* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
+/* ====================================================================
+ * Copyright (c) 1998-2003 The OpenSSL Project. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * 2. Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in
+ * the documentation and/or other materials provided with the
+ * distribution.
+ *
+ * 3. All advertising materials mentioning features or use of this
+ * software must display the following acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit. (http://www.openssl.org/)"
+ *
+ * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
+ * endorse or promote products derived from this software without
+ * prior written permission. For written permission, please contact
+ * openssl-core@openssl.org.
+ *
+ * 5. Products derived from this software may not be called "OpenSSL"
+ * nor may "OpenSSL" appear in their names without prior written
+ * permission of the OpenSSL Project.
+ *
+ * 6. Redistributions of any form whatsoever must retain the following
+ * acknowledgment:
+ * "This product includes software developed by the OpenSSL Project
+ * for use in the OpenSSL Toolkit (http://www.openssl.org/)"
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
+ * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
+ * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+ * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
+ * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+ * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
+ * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ * ====================================================================
+ *
+ * This product includes cryptographic software written by Eric Young
+ * (eay@cryptsoft.com). This product includes software written by Tim
+ * Hudson (tjh@cryptsoft.com).
+ *
+ */
+/* ====================================================================
+ * Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
+ *
+ * Portions of the attached software ("Contribution") are developed by
+ * SUN MICROSYSTEMS, INC., and are contributed to the OpenSSL project.
+ *
+ * The Contribution is licensed pursuant to the OpenSSL open source
+ * license provided above.
+ *
+ * ECC cipher suite support in OpenSSL originally written by
+ * Vipul Gupta and Sumit Gupta of Sun Microsystems Laboratories.
+ *
+ */
#include <stdio.h>
+#include "ssl_locl.h"
+#include "kssl_lcl.h"
#include <openssl/buffer.h>
#include <openssl/rand.h>
#include <openssl/objects.h>
#include <openssl/evp.h>
-#include "ssl_locl.h"
-#include "kssl_lcl.h"
#include <openssl/md5.h>
+#ifdef OPENSSL_FIPS
+#include <openssl/fips.h>
+#endif
+
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+#include <openssl/bn.h>
+#ifndef OPENSSL_NO_ENGINE
+#include <openssl/engine.h>
+#endif
static SSL_METHOD *ssl3_get_client_method(int ver);
-static int ssl3_client_hello(SSL *s);
-static int ssl3_get_server_hello(SSL *s);
-static int ssl3_get_certificate_request(SSL *s);
static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
-static int ssl3_get_server_done(SSL *s);
-static int ssl3_send_client_verify(SSL *s);
-static int ssl3_send_client_certificate(SSL *s);
-static int ssl3_send_client_key_exchange(SSL *s);
-static int ssl3_get_key_exchange(SSL *s);
-static int ssl3_get_server_certificate(SSL *s);
-static int ssl3_check_cert_and_algorithm(SSL *s);
+
+#ifndef OPENSSL_NO_ECDH
+static int curve_id2nid(int curve_id);
+int check_srvr_ecc_cert_and_alg(X509 *x, SSL_CIPHER *cs);
+#endif
+
static SSL_METHOD *ssl3_get_client_method(int ver)
{
if (ver == SSL3_VERSION)
return(NULL);
}
-SSL_METHOD *SSLv3_client_method(void)
- {
- static int init=1;
- static SSL_METHOD SSLv3_client_data;
-
- if (init)
- {
- init=0;
- memcpy((char *)&SSLv3_client_data,(char *)sslv3_base_method(),
- sizeof(SSL_METHOD));
- SSLv3_client_data.ssl_connect=ssl3_connect;
- SSLv3_client_data.get_ssl_method=ssl3_get_client_method;
- }
- return(&SSLv3_client_data);
- }
+IMPLEMENT_ssl3_meth_func(SSLv3_client_method,
+ ssl_undefined_function,
+ ssl3_connect,
+ ssl3_get_client_method)
int ssl3_connect(SSL *s)
{
- BUF_MEM *buf;
- unsigned long Time=time(NULL),l;
- long num1;
- void (*cb)()=NULL;
+ BUF_MEM *buf=NULL;
+ unsigned long Time=(unsigned long)time(NULL);
+ void (*cb)(const SSL *ssl,int type,int val)=NULL;
int ret= -1;
- int new_state,state,skip=0;;
+ int new_state,state,skip=0;
RAND_add(&Time,sizeof(Time),0);
ERR_clear_error();
else if (s->ctx->info_callback != NULL)
cb=s->ctx->info_callback;
- if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
s->in_handshake++;
+ if (!SSL_in_init(s) || SSL_in_before(s)) SSL_clear(s);
for (;;)
{
goto end;
}
s->init_buf=buf;
+ buf=NULL;
}
if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
ret=ssl3_get_server_hello(s);
if (ret <= 0) goto end;
if (s->hit)
+ {
s->state=SSL3_ST_CR_FINISHED_A;
+#ifndef OPENSSL_NO_TLSEXT
+ if (s->tlsext_ticket_expected)
+ {
+ /* receive renewed session ticket */
+ s->state=SSL3_ST_CR_SESSION_TICKET_A;
+ }
+#endif
+ }
else
s->state=SSL3_ST_CR_CERT_A;
s->init_num=0;
case SSL3_ST_CR_CERT_A:
case SSL3_ST_CR_CERT_B:
- /* Check if it is anon DH */
+#ifndef OPENSSL_NO_TLSEXT
+ ret=ssl3_check_finished(s);
+ if (ret <= 0) goto end;
+ if (ret == 2)
+ {
+ s->hit = 1;
+ if (s->tlsext_ticket_expected)
+ s->state=SSL3_ST_CR_SESSION_TICKET_A;
+ else
+ s->state=SSL3_ST_CR_FINISHED_A;
+ s->init_num=0;
+ break;
+ }
+#endif
+ /* Check if it is anon DH/ECDH */
if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
{
ret=ssl3_get_server_certificate(s);
if (ret <= 0) goto end;
+#ifndef OPENSSL_NO_TLSEXT
+ if (s->tlsext_status_expected)
+ s->state=SSL3_ST_CR_CERT_STATUS_A;
+ else
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ }
+ else
+ {
+ skip = 1;
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ }
+#else
}
else
skip=1;
+
s->state=SSL3_ST_CR_KEY_EXCH_A;
+#endif
s->init_num=0;
break;
case SSL3_ST_CW_KEY_EXCH_B:
ret=ssl3_send_client_key_exchange(s);
if (ret <= 0) goto end;
- l=s->s3->tmp.new_cipher->algorithms;
/* EAY EAY EAY need to check for DH fix cert
* sent back */
/* For TLS, cert_req is set to 2, so a cert chain
* of nothing is sent, but no verify packet is sent */
+ /* XXX: For now, we do not support client
+ * authentication in ECDH cipher suites with
+ * ECDH (rather than ECDSA) certificates.
+ * We need to skip the certificate verify
+ * message when client's ECDH public key is sent
+ * inside the client certificate.
