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) 1998-2002 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 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
114 * Portions of the attached software ("Contribution") are developed by
115 * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
117 * The Contribution is licensed pursuant to the OpenSSL open source
118 * license provided above.
120 * In addition, Sun covenants to all licensees who provide a reciprocal
121 * covenant with respect to their own patents if any, not to sue under
122 * current and future patent claims necessarily infringed by the making,
123 * using, practicing, selling, offering for sale and/or otherwise
124 * disposing of the Contribution as delivered hereunder
125 * (or portions thereof), provided that such covenant shall not apply:
126 * 1) for code that a licensee deletes from the Contribution;
127 * 2) separates from the Contribution; or
128 * 3) for infringements caused by:
129 * i) the modification of the Contribution or
130 * ii) the combination of the Contribution with other software or
131 * devices where such combination causes the infringement.
133 * ECC cipher suite support in OpenSSL originally written by
134 * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
138 #define REUSE_CIPHER_BUG
139 #define NETSCAPE_HANG_BUG
142 #include "ssl_locl.h"
143 #include "kssl_lcl.h"
144 #include <openssl/buffer.h>
145 #include <openssl/rand.h>
146 #include <openssl/objects.h>
147 #include <openssl/evp.h>
148 #include <openssl/x509.h>
149 #include <openssl/krb5_asn.h>
150 #include <openssl/md5.h>
151 #include "cryptlib.h"
153 static SSL_METHOD *ssl3_get_server_method(int ver);
154 static int ssl3_get_client_hello(SSL *s);
155 static int ssl3_check_client_hello(SSL *s);
156 static int ssl3_send_server_hello(SSL *s);
157 static int ssl3_send_server_key_exchange(SSL *s);
158 static int ssl3_send_certificate_request(SSL *s);
159 static int ssl3_send_server_done(SSL *s);
160 static int ssl3_get_client_key_exchange(SSL *s);
161 static int ssl3_get_client_certificate(SSL *s);
162 static int ssl3_get_cert_verify(SSL *s);
163 static int ssl3_send_hello_request(SSL *s);
165 #ifndef OPENSSL_NO_ECDH
166 static int nid2curve_id(int nid);
169 static SSL_METHOD *ssl3_get_server_method(int ver)
171 if (ver == SSL3_VERSION)
172 return(SSLv3_server_method());
177 SSL_METHOD *SSLv3_server_method(void)
180 static SSL_METHOD SSLv3_server_data;
184 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
188 memcpy((char *)&SSLv3_server_data,(char *)sslv3_base_method(),
190 SSLv3_server_data.ssl_accept=ssl3_accept;
191 SSLv3_server_data.get_ssl_method=ssl3_get_server_method;
195 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
197 return(&SSLv3_server_data);
200 int ssl3_accept(SSL *s)
203 unsigned long l,Time=time(NULL);
204 void (*cb)(const SSL *ssl,int type,int val)=NULL;
207 int new_state,state,skip=0;
209 RAND_add(&Time,sizeof(Time),0);
213 if (s->info_callback != NULL)
215 else if (s->ctx->info_callback != NULL)
216 cb=s->ctx->info_callback;
218 /* init things to blank */
220 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
224 SSLerr(SSL_F_SSL3_ACCEPT,SSL_R_NO_CERTIFICATE_SET);
234 case SSL_ST_RENEGOTIATE:
236 /* s->state=SSL_ST_ACCEPT; */
240 case SSL_ST_BEFORE|SSL_ST_ACCEPT:
241 case SSL_ST_OK|SSL_ST_ACCEPT:
244 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
246 if ((s->version>>8) != 3)
248 SSLerr(SSL_F_SSL3_ACCEPT, ERR_R_INTERNAL_ERROR);
251 s->type=SSL_ST_ACCEPT;
253 if (s->init_buf == NULL)
255 if ((buf=BUF_MEM_new()) == NULL)
260 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
268 if (!ssl3_setup_buffers(s))
276 if (s->state != SSL_ST_RENEGOTIATE)
278 /* Ok, we now need to push on a buffering BIO so that
279 * the output is sent in a way that TCP likes :-)
281 if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; }
283 ssl3_init_finished_mac(s);
284 s->state=SSL3_ST_SR_CLNT_HELLO_A;
285 s->ctx->stats.sess_accept++;
289 /* s->state == SSL_ST_RENEGOTIATE,
290 * we will just send a HelloRequest */
291 s->ctx->stats.sess_accept_renegotiate++;
292 s->state=SSL3_ST_SW_HELLO_REQ_A;
296 case SSL3_ST_SW_HELLO_REQ_A:
297 case SSL3_ST_SW_HELLO_REQ_B:
300 ret=ssl3_send_hello_request(s);
301 if (ret <= 0) goto end;
302 s->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C;
303 s->state=SSL3_ST_SW_FLUSH;
306 ssl3_init_finished_mac(s);
309 case SSL3_ST_SW_HELLO_REQ_C:
313 case SSL3_ST_SR_CLNT_HELLO_A:
314 case SSL3_ST_SR_CLNT_HELLO_B:
315 case SSL3_ST_SR_CLNT_HELLO_C:
318 ret=ssl3_get_client_hello(s);
319 if (ret <= 0) goto end;
321 s->state=SSL3_ST_SW_SRVR_HELLO_A;
325 case SSL3_ST_SW_SRVR_HELLO_A:
326 case SSL3_ST_SW_SRVR_HELLO_B:
327 ret=ssl3_send_server_hello(s);
328 if (ret <= 0) goto end;
331 s->state=SSL3_ST_SW_CHANGE_A;
333 s->state=SSL3_ST_SW_CERT_A;
337 case SSL3_ST_SW_CERT_A:
338 case SSL3_ST_SW_CERT_B:
339 /* Check if it is anon DH or anon ECDH */
340 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
342 ret=ssl3_send_server_certificate(s);
343 if (ret <= 0) goto end;
347 s->state=SSL3_ST_SW_KEY_EXCH_A;
351 case SSL3_ST_SW_KEY_EXCH_A:
352 case SSL3_ST_SW_KEY_EXCH_B:
353 l=s->s3->tmp.new_cipher->algorithms;
355 /* clear this, it may get reset by
356 * send_server_key_exchange */
357 if ((s->options & SSL_OP_EPHEMERAL_RSA)
358 #ifndef OPENSSL_NO_KRB5
360 #endif /* OPENSSL_NO_KRB5 */
362 /* option SSL_OP_EPHEMERAL_RSA sends temporary RSA key
363 * even when forbidden by protocol specs
364 * (handshake may fail as clients are not required to
365 * be able to handle this) */
366 s->s3->tmp.use_rsa_tmp=1;
368 s->s3->tmp.use_rsa_tmp=0;
371 /* only send if a DH key exchange, fortezza or
372 * RSA but we have a sign only certificate
374 * For ECC ciphersuites, we send a serverKeyExchange
375 * message only if the cipher suite is either
376 * ECDH-anon or ECDHE. In other cases, the
377 * server certificate contains the server's
378 * public key for key exchange.
