Vendor import of OpenSSL 0.9.8b

1 files changed, 598 insertions, 89 deletions

diff --git a/crypto/openssl/ssl/s3_srvr.c b/crypto/openssl/ssl/s3_srvr.c
index 44248ba..a8c5df8 100644
--- a/crypto/openssl/ssl/s3_srvr.c
+++ b/crypto/openssl/ssl/s3_srvr.c
@@ -56,7 +56,7 @@
  * [including the GNU Public Licence.]
  */
 /* ====================================================================
- * Copyright (c) 1998-2002 The OpenSSL Project.  All rights reserved.
+ * Copyright (c) 1998-2005 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
@@ -108,11 +108,23 @@
  * 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.
+ *
+ */
 
 #define REUSE_CIPHER_BUG
 #define NETSCAPE_HANG_BUG
 
-
 #include <stdio.h>
 #include "ssl_locl.h"
 #include "kssl_lcl.h"
@@ -121,23 +133,20 @@
 #include <openssl/objects.h>
 #include <openssl/evp.h>
 #include <openssl/x509.h>
+#ifndef OPENSSL_NO_DH
+#include <openssl/dh.h>
+#endif
+#include <openssl/bn.h>
 #ifndef OPENSSL_NO_KRB5
 #include <openssl/krb5_asn.h>
 #endif
 #include <openssl/md5.h>
-#include <openssl/fips.h>
 
 static SSL_METHOD *ssl3_get_server_method(int ver);
-static int ssl3_get_client_hello(SSL *s);
-static int ssl3_check_client_hello(SSL *s);
-static int ssl3_send_server_hello(SSL *s);
-static int ssl3_send_server_key_exchange(SSL *s);
-static int ssl3_send_certificate_request(SSL *s);
-static int ssl3_send_server_done(SSL *s);
-static int ssl3_get_client_key_exchange(SSL *s);
-static int ssl3_get_client_certificate(SSL *s);
-static int ssl3_get_cert_verify(SSL *s);
-static int ssl3_send_hello_request(SSL *s);
+
+#ifndef OPENSSL_NO_ECDH
+static int nid2curve_id(int nid);
+#endif
 
 static SSL_METHOD *ssl3_get_server_method(int ver)
 	{
@@ -147,33 +156,15 @@ static SSL_METHOD *ssl3_get_server_method(int ver)
 		return(NULL);
 	}
 
-SSL_METHOD *SSLv3_server_method(void)
-	{
-	static int init=1;
-	static SSL_METHOD SSLv3_server_data;
-
-	if (init)
-		{
-		CRYPTO_w_lock(CRYPTO_LOCK_SSL_METHOD);
-
-		if (init)
-			{
-			memcpy((char *)&SSLv3_server_data,(char *)sslv3_base_method(),
-				sizeof(SSL_METHOD));
-			SSLv3_server_data.ssl_accept=ssl3_accept;
-			SSLv3_server_data.get_ssl_method=ssl3_get_server_method;
-			init=0;
-			}
-			
-		CRYPTO_w_unlock(CRYPTO_LOCK_SSL_METHOD);
-		}
-	return(&SSLv3_server_data);
-	}
+IMPLEMENT_ssl3_meth_func(SSLv3_server_method,
+			ssl3_accept,
+			ssl_undefined_function,
+			ssl3_get_server_method)
 
 int ssl3_accept(SSL *s)
 	{
 	BUF_MEM *buf;
-	unsigned long l,Time=time(NULL);
+	unsigned long l,Time=(unsigned long)time(NULL);
 	void (*cb)(const SSL *ssl,int type,int val)=NULL;
 	long num1;
 	int ret= -1;
@@ -309,7 +300,7 @@ int ssl3_accept(SSL *s)
 
 		case SSL3_ST_SW_CERT_A:
 		case SSL3_ST_SW_CERT_B:
-			/* Check if it is anon DH */
+			/* Check if it is anon DH or anon ECDH */
 			if (!(s->s3->tmp.new_cipher->algorithms & SSL_aNULL))
 				{
 				ret=ssl3_send_server_certificate(s);
@@ -340,9 +331,18 @@ int ssl3_accept(SSL *s)
 			else
 				s->s3->tmp.use_rsa_tmp=0;
 