+ */
if (s->s3->tmp.cert_req == 1)
{
s->state=SSL3_ST_CW_CERT_VRFY_A;
s->init_num=0;
s->session->cipher=s->s3->tmp.new_cipher;
+#ifdef OPENSSL_NO_COMP
+ s->session->compress_meth=0;
+#else
if (s->s3->tmp.new_compression == NULL)
s->session->compress_meth=0;
else
s->session->compress_meth=
s->s3->tmp.new_compression->id;
+#endif
if (!s->method->ssl3_enc->setup_key_block(s))
{
ret= -1;
}
else
{
+#ifndef OPENSSL_NO_TLSEXT
+ /* Allow NewSessionTicket if ticket expected */
+ if (s->tlsext_ticket_expected)
+ s->s3->tmp.next_state=SSL3_ST_CR_SESSION_TICKET_A;
+ else
+#endif
+
s->s3->tmp.next_state=SSL3_ST_CR_FINISHED_A;
}
s->init_num=0;
break;
+#ifndef OPENSSL_NO_TLSEXT
+ case SSL3_ST_CR_SESSION_TICKET_A:
+ case SSL3_ST_CR_SESSION_TICKET_B:
+ ret=ssl3_get_new_session_ticket(s);
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_CR_FINISHED_A;
+ s->init_num=0;
+ break;
+
+ case SSL3_ST_CR_CERT_STATUS_A:
+ case SSL3_ST_CR_CERT_STATUS_B:
+ ret=ssl3_get_cert_status(s);
+ if (ret <= 0) goto end;
+ s->state=SSL3_ST_CR_KEY_EXCH_A;
+ s->init_num=0;
+ break;
+#endif
+
case SSL3_ST_CR_FINISHED_A:
case SSL3_ST_CR_FINISHED_B:
+ s->s3->flags |= SSL3_FLAGS_CCS_OK;
ret=ssl3_get_finished(s,SSL3_ST_CR_FINISHED_A,
SSL3_ST_CR_FINISHED_B);
if (ret <= 0) goto end;
break;
case SSL3_ST_CW_FLUSH:
- /* number of bytes to be flushed */
- num1=BIO_ctrl(s->wbio,BIO_CTRL_INFO,0,NULL);
- if (num1 > 0)
+ s->rwstate=SSL_WRITING;
+ if (BIO_flush(s->wbio) <= 0)
{
- s->rwstate=SSL_WRITING;
- num1=BIO_flush(s->wbio);
- if (num1 <= 0) { ret= -1; goto end; }
- s->rwstate=SSL_NOTHING;
+ ret= -1;
+ goto end;
}
-
+ s->rwstate=SSL_NOTHING;
s->state=s->s3->tmp.next_state;
break;
skip=0;
}
end:
+ s->in_handshake--;
+ if (buf != NULL)
+ BUF_MEM_free(buf);
if (cb != NULL)
cb(s,SSL_CB_CONNECT_EXIT,ret);
- s->in_handshake--;
return(ret);
}
-static int ssl3_client_hello(SSL *s)
+int ssl3_client_hello(SSL *s)
{
unsigned char *buf;
unsigned char *p,*d;
- int i,j;
+ int i;
unsigned long Time,l;
+#ifndef OPENSSL_NO_COMP
+ int j;
SSL_COMP *comp;
+#endif
buf=(unsigned char *)s->init_buf->data;
if (s->state == SSL3_ST_CW_CLNT_HELLO_A)
{
- if ((s->session == NULL) ||
- (s->session->ssl_version != s->version) ||
- (s->session->not_resumable))
+ SSL_SESSION *sess = s->session;
+ if ((sess == NULL) ||
+ (sess->ssl_version != s->version) ||
+#ifdef OPENSSL_NO_TLSEXT
+ !sess->session_id_length ||
+#else
+ (!sess->session_id_length && !sess->tlsext_tick) ||
+#endif
+ (sess->not_resumable))
{
if (!ssl_get_new_session(s,0))
goto err;
/* else use the pre-loaded session */
p=s->s3->client_random;
- Time=time(NULL); /* Time */
+ Time=(unsigned long)time(NULL); /* Time */
l2n(Time,p);
- RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time));
+ if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
+ goto err;
/* Do the message type and length last */
d=p= &(buf[4]);
*(p++)=i;
if (i != 0)
{
+ if (i > (int)sizeof(s->session->session_id))
+ {
+ SSLerr(SSL_F_SSL3_CLIENT_HELLO, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
memcpy(p,s->session->session_id,i);
p+=i;
}
/* Ciphers supported */
- i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]));
+ i=ssl_cipher_list_to_bytes(s,SSL_get_ciphers(s),&(p[2]),0);
if (i == 0)
{
SSLerr(SSL_F_SSL3_CLIENT_HELLO,SSL_R_NO_CIPHERS_AVAILABLE);
p+=i;
/* COMPRESSION */
+#ifdef OPENSSL_NO_COMP
+ *(p++)=1;
+#else
if (s->ctx->comp_methods == NULL)
j=0;
else
comp=sk_SSL_COMP_value(s->ctx->comp_methods,i);
*(p++)=comp->id;
}
+#endif
*(p++)=0; /* Add the NULL method */
-
+#ifndef OPENSSL_NO_TLSEXT
+ if ((p = ssl_add_clienthello_tlsext(s, p, buf+SSL3_RT_MAX_PLAIN_LENGTH)) == NULL)
+ {
+ SSLerr(SSL_F_SSL3_CLIENT_HELLO,ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+#endif
l=(p-d);
d=buf;
*(d++)=SSL3_MT_CLIENT_HELLO;
return(-1);
}
-static int ssl3_get_server_hello(SSL *s)
+int ssl3_get_server_hello(SSL *s)
{
STACK_OF(SSL_CIPHER) *sk;
SSL_CIPHER *c;
int i,al,ok;
unsigned int j;
long n;
+#ifndef OPENSSL_NO_COMP
SSL_COMP *comp;
+#endif
- n=ssl3_get_message(s,
+ n=s->method->ssl_get_message(s,
SSL3_ST_CR_SRVR_HELLO_A,
SSL3_ST_CR_SRVR_HELLO_B,
- SSL3_MT_SERVER_HELLO,
- 300, /* ?? */
+ -1,
+ 20000, /* ?? */
&ok);
if (!ok) return((int)n);
+
+ if ( SSL_version(s) == DTLS1_VERSION || SSL_version(s) == DTLS1_BAD_VER)
+ {
+ if ( s->s3->tmp.message_type == DTLS1_MT_HELLO_VERIFY_REQUEST)
+ {
+ if ( s->d1->send_cookie == 0)
+ {
+ s->s3->tmp.reuse_message = 1;
+ return 1;
+ }
+ else /* already sent a cookie */
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
+ goto f_err;
+ }
+ }
+ }
+
+ if ( s->s3->tmp.message_type != SSL3_MT_SERVER_HELLO)
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_MESSAGE_TYPE);
+ goto f_err;
+ }
+
d=p=(unsigned char *)s->init_msg;
if ((p[0] != (s->version>>8)) || (p[1] != (s->version&0xff)))
/* get the session-id */
j= *(p++);
- if ((j != 0) && (j != SSL3_SESSION_ID_SIZE))
+ if ((j > sizeof s->session->session_id) || (j > SSL3_SESSION_ID_SIZE))
{
- /* SSLref returns 16 :-( */
- if (j < SSL2_SSL_SESSION_ID_LENGTH)
- {
- al=SSL_AD_ILLEGAL_PARAMETER;
- SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_SHORT);
- goto f_err;
- }
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SSL3_SESSION_ID_TOO_LONG);
+ goto f_err;
