* 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/md5.h>
-#include <openssl/sha.h>
#include <openssl/evp.h>
-#include "ssl_locl.h"
+#include <openssl/md5.h>
+#include <openssl/dh.h>
+#include <openssl/bn.h>
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(X509_NAME **a,X509_NAME **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);
+static int ca_dn_cmp(const X509_NAME * const *a,const X509_NAME * const *b);
+
+#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)
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;
+ CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
+
+ if (init)
+ {
+ 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;
+ init=0;
+ }
+
+ CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
}
return(&SSLv3_client_data);
}
int ssl3_connect(SSL *s)
{
- BUF_MEM *buf;
+ BUF_MEM *buf=NULL;
unsigned long Time=time(NULL),l;
long num1;
- void (*cb)()=NULL;
+ void (*cb)(const SSL *ssl,int type,int val)=NULL;
int ret= -1;
int new_state,state,skip=0;;
- RAND_seed(&Time,sizeof(Time));
+ RAND_add(&Time,sizeof(Time),0);
ERR_clear_error();
clear_sys_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 (;;)
{
if (cb != NULL) cb(s,SSL_CB_HANDSHAKE_START,1);
if ((s->version & 0xff00 ) != 0x0300)
- abort();
+ {
+ SSLerr(SSL_F_SSL3_CONNECT, ERR_R_INTERNAL_ERROR);
+ ret = -1;
+ goto end;
+ }
+
/* s->version=SSL3_VERSION; */
s->type=SSL_ST_CONNECT;
goto end;
}
s->init_buf=buf;
+ buf=NULL;
}
if (!ssl3_setup_buffers(s)) { ret= -1; goto end; }
case SSL3_ST_CR_CERT_A:
case SSL3_ST_CR_CERT_B:
- /* Check if it is anon DH */
+ /* Check if it is anon DH/ECDH */
if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
{
ret=ssl3_get_server_certificate(s);
* 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;
case SSL3_ST_CW_FINISHED_B:
ret=ssl3_send_finished(s,
SSL3_ST_CW_FINISHED_A,SSL3_ST_CW_FINISHED_B,
- s->method->ssl3_enc->client_finished,
- s->method->ssl3_enc->client_finished_len);
+ s->method->ssl3_enc->client_finished_label,
+ s->method->ssl3_enc->client_finished_label_len);
if (ret <= 0) goto end;
s->state=SSL3_ST_CW_FLUSH;
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;
p=s->s3->client_random;
Time=time(NULL); /* Time */
l2n(Time,p);
- RAND_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;
}
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;
long n;
SSL_COMP *comp;
- 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,
+ -1,
300, /* ?? */
&ok);
if (!ok) return((int)n);
- d=p=(unsigned char *)s->init_buf->data;
+
+ if ( SSL_version(s) == DTLS1_VERSION)
+ {
+ 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;
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))
{
if (!(s->options &
SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG))
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 */
- n=ssl3_get_message(s,
+ n=s->method->ssl_get_message(s,
SSL3_ST_CR_CERT_A,
SSL3_ST_CR_CERT_B,
-1,
-#if defined(MSDOS) && !defined(WIN32)
- 1024*30, /* 30k max cert list :-) */
-#else
- 1024*100, /* 100k max cert list :-) */
-#endif
+ s->max_cert_list,
&ok);
if (!ok) return((int)n);
SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_BAD_MESSAGE_TYPE);
goto f_err;
}
- d=p=(unsigned char *)s->init_buf->data;
+ 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)
+#ifndef OPENSSL_NO_KRB5
+ && (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);
goto f_err;
}
+ ERR_clear_error(); /* but we keep s->verify_result */
sc=ssl_sess_cert_new();
if (sc == NULL) goto err;
s->session->sess_cert=sc;
sc->cert_chain=sk;
+ /* Inconsistency alert: cert_chain does include the peer's
+ * certificate, which we don't include in s3_srvr.c */
x=sk_X509_value(sk,0);
sk=NULL;
+ /* VRS 19990621: possible memory leak; sk=null ==> !sk_pop_free() @end*/
pkey=X509_get_pubkey(x);
- if ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey))
+ /* 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("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);
+#endif /* KSSL_DEBUG */
+
+ if (need_cert && ((pkey == NULL) || EVP_PKEY_missing_parameters(pkey)))
{
x=NULL;
al=SSL3_AL_FATAL;
- SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
+ SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
+ SSL_R_UNABLE_TO_FIND_PUBLIC_KEY_PARAMETERS);
goto f_err;
}
i=ssl_cert_type(x,pkey);
- if (i < 0)
+ if (need_cert && i < 0)
{
x=NULL;
al=SSL3_AL_FATAL;
- SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,SSL_R_UNKNOWN_CERTIFICATE_TYPE);
+ SSLerr(SSL_F_SSL3_GET_SERVER_CERTIFICATE,
+ SSL_R_UNKNOWN_CERTIFICATE_TYPE);
goto f_err;
}
- sc->peer_cert_type=i;
- CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
- if (sc->peer_pkeys[i].x509 != NULL) /* Why would this ever happen?
