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) 1998-2003 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 * ECC cipher suite support in OpenSSL originally written by
121 * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
125 #define REUSE_CIPHER_BUG
126 #define NETSCAPE_HANG_BUG
129 #include "ssl_locl.h"
130 #include "kssl_lcl.h"
131 #include <openssl/buffer.h>
132 #include <openssl/rand.h>
133 #include <openssl/objects.h>
134 #include <openssl/evp.h>
135 #include <openssl/x509.h>
136 #include <openssl/krb5_asn.h>
137 #include <openssl/md5.h>
138 #include "cryptlib.h"
140 static SSL_METHOD *ssl3_get_server_method(int ver);
141 static int ssl3_get_client_hello(SSL *s);
142 static int ssl3_check_client_hello(SSL *s);
143 static int ssl3_send_server_hello(SSL *s);
144 static int ssl3_send_server_key_exchange(SSL *s);
145 static int ssl3_send_certificate_request(SSL *s);
146 static int ssl3_send_server_done(SSL *s);
147 static int ssl3_get_client_key_exchange(SSL *s);
148 static int ssl3_get_client_certificate(SSL *s);
149 static int ssl3_get_cert_verify(SSL *s);
150 static int ssl3_send_hello_request(SSL *s);
152 #ifndef OPENSSL_NO_ECDH
153 static int nid2curve_id(int nid);
156 static SSL_METHOD *ssl3_get_server_method(int ver)
158 if (ver == SSL3_VERSION)
159 return(SSLv3_server_method());
164 SSL_METHOD *SSLv3_server_method(void)
167 static SSL_METHOD SSLv3_server_data;
171 CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
175 memcpy((char *)&SSLv3_server_data,(char *)sslv3_base_method(),
177 SSLv3_server_data.ssl_accept=ssl3_accept;
178 SSLv3_server_data.get_ssl_method=ssl3_get_server_method;
182 CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
184 return(&SSLv3_server_data);
187 int ssl3_accept(SSL *s)
190 unsigned long l,Time=time(NULL);
191 void (*cb)(const SSL *ssl,int type,int val)=NULL;
194 int new_state,state,skip=0;
196 RAND_add(&Time,sizeof(Time),0);
200 if (s->info_callback != NULL)
202 else if (s->ctx->info_callback != NULL)
203 cb=s->ctx->info_callback;
205 /* init things to blank */
207 if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
211 SSLerr(SSL_F_SSL3_ACCEPT,SSL_R_NO_CERTIFICATE_SET);
221 case SSL_ST_RENEGOTIATE:
223 /* s->state=SSL_ST_ACCEPT; */
227 case SSL_ST_BEFORE|SSL_ST_ACCEPT:
228 case SSL_ST_OK|SSL_ST_ACCEPT:
231 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
233 if ((s->version>>8) != 3)
235 SSLerr(SSL_F_SSL3_ACCEPT, ERR_R_INTERNAL_ERROR);
238 s->type=SSL_ST_ACCEPT;
240 if (s->init_buf == NULL)
242 if ((buf=BUF_MEM_new()) == NULL)
247 if (!BUF_MEM_grow(buf,SSL3_RT_MAX_PLAIN_LENGTH))
255 if (!ssl3_setup_buffers(s))
263 if (s->state != SSL_ST_RENEGOTIATE)
265 /* Ok, we now need to push on a buffering BIO so that
266 * the output is sent in a way that TCP likes :-)
268 if (!ssl_init_wbio_buffer(s,1)) { ret= -1; goto end; }
270 ssl3_init_finished_mac(s);
271 s->state=SSL3_ST_SR_CLNT_HELLO_A;
272 s->ctx->stats.sess_accept++;
276 /* s->state == SSL_ST_RENEGOTIATE,
277 * we will just send a HelloRequest */
278 s->ctx->stats.sess_accept_renegotiate++;
279 s->state=SSL3_ST_SW_HELLO_REQ_A;
283 case SSL3_ST_SW_HELLO_REQ_A:
284 case SSL3_ST_SW_HELLO_REQ_B:
287 ret=ssl3_send_hello_request(s);
288 if (ret <= 0) goto end;
289 s->s3->tmp.next_state=SSL3_ST_SW_HELLO_REQ_C;
290 s->state=SSL3_ST_SW_FLUSH;
293 ssl3_init_finished_mac(s);
296 case SSL3_ST_SW_HELLO_REQ_C:
300 case SSL3_ST_SR_CLNT_HELLO_A:
301 case SSL3_ST_SR_CLNT_HELLO_B:
302 case SSL3_ST_SR_CLNT_HELLO_C:
305 ret=ssl3_get_client_hello(s);
306 if (ret <= 0) goto end;
308 s->state=SSL3_ST_SW_SRVR_HELLO_A;
312 case SSL3_ST_SW_SRVR_HELLO_A:
313 case SSL3_ST_SW_SRVR_HELLO_B:
314 ret=ssl3_send_server_hello(s);
315 if (ret <= 0) goto end;
318 s->state=SSL3_ST_SW_CHANGE_A;
320 s->state=SSL3_ST_SW_CERT_A;
324 case SSL3_ST_SW_CERT_A:
325 case SSL3_ST_SW_CERT_B:
326 /* Check if it is anon DH or anon ECDH */
327 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
329 ret=ssl3_send_server_certificate(s);
330 if (ret <= 0) goto end;
334 s->state=SSL3_ST_SW_KEY_EXCH_A;
338 case SSL3_ST_SW_KEY_EXCH_A:
339 case SSL3_ST_SW_KEY_EXCH_B:
340 l=s->s3->tmp.new_cipher->algorithms;
342 /* clear this, it may get reset by
343 * send_server_key_exchange */
344 if ((s->options & SSL_OP_EPHEMERAL_RSA)
345 #ifndef OPENSSL_NO_KRB5
347 #endif /* OPENSSL_NO_KRB5 */
349 /* option SSL_OP_EPHEMERAL_RSA sends temporary RSA key
350 * even when forbidden by protocol specs
351 * (handshake may fail as clients are not required to
352 * be able to handle this) */
353 s->s3->tmp.use_rsa_tmp=1;
355 s->s3->tmp.use_rsa_tmp=0;
358 /* only send if a DH key exchange, fortezza or
359 * RSA but we have a sign only certificate
361 * For ECC ciphersuites, we send a serverKeyExchange
362 * message only if the cipher suite is either
363 * ECDH-anon or ECDHE. In other cases, the
364 * server certificate contains the server's
365 * public key for key exchange.
367 if (s->s3->tmp.use_rsa_tmp
369 || (l & (SSL_DH|SSL_kFZA))
371 && (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL
372 || (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher)
373 && EVP_PKEY_size(s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher)
379 ret=ssl3_send_server_key_exchange(s);
380 if (ret <= 0) goto end;
385 s->state=SSL3_ST_SW_CERT_REQ_A;
389 case SSL3_ST_SW_CERT_REQ_A:
390 case SSL3_ST_SW_CERT_REQ_B:
391 if (/* don't request cert unless asked for it: */
392 !(s->verify_mode & SSL_VERIFY_PEER) ||
393 /* if SSL_VERIFY_CLIENT_ONCE is set,
394 * don't request cert during re-negotiation: */
395 ((s->session->peer != NULL) &&
396 (s->verify_mode & SSL_VERIFY_CLIENT_ONCE)) ||
397 /* never request cert in anonymous ciphersuites
398 * (see section "Certificate request" in SSL 3 drafts
399 * and in RFC 2246): */
400 ((s->s3->tmp.new_cipher->algorithms & SSL_aNULL) &&
401 /* ... except when the application insists on verification
402 * (against the specs, but s3_clnt.c accepts this for SSL 3) */
403 !(s->verify_mode & SSL_VERIFY_FAIL_IF_NO_PEER_CERT)) ||
404 /* never request cert in Kerberos ciphersuites */
405 (s->s3->tmp.new_cipher->algorithms & SSL_aKRB5))
407 /* no cert request */
409 s->s3->tmp.cert_request=0;
410 s->state=SSL3_ST_SW_SRVR_DONE_A;
414 s->s3->tmp.cert_request=1;
415 ret=ssl3_send_certificate_request(s);
416 if (ret <= 0) goto end;