380 if (s->s3->tmp.use_rsa_tmp
382 || (l & (SSL_DH|SSL_kFZA))
384 && (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL
385 || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)
386 && EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)
392 ret=ssl3_send_server_key_exchange(s);
393 if (ret <= 0) goto end;
398 s->state=SSL3_ST_SW_CERT_REQ_A;
402 case SSL3_ST_SW_CERT_REQ_A:
403 case SSL3_ST_SW_CERT_REQ_B:
404 if (/* don't request cert unless asked for it: */
405 !(s->verify_mode & SSL_VERIFY_PEER) ||
406 /* if SSL_VERIFY_CLIENT_ONCE is set,
407 * don't request cert during re-negotiation: */
408 ((s->session->peer != NULL) &&
409 (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) ||
410 /* never request cert in anonymous ciphersuites
411 * (see section "Certificate request" in SSL 3 drafts
412 * and in RFC 2246): */
413 ((s->s3->tmp.new_cipher->algorithms & SSL_aNULL) &&
414 /* ... except when the application insists on verification
415 * (against the specs, but s3_clnt.c accepts this for SSL 3) */
416 !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) ||
417 /* never request cert in Kerberos ciphersuites */
418 (s->s3->tmp.new_cipher->algorithms & SSL_aKRB5))
420 /* no cert request */
422 s->s3->tmp.cert_request=0;
423 s->state=SSL3_ST_SW_SRVR_DONE_A;
427 s->s3->tmp.cert_request=1;
428 ret=ssl3_send_certificate_request(s);
429 if (ret <= 0) goto end;
430 #ifndef NETSCAPE_HANG_BUG
431 s->state=SSL3_ST_SW_SRVR_DONE_A;
433 s->state=SSL3_ST_SW_FLUSH;
434 s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
440 case SSL3_ST_SW_SRVR_DONE_A:
441 case SSL3_ST_SW_SRVR_DONE_B:
442 ret=ssl3_send_server_done(s);
443 if (ret <= 0) goto end;
444 s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
445 s->state=SSL3_ST_SW_FLUSH;
449 case SSL3_ST_SW_FLUSH:
450 /* number of bytes to be flushed */
451 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
454 s->rwstate=SSL_WRITING;
455 num1=BIO_flush(s->wbio);
456 if (num1 <= 0) { ret= -1; goto end; }
457 s->rwstate=SSL_NOTHING;
460 s->state=s->s3->tmp.next_state;
463 case SSL3_ST_SR_CERT_A:
464 case SSL3_ST_SR_CERT_B:
465 /* Check for second client hello (MS SGC) */
466 ret = ssl3_check_client_hello(s);
470 s->state = SSL3_ST_SR_CLNT_HELLO_C;
472 /* could be sent for a DH cert, even if we
473 * have not asked for it :-) */
474 ret=ssl3_get_client_certificate(s);
475 if (ret <= 0) goto end;
477 s->state=SSL3_ST_SR_KEY_EXCH_A;
481 case SSL3_ST_SR_KEY_EXCH_A:
482 case SSL3_ST_SR_KEY_EXCH_B:
483 ret=ssl3_get_client_key_exchange(s);
488 /* For the ECDH ciphersuites when
489 * the client sends its ECDH pub key in
490 * a certificate, the CertificateVerify
491 * message is not sent.
493 s->state=SSL3_ST_SR_FINISHED_A;
498 s->state=SSL3_ST_SR_CERT_VRFY_A;
501 /* We need to get hashes here so if there is
502 * a client cert, it can be verified
504 s->method->ssl3_enc->cert_verify_mac(s,
505 &(s->s3->finish_dgst1),
506 &(s->s3->tmp.cert_verify_md[0]));
507 s->method->ssl3_enc->cert_verify_mac(s,
508 &(s->s3->finish_dgst2),
509 &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]));
513 case SSL3_ST_SR_CERT_VRFY_A:
514 case SSL3_ST_SR_CERT_VRFY_B:
516 /* we should decide if we expected this one */
517 ret=ssl3_get_cert_verify(s);
518 if (ret <= 0) goto end;
520 s->state=SSL3_ST_SR_FINISHED_A;
524 case SSL3_ST_SR_FINISHED_A:
525 case SSL3_ST_SR_FINISHED_B:
526 ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A,
527 SSL3_ST_SR_FINISHED_B);
528 if (ret <= 0) goto end;
532 s->state=SSL3_ST_SW_CHANGE_A;
536 case SSL3_ST_SW_CHANGE_A:
537 case SSL3_ST_SW_CHANGE_B:
539 s->session->cipher=s->s3->tmp.new_cipher;
540 if (!s->method->ssl3_enc->setup_key_block(s))
541 { ret= -1; goto end; }
543 ret=ssl3_send_change_cipher_spec(s,
544 SSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B);
546 if (ret <= 0) goto end;
547 s->state=SSL3_ST_SW_FINISHED_A;
550 if (!s->method->ssl3_enc->change_cipher_state(s,
551 SSL3_CHANGE_CIPHER_SERVER_WRITE))
559 case SSL3_ST_SW_FINISHED_A:
560 case SSL3_ST_SW_FINISHED_B:
561 ret=ssl3_send_finished(s,
562 SSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B,
563 s->method->ssl3_enc->server_finished_label,
564 s->method->ssl3_enc->server_finished_label_len);
565 if (ret <= 0) goto end;
566 s->state=SSL3_ST_SW_FLUSH;
568 s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A;
570 s->s3->tmp.next_state=SSL_ST_OK;
575 /* clean a few things up */
576 ssl3_cleanup_key_block(s);
578 BUF_MEM_free(s->init_buf);
581 /* remove buffering on output */
582 ssl_free_wbio_buffer(s);
586 if (s->new_session == 2) /* skipped if we just sent a HelloRequest */
588 /* actually not necessarily a 'new' session unless
589 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */
593 ssl_update_cache(s,SSL_SESS_CACHE_SERVER);
595 s->ctx->stats.sess_accept_good++;
597 s->handshake_func=ssl3_accept;
599 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
607 SSLerr(SSL_F_SSL3_ACCEPT,SSL_R_UNKNOWN_STATE);
613 if (!s->s3->tmp.reuse_message && !skip)
617 if ((ret=BIO_flush(s->wbio)) <= 0)
622 if ((cb != NULL) && (s->state != state))
626 cb(s,SSL_CB_ACCEPT_LOOP,1);
633 /* BIO_flush(s->wbio); */
637 cb(s,SSL_CB_ACCEPT_EXIT,ret);
641 static int ssl3_send_hello_request(SSL *s)
645 if (s->state == SSL3_ST_SW_HELLO_REQ_A)
647 p=(unsigned char *)s->init_buf->data;
648 *(p++)=SSL3_MT_HELLO_REQUEST;
653 s->state=SSL3_ST_SW_HELLO_REQ_B;
654 /* number of bytes to write */
659 /* SSL3_ST_SW_HELLO_REQ_B */
660 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
663 static int ssl3_check_client_hello(SSL *s)
668 /* this function is called when we really expect a Certificate message,
669 * so permit appropriate message length */
670 n=ssl3_get_message(s,
676 if (!ok) return((int)n);
677 s->s3->tmp.reuse_message = 1;
678 if (s->s3->tmp.message_type == SSL3_MT_CLIENT_HELLO)
680 /* Throw away what we have done so far in the current handshake,
681 * which will now be aborted. (A full SSL_clear would be too much.)