- * We just created sc a couple of
- * lines ago. */
- X509_free(sc->peer_pkeys[i].x509);
- sc->peer_pkeys[i].x509=x;
- sc->peer_key= &(sc->peer_pkeys[i]);
+ 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);
- CRYPTO_add(&x->references,1,CRYPTO_LOCK_X509);
- s->session->peer=x;
+ if (s->session->peer != NULL)
+ X509_free(s->session->peer);
+ s->session->peer=NULL;
+ }
+ s->session->verify_result = s->verify_result;
x=NULL;
ret=1;
return(ret);
}
-static int ssl3_get_key_exchange(SSL *s)
+int ssl3_get_key_exchange(SSL *s)
{
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
unsigned char *q,md_buf[EVP_MAX_MD_SIZE*2];
#endif
EVP_MD_CTX md_ctx;
int al,i,j,param_len,ok;
long n,alg;
EVP_PKEY *pkey=NULL;
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
RSA *rsa=NULL;
#endif
-#ifndef NO_DH
+#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
- n=ssl3_get_message(s,
+ /* use same message size as in ssl3_get_certificate_request()
+ * as ServerKeyExchange message may be skipped */
+ n=s->method->ssl_get_message(s,
SSL3_ST_CR_KEY_EXCH_A,
SSL3_ST_CR_KEY_EXCH_B,
-1,
- 1024*8, /* ?? */
+ s->max_cert_list,
&ok);
if (!ok) return((int)n);
return(1);
}
- param=p=(unsigned char *)s->init_buf->data;
+ param=p=(unsigned char *)s->init_msg;
if (s->session->sess_cert != NULL)
{
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
if (s->session->sess_cert->peer_rsa_tmp != NULL)
{
RSA_free(s->session->sess_cert->peer_rsa_tmp);
s->session->sess_cert->peer_rsa_tmp=NULL;
}
#endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
if (s->session->sess_cert->peer_dh_tmp)
{
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
param_len=0;
alg=s->s3->tmp.new_cipher->algorithms;
+ EVP_MD_CTX_init(&md_ctx);
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
if (alg & SSL_kRSA)
{
if ((rsa=RSA_new()) == NULL)
pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
else
{
- SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_INTERNAL_ERROR);
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
goto err;
}
s->session->sess_cert->peer_rsa_tmp=rsa;
rsa=NULL;
}
- else
+#else /* OPENSSL_NO_RSA */
+ if (0)
+ ;
#endif
-#ifndef NO_DH
- if (alg & SSL_kEDH)
+#ifndef OPENSSL_NO_DH
+ else if (alg & SSL_kEDH)
{
if ((dh=DH_new()) == NULL)
{
p+=i;
n-=param_len;
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
if (alg & SSL_aRSA)
pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_RSA_ENC].x509);
- else
+#else
+ if (0)
+ ;
#endif
-#ifndef NO_DSA
- if (alg & SSL_aDSS)
+#ifndef OPENSSL_NO_DSA
+ else if (alg & SSL_aDSS)
pkey=X509_get_pubkey(s->session->sess_cert->peer_pkeys[SSL_PKEY_DSA_SIGN].x509);
#endif
/* else anonymous DH, so no certificate or pkey. */
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_TRIED_TO_USE_UNSUPPORTED_CIPHER);
goto f_err;
}
+#endif /* !OPENSSL_NO_DH */
+
+#ifndef OPENSSL_NO_ECDH
+ else if (alg & SSL_kECDHE)
+ {
+ 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 two bytes.