+
 			/* only send if a DH key exchange, fortezza or
-			 * RSA but we have a sign only certificate */
+			 * RSA but we have a sign only certificate
+			 *
+			 * For ECC ciphersuites, we send a serverKeyExchange
+			 * message only if the cipher suite is either
+			 * ECDH-anon or ECDHE. In other cases, the
+			 * server certificate contains the server's 
+			 * public key for key exchange.
+			 */
 			if (s->s3->tmp.use_rsa_tmp
+			    || (l & SSL_kECDHE)
 			    || (l & (SSL_DH|SSL_kFZA))
 			    || ((l & SSL_kRSA)
 				&& (s->cert->pkeys[SSL_PKEY_RSA_ENC].privatekey == NULL
@@ -446,19 +446,33 @@ int ssl3_accept(SSL *s)
 		case SSL3_ST_SR_KEY_EXCH_A:
 		case SSL3_ST_SR_KEY_EXCH_B:
 			ret=ssl3_get_client_key_exchange(s);
-			if (ret <= 0) goto end;
-			s->state=SSL3_ST_SR_CERT_VRFY_A;
-			s->init_num=0;
-
-			/* We need to get hashes here so if there is
-			 * a client cert, it can be verified */ 
-			s->method->ssl3_enc->cert_verify_mac(s,
-				&(s->s3->finish_dgst1),
-				&(s->s3->tmp.cert_verify_md[0]));
-			s->method->ssl3_enc->cert_verify_mac(s,
-				&(s->s3->finish_dgst2),
-				&(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]));
+			if (ret <= 0) 
+				goto end;
+			if (ret == 2)
+				{
+				/* For the ECDH ciphersuites when
+				 * the client sends its ECDH pub key in
+				 * a certificate, the CertificateVerify
+				 * message is not sent.
+				 */
+				s->state=SSL3_ST_SR_FINISHED_A;
+				s->init_num = 0;
+				}
+			else   
+				{
+				s->state=SSL3_ST_SR_CERT_VRFY_A;
+				s->init_num=0;
 
+				/* We need to get hashes here so if there is
+				 * a client cert, it can be verified
+				 */ 
+				s->method->ssl3_enc->cert_verify_mac(s,
+				    &(s->s3->finish_dgst1),
+				    &(s->s3->tmp.cert_verify_md[0]));
+				s->method->ssl3_enc->cert_verify_mac(s,
+				    &(s->s3->finish_dgst2),
+				    &(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]));
+				}
 			break;
 
 		case SSL3_ST_SR_CERT_VRFY_A:
@@ -589,7 +603,7 @@ end:
 	return(ret);
 	}
 
-static int ssl3_send_hello_request(SSL *s)
+int ssl3_send_hello_request(SSL *s)
 	{
 	unsigned char *p;
 
@@ -611,14 +625,14 @@ static int ssl3_send_hello_request(SSL *s)
 	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
 	}
 
-static int ssl3_check_client_hello(SSL *s)
+int ssl3_check_client_hello(SSL *s)
 	{
 	int ok;
 	long n;
 
 	/* this function is called when we really expect a Certificate message,
 	 * so permit appropriate message length */
-	n=ssl3_get_message(s,
+	n=s->method->ssl_get_message(s,
 		SSL3_ST_SR_CERT_A,
 		SSL3_ST_SR_CERT_B,
 		-1,
@@ -644,14 +658,17 @@ static int ssl3_check_client_hello(SSL *s)
 	return 1;
 }
 
-static int ssl3_get_client_hello(SSL *s)
+int ssl3_get_client_hello(SSL *s)
 	{
 	int i,j,ok,al,ret= -1;
+	unsigned int cookie_len;
 	long n;
 	unsigned long id;
 	unsigned char *p,*d,*q;
 	SSL_CIPHER *c;
+#ifndef OPENSSL_NO_COMP
 	SSL_COMP *comp=NULL;
+#endif
 	STACK_OF(SSL_CIPHER) *ciphers=NULL;
 