}
+
if (j != 0 && j == s->session->session_id_length
&& memcmp(p,s->session->session_id,j) == 0)
{
if(s->sid_ctx_length != s->session->sid_ctx_length
|| memcmp(s->session->sid_ctx,s->sid_ctx,s->sid_ctx_length))
{
+ /* actually a client application bug */
al=SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_ATTEMPT_TO_REUSE_SESSION_IN_DIFFERENT_CONTEXT);
goto f_err;
}
+ s->s3->flags |= SSL3_FLAGS_CCS_OK;
s->hit=1;
}
else /* a miss or crap from the other end */
goto f_err;
}
- if (s->hit && (s->session->cipher != c))
+ /* Depending on the session caching (internal/external), the cipher
+ and/or cipher_id values may not be set. Make sure that
+ cipher_id is set and use it for comparison. */
+ if (s->session->cipher)
+ s->session->cipher_id = s->session->cipher->id;
+ if (s->hit && (s->session->cipher_id != c->id))
{
+/* Workaround is now obsolete */
+#if 0
if (!(s->options &
SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
+#endif
{
al=SSL_AD_ILLEGAL_PARAMETER;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_OLD_SESSION_CIPHER_NOT_RETURNED);
/* lets get the compression algorithm */
/* COMPRESSION */
+#ifdef OPENSSL_NO_COMP
+ if (*(p++) != 0)
+ {
+ al=SSL_AD_ILLEGAL_PARAMETER;
+ SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_UNSUPPORTED_COMPRESSION_ALGORITHM);
+ goto f_err;
+ }
+#else
j= *(p++);
if (j == 0)
comp=NULL;
{
s->s3->tmp.new_compression=comp;
}
+#endif
+#ifndef OPENSSL_NO_TLSEXT
+ /* TLS extensions*/
+ if (s->version >= SSL3_VERSION)
+ {
+ if (!ssl_parse_serverhello_tlsext(s,&p,d,n, &al))
+ {
+ /* 'al' set by ssl_parse_serverhello_tlsext */
+ SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_PARSE_TLSEXT);
+ goto f_err;
+ }
+ if (ssl_check_serverhello_tlsext(s) <= 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_SERVERHELLO_TLSEXT);
+ goto err;
+ }
+ }
+#endif
+
if (p != (d+n))
{
/* wrong packet length */
al=SSL_AD_DECODE_ERROR;
SSLerr(SSL_F_SSL3_GET_SERVER_HELLO,SSL_R_BAD_PACKET_LENGTH);
- goto err;
+ goto f_err;
}
return(1);
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
+#ifndef OPENSSL_NO_TLSEXT
err:
+#endif
return(-1);
}
-static int ssl3_get_server_certificate(SSL *s)
+int ssl3_get_server_certificate(SSL *s)
{
int al,i,ok,ret= -1;
unsigned long n,nc,llen,l;
X509 *x=NULL;
- unsigned char *p,*d,*q;
+ const unsigned char *q,*p;
+ unsigned char *d;
STACK_OF(X509) *sk=NULL;
SESS_CERT *sc;
EVP_PKEY *pkey=NULL;
- int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
+ int need_cert = 1; /* VRS: 0=> will allow null cert if auth == KRB5 */
- n=ssl3_get_message(s,
+ n=s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_A,
SSL3_ST_CR_CERT_B,
-1,
if (!ok) return((int)n);
- if (s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE)
+ if ((s->s3->tmp.message_type == SSL3_MT_SERVER_KEY_EXCHANGE) ||
+ ((s->s3->tmp.new_cipher->algorithms & SSL_aKRB5) &&
+ (s->s3->tmp.message_type == SSL3_MT_SERVER_DONE)))
{
s->s3->tmp.reuse_message=1;
return(1);
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
- d=p=(unsigned char *)s->init_msg;
+ p=d=(unsigned char *)s->init_msg;
if ((sk=sk_X509_new_null()) == NULL)
{
}
i=ssl_verify_cert_chain(s,sk);
- if ((s->verify_mode != SSL_VERIFY_NONE) && (!i)
+ if ((s->verify_mode != SSL_VERIFY_NONE) && (i <= 0)
#ifndef OPENSSL_NO_KRB5
- && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
- != (SSL_aKRB5|SSL_kKRB5)
+ && (s->s3->tmp.new_cipher->algorithms & (SSL_MKEY_MASK|SSL_AUTH_MASK))
+ != (SSL_aKRB5|SSL_kKRB5)
#endif /* OPENSSL_NO_KRB5 */
- )
+ )
{
al=ssl_verify_alarm_type(s->verify_result);
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_CERTIFICATE_VERIFY_FAILED);
pkey=X509_get_pubkey(x);
- /* VRS: allow null cert if auth == KRB5 */
- need_cert = ((s->s3->tmp.new_cipher->algorithms
- & (SSL_MKEY_MASK|SSL_AUTH_MASK))
- == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
+ /* VRS: allow null cert if auth == KRB5 */
+ need_cert = ((s->s3->tmp.new_cipher->algorithms
+ & (SSL_MKEY_MASK|SSL_AUTH_MASK))
+ == (SSL_aKRB5|SSL_kKRB5))? 0: 1;
#ifdef KSSL_DEBUG
- printf("pkey,x = %p, %p\n", pkey,x);
+ printf("pkey,x = %p, %p\n", (void *)pkey,(void *)x);
printf("ssl_cert_type(x,pkey) = %d\n", ssl_cert_type(x,pkey));
printf("cipher, alg, nc = %s, %lx, %d\n", s->s3->tmp.new_cipher->name,
- s->s3->tmp.new_cipher->algorithms, need_cert);
+ s->s3->tmp.new_cipher->algorithms, need_cert);
#endif /* KSSL_DEBUG */
if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
goto f_err;
}
- if (need_cert)
- {
- sc->peer_cert_type=i;
- CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
- /* Why would the following ever happen?
- * We just created sc a couple of lines ago. */
- if (sc->peer_pkeys[i].x509 != NULL)
- X509_free(sc->peer_pkeys[i].x509);
- sc->peer_pkeys[i].x509=x;
- sc->peer_key= &(sc->peer_pkeys[i]);
-
- if (s->session->peer != NULL)
- X509_free(s->session->peer);
- CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
- s->session->peer=x;
- }
- else
- {
- sc->peer_cert_type=i;
- sc->peer_key= NULL;
-
- if (s->session->peer != NULL)
- X509_free(s->session->peer);
- s->session->peer=NULL;
- }
+ if (need_cert)
+ {
+ sc->peer_cert_type=i;
+ CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
+ /* Why would the following ever happen?