+ */
+ param_len=2;
+ if ((param_len > n) ||
+ (*p != NAMED_CURVE_TYPE) ||
+ ((curve_nid = curve_id2nid(*(p + 1))) == 0))
+ {
+ al=SSL_AD_INTERNAL_ERROR;
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_UNABLE_TO_FIND_ECDH_PARAMETERS);
+ goto f_err;
+ }
+
+ if (!(ecdh->group=EC_GROUP_new_by_curve_name(curve_nid)))
+ {
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_EC_LIB);
+ goto err;
+ }
+
+ if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
+ (EC_GROUP_get_degree(ecdh->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+=2;
+
+ /* Next, get the encoded ECPoint */
+ if (((srvr_ecpoint = EC_POINT_new(ecdh->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(ecdh->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. */
+ ecdh->pub_key = srvr_ecpoint;
+ s->session->sess_cert->peer_ecdh_tmp=ecdh;
+ ecdh=NULL;
+ BN_CTX_free(bn_ctx);
+ 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)
{
goto f_err;
}
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA)
{
int num;
q=md_buf;
for (num=2; num > 0; num--)
{
- EVP_DigestInit(&md_ctx,(num == 2)
- ?s->ctx->md5:s->ctx->sha1);
+ 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_DigestUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
EVP_DigestUpdate(&md_ctx,param,param_len);
- EVP_DigestFinal(&md_ctx,q,(unsigned int *)&i);
+ EVP_DigestFinal_ex(&md_ctx,q,(unsigned int *)&i);
q+=i;
j+=i;
}
- i=RSA_public_decrypt((int)n,p,p,pkey->pkey.rsa,
- RSA_PKCS1_PADDING);
- if (i <= 0)
+ i=RSA_verify(NID_md5_sha1, md_buf, j, p, n,
+ pkey->pkey.rsa);
+ if (i < 0)
{
al=SSL_AD_DECRYPT_ERROR;
SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_BAD_RSA_DECRYPT);
goto f_err;
}
- if ((j != i) || (memcmp(p,md_buf,i) != 0))
+ if (i == 0)
{
/* bad signature */
al=SSL_AD_DECRYPT_ERROR;
}
else
#endif
-#ifndef NO_DSA
+#ifndef OPENSSL_NO_DSA
if (pkey->type == EVP_PKEY_DSA)
{
/* lets do DSS */
- EVP_VerifyInit(&md_ctx,EVP_dss1());
+ EVP_VerifyInit_ex(&md_ctx,EVP_dss1(), 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))
+ {
+ /* 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);
else
#endif
{
- SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_INTERNAL_ERROR);
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
goto err;
}
}
/* still data left over */
if (!(alg & SSL_aNULL))
{
- SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,SSL_R_INTERNAL_ERROR);
+ SSLerr(SSL_F_SSL3_GET_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
goto err;
}
if (n != 0)
}
}
EVP_PKEY_free(pkey);
+ EVP_MD_CTX_cleanup(&md_ctx);
return(1);
f_err:
ssl3_send_alert(s,SSL3_AL_FATAL,al);
err:
EVP_PKEY_free(pkey);
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
if (rsa != NULL)
RSA_free(rsa);
#endif
-#ifndef NO_DH
+#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,
-#if defined(MSDOS) && !defined(WIN32)
- 1024*30, /* 30k max cert list :-) */
-#else
- 1024*100, /* 100k max cert list :-) */
-#endif
+ s->max_cert_list,
&ok);
if (!ok) return((int)n);
}
}
- d=p=(unsigned char *)s->init_buf->data;
+ p=d=(unsigned char *)s->init_msg;
if ((ca_sk=sk_X509_NAME_new(ca_dn_cmp)) == NULL)
{
if ((xn=d2i_X509_NAME(NULL,&q,l)) == NULL)