 	/* We do this so that we will respond with our native type.
@@ -665,7 +682,7 @@ static int ssl3_get_client_hello(SSL *s)
 		s->first_packet=1;
 		s->state=SSL3_ST_SR_CLNT_HELLO_B;
 		}
-	n=ssl3_get_message(s,
+	n=s->method->ssl_get_message(s,
 		SSL3_ST_SR_CLNT_HELLO_B,
 		SSL3_ST_SR_CLNT_HELLO_C,
 		SSL3_MT_CLIENT_HELLO,
@@ -730,6 +747,68 @@ static int ssl3_get_client_hello(SSL *s)
 		}
 
 	p+=j;
+
+	if (SSL_version(s) == DTLS1_VERSION)
+		{
+		/* cookie stuff */
+		cookie_len = *(p++);
+
+		if ( (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE) &&
+			s->d1->send_cookie == 0)
+			{
+			/* HelloVerifyMessage has already been sent */
+			if ( cookie_len != s->d1->cookie_len)
+				{
+				al = SSL_AD_HANDSHAKE_FAILURE;
+				SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_COOKIE_MISMATCH);
+				goto f_err;
+				}
+			}
+
+		/* 
+		 * The ClientHello may contain a cookie even if the
+		 * HelloVerify message has not been sent--make sure that it
+		 * does not cause an overflow.
+		 */
+		if ( cookie_len > sizeof(s->d1->rcvd_cookie))
+			{
+			/* too much data */
+			al = SSL_AD_DECODE_ERROR;
+			SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, SSL_R_COOKIE_MISMATCH);
+			goto f_err;
+			}
+
+		/* verify the cookie if appropriate option is set. */
+		if ( (SSL_get_options(s) & SSL_OP_COOKIE_EXCHANGE) &&
+			cookie_len > 0)
+			{
+			memcpy(s->d1->rcvd_cookie, p, cookie_len);
+
+			if ( s->ctx->app_verify_cookie_cb != NULL)
+				{
+				if ( s->ctx->app_verify_cookie_cb(s, s->d1->rcvd_cookie,
+					cookie_len) == 0)
+					{
+					al=SSL_AD_HANDSHAKE_FAILURE;
+					SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, 
+						SSL_R_COOKIE_MISMATCH);
+					goto f_err;
+					}
+				/* else cookie verification succeeded */
+				}
+			else if ( memcmp(s->d1->rcvd_cookie, s->d1->cookie, 
+						  s->d1->cookie_len) != 0) /* default verification */
+				{
+					al=SSL_AD_HANDSHAKE_FAILURE;
+					SSLerr(SSL_F_SSL3_GET_CLIENT_HELLO, 
+						SSL_R_COOKIE_MISMATCH);
+					goto f_err;
+				}
+			}
+
+		p += cookie_len;
+		}
+
 	n2s(p,i);
 	if ((i == 0) && (j != 0))
 		{
@@ -779,8 +858,7 @@ static int ssl3_get_client_hello(SSL *s)
 			if ((s->options & SSL_OP_NETSCAPE_REUSE_CIPHER_CHANGE_BUG) && (sk_SSL_CIPHER_num(ciphers) == 1))
 				{
 				/* Very bad for multi-threading.... */
-				s->session->cipher=sk_SSL_CIPHER_value(ciphers,
-								       0);
+				s->session->cipher=sk_SSL_CIPHER_value(ciphers, 0);
 				}
 			else
 				{
@@ -821,6 +899,7 @@ static int ssl3_get_client_hello(SSL *s)
 	 * options, we will now look for them.  We have i-1 compression
 	 * algorithms from the client, starting at q. */
 	s->s3->tmp.new_compression=NULL;
+#ifndef OPENSSL_NO_COMP
 	if (s->ctx->comp_methods != NULL)
 		{ /* See if we have a match */
 		int m,nn,o,v,done=0;
@@ -845,6 +924,7 @@ static int ssl3_get_client_hello(SSL *s)
 		else
 			comp=NULL;
 		}
+#endif
 