682 * I hope that tmp.dh is the only thing that may need to be cleared
683 * when a handshake is not completed ... */
684 #ifndef OPENSSL_NO_DH
685 if (s->s3->tmp.dh != NULL)
687 DH_free(s->s3->tmp.dh);
688 s->s3->tmp.dh = NULL;
696 static int ssl3_get_client_hello(SSL *s)
698 int i,j,ok,al,ret= -1;
701 unsigned char *p,*d,*q;
704 STACK_OF(SSL_CIPHER) *ciphers=NULL;
706 /* We do this so that we will respond with our native type.
707 * If we are TLSv1 and we get SSLv3, we will respond with TLSv1,
708 * This down switching should be handled by a different method.
709 * If we are SSLv3, we will respond with SSLv3, even if prompted with
712 if (s->state == SSL3_ST_SR_CLNT_HELLO_A)
715 s->state=SSL3_ST_SR_CLNT_HELLO_B;
717 n=ssl3_get_message(s,
718 SSL3_ST_SR_CLNT_HELLO_B,
719 SSL3_ST_SR_CLNT_HELLO_C,
720 SSL3_MT_CLIENT_HELLO,
721 SSL3_RT_MAX_PLAIN_LENGTH,
724 if (!ok) return((int)n);
725 d=p=(unsigned char *)s->init_msg;
727 /* use version from inside client hello, not from record header
728 * (may differ: see RFC 2246, Appendix E, second paragraph) */
729 s->client_version=(((int)p[0])<<8)|(int)p[1];
732 if (s->client_version < s->version)
734 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_WRONG_VERSION_NUMBER);
735 if ((s->client_version>>8) == SSL3_VERSION_MAJOR)
737 /* similar to ssl3_get_record, send alert using remote version number */
738 s->version = s->client_version;
740 al = SSL_AD_PROTOCOL_VERSION;
744 /* load the client random */
745 memcpy(s->s3->client_random,p,SSL3_RANDOM_SIZE);
748 /* get the session-id */
752 /* Versions before 0.9.7 always allow session reuse during renegotiation
753 * (i.e. when s->new_session is true), option
754 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is new with 0.9.7.
755 * Maybe this optional behaviour should always have been the default,
756 * but we cannot safely change the default behaviour (or new applications
757 * might be written that become totally unsecure when compiled with
758 * an earlier library version)
760 if (j == 0 || (s->new_session && (s->options & SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION)))
762 if (!ssl_get_new_session(s,1))
767 i=ssl_get_prev_session(s,p,j);
769 { /* previous session */
776 if (!ssl_get_new_session(s,1))
783 if ((i == 0) && (j != 0))
785 /* we need a cipher if we are not resuming a session */
786 al=SSL_AD_ILLEGAL_PARAMETER;
787 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_SPECIFIED);
792 /* not enough data */
793 al=SSL_AD_DECODE_ERROR;
794 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
797 if ((i > 0) && (ssl_bytes_to_cipher_list(s,p,i,&(ciphers))
804 /* If it is a hit, check that the cipher is in the list */
805 if ((s->hit) && (i > 0))
808 id=s->session->cipher->id;
811 printf("client sent %d ciphers\n",sk_num(ciphers));
813 for (i=0; i<sk_SSL_CIPHER_num(ciphers); i++)
815 c=sk_SSL_CIPHER_value(ciphers,i);
817 printf("client [%2d of %2d]:%s\n",
818 i,sk_num(ciphers),SSL_CIPHER_get_name(c));
828 if ((s->options & SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG) && (sk_SSL_CIPHER_num(ciphers) == 1))
830 /* Very bad for multi-threading.... */
831 s->session->cipher=sk_SSL_CIPHER_value(ciphers,
836 /* we need to have the cipher in the cipher
837 * list if we are asked to reuse it */
838 al=SSL_AD_ILLEGAL_PARAMETER;
839 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_REQUIRED_CIPHER_MISSING);
849 /* not enough data */
850 al=SSL_AD_DECODE_ERROR;
851 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
857 if (p[j] == 0) break;
864 al=SSL_AD_DECODE_ERROR;
865 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_COMPRESSION_SPECIFIED);
869 /* Worst case, we will use the NULL compression, but if we have other
870 * options, we will now look for them. We have i-1 compression
871 * algorithms from the client, starting at q. */
872 s->s3->tmp.new_compression=NULL;
873 if (s->ctx->comp_methods != NULL)
874 { /* See if we have a match */
877 nn=sk_SSL_COMP_num(s->ctx->comp_methods);
880 comp=sk_SSL_COMP_value(s->ctx->comp_methods,m);
893 s->s3->tmp.new_compression=comp;
898 /* TLS does not mind if there is extra stuff */
899 if (s->version == SSL3_VERSION)
903 /* wrong number of bytes,
904 * there could be more to follow */
905 al=SSL_AD_DECODE_ERROR;
906 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
911 /* Given s->session->ciphers and SSL_get_ciphers, we must
916 s->session->compress_meth=(comp == NULL)?0:comp->id;
917 if (s->session->ciphers != NULL)
918 sk_SSL_CIPHER_free(s->session->ciphers);
919 s->session->ciphers=ciphers;
922 al=SSL_AD_ILLEGAL_PARAMETER;
923 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_PASSED);
927 c=ssl3_choose_cipher(s,s->session->ciphers,
932 al=SSL_AD_HANDSHAKE_FAILURE;
933 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_SHARED_CIPHER);
936 s->s3->tmp.new_cipher=c;
940 /* Session-id reuse */
941 #ifdef REUSE_CIPHER_BUG
942 STACK_OF(SSL_CIPHER) *sk;
946 if (s->options & SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG)
948 sk=s->session->ciphers;
949 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
951 c=sk_SSL_CIPHER_value(sk,i);
952 if (c->algorithms & SSL_eNULL)
954 if (SSL_C_IS_EXPORT(c))
958 s->s3->tmp.new_cipher=nc;
960 s->s3->tmp.new_cipher=ec;
962 s->s3->tmp.new_cipher=s->session->cipher;
966 s->s3->tmp.new_cipher=s->session->cipher;
969 /* we now have the following setup.
971 * cipher_list - our prefered list of ciphers
972 * ciphers - the clients prefered list of ciphers
973 * compression - basically ignored right now
974 * ssl version is set - sslv3
975 * s->session - The ssl session has been setup.
976 * s->hit - session reuse flag
977 * s->tmp.new_cipher - the new cipher to use.