+ * We just created sc a couple of lines ago. */
+ if (sc->peer_pkeys[i].x509 != NULL)
+ X509_free(sc->peer_pkeys[i].x509);
+ sc->peer_pkeys[i].x509=x;
+ sc->peer_key= &(sc->peer_pkeys[i]);
+
+ if (s->session->peer != NULL)
+ X509_free(s->session->peer);
+ CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
+ s->session->peer=x;
+ }
+ else
+ {
+ sc->peer_cert_type=i;
+ sc->peer_key= NULL;
+
+ if (s->session->peer != NULL)
+ X509_free(s->session->peer);
+ s->session->peer=NULL;
+ }
s->session->verify_result = s->verify_result;
x=NULL;
return(ret);
}
-static int ssl3_get_key_exchange(SSL *s)
+int ssl3_get_key_exchange(SSL *s)
{
#ifndef OPENSSL_NO_RSA
unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
#ifndef OPENSSL_NO_DH
DH *dh=NULL;
#endif
+#ifndef OPENSSL_NO_ECDH
+ EC_KEY *ecdh = NULL;
+ BN_CTX *bn_ctx = NULL;
+ EC_POINT *srvr_ecpoint = NULL;
+ int curve_nid = 0;
+ int encoded_pt_len = 0;
+#endif
/* use same message size as in ssl3_get_certificate_request()
* as ServerKeyExchange message may be skipped */
- n=ssl3_get_message(s,
+ n=s->method->ssl_get_message(s,
SSL3_ST_CR_KEY_EXCH_A,
SSL3_ST_CR_KEY_EXCH_B,
-1,
DH_free(s->session->sess_cert->peer_dh_tmp);
s->session->sess_cert->peer_dh_tmp=NULL;
}
+#endif
+#ifndef OPENSSL_NO_ECDH
+ if (s->session->sess_cert->peer_ecdh_tmp)
+ {
+ EC_KEY_free(s->session->sess_cert->peer_ecdh_tmp);
+ s->session->sess_cert->peer_ecdh_tmp=NULL;
+ }
#endif
}
else
goto f_err;
}
#endif /* !OPENSSL_NO_DH */
+
+#ifndef OPENSSL_NO_ECDH
+ else if (alg & SSL_kECDHE)
+ {
+ EC_GROUP *ngroup;
+ const EC_GROUP *group;
+
+ if ((ecdh=EC_KEY_new()) == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ /* Extract elliptic curve parameters and the
+ * server's ephemeral ECDH public key.
+ * Keep accumulating lengths of various components in
+ * param_len and make sure it never exceeds n.
+ */
+
+ /* XXX: For now we only support named (not generic) curves
+ * and the ECParameters in this case is just three bytes.
+ */
+ param_len=3;
+ if ((param_len > n) ||
+ (*p != NAMED_CURVE_TYPE) ||
+ ((curve_nid = curve_id2nid(*(p + 2))) == 0))
+ {
+ al=SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
+ goto f_err;
+ }
+
+ ngroup = EC_GROUP_new_by_curve_name(curve_nid);
+ if (ngroup == NULL)
+ {
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
+ goto err;
+ }
+ if (EC_KEY_set_group(ecdh, ngroup) == 0)
+ {
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
+ goto err;
+ }
+ EC_GROUP_free(ngroup);
+
+ group = EC_KEY_get0_group(ecdh);
+
+ if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
+ (EC_GROUP_get_degree(group) > 163))
+ {
+ al=SSL_AD_EXPORT_RESTRICTION;
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
+ goto f_err;
+ }
+
+ p+=3;
+
+ /* Next, get the encoded ECPoint */
+ if (((srvr_ecpoint = EC_POINT_new(group)) == NULL) ||
+ ((bn_ctx = BN_CTX_new()) == NULL))
+ {
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ encoded_pt_len = *p; /* length of encoded point */
+ p+=1;
+ param_len += (1 + encoded_pt_len);
+ if ((param_len > n) ||
+ (EC_POINT_oct2point(group, srvr_ecpoint,
+ p, encoded_pt_len, bn_ctx) == 0))
+ {
+ al=SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_ECPOINT);
+ goto f_err;
+ }
+
+ n-=param_len;
+ p+=encoded_pt_len;
+
+ /* The ECC/TLS specification does not mention
+ * the use of DSA to sign ECParameters in the server
+ * key exchange message. We do support RSA and ECDSA.
+ */
+ if (0) ;
+#ifndef OPENSSL_NO_RSA
+ else if (alg & SSL_aRSA)
+ pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
+#endif
+#ifndef OPENSSL_NO_ECDSA
+ else if (alg & SSL_aECDSA)
+ pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
+#endif
+ /* else anonymous ECDH, so no certificate or pkey. */
+ EC_KEY_set_public_key(ecdh, srvr_ecpoint);
+ s->session->sess_cert->peer_ecdh_tmp=ecdh;
+ ecdh=NULL;
+ BN_CTX_free(bn_ctx);
+ bn_ctx = NULL;
+ EC_POINT_free(srvr_ecpoint);
+ srvr_ecpoint = NULL;
+ }
+ else if (alg & SSL_kECDH)
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
+ goto f_err;
+ }
+#endif /* !OPENSSL_NO_ECDH */
if (alg & SSL_aFZA)
{
al=SSL_AD_HANDSHAKE_FAILURE;
/* p points to the next byte, there are 'n' bytes left */
-
/* if it was signed, check the signature */
if (pkey != NULL)
{
q=md_buf;
for (num=2; num > 0; num--)
{
+ EVP_MD_CTX_set_flags(&md_ctx,
+ EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
EVP_DigestInit_ex(&md_ctx,(num == 2)
?s->ctx->md5:s->ctx->sha1, NULL);
EVP_DigestUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
EVP_VerifyUpdate(&md_ctx,param,param_len);
- if (!EVP_VerifyFinal(&md_ctx,p,(int)n,pkey))
+ if (EVP_VerifyFinal(&md_ctx,p,(int)n,pkey) <= 0)
+ {
+ /* bad signature */
+ al=SSL_AD_DECRYPT_ERROR;
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_SIGNATURE);
+ goto f_err;
+ }
+ }
+ else
+#endif
+#ifndef OPENSSL_NO_ECDSA
+ if (pkey->type == EVP_PKEY_EC)
+ {
+ /* let's do ECDSA */
+ EVP_VerifyInit_ex(&md_ctx,EVP_ecdsa(), NULL);
+ EVP_VerifyUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
+ EVP_VerifyUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
+ EVP_VerifyUpdate(&md_ctx,param,param_len);
+ if (EVP_VerifyFinal(&md_ctx,p,(int)n,pkey) <= 0)
{
/* bad signature */
al=SSL_AD_DECRYPT_ERROR;
#ifndef OPENSSL_NO_DH
if (dh != NULL)
DH_free(dh);
+#endif
+#ifndef OPENSSL_NO_ECDH
+ BN_CTX_free(bn_ctx);
+ EC_POINT_free(srvr_ecpoint);
+ if (ecdh != NULL)
+ EC_KEY_free(ecdh);
#endif
EVP_MD_CTX_cleanup(&md_ctx);
return(-1);
}
