSL3_CK_EDH_RSA_DES_64_CBC_SHA,
313 SSL_kEDH|SSL_aRSA|SSL_DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_LOW,
320 SSL3_TXT_EDH_RSA_DES_192_CBC3_SHA,
321 SSL3_CK_EDH_RSA_DES_192_CBC3_SHA,
322 SSL_kEDH|SSL_aRSA|SSL_3DES |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3|SSL_HIGH,
331 SSL3_TXT_FZA_DMS_NULL_SHA,
332 SSL3_CK_FZA_DMS_NULL_SHA,
333 SSL_kFZA|SSL_aFZA |SSL_eNULL |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
341 SSL3_TXT_FZA_DMS_FZA_SHA,
342 SSL3_CK_FZA_DMS_FZA_SHA,
343 SSL_kFZA|SSL_aFZA |SSL_eFZA |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
351 SSL3_TXT_FZA_DMS_RC4_SHA,
352 SSL3_CK_FZA_DMS_RC4_SHA,
353 SSL_kFZA|SSL_aFZA |SSL_RC4 |SSL_SHA1|SSL_NOT_EXP|SSL_SSLV3,
361 static SSL_METHOD SSLv3_data= {
366 ssl_undefined_function,
367 ssl_undefined_function,
375 ssl3_get_cipher_by_char,
376 ssl3_put_cipher_by_char,
381 ssl3_default_timeout,
384 static long ssl3_default_timeout()
386 /* 2 hours, the 24 hours mentioned in the SSLv3 spec
387 * is way too long for http, the cache would over fill */
391 SSL_METHOD *sslv3_base_method()
396 int ssl3_num_ciphers()
398 return(SSL3_NUM_CIPHERS);
401 SSL_CIPHER *ssl3_get_cipher(u)
404 if (u < SSL3_NUM_CIPHERS)
405 return(&(ssl3_ciphers[SSL3_NUM_CIPHERS-1-u]));
410 /* The problem is that it may not be the correct record type */
414 return(s->s3->rrec.length);
422 if ((s3=(SSL3_CTX *)Malloc(sizeof(SSL3_CTX))) == NULL) goto err;
425 s->s3->tmp.ca_names=NULL;
426 s->s3->tmp.key_block=NULL;
427 s->s3->rbuf.buf=NULL;
428 s->s3->wbuf.buf=NULL;
439 ssl3_cleanup_key_block(s);
440 if (s->s3->rbuf.buf != NULL)
441 Free(s->s3->rbuf.buf);
442 if (s->s3->wbuf.buf != NULL)
443 Free(s->s3->wbuf.buf);
445 if (s->s3->tmp.dh != NULL)
446 DH_free(s->s3->tmp.dh);
448 if (s->s3->tmp.ca_names != NULL)
449 sk_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
450 memset(s->s3,0,sizeof(SSL3_CTX));
458 unsigned char *rp,*wp;
460 ssl3_cleanup_key_block(s);
461 if (s->s3->tmp.ca_names != NULL)
462 sk_pop_free(s->s3->tmp.ca_names,X509_NAME_free);
467 memset(s->s3,0,sizeof(SSL3_CTX));
470 s->packet= &(s->s3->rbuf.buf[0]);
480 long ssl3_ctrl(s,cmd,larg,parg)
489 long ssl3_ctx_ctrl(ctx,cmd,larg,parg)
497 cert=ctx->default_cert;
502 case SSL_CTRL_NEED_TMP_RSA:
503 if ( (cert->rsa_tmp == NULL) &&
504 ((cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL) ||
505 (EVP_PKEY_size(cert->pkeys[SSL_PKEY_RSA_ENC].privatekey) > (512/8)))
511 case SSL_CTRL_SET_TMP_RSA:
522 if ((rsa=RSAPrivateKey_dup(rsa)) == NULL)
527 SSLerr(SSL_F_SSL3_CTX_CTRL,ERR_R_RSA_LIB);
532 if (cert->rsa_tmp != NULL)
533 RSA_free(cert->rsa_tmp);
539 case SSL_CTRL_SET_TMP_RSA_CB:
540 cert->rsa_tmp_cb=(RSA *(*)())parg;
544 case SSL_CTRL_SET_TMP_DH:
549 if ( ((new=DHparams_dup(dh)) == NULL) ||
550 (!DH_generate_key(new)))
552 SSLerr(SSL_F_SSL3_CTX_CTRL,ERR_R_DH_LIB);
553 if (new != NULL) DH_free(new);
558 if (cert->dh_tmp != NULL)
559 DH_free(cert->dh_tmp);
565 case SSL_CTRL_SET_TMP_DH_CB:
566 cert->dh_tmp_cb=(DH *(*)())parg;
575 /* This function needs to check if the ciphers required are actually
577 SSL_CIPHER *ssl3_get_cipher_by_char(p)
581 static SSL_CIPHER *sorted[SSL3_NUM_CIPHERS];
582 SSL_CIPHER c,*cp= &c,**cpp;
590 for (i=0; i<SSL3_NUM_CIPHERS; i++)
591 sorted[i]= &(ssl3_ciphers[i]);
593 qsort( (char *)sorted,
594 SSL3_NUM_CIPHERS,sizeof(SSL_CIPHER *),
595 FP_ICC ssl_cipher_ptr_id_cmp);
598 id=0x03000000L|((unsigned long)p[0]<<8L)|(unsigned long)p[1];
600 cpp=(SSL_CIPHER **)OBJ_bsearch((char *)&cp,
602 SSL3_NUM_CIPHERS,sizeof(SSL_CIPHER *),
603 (int (*)())ssl_cipher_ptr_id_cmp);
604 if ((cpp == NULL) || !(*cpp)->valid)
610 int ssl3_put_cipher_by_char(c,p)
619 if ((l & 0xff000000) != 0x03000000) return(0);
620 p[0]=((unsigned char)(l>> 8L))&0xFF;
621 p[1]=((unsigned char)(l ))&0xFF;
626 void ssl3_generate_key_block(s,km,num)
633 unsigned char buf[8],smd[SHA_DIGEST_LENGTH];
638 for (i=0; i<num; i+=MD5_DIGEST_LENGTH)
645 SHA1_Update(&s1,buf,k);
646 SHA1_Update(&s1,s->session->master_key,
647 s->session->master_key_length);
648 SHA1_Update(&s1,s->s3->server_random,SSL3_RANDOM_SIZE);
649 SHA1_Update(&s1,s->s3->client_random,SSL3_RANDOM_SIZE);
650 SHA1_Final( smd,&s1);
653 MD5_Update(&m5,s->session->master_key,
654 s->session->master_key_length);
655 MD5_Update(&m5,smd,SHA_DIGEST_LENGTH);
656 if ((i+MD5_DIGEST_LENGTH) > num)
659 memcpy(km,smd,(num-i));
664 km+=MD5_DIGEST_LENGTH;
666 memset(smd,0,SHA_DIGEST_LENGTH);
669 int ssl3_part_read(s,i)
673 s->rwstate=SSL_READING;
686 SSL_CIPHER *ssl3_choose_cipher(s,have,pref)
690 SSL_CIPHER *c,*ret=NULL;
693 unsigned long alg,mask,emask;
695 /* Lets see which ciphers we can supported */
699 cert=s->ctx->default_cert;
701 ssl_set_cert_masks(cert);
703 emask=cert->export_mask;
705 sk_set_cmp_func(pref,ssl_cipher_ptr_id_cmp);
707 for (i=0; i<sk_num(have); i++)
709 c=(SSL_CIPHER *)sk_value(have,i);
710 alg=c->algorithms&(SSL_MKEY_MASK|SSL_AUTH_MASK);
711 if (alg & SSL_EXPORT)
713 ok=((alg & emask) == alg)?1:0;
715 printf("%d:[%08lX:%08lX]%s\n",ok,alg,mask,c->name);
720 ok=((alg & mask) == alg)?1:0;
722 printf("%d:[%08lX:%08lX]%s\n",ok,alg,mask,c->name);
728 j=sk_find(pref,(char *)c);
731 ret=(SSL_CIPHER *)sk_value(pref,j);
738 int ssl3_get_req_cert_type(s,p)
745 alg=s->s3->tmp.new_cipher->algorithms;