984 ssl3_send_alert(s,SSL3_AL_FATAL,al);
987 if (ciphers != NULL) sk_SSL_CIPHER_free(ciphers);
991 static int ssl3_send_server_hello(SSL *s)
996 unsigned long l,Time;
998 if (s->state == SSL3_ST_SW_SRVR_HELLO_A)
1000 buf=(unsigned char *)s->init_buf->data;
1001 p=s->s3->server_random;
1002 Time=time(NULL); /* Time */
1004 RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
1005 /* Do the message type and length last */
1008 *(p++)=s->version>>8;
1009 *(p++)=s->version&0xff;
1012 memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
1013 p+=SSL3_RANDOM_SIZE;
1015 /* now in theory we have 3 options to sending back the
1016 * session id. If it is a re-use, we send back the
1017 * old session-id, if it is a new session, we send
1018 * back the new session-id or we send back a 0 length
1019 * session-id if we want it to be single use.
1020 * Currently I will not implement the '0' length session-id
1021 * 12-Jan-98 - I'll now support the '0' length stuff.
1023 if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER))
1024 s->session->session_id_length=0;
1026 sl=s->session->session_id_length;
1027 if (sl > sizeof s->session->session_id)
1029 SSLerr(SSL_F_SSL3_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
1033 memcpy(p,s->session->session_id,sl);
1036 /* put the cipher */
1037 i=ssl3_put_cipher_by_char(s->s3->tmp.new_cipher,p);
1040 /* put the compression method */
1041 if (s->s3->tmp.new_compression == NULL)
1044 *(p++)=s->s3->tmp.new_compression->id;
1049 *(d++)=SSL3_MT_SERVER_HELLO;
1052 s->state=SSL3_ST_CW_CLNT_HELLO_B;
1053 /* number of bytes to write */
1058 /* SSL3_ST_CW_CLNT_HELLO_B */
1059 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
1062 static int ssl3_send_server_done(SSL *s)
1066 if (s->state == SSL3_ST_SW_SRVR_DONE_A)
1068 p=(unsigned char *)s->init_buf->data;
1071 *(p++)=SSL3_MT_SERVER_DONE;
1076 s->state=SSL3_ST_SW_SRVR_DONE_B;
1077 /* number of bytes to write */
1082 /* SSL3_ST_CW_CLNT_HELLO_B */
1083 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
1086 static int ssl3_send_server_key_exchange(SSL *s)
1088 #ifndef OPENSSL_NO_RSA
1092 unsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
1095 #ifndef OPENSSL_NO_DH
1098 #ifndef OPENSSL_NO_ECDH
1099 EC_KEY *ecdh=NULL, *ecdhp;
1100 unsigned char *encodedPoint = NULL;
1103 BN_CTX *bn_ctx = NULL;
1106 unsigned char *p,*d;
1116 EVP_MD_CTX_init(&md_ctx);
1117 if (s->state == SSL3_ST_SW_KEY_EXCH_A)
1119 type=s->s3->tmp.new_cipher->algorithms & SSL_MKEY_MASK;
1124 r[0]=r[1]=r[2]=r[3]=NULL;
1126 #ifndef OPENSSL_NO_RSA
1127 if (type & SSL_kRSA)
1130 if ((rsa == NULL) && (s->cert->rsa_tmp_cb != NULL))
1132 rsa=s->cert->rsa_tmp_cb(s,
1133 SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
1134 SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
1137 al=SSL_AD_HANDSHAKE_FAILURE;
1138 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY);
1146 al=SSL_AD_HANDSHAKE_FAILURE;
1147 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY);
1152 s->s3->tmp.use_rsa_tmp=1;
1156 #ifndef OPENSSL_NO_DH
1157 if (type & SSL_kEDH)
1160 if ((dhp == NULL) && (s->cert->dh_tmp_cb != NULL))
1161 dhp=s->cert->dh_tmp_cb(s,
1162 SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
1163 SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
1166 al=SSL_AD_HANDSHAKE_FAILURE;
1167 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);
1171 if (s->s3->tmp.dh != NULL)
1174 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1178 if ((dh=DHparams_dup(dhp)) == NULL)
1180 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);
1185 if ((dhp->pub_key == NULL ||
1186 dhp->priv_key == NULL ||
1187 (s->options & SSL_OP_SINGLE_DH_USE)))
1189 if(!DH_generate_key(dh))
1191 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,
1198 dh->pub_key=BN_dup(dhp->pub_key);
1199 dh->priv_key=BN_dup(dhp->priv_key);
1200 if ((dh->pub_key == NULL) ||
1201 (dh->priv_key == NULL))
1203 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);
1213 #ifndef OPENSSL_NO_ECDH
1214 if (type & SSL_kECDHE)
1216 ecdhp=cert->ecdh_tmp;
1217 if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL))
1219 ecdhp=s->cert->ecdh_tmp_cb(s,
1220 SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
1221 SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
1225 al=SSL_AD_HANDSHAKE_FAILURE;
1226 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
1230 if (s->s3->tmp.ecdh != NULL)
1232 EC_KEY_free(s->s3->tmp.ecdh);
1233 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1237 /* Duplicate the ECDH structure. */
1240 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
1243 if (!EC_KEY_up_ref(ecdhp))
1245 SSLerr(SSL_F_SSL3_CTRL,ERR_R_ECDH_LIB);
1250 s->s3->tmp.ecdh=ecdh;
1251 if ((ecdh->pub_key == NULL) ||
1252 (ecdh->priv_key == NULL) ||
1253 (s->options & SSL_OP_SINGLE_ECDH_USE))
1255 if(!EC_KEY_generate_key(ecdh))
1257 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
1262 if ((ecdh->group == NULL) ||
1263 (ecdh->pub_key == NULL) ||
1264 (ecdh->priv_key == NULL))
1266 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
1270 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1271 (EC_GROUP_get_degree(ecdh->group) > 163))
1273 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1277 /* XXX: For now, we only support ephemeral ECDH
1278 * keys over named (not generic) curves. For
1279 * supported named curves, curve_id is non-zero.
1282 nid2curve_id(EC_GROUP_get_nid(ecdh->group)))
1285 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);
1289 /* Encode the public key.
1290 * First check the size of encoding and
1291 * allocate memory accordingly.
1293 encodedlen = EC_POINT_point2oct(ecdh->group,
1295 POINT_CONVERSION_UNCOMPRESSED,
1298 encodedPoint = (unsigned char *)
1299 OPENSSL_malloc(encodedlen*sizeof(unsigned char));
1300 bn_ctx = BN_CTX_new();
1301 if ((encodedPoint == NULL) || (bn_ctx == NULL))
1303 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1308 encodedlen = EC_POINT_point2oct(ecdh->group,
1310 POINT_CONVERSION_UNCOMPRESSED,
1311 encodedPoint, encodedlen, bn_ctx);
1313 if (encodedlen == 0)
1315 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
1319 BN_CTX_free(bn_ctx); bn_ctx=NULL;
1321 /* XXX: For now, we only support named (not
1322 * generic) curves in ECDH ephemeral key exchanges.