 	/* TLS does not mind if there is extra stuff */
 #if 0   /* SSL 3.0 does not mind either, so we should disable this test
@@ -868,7 +948,11 @@ static int ssl3_get_client_hello(SSL *s)
 
 	if (!s->hit)
 		{
+#ifdef OPENSSL_NO_COMP
+		s->session->compress_meth=0;
+#else
 		s->session->compress_meth=(comp == NULL)?0:comp->id;
+#endif
 		if (s->session->ciphers != NULL)
 			sk_SSL_CIPHER_free(s->session->ciphers);
 		s->session->ciphers=ciphers;
@@ -943,7 +1027,7 @@ err:
 	return(ret);
 	}
 
-static int ssl3_send_server_hello(SSL *s)
+int ssl3_send_server_hello(SSL *s)
 	{
 	unsigned char *buf;
 	unsigned char *p,*d;
@@ -954,9 +1038,9 @@ static int ssl3_send_server_hello(SSL *s)
 		{
 		buf=(unsigned char *)s->init_buf->data;
 		p=s->s3->server_random;
-		Time=time(NULL);			/* Time */
+		Time=(unsigned long)time(NULL);			/* Time */
 		l2n(Time,p);
-		if(RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-sizeof(Time)) <= 0)
+		if (RAND_pseudo_bytes(p,SSL3_RANDOM_SIZE-4) <= 0)
 			return -1;
 		/* Do the message type and length last */
 		d=p= &(buf[4]);
@@ -980,7 +1064,7 @@ static int ssl3_send_server_hello(SSL *s)
 			s->session->session_id_length=0;
 
 		sl=s->session->session_id_length;
-		if (sl > sizeof s->session->session_id)
+		if (sl > (int)sizeof(s->session->session_id))
 			{
 			SSLerr(SSL_F_SSL3_SEND_SERVER_HELLO, ERR_R_INTERNAL_ERROR);
 			return -1;
@@ -994,10 +1078,14 @@ static int ssl3_send_server_hello(SSL *s)
 		p+=i;
 
 		/* put the compression method */
+#ifdef OPENSSL_NO_COMP
+			*(p++)=0;
+#else
 		if (s->s3->tmp.new_compression == NULL)
 			*(p++)=0;
 		else
 			*(p++)=s->s3->tmp.new_compression->id;
+#endif
 
 		/* do the header */
 		l=(p-d);
@@ -1015,7 +1103,7 @@ static int ssl3_send_server_hello(SSL *s)
 	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
 	}
 
-static int ssl3_send_server_done(SSL *s)
+int ssl3_send_server_done(SSL *s)
 	{
 	unsigned char *p;
 
@@ -1039,7 +1127,7 @@ static int ssl3_send_server_done(SSL *s)
 	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
 	}
 