-static int ssl3_get_certificate_request(SSL *s)
+int ssl3_get_certificate_request(SSL *s)
{
int ok,ret=0;
unsigned long n,nc,l;
unsigned int llen,ctype_num,i;
X509_NAME *xn=NULL;
- unsigned char *p,*d,*q;
+ const unsigned char *p,*q;
+ unsigned char *d;
STACK_OF(X509_NAME) *ca_sk=NULL;
- n=ssl3_get_message(s,
+ n=s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_REQ_A,
SSL3_ST_CR_CERT_REQ_B,
-1,
}
}
- d=p=(unsigned char *)s->init_msg;
+ p=d=(unsigned char *)s->init_msg;
if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
{
{
return(X509_NAME_cmp(*a,*b));
}
+#ifndef OPENSSL_NO_TLSEXT
+int ssl3_get_new_session_ticket(SSL *s)
+ {
+ int ok,al,ret=0, ticklen;
+ long n;
+ const unsigned char *p;
+ unsigned char *d;
+
+ n=s->method->ssl_get_message(s,
+ SSL3_ST_CR_SESSION_TICKET_A,
+ SSL3_ST_CR_SESSION_TICKET_B,
+ -1,
+ 16384,
+ &ok);
+
+ if (!ok)
+ return((int)n);
+
+ if (s->s3->tmp.message_type == SSL3_MT_FINISHED)
+ {
+ s->s3->tmp.reuse_message=1;
+ return(1);
+ }
+ if (s->s3->tmp.message_type != SSL3_MT_NEWSESSION_TICKET)
+ {
+ al=SSL_AD_UNEXPECTED_MESSAGE;
+ SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET,SSL_R_BAD_MESSAGE_TYPE);
+ goto f_err;
+ }
+ if (n < 6)
+ {
+ /* need at least ticket_lifetime_hint + ticket length */
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET,SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+
+ p=d=(unsigned char *)s->init_msg;
+ n2l(p, s->session->tlsext_tick_lifetime_hint);
+ n2s(p, ticklen);
+ /* ticket_lifetime_hint + ticket_length + ticket */
+ if (ticklen + 6 != n)
+ {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET,SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+ if (s->session->tlsext_tick)
+ {
+ OPENSSL_free(s->session->tlsext_tick);
+ s->session->tlsext_ticklen = 0;
+ }
+ s->session->tlsext_tick = OPENSSL_malloc(ticklen);
+ if (!s->session->tlsext_tick)
+ {
+ SSLerr(SSL_F_SSL3_GET_NEW_SESSION_TICKET,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ memcpy(s->session->tlsext_tick, p, ticklen);
+ s->session->tlsext_ticklen = ticklen;
+ /* There are two ways to detect a resumed ticket sesion.
+ * One is to set an appropriate session ID and then the server
+ * must return a match in ServerHello. This allows the normal
+ * client session ID matching to work and we know much
+ * earlier that the ticket has been accepted.
+ *
+ * The other way is to set zero length session ID when the
+ * ticket is presented and rely on the handshake to determine
+ * session resumption.
+ *
+ * We choose the former approach because this fits in with
+ * assumptions elsewhere in OpenSSL. The session ID is set
+ * to the SHA256 (or SHA1 is SHA256 is disabled) hash of the
+ * ticket.
+ */
+ EVP_Digest(p, ticklen,
+ s->session->session_id, &s->session->session_id_length,
+#ifndef OPENSSL_NO_SHA256
+ EVP_sha256(), NULL);
+#else
+ EVP_sha1(), NULL);
+#endif
+ ret=1;
+ return(ret);
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+err:
+ return(-1);
+ }
+
+int ssl3_get_cert_status(SSL *s)
+ {
+ int ok, al;
+ unsigned long resplen;
+ long n;
+ const unsigned char *p;
+
+ n=s->method->ssl_get_message(s,
+ SSL3_ST_CR_CERT_STATUS_A,
+ SSL3_ST_CR_CERT_STATUS_B,
+ SSL3_MT_CERTIFICATE_STATUS,
+ 16384,
+ &ok);
+
+ if (!ok) return((int)n);
+ if (n < 4)
+ {
+ /* need at least status type + length */
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+ p = (unsigned char *)s->init_msg;
+ if (*p++ != TLSEXT_STATUSTYPE_ocsp)
+ {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_UNSUPPORTED_STATUS_TYPE);
+ goto f_err;
+ }
+ n2l3(p, resplen);
+ if (resplen + 4 != (unsigned long)n)
+ {
+ al = SSL_AD_DECODE_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_LENGTH_MISMATCH);
+ goto f_err;
+ }
+ if (s->tlsext_ocsp_resp)
+ OPENSSL_free(s->tlsext_ocsp_resp);
+ s->tlsext_ocsp_resp = BUF_memdup(p, resplen);
+ if (!s->tlsext_ocsp_resp)
+ {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_STATUS,ERR_R_MALLOC_FAILURE);
+ goto f_err;
+ }
+ s->tlsext_ocsp_resplen = resplen;
+ if (s->ctx->tlsext_status_cb)
+ {
+ int ret;
+ ret = s->ctx->tlsext_status_cb(s, s->ctx->tlsext_status_arg);
+ if (ret == 0)
+ {
+ al = SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE;
+ SSLerr(SSL_F_SSL3_GET_CERT_STATUS,SSL_R_INVALID_STATUS_RESPONSE);
+ goto f_err;
+ }
+ if (ret < 0)
+ {
+ al = SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_CERT_STATUS,ERR_R_MALLOC_FAILURE);
+ goto f_err;
+ }
+ }
+ return 1;
+f_err:
+ ssl3_send_alert(s,SSL3_AL_FATAL,al);
+ return(-1);
+ }
+#endif
-static int ssl3_get_server_done(SSL *s)
+int ssl3_get_server_done(SSL *s)
{
int ok,ret=0;
long n;
- n=ssl3_get_message(s,
+ n=s->method->ssl_get_message(s,
SSL3_ST_CR_SRVR_DONE_A,
SSL3_ST_CR_SRVR_DONE_B,
SSL3_MT_SERVER_DONE,
/* should contain no data */
ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECODE_ERROR);
SSLerr(SSL_F_SSL3_GET_SERVER_DONE,SSL_R_LENGTH_MISMATCH);
+ return -1;
}
ret=1;
return(ret);
}
-static int ssl3_send_client_key_exchange(SSL *s)
+
+int ssl3_send_client_key_exchange(SSL *s)
{
unsigned char *p,*d;
int n;
EVP_PKEY *pkey=NULL;
#endif
#ifndef OPENSSL_NO_KRB5
- KSSL_ERR kssl_err;
+ KSSL_ERR kssl_err;
#endif /* OPENSSL_NO_KRB5 */
+#ifndef OPENSSL_NO_ECDH
+ EC_KEY *clnt_ecdh = NULL;
+ const EC_POINT *srvr_ecpoint = NULL;
+ EVP_PKEY *srvr_pub_pkey = NULL;
+ unsigned char *encodedPoint = NULL;
+ int encoded_pt_len = 0;
+ BN_CTX * bn_ctx = NULL;
+#endif
if (s->state == SSL3_ST_CW_KEY_EXCH_A)