{
- /* If netscape tollerance is on, ignore errors */
+ /* If netscape tolerance is on, ignore errors */
if (s->options & SSL_OP_NETSCAPE_CA_DN_BUG)
goto cont;
else
ERR_clear_error();
}
- /* we should setup a certficate to return.... */
+ /* we should setup a certificate to return.... */
s->s3->tmp.cert_req=1;
s->s3->tmp.ctype_num=ctype_num;
if (s->s3->tmp.ca_names != NULL)
return(ret);
}
-static int ca_dn_cmp(X509_NAME **a, X509_NAME **b)
+static int ca_dn_cmp(const X509_NAME * const *a, const X509_NAME * const *b)
{
return(X509_NAME_cmp(*a,*b));
}
-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)
+
+static const int KDF1_SHA1_len = 20;
+static void *KDF1_SHA1(const void *in, size_t inlen, void *out, size_t *outlen)
+ {
+#ifndef OPENSSL_NO_SHA
+ if (*outlen < SHA_DIGEST_LENGTH)
+ return NULL;
+ else
+ *outlen = SHA_DIGEST_LENGTH;
+ return SHA1(in, inlen, out);
+#else
+ return NULL;
+#endif
+ }
+
+int ssl3_send_client_key_exchange(SSL *s)
{
unsigned char *p,*d;
int n;
unsigned long l;
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
unsigned char *q;
EVP_PKEY *pkey=NULL;
#endif
+#ifndef OPENSSL_NO_KRB5
+ KSSL_ERR kssl_err;
+#endif /* OPENSSL_NO_KRB5 */
+#ifndef OPENSSL_NO_ECDH
+ EC_KEY *clnt_ecdh = NULL;
+ 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;
-#ifndef NO_RSA
- if (l & SSL_kRSA)
+ /* Fool emacs indentation */
+ if (0) {}
+#ifndef OPENSSL_NO_RSA
+ else if (l & SSL_kRSA)
{
RSA *rsa;
unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
(pkey->type != EVP_PKEY_RSA) ||
(pkey->pkey.rsa == NULL))
{
- SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,SSL_R_INTERNAL_ERROR);
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,ERR_R_INTERNAL_ERROR);
goto err;
}
rsa=pkey->pkey.rsa;
+ EVP_PKEY_free(pkey);
}
tmp_buf[0]=s->client_version>>8;
tmp_buf[1]=s->client_version&0xff;
- RAND_bytes(&(tmp_buf[2]),SSL_MAX_MASTER_KEY_LENGTH-2);
+ 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);
}
- else
#endif
-#ifndef NO_DH
- if (l & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
+#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;
+ EVP_CIPHER_CTX ciph_ctx;
+ EVP_CIPHER *enc = NULL;
+ unsigned char iv[EVP_MAX_IV_LENGTH];
+ unsigned char tmp_buf[SSL_MAX_MASTER_KEY_LENGTH];
+ unsigned char epms[SSL_MAX_MASTER_KEY_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);
+#endif /* KSSL_DEBUG */
+
+ authp = NULL;
+#ifdef KRB5SENDAUTH
+ if (KRB5SENDAUTH) authp = &authenticator;
+#endif /* KRB5SENDAUTH */
+
+ krb5rc = kssl_cget_tkt(kssl_ctx, &enc_ticket, authp,
+ &kssl_err);
+ enc = kssl_map_enc(kssl_ctx->enctype);
+ 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 kssl_err=%s\n", kssl_err.text);
+ }
+#endif /* KSSL_DEBUG */
+
+ if (krb5rc)
+ {
+ ssl3_send_alert(s,SSL3_AL_FATAL,
+ SSL_AD_HANDSHAKE_FAILURE);
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ kssl_err.reason);
+ 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);
+ **
+ ** Now using real RFC 2712 KerberosWrapper
+ ** (Thanks to Simon Wilkinson <sxw@sxw.org.uk>)
+ ** Note: 2712 "opaque" types are here replaced
+ ** with a 2-byte length followed by the value.