417 #ifndef NETSCAPE_HANG_BUG
418 s->state=SSL3_ST_SW_SRVR_DONE_A;
420 s->state=SSL3_ST_SW_FLUSH;
421 s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
427 case SSL3_ST_SW_SRVR_DONE_A:
428 case SSL3_ST_SW_SRVR_DONE_B:
429 ret=ssl3_send_server_done(s);
430 if (ret <= 0) goto end;
431 s->s3->tmp.next_state=SSL3_ST_SR_CERT_A;
432 s->state=SSL3_ST_SW_FLUSH;
436 case SSL3_ST_SW_FLUSH:
437 /* number of bytes to be flushed */
438 num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
441 s->rwstate=SSL_WRITING;
442 num1=BIO_flush(s->wbio);
443 if (num1 <= 0) { ret= -1; goto end; }
444 s->rwstate=SSL_NOTHING;
447 s->state=s->s3->tmp.next_state;
450 case SSL3_ST_SR_CERT_A:
451 case SSL3_ST_SR_CERT_B:
452 /* Check for second client hello (MS SGC) */
453 ret = ssl3_check_client_hello(s);
457 s->state = SSL3_ST_SR_CLNT_HELLO_C;
459 /* could be sent for a DH cert, even if we
460 * have not asked for it :-) */
461 ret=ssl3_get_client_certificate(s);
462 if (ret <= 0) goto end;
464 s->state=SSL3_ST_SR_KEY_EXCH_A;
468 case SSL3_ST_SR_KEY_EXCH_A:
469 case SSL3_ST_SR_KEY_EXCH_B:
470 ret=ssl3_get_client_key_exchange(s);
475 /* For the ECDH ciphersuites when
476 * the client sends its ECDH pub key in
477 * a certificate, the CertificateVerify
478 * message is not sent.
480 s->state=SSL3_ST_SR_FINISHED_A;
485 s->state=SSL3_ST_SR_CERT_VRFY_A;
488 /* We need to get hashes here so if there is
489 * a client cert, it can be verified
491 s->method->ssl3_enc->cert_verify_mac(s,
492 &(s->s3->finish_dgst1),
493 &(s->s3->tmp.cert_verify_md[0]));
494 s->method->ssl3_enc->cert_verify_mac(s,
495 &(s->s3->finish_dgst2),
496 &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]));
500 case SSL3_ST_SR_CERT_VRFY_A:
501 case SSL3_ST_SR_CERT_VRFY_B:
503 /* we should decide if we expected this one */
504 ret=ssl3_get_cert_verify(s);
505 if (ret <= 0) goto end;
507 s->state=SSL3_ST_SR_FINISHED_A;
511 case SSL3_ST_SR_FINISHED_A:
512 case SSL3_ST_SR_FINISHED_B:
513 ret=ssl3_get_finished(s,SSL3_ST_SR_FINISHED_A,
514 SSL3_ST_SR_FINISHED_B);
515 if (ret <= 0) goto end;
519 s->state=SSL3_ST_SW_CHANGE_A;
523 case SSL3_ST_SW_CHANGE_A:
524 case SSL3_ST_SW_CHANGE_B:
526 s->session->cipher=s->s3->tmp.new_cipher;
527 if (!s->method->ssl3_enc->setup_key_block(s))
528 { ret= -1; goto end; }
530 ret=ssl3_send_change_cipher_spec(s,
531 SSL3_ST_SW_CHANGE_A,SSL3_ST_SW_CHANGE_B);
533 if (ret <= 0) goto end;
534 s->state=SSL3_ST_SW_FINISHED_A;
537 if (!s->method->ssl3_enc->change_cipher_state(s,
538 SSL3_CHANGE_CIPHER_SERVER_WRITE))
546 case SSL3_ST_SW_FINISHED_A:
547 case SSL3_ST_SW_FINISHED_B:
548 ret=ssl3_send_finished(s,
549 SSL3_ST_SW_FINISHED_A,SSL3_ST_SW_FINISHED_B,
550 s->method->ssl3_enc->server_finished_label,
551 s->method->ssl3_enc->server_finished_label_len);
552 if (ret <= 0) goto end;
553 s->state=SSL3_ST_SW_FLUSH;
555 s->s3->tmp.next_state=SSL3_ST_SR_FINISHED_A;
557 s->s3->tmp.next_state=SSL_ST_OK;
562 /* clean a few things up */
563 ssl3_cleanup_key_block(s);
565 BUF_MEM_free(s->init_buf);
568 /* remove buffering on output */
569 ssl_free_wbio_buffer(s);
573 if (s->new_session == 2) /* skipped if we just sent a HelloRequest */