-static int ssl3_send_server_key_exchange(SSL *s)
+int ssl3_send_server_key_exchange(SSL *s)
 	{
 #ifndef OPENSSL_NO_RSA
 	unsigned char *q;
@@ -1051,6 +1139,13 @@ static int ssl3_send_server_key_exchange(SSL *s)
 #ifndef OPENSSL_NO_DH
 	DH *dh=NULL,*dhp;
 #endif
+#ifndef OPENSSL_NO_ECDH
+	EC_KEY *ecdh=NULL, *ecdhp;
+	unsigned char *encodedPoint = NULL;
+	int encodedlen = 0;
+	int curve_id = 0;
+	BN_CTX *bn_ctx = NULL; 
+#endif
 	EVP_PKEY *pkey;
 	unsigned char *p,*d;
 	int al,i;
@@ -1159,6 +1254,134 @@ static int ssl3_send_server_key_exchange(SSL *s)
 			}
 		else 
 #endif
+#ifndef OPENSSL_NO_ECDH
+			if (type & SSL_kECDHE)
+			{
+			const EC_GROUP *group;
+
+			ecdhp=cert->ecdh_tmp;
+			if ((ecdhp == NULL) && (s->cert->ecdh_tmp_cb != NULL))
+				{
+				ecdhp=s->cert->ecdh_tmp_cb(s,
+				      SSL_C_IS_EXPORT(s->s3->tmp.new_cipher),
+				      SSL_C_EXPORT_PKEYLENGTH(s->s3->tmp.new_cipher));
+				}
+			if (ecdhp == NULL)
+				{
+				al=SSL_AD_HANDSHAKE_FAILURE;
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
+				goto f_err;
+				}
+
+			if (s->s3->tmp.ecdh != NULL)
+				{
+				EC_KEY_free(s->s3->tmp.ecdh); 
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE, ERR_R_INTERNAL_ERROR);
+				goto err;
+				}
+
+			/* Duplicate the ECDH structure. */
+			if (ecdhp == NULL)
+				{
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+				goto err;
+				}
+			if (!EC_KEY_up_ref(ecdhp))
+				{
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+				goto err;
+				}
+			ecdh = ecdhp;
+
+			s->s3->tmp.ecdh=ecdh;
+			if ((EC_KEY_get0_public_key(ecdh) == NULL) ||
+			    (EC_KEY_get0_private_key(ecdh) == NULL) ||
+			    (s->options & SSL_OP_SINGLE_ECDH_USE))
+				{
+				if(!EC_KEY_generate_key(ecdh))
+				    {
+				    SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+				    goto err;
+				    }
+				}
+
+			if (((group = EC_KEY_get0_group(ecdh)) == NULL) ||
+			    (EC_KEY_get0_public_key(ecdh)  == NULL) ||
+			    (EC_KEY_get0_private_key(ecdh) == NULL))
+				{
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+				goto err;
+				}
+
+			if (SSL_C_IS_EXPORT(s->s3->tmp.new_cipher) &&
+			    (EC_GROUP_get_degree(group) > 163)) 
+				{
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_ECGROUP_TOO_LARGE_FOR_CIPHER);
+				goto err;
+				}
+
+			/* XXX: For now, we only support ephemeral ECDH
+			 * keys over named (not generic) curves. For 
+			 * supported named curves, curve_id is non-zero.
+			 */
+			if ((curve_id = 
+			    nid2curve_id(EC_GROUP_get_curve_name(group)))
+			    == 0)
+				{
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNSUPPORTED_ELLIPTIC_CURVE);
+				goto err;
+				}
+
+			/* Encode the public key.
+			 * First check the size of encoding and
+			 * allocate memory accordingly.
+			 */
+			encodedlen = EC_POINT_point2oct(group, 
+			    EC_KEY_get0_public_key(ecdh),
+			    POINT_CONVERSION_UNCOMPRESSED, 
+			    NULL, 0, NULL);
+
+			encodedPoint = (unsigned char *) 
+			    OPENSSL_malloc(encodedlen*sizeof(unsigned char)); 
+			bn_ctx = BN_CTX_new();
+			if ((encodedPoint == NULL) || (bn_ctx == NULL))
+				{
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_MALLOC_FAILURE);
+				goto err;
+				}
+
+
+			encodedlen = EC_POINT_point2oct(group, 
+			    EC_KEY_get0_public_key(ecdh), 
+			    POINT_CONVERSION_UNCOMPRESSED, 
+			    encodedPoint, encodedlen, bn_ctx);
+
+			if (encodedlen == 0) 
+				{
+				SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_R_ECDH_LIB);
+				goto err;
+				}
+
+			BN_CTX_free(bn_ctx);  bn_ctx=NULL;
+
+			/* XXX: For now, we only support named (not 
+			 * generic) curves in ECDH ephemeral key exchanges.
+			 * In this situation, we need four additional bytes
+			 * to encode the entire ServerECDHParams
+			 * structure. 
+			 */
+			n = 4 + encodedlen;
+
+			/* We'll generate the serverKeyExchange message
+			 * explicitly so we can set these to NULLs
+			 */
+			r[0]=NULL;
+			r[1]=NULL;
+			r[2]=NULL;
+			r[3]=NULL;
+			}
+		else 
+#endif /* !OPENSSL_NO_ECDH */
 			{
 			al=SSL_AD_HANDSHAKE_FAILURE;
 			SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,SSL_R_UNKNOWN_KEY_EXCHANGE_TYPE);
@@ -1201,6 +1424,31 @@ static int ssl3_send_server_key_exchange(SSL *s)
 			p+=nr[i];
 			}
 