1323 * In this situation, we need three additional bytes
1324 * to encode the entire ServerECDHParams
1329 /* We'll generate the serverKeyExchange message
1330 * explicitly so we can set these to NULLs
1337 #endif /* !OPENSSL_NO_ECDH */
1339 al=SSL_AD_HANDSHAKE_FAILURE;
1340 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
1343 for (i=0; r[i] != NULL; i++)
1345 nr[i]=BN_num_bytes(r[i]);
1349 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
1351 if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher))
1354 al=SSL_AD_DECODE_ERROR;
1357 kn=EVP_PKEY_size(pkey);
1365 if (!BUF_MEM_grow(buf,n+4+kn))
1367 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF);
1370 d=(unsigned char *)s->init_buf->data;
1373 for (i=0; r[i] != NULL; i++)
1380 #ifndef OPENSSL_NO_ECDH
1381 if (type & SSL_kECDHE)
1383 /* XXX: For now, we only support named (not generic) curves.
1384 * In this situation, the serverKeyExchange message has:
1385 * [1 byte CurveType], [1 byte CurveName]
1386 * [1 byte length of encoded point], followed by
1387 * the actual encoded point itself
1389 *p = NAMED_CURVE_TYPE;
1395 memcpy((unsigned char*)p,
1396 (unsigned char *)encodedPoint,
1398 OPENSSL_free(encodedPoint);
1406 /* n is the length of the params, they start at &(d[4])
1407 * and p points to the space at the end. */
1408 #ifndef OPENSSL_NO_RSA
1409 if (pkey->type == EVP_PKEY_RSA)
1413 for (num=2; num > 0; num--)
1415 EVP_DigestInit_ex(&md_ctx,(num == 2)
1416 ?s->ctx->md5:s->ctx->sha1, NULL);
1417 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1418 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1419 EVP_DigestUpdate(&md_ctx,&(d[4]),n);
1420 EVP_DigestFinal_ex(&md_ctx,q,
1421 (unsigned int *)&i);
1425 if (RSA_sign(NID_md5_sha1, md_buf, j,
1426 &(p[2]), &u, pkey->pkey.rsa) <= 0)
1428 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA);
1436 #if !defined(OPENSSL_NO_DSA)
1437 if (pkey->type == EVP_PKEY_DSA)
1440 EVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL);
1441 EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1442 EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1443 EVP_SignUpdate(&md_ctx,&(d[4]),n);
1444 if (!EVP_SignFinal(&md_ctx,&(p[2]),
1445 (unsigned int *)&i,pkey))
1447 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA);
1455 #if !defined(OPENSSL_NO_ECDSA)
1456 if (pkey->type == EVP_PKEY_EC)
1458 /* let's do ECDSA */
1459 EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1460 EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1461 EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1462 EVP_SignUpdate(&md_ctx,&(d[4]),n);
1463 if (!EVP_SignFinal(&md_ctx,&(p[2]),
1464 (unsigned int *)&i,pkey))
1466 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_ECDSA);
1475 /* Is this error check actually needed? */
1476 al=SSL_AD_HANDSHAKE_FAILURE;
1477 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE);
1482 *(d++)=SSL3_MT_SERVER_KEY_EXCHANGE;
1485 /* we should now have things packed up, so lets send
1491 s->state = SSL3_ST_SW_KEY_EXCH_B;
1492 EVP_MD_CTX_cleanup(&md_ctx);
1493 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
1495 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1497 #ifndef OPENSSL_NO_ECDH
1498 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
1499 BN_CTX_free(bn_ctx);
1501 EVP_MD_CTX_cleanup(&md_ctx);
1505 static int ssl3_send_certificate_request(SSL *s)
1507 unsigned char *p,*d;
1509 STACK_OF(X509_NAME) *sk=NULL;
1513 if (s->state == SSL3_ST_SW_CERT_REQ_A)
1517 d=p=(unsigned char *)&(buf->data[4]);
1519 /* get the list of acceptable cert types */
1521 n=ssl3_get_req_cert_type(s,p);
1530 sk=SSL_get_client_CA_list(s);
1534 for (i=0; i<sk_X509_NAME_num(sk); i++)
1536 name=sk_X509_NAME_value(sk,i);
1537 j=i2d_X509_NAME(name,NULL);
1538 if (!BUF_MEM_grow(buf,4+n+j+2))
1540 SSLerr(SSL_F_SSL3_SEND_CERTIFICATE_REQUEST,ERR_R_BUF_LIB);
1543 p=(unsigned char *)&(buf->data[4+n]);
1544 if (!(s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1547 i2d_X509_NAME(name,&p);
1554 i2d_X509_NAME(name,&p);
1555 j-=2; s2n(j,d); j+=2;
1561 /* else no CA names */
1562 p=(unsigned char *)&(buf->data[4+off]);
1565 d=(unsigned char *)buf->data;
1566 *(d++)=SSL3_MT_CERTIFICATE_REQUEST;
1569 /* we should now have things packed up, so lets send
1574 #ifdef NETSCAPE_HANG_BUG
1575 p=(unsigned char *)s->init_buf->data + s->init_num;
1578 *(p++)=SSL3_MT_SERVER_DONE;
1587 /* SSL3_ST_SW_CERT_REQ_B */
1588 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
1593 static int ssl3_get_client_key_exchange(SSL *s)
1599 #ifndef OPENSSL_NO_RSA
1601 EVP_PKEY *pkey=NULL;
1603 #ifndef OPENSSL_NO_DH
1607 #ifndef OPENSSL_NO_KRB5
1609 #endif /* OPENSSL_NO_KRB5 */
1611 #ifndef OPENSSL_NO_ECDH
1612 EC_KEY *srvr_ecdh = NULL;
1613 EVP_PKEY *clnt_pub_pkey = NULL;
1614 EC_POINT *clnt_ecpoint = NULL;
1615 BN_CTX *bn_ctx = NULL;
1618 n=ssl3_get_message(s,
1619 SSL3_ST_SR_KEY_EXCH_A,
1620 SSL3_ST_SR_KEY_EXCH_B,
1621 SSL3_MT_CLIENT_KEY_EXCHANGE,
1625 if (!ok) return((int)n);
1626 p=(unsigned char *)s->init_msg;
1628 l=s->s3->tmp.new_cipher->algorithms;
1630 #ifndef OPENSSL_NO_RSA
1633 /* FIX THIS UP EAY EAY EAY EAY */
1634 if (s->s3->tmp.use_rsa_tmp)
1636 if ((s->cert != NULL) && (s->cert->rsa_tmp != NULL))
1637 rsa=s->cert->rsa_tmp;
1638 /* Don't do a callback because rsa_tmp should
1639 * be sent already */
1642 al=SSL_AD_HANDSHAKE_FAILURE;
1643 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_PKEY);
1650 pkey=s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey;
1651 if ( (pkey == NULL) ||
1652 (pkey->type != EVP_PKEY_RSA) ||
1653 (pkey->pkey.rsa == NULL))
1655 al=SSL_AD_HANDSHAKE_FAILURE;
1656 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_RSA_CERTIFICATE);
1663 if (s->version > SSL3_VERSION)
1668 if (!(s->options & SSL_OP_TLS_D5_BUG))
1670 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_TLS_RSA_ENCRYPTED_VALUE_LENGTH_IS_WRONG);
1680 i=RSA_private_decrypt((int)n,p,p,rsa,RSA_PKCS1_PADDING);
1684 if (i != SSL_MAX_MASTER_KEY_LENGTH)
1686 al=SSL_AD_DECODE_ERROR;
1687 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
1690 if ((al == -1) && !((p[0] == (s->client_version>>8)) && (p[1] == (s->client_version & 0xff))))
1692 /* The premaster secret must contain the same version number as the
1693 * ClientHello to detect version rollback attacks (strangely, the
1694 * protocol does not offer such protection for DH ciphersuites).