575 /* actually not necessarily a 'new' session unless
576 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is set */
580 ssl_update_cache(s,SSL_SESS_CACHE_SERVER);
582 s->ctx->stats.sess_accept_good++;
584 s->handshake_func=ssl3_accept;
586 if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_DONE,1);
594 SSLerr(SSL_F_SSL3_ACCEPT,SSL_R_UNKNOWN_STATE);
600 if (!s->s3->tmp.reuse_message && !skip)
604 if ((ret=BIO_flush(s->wbio)) <= 0)
609 if ((cb != NULL) && (s->state != state))
613 cb(s,SSL_CB_ACCEPT_LOOP,1);
620 /* BIO_flush(s->wbio); */
624 cb(s,SSL_CB_ACCEPT_EXIT,ret);
628 static int ssl3_send_hello_request(SSL *s)
632 if (s->state == SSL3_ST_SW_HELLO_REQ_A)
634 p=(unsigned char *)s->init_buf->data;
635 *(p++)=SSL3_MT_HELLO_REQUEST;
640 s->state=SSL3_ST_SW_HELLO_REQ_B;
641 /* number of bytes to write */
646 /* SSL3_ST_SW_HELLO_REQ_B */
647 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
650 static int ssl3_check_client_hello(SSL *s)
655 /* this function is called when we really expect a Certificate message,
656 * so permit appropriate message length */
657 n=ssl3_get_message(s,
663 if (!ok) return((int)n);
664 s->s3->tmp.reuse_message = 1;
665 if (s->s3->tmp.message_type == SSL3_MT_CLIENT_HELLO)
667 /* Throw away what we have done so far in the current handshake,
668 * which will now be aborted. (A full SSL_clear would be too much.)
669 * I hope that tmp.dh is the only thing that may need to be cleared
670 * when a handshake is not completed ... */
671 #ifndef OPENSSL_NO_DH
672 if (s->s3->tmp.dh != NULL)
674 DH_free(s->s3->tmp.dh);
675 s->s3->tmp.dh = NULL;
683 static int ssl3_get_client_hello(SSL *s)
685 int i,j,ok,al,ret= -1;
688 unsigned char *p,*d,*q;
691 STACK_OF(SSL_CIPHER) *ciphers=NULL;
693 /* We do this so that we will respond with our native type.
694 * If we are TLSv1 and we get SSLv3, we will respond with TLSv1,
695 * This down switching should be handled by a different method.
696 * If we are SSLv3, we will respond with SSLv3, even if prompted with
699 if (s->state == SSL3_ST_SR_CLNT_HELLO_A)
702 s->state=SSL3_ST_SR_CLNT_HELLO_B;
704 n=ssl3_get_message(s,
705 SSL3_ST_SR_CLNT_HELLO_B,
706 SSL3_ST_SR_CLNT_HELLO_C,
707 SSL3_MT_CLIENT_HELLO,
708 SSL3_RT_MAX_PLAIN_LENGTH,
711 if (!ok) return((int)n);
712 d=p=(unsigned char *)s->init_msg;
714 /* use version from inside client hello, not from record header
715 * (may differ: see RFC 2246, Appendix E, second paragraph) */
716 s->client_version=(((int)p[0])<<8)|(int)p[1];
719 if (s->client_version < s->version)
721 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_WRONG_VERSION_NUMBER);
722 if ((s->client_version>>8) == SSL3_VERSION_MAJOR)
724 /* similar to ssl3_get_record, send alert using remote version number */
725 s->version = s->client_version;
727 al = SSL_AD_PROTOCOL_VERSION;
731 /* load the client random */
732 memcpy(s->s3->client_random,p,SSL3_RANDOM_SIZE);
735 /* get the session-id */
739 /* Versions before 0.9.7 always allow session reuse during renegotiation
740 * (i.e. when s->new_session is true), option
741 * SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION is new with 0.9.7.