+#ifndef OPENSSL_NO_ECDH
+		if (type & SSL_kECDHE) 
+			{
+			/* XXX: For now, we only support named (not generic) curves.
+			 * In this situation, the serverKeyExchange message has:
+			 * [1 byte CurveType], [2 byte CurveName]
+			 * [1 byte length of encoded point], followed by
+			 * the actual encoded point itself
+			 */
+			*p = NAMED_CURVE_TYPE;
+			p += 1;
+			*p = 0;
+			p += 1;
+			*p = curve_id;
+			p += 1;
+			*p = encodedlen;
+			p += 1;
+			memcpy((unsigned char*)p, 
+			    (unsigned char *)encodedPoint, 
+			    encodedlen);
+			OPENSSL_free(encodedPoint);
+			p += encodedlen;
+			}
+#endif
+
 		/* not anonymous */
 		if (pkey != NULL)
 			{
@@ -1218,16 +1466,8 @@ static int ssl3_send_server_key_exchange(SSL *s)
 					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,&(d[4]),n);
-#ifdef OPENSSL_FIPS
-					if(s->version == TLS1_VERSION && num == 2)
-						FIPS_allow_md5(1);
-#endif
 					EVP_DigestFinal_ex(&md_ctx,q,
 						(unsigned int *)&i);
-#ifdef OPENSSL_FIPS
-					if(s->version == TLS1_VERSION && num == 2)
-						FIPS_allow_md5(0);
-#endif
 					q+=i;
 					j+=i;
 					}
@@ -1261,6 +1501,25 @@ static int ssl3_send_server_key_exchange(SSL *s)
 				}
 			else
 #endif
+#if !defined(OPENSSL_NO_ECDSA)
+				if (pkey->type == EVP_PKEY_EC)
+				{
+				/* let's do ECDSA */
+				EVP_SignInit_ex(&md_ctx,EVP_ecdsa(), NULL);
+				EVP_SignUpdate(&md_ctx,&(s->s3->client_random[0]),SSL3_RANDOM_SIZE);
+				EVP_SignUpdate(&md_ctx,&(s->s3->server_random[0]),SSL3_RANDOM_SIZE);
+				EVP_SignUpdate(&md_ctx,&(d[4]),n);
+				if (!EVP_SignFinal(&md_ctx,&(p[2]),
+					(unsigned int *)&i,pkey))
+					{
+					SSLerr(SSL_F_SSL3_SEND_SERVER_KEY_EXCHANGE,ERR_LIB_ECDSA);
+					goto err;
+					}
+				s2n(i,p);
+				n+=i+2;
+				}
+			else
+#endif
 				{
 				/* Is this error check actually needed? */
 				al=SSL_AD_HANDSHAKE_FAILURE;
@@ -1284,11 +1543,15 @@ static int ssl3_send_server_key_exchange(SSL *s)
 f_err:
 	ssl3_send_alert(s,SSL3_AL_FATAL,al);
 err:
+#ifndef OPENSSL_NO_ECDH
+	if (encodedPoint != NULL) OPENSSL_free(encodedPoint);
+	BN_CTX_free(bn_ctx);
+#endif
 	EVP_MD_CTX_cleanup(&md_ctx);
 	return(-1);
 	}
 
-static int ssl3_send_certificate_request(SSL *s)
+int ssl3_send_certificate_request(SSL *s)
 	{
 	unsigned char *p,*d;
 	int i,j,nl,off,n;
@@ -1377,7 +1640,7 @@ err:
 	return(-1);
 	}
 
-static int ssl3_get_client_key_exchange(SSL *s)
+int ssl3_get_client_key_exchange(SSL *s)
 	{
 	int i,al,ok;
 	long n;
@@ -1395,7 +1658,14 @@ static int ssl3_get_client_key_exchange(SSL *s)
         KSSL_ERR kssl_err;
 #endif /* OPENSSL_NO_KRB5 */
 