1695 * However, buggy clients exist that send the negotiated protocol
1696 * version instead if the server does not support the requested
1698 * If SSL_OP_TLS_ROLLBACK_BUG is set, tolerate such clients. */
1699 if (!((s->options & SSL_OP_TLS_ROLLBACK_BUG) &&
1700 (p[0] == (s->version>>8)) && (p[1] == (s->version & 0xff))))
1702 al=SSL_AD_DECODE_ERROR;
1703 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BAD_PROTOCOL_VERSION_NUMBER);
1713 /* Some decryption failure -- use random value instead as countermeasure
1714 * against Bleichenbacher's attack on PKCS #1 v1.5 RSA padding
1715 * (see RFC 2246, section 7.4.7.1).
1716 * But note that due to length and protocol version checking, the
1717 * attack is impractical anyway (see section 5 in D. Bleichenbacher:
1718 * "Chosen Ciphertext Attacks Against Protocols Based on the RSA
1719 * Encryption Standard PKCS #1", CRYPTO '98, LNCS 1462, pp. 1-12).
1722 i = SSL_MAX_MASTER_KEY_LENGTH;
1723 p[0] = s->client_version >> 8;
1724 p[1] = s->client_version & 0xff;
1725 RAND_pseudo_bytes(p+2, i-2); /* should be RAND_bytes, but we cannot work around a failure */
1729 s->session->master_key_length=
1730 s->method->ssl3_enc->generate_master_secret(s,
1731 s->session->master_key,
1737 #ifndef OPENSSL_NO_DH
1738 if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
1743 if (!(s->options & SSL_OP_SSLEAY_080_CLIENT_DH_BUG))
1745 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_DH_PUBLIC_VALUE_LENGTH_IS_WRONG);
1755 if (n == 0L) /* the parameters are in the cert */
1757 al=SSL_AD_HANDSHAKE_FAILURE;
1758 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_UNABLE_TO_DECODE_DH_CERTS);
1763 if (s->s3->tmp.dh == NULL)
1765 al=SSL_AD_HANDSHAKE_FAILURE;
1766 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);
1770 dh_srvr=s->s3->tmp.dh;
1773 pub=BN_bin2bn(p,i,NULL);
1776 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_BN_LIB);
1780 i=DH_compute_key(p,pub,dh_srvr);
1784 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,ERR_R_DH_LIB);
1788 DH_free(s->s3->tmp.dh);
1793 s->session->master_key_length=
1794 s->method->ssl3_enc->generate_master_secret(s,
1795 s->session->master_key,p,i);
1800 #ifndef OPENSSL_NO_KRB5
1803 krb5_error_code krb5rc;
1804 krb5_data enc_ticket;
1805 krb5_data authenticator;
1807 KSSL_CTX *kssl_ctx = s->kssl_ctx;
1808 EVP_CIPHER_CTX ciph_ctx;
1809 EVP_CIPHER *enc = NULL;
1810 unsigned char iv[EVP_MAX_IV_LENGTH];
1811 unsigned char pms[SSL_MAX_MASTER_KEY_LENGTH
1812 + EVP_MAX_BLOCK_LENGTH];
1814 krb5_timestamp authtime = 0;
1815 krb5_ticket_times ttimes;
1817 EVP_CIPHER_CTX_init(&ciph_ctx);
1819 if (!kssl_ctx) kssl_ctx = kssl_ctx_new();
1822 enc_ticket.length = i;
1823 enc_ticket.data = (char *)p;
1824 p+=enc_ticket.length;
1827 authenticator.length = i;
1828 authenticator.data = (char *)p;
1829 p+=authenticator.length;
1833 enc_pms.data = (char *)p;
1836 /* Note that the length is checked again below,
1839 if(enc_pms.length > sizeof pms)
1841 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1842 SSL_R_DATA_LENGTH_TOO_LONG);
1846 if (n != enc_ticket.length + authenticator.length +
1849 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1850 SSL_R_DATA_LENGTH_TOO_LONG);
1854 if ((krb5rc = kssl_sget_tkt(kssl_ctx, &enc_ticket, &ttimes,
1858 printf("kssl_sget_tkt rtn %d [%d]\n",
1859 krb5rc, kssl_err.reason);
1861 printf("kssl_err text= %s\n", kssl_err.text);
1862 #endif /* KSSL_DEBUG */
1863 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1868 /* Note: no authenticator is not considered an error,
1869 ** but will return authtime == 0.
1871 if ((krb5rc = kssl_check_authent(kssl_ctx, &authenticator,
1872 &authtime, &kssl_err)) != 0)
1875 printf("kssl_check_authent rtn %d [%d]\n",
1876 krb5rc, kssl_err.reason);
1878 printf("kssl_err text= %s\n", kssl_err.text);
1879 #endif /* KSSL_DEBUG */
1880 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
1885 if ((krb5rc = kssl_validate_times(authtime, &ttimes)) != 0)
1887 SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, krb5rc);
1892 kssl_ctx_show(kssl_ctx);
1893 #endif /* KSSL_DEBUG */
1895 enc = kssl_map_enc(kssl_ctx->enctype);
1899 memset(iv, 0, EVP_MAX_IV_LENGTH); /* per RFC 1510 */
1901 if (!EVP_DecryptInit_ex(&ciph_ctx,enc,NULL,kssl_ctx->key,iv))
1903 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1904 SSL_R_DECRYPTION_FAILED);
1907 if (!EVP_DecryptUpdate(&ciph_ctx, pms,&outl,
1908 (unsigned char *)enc_pms.data, enc_pms.length))
1910 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1911 SSL_R_DECRYPTION_FAILED);
1914 if (outl > SSL_MAX_MASTER_KEY_LENGTH)
1916 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1917 SSL_R_DATA_LENGTH_TOO_LONG);
1920 if (!EVP_DecryptFinal_ex(&ciph_ctx,&(pms[outl]),&padl))
1922 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1923 SSL_R_DECRYPTION_FAILED);
1927 if (outl > SSL_MAX_MASTER_KEY_LENGTH)
1929 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1930 SSL_R_DATA_LENGTH_TOO_LONG);
1933 EVP_CIPHER_CTX_cleanup(&ciph_ctx);
1935 s->session->master_key_length=
1936 s->method->ssl3_enc->generate_master_secret(s,
1937 s->session->master_key, pms, outl);
1939 if (kssl_ctx->client_princ)
1941 int len = strlen(kssl_ctx->client_princ);
1942 if ( len < SSL_MAX_KRB5_PRINCIPAL_LENGTH )
1944 s->session->krb5_client_princ_len = len;
1945 memcpy(s->session->krb5_client_princ,kssl_ctx->client_princ,len);
1950 /* Was doing kssl_ctx_free() here,
1951 ** but it caused problems for apache.