742 * Maybe this optional behaviour should always have been the default,
743 * but we cannot safely change the default behaviour (or new applications
744 * might be written that become totally unsecure when compiled with
745 * an earlier library version)
747 if (j == 0 || (s->new_session && (s->options & SSL_OP_NO_SESSION_RESUMPTION_ON_RENEGOTIATION)))
749 if (!ssl_get_new_session(s,1))
754 i=ssl_get_prev_session(s,p,j);
756 { /* previous session */
763 if (!ssl_get_new_session(s,1))
770 if ((i == 0) && (j != 0))
772 /* we need a cipher if we are not resuming a session */
773 al=SSL_AD_ILLEGAL_PARAMETER;
774 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_SPECIFIED);
779 /* not enough data */
780 al=SSL_AD_DECODE_ERROR;
781 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
784 if ((i > 0) && (ssl_bytes_to_cipher_list(s,p,i,&(ciphers))
791 /* If it is a hit, check that the cipher is in the list */
792 if ((s->hit) && (i > 0))
795 id=s->session->cipher->id;
798 printf("client sent %d ciphers\n",sk_num(ciphers));
800 for (i=0; i<sk_SSL_CIPHER_num(ciphers); i++)
802 c=sk_SSL_CIPHER_value(ciphers,i);
804 printf("client [%2d of %2d]:%s\n",
805 i,sk_num(ciphers),SSL_CIPHER_get_name(c));
815 if ((s->options & SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG) && (sk_SSL_CIPHER_num(ciphers) == 1))
817 /* Very bad for multi-threading.... */
818 s->session->cipher=sk_SSL_CIPHER_value(ciphers,
823 /* we need to have the cipher in the cipher
824 * list if we are asked to reuse it */
825 al=SSL_AD_ILLEGAL_PARAMETER;
826 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_REQUIRED_CIPHER_MISSING);
836 /* not enough data */
837 al=SSL_AD_DECODE_ERROR;
838 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
844 if (p[j] == 0) break;
851 al=SSL_AD_DECODE_ERROR;
852 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_COMPRESSION_SPECIFIED);
856 /* Worst case, we will use the NULL compression, but if we have other
857 * options, we will now look for them. We have i-1 compression
858 * algorithms from the client, starting at q. */
859 s->s3->tmp.new_compression=NULL;
860 if (s->ctx->comp_methods != NULL)
861 { /* See if we have a match */
864 nn=sk_SSL_COMP_num(s->ctx->comp_methods);
867 comp=sk_SSL_COMP_value(s->ctx->comp_methods,m);
880 s->s3->tmp.new_compression=comp;
885 /* TLS does not mind if there is extra stuff */
886 if (s->version == SSL3_VERSION)
890 /* wrong number of bytes,
891 * there could be more to follow */
892 al=SSL_AD_DECODE_ERROR;
893 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_LENGTH_MISMATCH);
898 /* Given s->session->ciphers and SSL_get_ciphers, we must
903 s->session->compress_meth=(comp == NULL)?0:comp->id;
904 if (s->session->ciphers != NULL)
905 sk_SSL_CIPHER_free(s->session->ciphers);
906 s->session->ciphers=ciphers;
909 al=SSL_AD_ILLEGAL_PARAMETER;
910 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_CIPHERS_PASSED);
914 c=ssl3_choose_cipher(s,s->session->ciphers,
919 al=SSL_AD_HANDSHAKE_FAILURE;
920 SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO,SSL_R_NO_SHARED_CIPHER);
923 s->s3->tmp.new_cipher=c;
927 /* Session-id reuse */
928 #ifdef REUSE_CIPHER_BUG
929 STACK_OF(SSL_CIPHER) *sk;
933 if (s->options & SSL_OP_NETSCAPE_DEMO_CIPHER_CHANGE_BUG)
935 sk=s->session->ciphers;
936 for (i=0; i<sk_SSL_CIPHER_num(sk); i++)
938 c=sk_SSL_CIPHER_value(sk,i);
939 if (c->algorithms & SSL_eNULL)
941 if (SSL_C_IS_EXPORT(c))
945 s->s3->tmp.new_cipher=nc;
947 s->s3->tmp.new_cipher=ec;
949 s->s3->tmp.new_cipher=s->session->cipher;
953 s->s3->tmp.new_cipher=s->session->cipher;
956 /* we now have the following setup.
958 * cipher_list - our prefered list of ciphers
959 * ciphers - the clients prefered list of ciphers
960 * compression - basically ignored right now
961 * ssl version is set - sslv3
962 * s->session - The ssl session has been setup.
963 * s->hit - session reuse flag
964 * s->tmp.new_cipher - the new cipher to use.
971 ssl3_send_alert(s,SSL3_AL_FATAL,al);
974 if (ciphers != NULL) sk_SSL_CIPHER_free(ciphers);
978 static int ssl3_send_server_hello(SSL *s)
983 unsigned long l,Time;
985 if (s->state == SSL3_ST_SW_SRVR_HELLO_A)
987 buf=(unsigned char *)s->init_buf->data;
988 p=s->s3->server_random;
989 Time=time(NULL); /* Time */
991 RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
992 /* Do the message type and length last */
995 *(p++)=s->version>>8;
996 *(p++)=s->version&0xff;
999 memcpy(p,s->s3->server_random,SSL3_RANDOM_SIZE);
1000 p+=SSL3_RANDOM_SIZE;
1002 /* now in theory we have 3 options to sending back the
1003 * session id. If it is a re-use, we send back the
1004 * old session-id, if it is a new session, we send
1005 * back the new session-id or we send back a 0 length
1006 * session-id if we want it to be single use.