{
l=s->s3->tmp.new_cipher->algorithms;
- /* Fool emacs indentation */
- if (0) {}
+ /* Fool emacs indentation */
+ if (0) {}
#ifndef OPENSSL_NO_RSA
else if (l & SSL_kRSA)
{
tmp_buf[0]=s->client_version>>8;
tmp_buf[1]=s->client_version&0xff;
- if (RAND_bytes(&(tmp_buf[2]),SSL_MAX_MASTER_KEY_LENGTH-2) <= 0)
+ if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
goto err;
- s->session->master_key_length=SSL_MAX_MASTER_KEY_LENGTH;
+ s->session->master_key_length=sizeof tmp_buf;
q=p;
/* Fix buf for TLS and beyond */
if (s->version > SSL3_VERSION)
p+=2;
- n=RSA_public_encrypt(SSL_MAX_MASTER_KEY_LENGTH,
+ n=RSA_public_encrypt(sizeof tmp_buf,
tmp_buf,p,rsa,RSA_PKCS1_PADDING);
#ifdef PKCS1_CHECK
if (s->options & SSL_OP_PKCS1_CHECK_1) p[1]++;
s->session->master_key_length=
s->method->ssl3_enc->generate_master_secret(s,
s->session->master_key,
- tmp_buf,SSL_MAX_MASTER_KEY_LENGTH);
- memset(tmp_buf,0,SSL_MAX_MASTER_KEY_LENGTH);
+ tmp_buf,sizeof tmp_buf);
+ OPENSSL_cleanse(tmp_buf,sizeof tmp_buf);
}
#endif
#ifndef OPENSSL_NO_KRB5
else if (l & SSL_kKRB5)
- {
- krb5_error_code krb5rc;
- KSSL_CTX *kssl_ctx = s->kssl_ctx;
- /* krb5_data krb5_ap_req; */
- krb5_data *enc_ticket;
- krb5_data authenticator, *authp = NULL;
+ {
+ krb5_error_code krb5rc;
+ KSSL_CTX *kssl_ctx = s->kssl_ctx;
+ /* krb5_data krb5_ap_req; */
+ krb5_data *enc_ticket;
+ krb5_data authenticator, *authp = NULL;
EVP_CIPHER_CTX ciph_ctx;
EVP_CIPHER *enc = NULL;
unsigned char iv[EVP_MAX_IV_LENGTH];
+ EVP_MAX_IV_LENGTH];
int padl, outl = sizeof(epms);
+ EVP_CIPHER_CTX_init(&ciph_ctx);
+
#ifdef KSSL_DEBUG
- printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
- l, SSL_kKRB5);
+ printf("ssl3_send_client_key_exchange(%lx & %lx)\n",
+ l, SSL_kKRB5);
#endif /* KSSL_DEBUG */
authp = NULL;
if (KRB5SENDAUTH) authp = &authenticator;
#endif /* KRB5SENDAUTH */
- krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
+ krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
&kssl_err);
enc = kssl_map_enc(kssl_ctx->enctype);
- if (enc == NULL)
- goto err;
+ if (enc == NULL)
+ goto err;
#ifdef KSSL_DEBUG
- {
- printf("kssl_cget_tkt rtn %d\n", krb5rc);
- if (krb5rc && kssl_err.text)
+ {
+ printf("kssl_cget_tkt rtn %d\n", krb5rc);
+ if (krb5rc && kssl_err.text)
printf("kssl_cget_tkt kssl_err=%s\n", kssl_err.text);
- }
+ }
#endif /* KSSL_DEBUG */
- if (krb5rc)
- {
- ssl3_send_alert(s,SSL3_AL_FATAL,
+ if (krb5rc)
+ {
+ ssl3_send_alert(s,SSL3_AL_FATAL,
SSL_AD_HANDSHAKE_FAILURE);
- SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
kssl_err.reason);
- goto err;
- }
+ goto err;
+ }
/* 20010406 VRS - Earlier versions used KRB5 AP_REQ
** in place of RFC 2712 KerberosWrapper, as in:
**
- ** Send ticket (copy to *p, set n = length)
- ** n = krb5_ap_req.length;
- ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
- ** if (krb5_ap_req.data)
- ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
- **
+ ** Send ticket (copy to *p, set n = length)
+ ** n = krb5_ap_req.length;
+ ** memcpy(p, krb5_ap_req.data, krb5_ap_req.length);
+ ** if (krb5_ap_req.data)
+ ** kssl_krb5_free_data_contents(NULL,&krb5_ap_req);
+ **
** Now using real RFC 2712 KerberosWrapper
** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
** Note: 2712 "opaque" types are here replaced
n+=2;
}
- if (RAND_bytes(tmp_buf,SSL_MAX_MASTER_KEY_LENGTH) <= 0)
- goto err;
+ tmp_buf[0]=s->client_version>>8;
+ tmp_buf[1]=s->client_version&0xff;
+ if (RAND_bytes(&(tmp_buf[2]),sizeof tmp_buf-2) <= 0)
+ goto err;
/* 20010420 VRS. Tried it this way; failed.
** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
** EVP_EncryptInit_ex(&ciph_ctx,NULL, key,iv);
*/
- memset(iv, 0, EVP_MAX_IV_LENGTH); /* per RFC 1510 */
- EVP_EncryptInit_ex(&ciph_ctx,enc, kssl_ctx->key,iv);
+ memset(iv, 0, sizeof iv); /* per RFC 1510 */
+ EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,
+ kssl_ctx->key,iv);
EVP_EncryptUpdate(&ciph_ctx,epms,&outl,tmp_buf,
- SSL_MAX_MASTER_KEY_LENGTH);
+ sizeof tmp_buf);
EVP_EncryptFinal_ex(&ciph_ctx,&(epms[outl]),&padl);
outl += padl;
+ if (outl > sizeof epms)
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
EVP_CIPHER_CTX_cleanup(&ciph_ctx);
/* KerberosWrapper.EncryptedPreMasterSecret */
p+=outl;
n+=outl + 2;
- s->session->master_key_length=
- s->method->ssl3_enc->generate_master_secret(s,
+ s->session->master_key_length=
+ s->method->ssl3_enc->generate_master_secret(s,
s->session->master_key,
- tmp_buf, SSL_MAX_MASTER_KEY_LENGTH);
+ tmp_buf, sizeof tmp_buf);
- memset(tmp_buf, 0, SSL_MAX_MASTER_KEY_LENGTH);
- memset(epms, 0, outl);
- }
+ OPENSSL_cleanse(tmp_buf, sizeof tmp_buf);
+ OPENSSL_cleanse(epms, outl);
+ }
#endif
#ifndef OPENSSL_NO_DH
else if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
{
DH *dh_srvr,*dh_clnt;
+ if (s->session->sess_cert == NULL)
+ {
+ ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_UNEXPECTED_MESSAGE);
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_UNEXPECTED_MESSAGE);
+ goto err;
+ }
+
if (s->session->sess_cert->peer_dh_tmp != NULL)
dh_srvr=s->session->sess_cert->peer_dh_tmp;
else
/* perhaps clean things up a bit EAY EAY EAY EAY*/
}
#endif
+
+#ifndef OPENSSL_NO_ECDH
+ else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
+ {
+ const EC_GROUP *srvr_group = NULL;
+ EC_KEY *tkey;
+ int ecdh_clnt_cert = 0;
+ int field_size = 0;
+
+ /* Did we send out the client's
+ * ECDH share for use in premaster
+ * computation as part of client certificate?