+ ** Example:
+ ** KerberosWrapper= xx xx asn1ticket 0 0 xx xx encpms
+ ** Where "xx xx" = length bytes. Shown here with
+ ** optional authenticator omitted.
+ */
+
+ /* KerberosWrapper.Ticket */
+ s2n(enc_ticket->length,p);
+ memcpy(p, enc_ticket->data, enc_ticket->length);
+ p+= enc_ticket->length;
+ n = enc_ticket->length + 2;
+
+ /* KerberosWrapper.Authenticator */
+ if (authp && authp->length)
+ {
+ s2n(authp->length,p);
+ memcpy(p, authp->data, authp->length);
+ p+= authp->length;
+ n+= authp->length + 2;
+
+ free(authp->data);
+ authp->data = NULL;
+ authp->length = 0;
+ }
+ else
+ {
+ s2n(0,p);/* null authenticator length */
+ n+=2;
+ }
+
+ if (RAND_bytes(tmp_buf,sizeof tmp_buf) <= 0)
+ goto err;
+
+ /* 20010420 VRS. Tried it this way; failed.
+ ** EVP_EncryptInit_ex(&ciph_ctx,enc, NULL,NULL);
+ ** EVP_CIPHER_CTX_set_key_length(&ciph_ctx,
+ ** kssl_ctx->length);
+ ** EVP_EncryptInit_ex(&ciph_ctx,NULL, 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,
+ 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 */
+ s2n(outl,p);
+ memcpy(p, epms, outl);
+ p+=outl;
+ n+=outl + 2;
+
+ s->session->master_key_length=
+ s->method->ssl3_enc->generate_master_secret(s,
+ s->session->master_key,
+ tmp_buf, sizeof tmp_buf);
+
+ 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;
/* perhaps clean things up a bit EAY EAY EAY EAY*/
}
- else
#endif
+
+#ifndef OPENSSL_NO_ECDH
+ else if ((l & SSL_kECDH) || (l & SSL_kECDHE))
+ {
+ EC_GROUP *srvr_group = NULL;
+ 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)
+ {
+ srvr_group = s->session->sess_cert-> \
+ peer_ecdh_tmp->group;
+ srvr_ecpoint = s->session->sess_cert-> \
+ peer_ecdh_tmp->pub_key;
+ }
+ 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.eckey == NULL))
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_INTERNAL_ERROR);
+ goto err;
+ }
+
+ srvr_group = srvr_pub_pkey->pkey.eckey->group;
+ srvr_ecpoint =
+ srvr_pub_pkey->pkey.eckey->pub_key;
+ }
+
+ 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;
+ }
+
+ clnt_ecdh->group = srvr_group;
+ if (ecdh_clnt_cert)
+ {
+ /* Reuse key info from our certificate
+ * We only need our private key to perform
+ * the ECDH computation.
+ */
+ clnt_ecdh->priv_key = BN_dup(s->cert->key-> \
+ privatekey->pkey.eckey->priv_key);
+ }
+ 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(clnt_ecdh->group);
+ if (field_size <= 0)
+ {
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+ ERR_R_ECDH_LIB);
+ goto err;
+ }
+ /* If field size is not more than 24 octets, then use SHA-1 hash of result;
+ * otherwise, use result (see section 4.8 of draft-ietf-tls-ecc-03.txt;
+ * this is new with this version of the Internet Draft).