1952 ** kssl_ctx = kssl_ctx_free(kssl_ctx);
1953 ** if (s->kssl_ctx) s->kssl_ctx = NULL;
1957 #endif /* OPENSSL_NO_KRB5 */
1959 #ifndef OPENSSL_NO_ECDH
1960 if ((l & SSL_kECDH) || (l & SSL_kECDHE))
1964 /* initialize structures for server's ECDH key pair */
1965 if ((srvr_ecdh = EC_KEY_new()) == NULL)
1967 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1968 ERR_R_MALLOC_FAILURE);
1972 /* Let's get server private key and group information */
1975 /* use the certificate */
1976 srvr_ecdh->group = s->cert->key->privatekey-> \
1978 srvr_ecdh->priv_key = s->cert->key->privatekey-> \
1979 pkey.eckey->priv_key;
1983 /* use the ephermeral values we saved when
1984 * generating the ServerKeyExchange msg.
1986 srvr_ecdh->group = s->s3->tmp.ecdh->group;
1987 srvr_ecdh->priv_key = s->s3->tmp.ecdh->priv_key;
1990 /* Let's get client's public key */
1991 if ((clnt_ecpoint = EC_POINT_new(srvr_ecdh->group))
1994 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
1995 ERR_R_MALLOC_FAILURE);
2001 /* Client Publickey was in Client Certificate */
2005 al=SSL_AD_HANDSHAKE_FAILURE;
2006 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
2009 if (((clnt_pub_pkey=X509_get_pubkey(s->session->peer))
2011 (clnt_pub_pkey->type != EVP_PKEY_EC))
2013 /* XXX: For now, we do not support client
2014 * authentication using ECDH certificates
2015 * so this branch (n == 0L) of the code is
2016 * never executed. When that support is
2017 * added, we ought to ensure the key
2018 * received in the certificate is
2019 * authorized for key agreement.
2020 * ECDH_compute_key implicitly checks that
2021 * the two ECDH shares are for the same
2024 al=SSL_AD_HANDSHAKE_FAILURE;
2025 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
2026 SSL_R_UNABLE_TO_DECODE_ECDH_CERTS);
2030 EC_POINT_copy(clnt_ecpoint,
2031 clnt_pub_pkey->pkey.eckey->pub_key);
2032 ret = 2; /* Skip certificate verify processing */
2036 /* Get client's public key from encoded point
2037 * in the ClientKeyExchange message.
2039 if ((bn_ctx = BN_CTX_new()) == NULL)
2041 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
2042 ERR_R_MALLOC_FAILURE);
2046 /* Get encoded point length */
2049 if (EC_POINT_oct2point(srvr_ecdh->group,
2050 clnt_ecpoint, p, i, bn_ctx) == 0)
2052 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
2056 /* p is pointing to somewhere in the buffer
2057 * currently, so set it to the start
2059 p=(unsigned char *)s->init_buf->data;
2062 /* Compute the shared pre-master secret */
2063 i = ECDH_compute_key(p, clnt_ecpoint, srvr_ecdh);
2066 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
2071 EVP_PKEY_free(clnt_pub_pkey);
2072 EC_POINT_free(clnt_ecpoint);
2073 if (srvr_ecdh != NULL)
2075 srvr_ecdh->priv_key = NULL;
2076 srvr_ecdh->group = NULL;
2077 EC_KEY_free(srvr_ecdh);
2079 BN_CTX_free(bn_ctx);
2081 /* Compute the master secret */
2082 s->session->master_key_length = s->method->ssl3_enc-> \
2083 generate_master_secret(s, s->session->master_key, p, i);
2091 al=SSL_AD_HANDSHAKE_FAILURE;
2092 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
2093 SSL_R_UNKNOWN_CIPHER_TYPE);
2099 ssl3_send_alert(s,SSL3_AL_FATAL,al);
2100 #if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_ECDH)
2103 #ifndef NO_OPENSSL_ECDH
2104 EVP_PKEY_free(clnt_pub_pkey);
2105 EC_POINT_free(clnt_ecpoint);
2106 if (srvr_ecdh != NULL)
2108 srvr_ecdh->priv_key = NULL;
2109 srvr_ecdh->group = NULL;
2110 EC_KEY_free(srvr_ecdh);
2112 BN_CTX_free(bn_ctx);
2117 static int ssl3_get_cert_verify(SSL *s)
2119 EVP_PKEY *pkey=NULL;
2126 n=ssl3_get_message(s,
2127 SSL3_ST_SR_CERT_VRFY_A,
2128 SSL3_ST_SR_CERT_VRFY_B,
2133 if (!ok) return((int)n);
2135 if (s->session->peer != NULL)
2137 peer=s->session->peer;
2138 pkey=X509_get_pubkey(peer);
2139 type=X509_certificate_type(peer,pkey);
2147 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE_VERIFY)
2149 s->s3->tmp.reuse_message=1;
2150 if ((peer != NULL) && (type | EVP_PKT_SIGN))
2152 al=SSL_AD_UNEXPECTED_MESSAGE;
2153 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_MISSING_VERIFY_MESSAGE);
2162 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_NO_CLIENT_CERT_RECEIVED);
2163 al=SSL_AD_UNEXPECTED_MESSAGE;
2167 if (!(type & EVP_PKT_SIGN))
2169 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_SIGNATURE_FOR_NON_SIGNING_CERTIFICATE);
2170 al=SSL_AD_ILLEGAL_PARAMETER;
2174 if (s->s3->change_cipher_spec)
2176 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_CCS_RECEIVED_EARLY);
2177 al=SSL_AD_UNEXPECTED_MESSAGE;
2181 /* we now have a signature that we need to verify */
2182 p=(unsigned char *)s->init_msg;
2187 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_LENGTH_MISMATCH);
2188 al=SSL_AD_DECODE_ERROR;
2192 j=EVP_PKEY_size(pkey);
2193 if ((i > j) || (n > j) || (n <= 0))
2195 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_WRONG_SIGNATURE_SIZE);
2196 al=SSL_AD_DECODE_ERROR;
2200 #ifndef OPENSSL_NO_RSA
2201 if (pkey->type == EVP_PKEY_RSA)
2203 i=RSA_verify(NID_md5_sha1, s->s3->tmp.cert_verify_md,
2204 MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH, p, i,
2208 al=SSL_AD_DECRYPT_ERROR;
2209 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_RSA_DECRYPT);
2214 al=SSL_AD_DECRYPT_ERROR;
2215 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_RSA_SIGNATURE);
2221 #ifndef OPENSSL_NO_DSA
2222 if (pkey->type == EVP_PKEY_DSA)
2224 j=DSA_verify(pkey->save_type,
2225 &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]),
2226 SHA_DIGEST_LENGTH,p,i,pkey->pkey.dsa);
2230 al=SSL_AD_DECRYPT_ERROR;
2231 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,SSL_R_BAD_DSA_SIGNATURE);
2237 #ifndef OPENSSL_NO_ECDSA
2238 if (pkey->type == EVP_PKEY_EC)