1007 * Currently I will not implement the '0' length session-id
1008 * 12-Jan-98 - I'll now support the '0' length stuff.
1010 if (!(s->ctx->session_cache_mode & SSL_SESS_CACHE_SERVER))
1011 s->session->session_id_length=0;
1013 sl=s->session->session_id_length;
1014 if (sl > sizeof s->session->session_id)
1016 SSLerr(SSL_F_SSL3_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
1020 memcpy(p,s->session->session_id,sl);
1023 /* put the cipher */
1024 i=ssl3_put_cipher_by_char(s->s3->tmp.new_cipher,p);
1027 /* put the compression method */
1028 if (s->s3->tmp.new_compression == NULL)
1031 *(p++)=s->s3->tmp.new_compression->id;
1036 *(d++)=SSL3_MT_SERVER_HELLO;
1039 s->state=SSL3_ST_CW_CLNT_HELLO_B;
1040 /* number of bytes to write */
1045 /* SSL3_ST_CW_CLNT_HELLO_B */
1046 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
1049 static int ssl3_send_server_done(SSL *s)
1053 if (s->state == SSL3_ST_SW_SRVR_DONE_A)
1055 p=(unsigned char *)s->init_buf->data;
1058 *(p++)=SSL3_MT_SERVER_DONE;
1063 s->state=SSL3_ST_SW_SRVR_DONE_B;
1064 /* number of bytes to write */
1069 /* SSL3_ST_CW_CLNT_HELLO_B */
1070 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
1073 static int ssl3_send_server_key_exchange(SSL *s)
1075 #ifndef OPENSSL_NO_RSA
1079 unsigned char md_buf[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
1082 #ifndef OPENSSL_NO_DH
1085 #ifndef OPENSSL_NO_ECDH
1086 EC_KEY *ecdh=NULL, *ecdhp;
1087 unsigned char *encodedPoint = NULL;
1090 BN_CTX *bn_ctx = NULL;
1093 unsigned char *p,*d;
1103 EVP_MD_CTX_init(&md_ctx);
1104 if (s->state == SSL3_ST_SW_KEY_EXCH_A)
1106 type=s->s3->tmp.new_cipher->algorithms & SSL_MKEY_MASK;
1111 r[0]=r[1]=r[2]=r[3]=NULL;
1113 #ifndef OPENSSL_NO_RSA
1114 if (type & SSL_kRSA)
1117 if ((rsa == NULL) && (s->cert->rsa_tmp_cb != NULL))
1119 rsa=s->cert->rsa_tmp_cb(s,
1120 SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
1121 SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
1124 al=SSL_AD_HANDSHAKE_FAILURE;
1125 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ERROR_GENERATING_TMP_RSA_KEY);
1133 al=SSL_AD_HANDSHAKE_FAILURE;
1134 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_RSA_KEY);
1139 s->s3->tmp.use_rsa_tmp=1;
1143 #ifndef OPENSSL_NO_DH
1144 if (type & SSL_kEDH)
1147 if ((dhp == NULL) && (s->cert->dh_tmp_cb != NULL))
1148 dhp=s->cert->dh_tmp_cb(s,
1149 SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
1150 SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
1153 al=SSL_AD_HANDSHAKE_FAILURE;
1154 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_DH_KEY);
1158 if (s->s3->tmp.dh != NULL)
1161 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1165 if ((dh=DHparams_dup(dhp)) == NULL)
1167 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);
1172 if ((dhp->pub_key == NULL ||
1173 dhp->priv_key == NULL ||
1174 (s->options & SSL_OP_SINGLE_DH_USE)))
1176 if(!DH_generate_key(dh))
1178 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,
1185 dh->pub_key=BN_dup(dhp->pub_key);
1186 dh->priv_key=BN_dup(dhp->priv_key);
1187 if ((dh->pub_key == NULL) ||
1188 (dh->priv_key == NULL))
1190 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_DH_LIB);