+ * If so, set ecdh_clnt_cert to 1.
+ */
+ if ((l & SSL_kECDH) && (s->cert != NULL))
+ {
+ /* XXX: For now, we do not support client
+ * authentication using ECDH certificates.
+ * To add such support, one needs to add
+ * code that checks for appropriate
+ * conditions and sets ecdh_clnt_cert to 1.
+ * For example, the cert have an ECC
+ * key on the same curve as the server's
+ * and the key should be authorized for
+ * key agreement.
+ *
+ * One also needs to add code in ssl3_connect
+ * to skip sending the certificate verify
+ * message.
+ *
+ * if ((s->cert->key->privatekey != NULL) &&
+ * (s->cert->key->privatekey->type ==
+ * EVP_PKEY_EC) && ...)
+ * ecdh_clnt_cert = 1;
+ */
+ }
+
+ if (s->session->sess_cert->peer_ecdh_tmp != NULL)
+ {
+ tkey = s->session->sess_cert->peer_ecdh_tmp;
+ }
+ else
+ {
+ /* Get the Server Public Key from Cert */
+ srvr_pub_pkey = X509_get_pubkey(s->session-> \
+ sess_cert->peer_pkeys[SSL_PKEY_ECC].x509);
+ if ((srvr_pub_pkey == NULL) ||
+ (srvr_pub_pkey->type != EVP_PKEY_EC) ||
+ (srvr_pub_pkey->pkey.ec == NULL))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ tkey = srvr_pub_pkey->pkey.ec;
+ }
+
+ srvr_group = EC_KEY_get0_group(tkey);
+ srvr_ecpoint = EC_KEY_get0_public_key(tkey);
+
+ if ((srvr_group == NULL) || (srvr_ecpoint == NULL))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ if ((clnt_ecdh=EC_KEY_new()) == NULL)
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ if (!EC_KEY_set_group(clnt_ecdh, srvr_group))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
+ goto err;
+ }
+ if (ecdh_clnt_cert)
+ {
+ /* Reuse key info from our certificate
+ * We only need our private key to perform
+ * the ECDH computation.
+ */
+ const BIGNUM *priv_key;
+ tkey = s->cert->key->privatekey->pkey.ec;
+ priv_key = EC_KEY_get0_private_key(tkey);
+ if (priv_key == NULL)
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ if (!EC_KEY_set_private_key(clnt_ecdh, priv_key))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_EC_LIB);
+ goto err;
+ }
+ }
+ else
+ {
+ /* Generate a new ECDH key pair */
+ if (!(EC_KEY_generate_key(clnt_ecdh)))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, ERR_R_ECDH_LIB);
+ goto err;
+ }
+ }
+
+ /* use the 'p' output buffer for the ECDH key, but
+ * make sure to clear it out afterwards
+ */
+
+ field_size = EC_GROUP_get_degree(srvr_group);
+ if (field_size <= 0)
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_ECDH_LIB);
+ goto err;
+ }
+ n=ECDH_compute_key(p, (field_size+7)/8, srvr_ecpoint, clnt_ecdh, NULL);
+ if (n <= 0)
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_ECDH_LIB);
+ goto err;
+ }
+
+ /* generate master key from the result */
+ s->session->master_key_length = s->method->ssl3_enc \
+ -> generate_master_secret(s,
+ s->session->master_key,
+ p, n);
+
+ memset(p, 0, n); /* clean up */
+
+ if (ecdh_clnt_cert)
+ {
+ /* Send empty client key exch message */
+ n = 0;
+ }
+ else
+ {
+ /* First check the size of encoding and
+ * allocate memory accordingly.
+ */
+ encoded_pt_len =
+ EC_POINT_point2oct(srvr_group,
+ EC_KEY_get0_public_key(clnt_ecdh),
+ POINT_CONVERSION_UNCOMPRESSED,
+ NULL, 0, NULL);
+
+ encodedPoint = (unsigned char *)
+ OPENSSL_malloc(encoded_pt_len *
+ sizeof(unsigned char));
+ bn_ctx = BN_CTX_new();
+ if ((encodedPoint == NULL) ||
+ (bn_ctx == NULL))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+
+ /* Encode the public key */
+ n = EC_POINT_point2oct(srvr_group,
+ EC_KEY_get0_public_key(clnt_ecdh),
+ POINT_CONVERSION_UNCOMPRESSED,
+ encodedPoint, encoded_pt_len, bn_ctx);
+
+ *p = n; /* length of encoded point */
+ /* Encoded point will be copied here */
+ p += 1;
+ /* copy the point */
+ memcpy((unsigned char *)p, encodedPoint, n);
+ /* increment n to account for length field */
+ n += 1;
+ }
+
+ /* Free allocated memory */
+ BN_CTX_free(bn_ctx);
+ if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
+ if (clnt_ecdh != NULL)
+ EC_KEY_free(clnt_ecdh);
+ EVP_PKEY_free(srvr_pub_pkey);
+ }
+#endif /* !OPENSSL_NO_ECDH */
else
{
- ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_HANDSHAKE_FAILURE);
- SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
+ ssl3_send_alert(s, SSL3_AL_FATAL,
+ SSL_AD_HANDSHAKE_FAILURE);
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
goto err;
}
/* SSL3_ST_CW_KEY_EXCH_B */
return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
err:
+#ifndef OPENSSL_NO_ECDH
+ BN_CTX_free(bn_ctx);
+ if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
+ if (clnt_ecdh != NULL)
+ EC_KEY_free(clnt_ecdh);
+ EVP_PKEY_free(srvr_pub_pkey);
+#endif
return(-1);
}
-static int ssl3_send_client_verify(SSL *s)
+int ssl3_send_client_verify(SSL *s)
{
unsigned char *p,*d;
unsigned char data[MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH];
unsigned u=0;
#endif
unsigned long n;
-#ifndef OPENSSL_NO_DSA
+#if !defined(OPENSSL_NO_DSA) || !defined(OPENSSL_NO_ECDSA)
int j;
#endif
n=j+2;
}
else
+#endif
+#ifndef OPENSSL_NO_ECDSA
+ if (pkey->type == EVP_PKEY_EC)
+ {
+ if (!ECDSA_sign(pkey->save_type,
+ &(data[MD5_DIGEST_LENGTH]),
+ SHA_DIGEST_LENGTH,&(p[2]),