+ */
+ if (field_size <= 24 * 8)
+ n=ECDH_compute_key(p, KDF1_SHA1_len, srvr_ecpoint, clnt_ecdh, KDF1_SHA1);
+ else
+ 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(clnt_ecdh->group,
+ clnt_ecdh->pub_key,
+ 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(clnt_ecdh->group,
+ clnt_ecdh->pub_key,
+ 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)
+ {
+ /* group is shared */
+ clnt_ecdh->group = 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,SSL_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)
+ {
+ /* group is shared */
+ clnt_ecdh->group = 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];
EVP_PKEY *pkey;
-#ifndef NO_RSA
- int i=0;
+#ifndef OPENSSL_NO_RSA
+ unsigned u=0;
#endif
unsigned long n;
-#ifndef NO_DSA
+#ifndef OPENSSL_NO_DSA
int j;
#endif
s->method->ssl3_enc->cert_verify_mac(s,&(s->s3->finish_dgst2),
&(data[MD5_DIGEST_LENGTH]));
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
if (pkey->type == EVP_PKEY_RSA)
{
s->method->ssl3_enc->cert_verify_mac(s,
&(s->s3->finish_dgst1),&(data[0]));
- i=RSA_private_encrypt(
- MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
- data,&(p[2]),pkey->pkey.rsa,
- RSA_PKCS1_PADDING);
- if (i <= 0)
+ if (RSA_sign(NID_md5_sha1, data,
+ MD5_DIGEST_LENGTH+SHA_DIGEST_LENGTH,
+ &(p[2]), &u, pkey->pkey.rsa) <= 0 )
{
SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_RSA_LIB);
goto err;
}
- s2n(i,p);
- n=i+2;
+ s2n(u,p);
+ n=u+2;
}
else
#endif
-#ifndef NO_DSA
+#ifndef OPENSSL_NO_DSA
if (pkey->type == EVP_PKEY_DSA)
{
if (!DSA_sign(pkey->save_type,
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.eckey))
+ {
+ 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,SSL_R_INTERNAL_ERROR);
+ SSLerr(SSL_F_SSL3_SEND_CLIENT_VERIFY,ERR_R_INTERNAL_ERROR);
goto err;
}
*(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;
#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;
EVP_PKEY *pkey=NULL;
SESS_CERT *sc;
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
RSA *rsa;
#endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
DH *dh;
#endif
if (sc == NULL)
{
- SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_INTERNAL_ERROR);
+ 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))
+ if (algs & (SSL_aDH|SSL_aNULL|SSL_aKRB5))
return(1);
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
rsa=s->session->sess_cert->peer_rsa_tmp;
#endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
dh=s->session->sess_cert->peer_dh_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);
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_RSA_SIGNING_CERT);
goto f_err;
}
-#ifndef NO_DSA
+#ifndef OPENSSL_NO_DSA
else if ((algs & SSL_aDSS) && !has_bits(i,EVP_PK_DSA|EVP_PKT_SIGN))
{
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DSA_SIGNING_CERT);
goto f_err;
}
#endif
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
if ((algs & SSL_kRSA) &&
!(has_bits(i,EVP_PK_RSA|EVP_PKT_ENC) || (rsa != NULL)))
{
goto f_err;
}
#endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
if ((algs & SSL_kEDH) &&
!(has_bits(i,EVP_PK_DH|EVP_PKT_EXCH) || (dh != NULL)))
{
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_RSA_CERT);
goto f_err;
}
-#ifndef NO_DSA
+#ifndef OPENSSL_NO_DSA
else if ((algs & SSL_kDHd) && !has_bits(i,EVP_PK_DH|EVP_PKS_DSA))
{
SSLerr(SSL_F_SSL3_CHECK_CERT_AND_ALGORITHM,SSL_R_MISSING_DH_DSA_CERT);
#endif
#endif
- if (SSL_IS_EXPORT(algs) && !has_bits(i,EVP_PKT_EXP))
+ if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) && !has_bits(i,EVP_PKT_EXP))
{
-#ifndef NO_RSA
+#ifndef OPENSSL_NO_RSA
if (algs & SSL_kRSA)
{
if (rsa == NULL
- || RSA_size(rsa) > SSL_EXPORT_PKEYLENGTH(algs))
+ || 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;
}
else
#endif
-#ifndef NO_DH
+#ifndef OPENSSL_NO_DH
if (algs & (SSL_kEDH|SSL_kDHr|SSL_kDHd))
{
if (dh == NULL
- || DH_size(dh) > SSL_EXPORT_PKEYLENGTH(algs))
+ || 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
projects / openssl.git / blobdiff