2240 j=ECDSA_verify(pkey->save_type,
2241 &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]),
2242 SHA_DIGEST_LENGTH,p,i,pkey->pkey.eckey);
2246 al=SSL_AD_DECRYPT_ERROR;
2247 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,
2248 SSL_R_BAD_ECDSA_SIGNATURE);
2255 SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,ERR_R_INTERNAL_ERROR);
2256 al=SSL_AD_UNSUPPORTED_CERTIFICATE;
2265 ssl3_send_alert(s,SSL3_AL_FATAL,al);
2268 EVP_PKEY_free(pkey);
2272 static int ssl3_get_client_certificate(SSL *s)
2274 int i,ok,al,ret= -1;
2276 unsigned long l,nc,llen,n;
2277 unsigned char *p,*d,*q;
2278 STACK_OF(X509) *sk=NULL;
2280 n=ssl3_get_message(s,
2287 if (!ok) return((int)n);
2289 if (s->s3->tmp.message_type == SSL3_MT_CLIENT_KEY_EXCHANGE)
2291 if ( (s->verify_mode & SSL_VERIFY_PEER) &&
2292 (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT))
2294 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE);
2295 al=SSL_AD_HANDSHAKE_FAILURE;
2298 /* If tls asked for a client cert, the client must return a 0 list */
2299 if ((s->version > SSL3_VERSION) && s->s3->tmp.cert_request)
2301 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_TLS_PEER_DID_NOT_RESPOND_WITH_CERTIFICATE_LIST);
2302 al=SSL_AD_UNEXPECTED_MESSAGE;
2305 s->s3->tmp.reuse_message=1;
2309 if (s->s3->tmp.message_type != SSL3_MT_CERTIFICATE)
2311 al=SSL_AD_UNEXPECTED_MESSAGE;
2312 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_WRONG_MESSAGE_TYPE);
2315 d=p=(unsigned char *)s->init_msg;
2317 if ((sk=sk_X509_new_null()) == NULL)
2319 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,ERR_R_MALLOC_FAILURE);
2326 al=SSL_AD_DECODE_ERROR;
2327 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_LENGTH_MISMATCH);
2330 for (nc=0; nc<llen; )
2333 if ((l+nc+3) > llen)
2335 al=SSL_AD_DECODE_ERROR;
2336 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
2341 x=d2i_X509(NULL,&p,l);
2344 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,ERR_R_ASN1_LIB);
2349 al=SSL_AD_DECODE_ERROR;
2350 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_CERT_LENGTH_MISMATCH);
2353 if (!sk_X509_push(sk,x))
2355 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,ERR_R_MALLOC_FAILURE);
2362 if (sk_X509_num(sk) <= 0)
2364 /* TLS does not mind 0 certs returned */
2365 if (s->version == SSL3_VERSION)
2367 al=SSL_AD_HANDSHAKE_FAILURE;
2368 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_NO_CERTIFICATES_RETURNED);
2371 /* Fail for TLS only if we required a certificate */
2372 else if ((s->verify_mode & SSL_VERIFY_PEER) &&
2373 (s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT))
2375 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_PEER_DID_NOT_RETURN_A_CERTIFICATE);
2376 al=SSL_AD_HANDSHAKE_FAILURE;
2382 i=ssl_verify_cert_chain(s,sk);
2385 al=ssl_verify_alarm_type(s->verify_result);
2386 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_NO_CERTIFICATE_RETURNED);
2391 if (s->session->peer != NULL) /* This should not be needed */
2392 X509_free(s->session->peer);
2393 s->session->peer=sk_X509_shift(sk);
2394 s->session->verify_result = s->verify_result;
2396 /* With the current implementation, sess_cert will always be NULL
2397 * when we arrive here. */
2398 if (s->session->sess_cert == NULL)
2400 s->session->sess_cert = ssl_sess_cert_new();
2401 if (s->session->sess_cert == NULL)
2403 SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE, ERR_R_MALLOC_FAILURE);
2407 if (s->session->sess_cert->cert_chain != NULL)
2408 sk_X509_pop_free(s->session->sess_cert->cert_chain, X509_free);
2409 s->session->sess_cert->cert_chain=sk;
2410 /* Inconsistency alert: cert_chain does *not* include the
2411 * peer's own certificate, while we do include it in s3_clnt.c */
2419 ssl3_send_alert(s,SSL3_AL_FATAL,al);
2422 if (x != NULL) X509_free(x);
2423 if (sk != NULL) sk_X509_pop_free(sk,X509_free);
2427 int ssl3_send_server_certificate(SSL *s)
2432 if (s->state == SSL3_ST_SW_CERT_A)
2434 x=ssl_get_server_send_cert(s);
2436 /* VRS: allow null cert if auth == KRB5 */
2437 (s->s3->tmp.new_cipher->algorithms
2438 & (SSL_MKEY_MASK|SSL_AUTH_MASK))
2439 != (SSL_aKRB5|SSL_kKRB5))
2441 SSLerr(SSL_F_SSL3_SEND_SERVER_CERTIFICATE,ERR_R_INTERNAL_ERROR);
2445 l=ssl3_output_cert_chain(s,x);
2446 s->state=SSL3_ST_SW_CERT_B;
2451 /* SSL3_ST_SW_CERT_B */
2452 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
2456 #ifndef OPENSSL_NO_ECDH
2457 /* This is the complement of curve_id2nid in s3_clnt.c. */
2458 static int nid2curve_id(int nid)
2460 /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001) */
2462 case NID_sect163k1: /* sect163k1 (1) */
2464 case NID_sect163r1: /* sect163r1 (2) */
2466 case NID_sect163r2: /* sect163r2 (3) */
2468 case NID_sect193r1: /* sect193r1 (4) */
2470 case NID_sect193r2: /* sect193r2 (5) */
2472 case NID_sect233k1: /* sect233k1 (6) */
2474 case NID_sect233r1: /* sect233r1 (7) */
2476 case NID_sect239k1: /* sect239k1 (8) */
2478 case NID_sect283k1: /* sect283k1 (9) */
2480 case NID_sect283r1: /* sect283r1 (10) */
2482 case NID_sect409k1: /* sect409k1 (11) */
2484 case NID_sect409r1: /* sect409r1 (12) */
2486 case NID_sect571k1: /* sect571k1 (13) */
2488 case NID_sect571r1: /* sect571r1 (14) */
2490 case NID_secp160k1: /* secp160k1 (15) */
2492 case NID_secp160r1: /* secp160r1 (16) */
2494 case NID_secp160r2: /* secp160r2 (17) */
2496 case NID_secp192k1: /* secp192k1 (18) */
2498 case NID_X9_62_prime192v1: /* secp192r1 (19) */
2500 case NID_secp224k1: /* secp224k1 (20) */
2502 case NID_secp224r1: /* secp224r1 (21) */
2504 case NID_secp256k1: /* secp256k1 (22) */
2506 case NID_X9_62_prime256v1: /* secp256r1 (23) */
2508 case NID_secp384r1: /* secp384r1 (24) */
2510 case NID_secp521r1: /* secp521r1 (25) */