748 if (alg & (SSL_kDHr|SSL_kEDH))
751 p[ret++]=SSL3_CT_RSA_FIXED_DH;
754 p[ret++]=SSL3_CT_DSS_FIXED_DH;
757 if (alg & (SSL_kEDH|SSL_kDHd|SSL_kDHr))
760 p[ret++]=SSL3_CT_RSA_EPHEMERAL_DH;
763 p[ret++]=SSL3_CT_DSS_EPHEMERAL_DH;
768 p[ret++]=SSL3_CT_RSA_SIGN;
770 /* p[ret++]=SSL3_CT_DSS_SIGN; */
778 /* Don't do anything much if we have not done the handshake or
779 * we don't want to send messages :-) */
780 if ((s->quiet_shutdown) || (s->state == SSL_ST_BEFORE))
782 s->shutdown=(SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN);
786 if (!(s->shutdown & SSL_SENT_SHUTDOWN))
788 s->shutdown|=SSL_SENT_SHUTDOWN;
790 ssl3_send_alert(s,SSL3_AL_WARNING,SSL3_AD_CLOSE_NOTIFY);
792 /* our shutdown alert has been sent now, and if it still needs
793 * to be written, s->s3->alert_dispatch will be true */
795 else if (s->s3->alert_dispatch)
797 /* resend it if not sent */
799 ssl3_dispatch_alert(s);
802 else if (!(s->shutdown & SSL_RECEIVED_SHUTDOWN))
804 /* If we are waiting for a close from our peer, we are closed */
805 ssl3_read_bytes(s,0,NULL,0);
808 if ((s->shutdown == (SSL_SENT_SHUTDOWN|SSL_RECEIVED_SHUTDOWN)) &&
809 !s->s3->alert_dispatch)
815 int ssl3_write(s,buf,len)
824 if (s->shutdown & SSL_SEND_SHUTDOWN)
826 s->rwstate=SSL_NOTHING;
832 /* This is an experimental flag that sends the
833 * last handshake message in the same packet as the first
834 * use data - used to see if it helps the TCP protocol during
835 * session-id reuse */
836 /* The second test is because the buffer may have been removed */
837 if ((s->s3->flags & SSL3_FLAGS_POP_BUFFER) && (s->wbio == s->bbio))
839 /* First time through, we write into the buffer */
840 if (s->s3->delay_buf_pop_ret == 0)
842 ret=ssl3_write_bytes(s,SSL3_RT_APPLICATION_DATA,
844 if (ret <= 0) return(ret);
846 s->s3->delay_buf_pop_ret=ret;
849 s->rwstate=SSL_WRITING;
850 n=BIO_flush(s->wbio);
851 if (n <= 0) return(n);
852 s->rwstate=SSL_NOTHING;
854 /* We have flushed the buffer */
855 under=BIO_pop(s->wbio);
859 ret=s->s3->delay_buf_pop_ret;
860 s->s3->delay_buf_pop_ret=0;
862 s->s3->flags&= ~SSL3_FLAGS_POP_BUFFER;
866 ret=ssl3_write_bytes(s,SSL3_RT_APPLICATION_DATA,
868 if (ret <= 0) return(ret);
873 int ssl3_read(s,buf,len)
879 return(ssl3_read_bytes(s,SSL3_RT_APPLICATION_DATA,buf,len));
882 int ssl3_peek(s,buf,len)
891 if ((rr->length == 0) || (rr->type != SSL3_RT_APPLICATION_DATA))
894 if ((unsigned int)len > rr->length)
898 memcpy(buf,&(rr->data[rr->off]),(unsigned int)n);
902 int ssl3_renegotiate(s)
905 if (s->handshake_func == NULL)
908 if (s->s3->flags & SSL3_FLAGS_NO_RENEGOTIATE_CIPHERS)
912 s->state=SSL_ST_RENEGOTIATE;