1200 #ifndef OPENSSL_NO_ECDH
1201 if (type & SSL_kECDHE)
1203 ecdhp=cert->ecdh_tmp;
1204 if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL))
1206 ecdhp=s->cert->ecdh_tmp_cb(s,
1207 SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
1208 SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
1212 al=SSL_AD_HANDSHAKE_FAILURE;
1213 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
1217 if (s->s3->tmp.ecdh != NULL)
1219 EC_KEY_free(s->s3->tmp.ecdh);
1220 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
1224 /* Duplicate the ECDH structure. */
1227 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
1230 if (!EC_KEY_up_ref(ecdhp))
1232 SSLerr(SSL_F_SSL3_CTRL,ERR_R_ECDH_LIB);
1237 s->s3->tmp.ecdh=ecdh;
1238 if ((ecdh->pub_key == NULL) ||
1239 (ecdh->priv_key == NULL) ||
1240 (s->options & SSL_OP_SINGLE_ECDH_USE))
1242 if(!EC_KEY_generate_key(ecdh))
1244 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
1249 if ((ecdh->group == NULL) ||
1250 (ecdh->pub_key == NULL) ||
1251 (ecdh->priv_key == NULL))
1253 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
1257 if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
1258 (EC_GROUP_get_degree(ecdh->group) > 163))
1260 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
1264 /* XXX: For now, we only support ephemeral ECDH
1265 * keys over named (not generic) curves. For
1266 * supported named curves, curve_id is non-zero.
1269 nid2curve_id(EC_GROUP_get_nid(ecdh->group)))
1272 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);
1276 /* Encode the public key.
1277 * First check the size of encoding and
1278 * allocate memory accordingly.
1280 encodedlen = EC_POINT_point2oct(ecdh->group,
1282 POINT_CONVERSION_UNCOMPRESSED,
1285 encodedPoint = (unsigned char *)
1286 OPENSSL_malloc(encodedlen*sizeof(unsigned char));
1287 bn_ctx = BN_CTX_new();
1288 if ((encodedPoint == NULL) || (bn_ctx == NULL))
1290 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
1295 encodedlen = EC_POINT_point2oct(ecdh->group,
1297 POINT_CONVERSION_UNCOMPRESSED,
1298 encodedPoint, encodedlen, bn_ctx);
1300 if (encodedlen == 0)
1302 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
1306 BN_CTX_free(bn_ctx); bn_ctx=NULL;
1308 /* XXX: For now, we only support named (not
1309 * generic) curves in ECDH ephemeral key exchanges.
1310 * In this situation, we need three additional bytes
1311 * to encode the entire ServerECDHParams
1316 /* We'll generate the serverKeyExchange message
1317 * explicitly so we can set these to NULLs
1324 #endif /* !OPENSSL_NO_ECDH */
1326 al=SSL_AD_HANDSHAKE_FAILURE;
1327 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
1330 for (i=0; r[i] != NULL; i++)
1332 nr[i]=BN_num_bytes(r[i]);
1336 if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
1338 if ((pkey=ssl_get_sign_pkey(s,s->s3->tmp.new_cipher))
1341 al=SSL_AD_DECODE_ERROR;
1344 kn=EVP_PKEY_size(pkey);
1352 if (!BUF_MEM_grow_clean(buf,n+4+kn))
1354 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_BUF);
1357 d=(unsigned char *)s->init_buf->data;
1360 for (i=0; r[i] != NULL; i++)
1367 #ifndef OPENSSL_NO_ECDH
1368 if (type & SSL_kECDHE)
1370 /* XXX: For now, we only support named (not generic) curves.