+ (unsigned int *)&j,pkey->pkey.ec))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,
+ ERR_R_ECDSA_LIB);
+ goto err;
+ }
+ s2n(j,p);
+ n=j+2;
+ }
+ else
#endif
{
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
*(d++)=SSL3_MT_CERTIFICATE_VERIFY;
l2n3(n,d);
+ s->state=SSL3_ST_CW_CERT_VRFY_B;
s->init_num=(int)n+4;
s->init_off=0;
}
return(-1);
}
-static int ssl3_send_client_certificate(SSL *s)
+int ssl3_send_client_certificate(SSL *s)
{
X509 *x509=NULL;
EVP_PKEY *pkey=NULL;
* ssl->rwstate=SSL_X509_LOOKUP; return(-1);
* We then get retied later */
i=0;
- if (s->ctx->client_cert_cb != NULL)
- i=s->ctx->client_cert_cb(s,&(x509),&(pkey));
+ i = ssl_do_client_cert_cb(s, &x509, &pkey);
if (i < 0)
{
s->rwstate=SSL_X509_LOOKUP;
#define has_bits(i,m) (((i)&(m)) == (m))
-static int ssl3_check_cert_and_algorithm(SSL *s)
+int ssl3_check_cert_and_algorithm(SSL *s)
{
int i,idx;
long algs;
sc=s->session->sess_cert;
- if (sc == NULL)
- {
- SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
- goto err;
- }
-
algs=s->s3->tmp.new_cipher->algorithms;
/* we don't have a certificate */
if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
return(1);
+ if (sc == NULL)
+ {
+ SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
#ifndef OPENSSL_NO_RSA
rsa=s->session->sess_cert->peer_rsa_tmp;
#endif
/* This is the passed certificate */
idx=sc->peer_cert_type;
+#ifndef OPENSSL_NO_ECDH
+ if (idx == SSL_PKEY_ECC)
+ {
+ if (check_srvr_ecc_cert_and_alg(sc->peer_pkeys[idx].x509,
+ s->s3->tmp.new_cipher) == 0)
+ { /* check failed */
+ SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_BAD_ECC_CERT);
+ goto f_err;
+ }
+ else
+ {
+ return 1;
+ }
+ }
+#endif
pkey=X509_get_pubkey(sc->peer_pkeys[idx].x509);
i=X509_certificate_type(sc->peer_pkeys[idx].x509,pkey);
EVP_PKEY_free(pkey);
if (algs & SSL_kRSA)
{
if (rsa == NULL
- || RSA_size(rsa) > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
+ || RSA_size(rsa)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
{
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_RSA_KEY);
goto f_err;
if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
{
if (dh == NULL
- || DH_size(dh) > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
+ || DH_size(dh)*8 > SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher))
{
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_EXPORT_TMP_DH_KEY);
goto f_err;
return(0);
}
+
+#ifndef OPENSSL_NO_ECDH
+/* This is the complement of nid2curve_id in s3_srvr.c. */
+static int curve_id2nid(int curve_id)
+{
+ /* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
+ * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
+ static int nid_list[26] =
+ {
+ 0,
+ NID_sect163k1, /* sect163k1 (1) */
+ NID_sect163r1, /* sect163r1 (2) */
+ NID_sect163r2, /* sect163r2 (3) */
+ NID_sect193r1, /* sect193r1 (4) */
+ NID_sect193r2, /* sect193r2 (5) */
+ NID_sect233k1, /* sect233k1 (6) */
+ NID_sect233r1, /* sect233r1 (7) */
+ NID_sect239k1, /* sect239k1 (8) */
+ NID_sect283k1, /* sect283k1 (9) */
+ NID_sect283r1, /* sect283r1 (10) */
+ NID_sect409k1, /* sect409k1 (11) */
+ NID_sect409r1, /* sect409r1 (12) */
+ NID_sect571k1, /* sect571k1 (13) */
+ NID_sect571r1, /* sect571r1 (14) */
+ NID_secp160k1, /* secp160k1 (15) */
+ NID_secp160r1, /* secp160r1 (16) */
+ NID_secp160r2, /* secp160r2 (17) */
+ NID_secp192k1, /* secp192k1 (18) */
+ NID_X9_62_prime192v1, /* secp192r1 (19) */
+ NID_secp224k1, /* secp224k1 (20) */
+ NID_secp224r1, /* secp224r1 (21) */
+ NID_secp256k1, /* secp256k1 (22) */
+ NID_X9_62_prime256v1, /* secp256r1 (23) */
+ NID_secp384r1, /* secp384r1 (24) */
+ NID_secp521r1 /* secp521r1 (25) */
+ };
+
+ if ((curve_id < 1) || (curve_id > 25)) return 0;
+
+ return nid_list[curve_id];
+}
+#endif
+
+/* Check to see if handshake is full or resumed. Usually this is just a
+ * case of checking to see if a cache hit has occurred. In the case of
+ * session tickets we have to check the next message to be sure.
+ */
+
+#ifndef OPENSSL_NO_TLSEXT
+int ssl3_check_finished(SSL *s)
+ {
+ int ok;
+ long n;
+ /* If we have no ticket or session ID is non-zero length (a match of
+ * a non-zero session length would never reach here) it cannot be a
+ * resumed session.
+ */
+ if (!s->session->tlsext_tick || s->session->session_id_length)
+ return 1;
+ /* this function is called when we really expect a Certificate
+ * message, so permit appropriate message length */
+ n=s->method->ssl_get_message(s,
+ SSL3_ST_CR_CERT_A,
+ SSL3_ST_CR_CERT_B,
+ -1,
+ s->max_cert_list,
+ &ok);
+ if (!ok) return((int)n);
+ s->s3->tmp.reuse_message = 1;
+ if ((s->s3->tmp.message_type == SSL3_MT_FINISHED)
+ || (s->s3->tmp.message_type == SSL3_MT_NEWSESSION_TICKET))
+ return 2;
+
+ return 1;
+ }
+#endif
+
+int ssl_do_client_cert_cb(SSL *s, X509 **px509, EVP_PKEY **ppkey)
+ {
+ int i = 0;
+#ifndef OPENSSL_NO_ENGINE
+ if (s->ctx->client_cert_engine)
+ {
+ i = ENGINE_load_ssl_client_cert(s->ctx->client_cert_engine, s,
+ SSL_get_client_CA_list(s),
+ px509, ppkey, NULL, NULL, NULL);
+ if (i != 0)
+ return i;
+ }
+#endif
+ if (s->ctx->client_cert_cb)
+ i = s->ctx->client_cert_cb(s,px509,ppkey);
+ return i;
+ }
projects / openssl.git / blobdiff