1371 * In this situation, the serverKeyExchange message has:
1372 * [1 byte CurveType], [1 byte CurveName]
1373 * [1 byte length of encoded point], followed by
1374 * the actual encoded point itself
1376 *p = NAMED_CURVE_TYPE;
1382 memcpy((unsigned char*)p,
1383 (unsigned char *)encodedPoint,
1385 OPENSSL_free(encodedPoint);
1393 /* n is the length of the params, they start at &(d[4])
1394 * and p points to the space at the end. */
1395 #ifndef OPENSSL_NO_RSA
1396 if (pkey->type == EVP_PKEY_RSA)
1400 for (num=2; num > 0; num--)
1402 EVP_DigestInit_ex(&md_ctx,(num == 2)
1403 ?s->ctx->md5:s->ctx->sha1, NULL);
1404 EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1405 EVP_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1406 EVP_DigestUpdate(&md_ctx,&(d[4]),n);
1407 EVP_DigestFinal_ex(&md_ctx,q,
1408 (unsigned int *)&i);
1412 if (RSA_sign(NID_md5_sha1, md_buf, j,
1413 &(p[2]), &u, pkey->pkey.rsa) <= 0)
1415 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_RSA);
1423 #if !defined(OPENSSL_NO_DSA)
1424 if (pkey->type == EVP_PKEY_DSA)
1427 EVP_SignInit_ex(&md_ctx,EVP_dss1(), NULL);
1428 EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1429 EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1430 EVP_SignUpdate(&md_ctx,&(d[4]),n);
1431 if (!EVP_SignFinal(&md_ctx,&(p[2]),
1432 (unsigned int *)&i,pkey))
1434 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_DSA);
1442 #if !defined(OPENSSL_NO_ECDSA)
1443 if (pkey->type == EVP_PKEY_EC)
1445 /* let's do ECDSA */
1446 EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL);
1447 EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
1448 EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
1449 EVP_SignUpdate(&md_ctx,&(d[4]),n);
1450 if (!EVP_SignFinal(&md_ctx,&(p[2]),
1451 (unsigned int *)&i,pkey))
1453 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_ECDSA);
1462 /* Is this error check actually needed? */
1463 al=SSL_AD_HANDSHAKE_FAILURE;
1464 SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_PKEY_TYPE);
1469 *(d++)=SSL3_MT_SERVER_KEY_EXCHANGE;
1472 /* we should now have things packed up, so lets send
1478 s->state = SSL3_ST_SW_KEY_EXCH_B;
1479 EVP_MD_CTX_cleanup(&md_ctx);
1480 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
1482 ssl3_send_alert(s,SSL3_AL_FATAL,al);
1484 #ifndef OPENSSL_NO_ECDH
1485 if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
1486 BN_CTX_free(bn_ctx);
1488 EVP_MD_CTX_cleanup(&md_ctx);
1492 static int ssl3_send_certificate_request(SSL *s)
1494 unsigned char *p,*d;
1496 STACK_OF(X509_NAME) *sk=NULL;
1500 if (s->state == SSL3_ST_SW_CERT_REQ_A)
1504 d=p=(unsigned char *)&(buf->data[4]);
1506 /* get the list of acceptable cert types */
1508 n=ssl3_get_req_cert_type(s,p);
1517 sk=SSL_get_client_CA_list(s);
1521 for (i=0; i<sk_X509_NAME_num(sk); i++)
1523 name=sk_X509_NAME_value(sk,i);
1524 j=i2d_X509_NAME(name,NULL);
1525 if (!BUF_MEM_grow_clean(buf,4+n+j+2))
1527 SSLerr(SSL_F_SSL3_SEND_CERTIFICATE_REQUEST,ERR_R_BUF_LIB);
1530 p=(unsigned char *)&(buf->data[4+n]);
1531 if (!(s->options & SSL_OP_NETSCAPE_CA_DN_BUG))
1534 i2d_X509_NAME(name,&p);
1541 i2d_X509_NAME(name,&p);
1542 j-=2; s2n(j,d); j+=2;
1548 /* else no CA names */
1549 p=(unsigned char *)&(buf->data[4+off]);
1552 d=(unsigned char *)buf->data;
1553 *(d++)=SSL3_MT_CERTIFICATE_REQUEST;
1556 /* we should now have things packed up, so lets send
1561 #ifdef NETSCAPE_HANG_BUG
1562 p=(unsigned char *)s->init_buf->data + s->init_num;
1565 *(p++)=SSL3_MT_SERVER_DONE;
1574 /* SSL3_ST_SW_CERT_REQ_B */
1575 return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
1581 static const int KDF1_SHA1_len = 20;
1582 static void *KDF1_SHA1(void *in, size_t inlen, void *out, size_t outlen)
1584 #ifndef OPENSSL_NO_SHA
1585 if (outlen != SHA_DIGEST_LENGTH)
1587 return SHA1(in, inlen, out);
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,
1733 OPENSSL_cleanse(p,i);
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);
1796 OPENSSL_cleanse(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, sizeof iv); /* 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, KDF1_SHA1_len, clnt_ecpoint, srvr_ecdh, KDF1_SHA1);
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);
2085 OPENSSL_cleanse(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 OPENSSL_NO_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) */