-	n=ssl3_get_message(s,
+#ifndef OPENSSL_NO_ECDH
+	EC_KEY *srvr_ecdh = NULL;
+	EVP_PKEY *clnt_pub_pkey = NULL;
+	EC_POINT *clnt_ecpoint = NULL;
+	BN_CTX *bn_ctx = NULL; 
+#endif
+
+	n=s->method->ssl_get_message(s,
 		SSL3_ST_SR_KEY_EXCH_A,
 		SSL3_ST_SR_KEY_EXCH_B,
 		SSL3_MT_CLIENT_KEY_EXCHANGE,
@@ -1501,7 +1771,7 @@ static int ssl3_get_client_key_exchange(SSL *s)
 			i = SSL_MAX_MASTER_KEY_LENGTH;
 			p[0] = s->client_version >> 8;
 			p[1] = s->client_version & 0xff;
-			if(RAND_pseudo_bytes(p+2, i-2) <= 0)  /* should be RAND_bytes, but we cannot work around a failure */
+			if (RAND_pseudo_bytes(p+2, i-2) <= 0) /* should be RAND_bytes, but we cannot work around a failure */
 				goto err;
 			}
 	
@@ -1600,7 +1870,7 @@ static int ssl3_get_client_key_exchange(SSL *s)
 		n2s(p,i);
 		enc_ticket.length = i;
 
-		if (n < enc_ticket.length + 6)
+		if (n < (int)enc_ticket.length + 6)
 			{
 			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
 				SSL_R_DATA_LENGTH_TOO_LONG);
@@ -1613,7 +1883,7 @@ static int ssl3_get_client_key_exchange(SSL *s)
 		n2s(p,i);
 		authenticator.length = i;
 
-		if (n < enc_ticket.length + authenticator.length + 6)
+		if (n < (int)(enc_ticket.length + authenticator.length) + 6)
 			{
 			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
 				SSL_R_DATA_LENGTH_TOO_LONG);
@@ -1638,8 +1908,8 @@ static int ssl3_get_client_key_exchange(SSL *s)
 			goto err;
 			}
 
-		if (n != enc_ticket.length + authenticator.length +
-						enc_pms.length + 6)
+		if (n != (long)(enc_ticket.length + authenticator.length +
+						enc_pms.length + 6))
 			{
 			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
 				SSL_R_DATA_LENGTH_TOO_LONG);
@@ -1655,7 +1925,7 @@ static int ssl3_get_client_key_exchange(SSL *s)
                         if (kssl_err.text)
                                 printf("kssl_err text= %s\n", kssl_err.text);
 #endif	/* KSSL_DEBUG */
-                        SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+                        SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
                                 kssl_err.reason);
                         goto err;
                         }
@@ -1672,14 +1942,14 @@ static int ssl3_get_client_key_exchange(SSL *s)
                         if (kssl_err.text)
                                 printf("kssl_err text= %s\n", kssl_err.text);
 #endif	/* KSSL_DEBUG */
-                        SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE,
+                        SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
                                 kssl_err.reason);
                         goto err;
 			}
 
 		if ((krb5rc = kssl_validate_times(authtime, &ttimes)) != 0)
 			{
-			SSLerr(SSL_F_SSL3_SEND_CLIENT_KEY_EXCHANGE, krb5rc);
+			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, krb5rc);
                         goto err;
 			}
 
@@ -1750,6 +2020,156 @@ static int ssl3_get_client_key_exchange(SSL *s)
                 }
 	else
 #endif	/* OPENSSL_NO_KRB5 */
+
+#ifndef OPENSSL_NO_ECDH
+		if ((l & SSL_kECDH) || (l & SSL_kECDHE))
+		{
+		int ret = 1;
+		int field_size = 0;
+		const EC_KEY   *tkey;
+		const EC_GROUP *group;
+		const BIGNUM *priv_key;
+
+                /* initialize structures for server's ECDH key pair */
+		if ((srvr_ecdh = EC_KEY_new()) == NULL) 
+			{
+                	SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+			    ERR_R_MALLOC_FAILURE);
+                	goto err;
+			}
+
+		/* Let's get server private key and group information */
+		if (l & SSL_kECDH) 
+			{ 
+                        /* use the certificate */
+			tkey = s->cert->key->privatekey->pkey.ec;
+			}
+		else
+			{
+			/* use the ephermeral values we saved when
+			 * generating the ServerKeyExchange msg.
+			 */
+			tkey = s->s3->tmp.ecdh;
+			}
+
+		group    = EC_KEY_get0_group(tkey);
+		priv_key = EC_KEY_get0_private_key(tkey);
+
+		if (!EC_KEY_set_group(srvr_ecdh, group) ||
+		    !EC_KEY_set_private_key(srvr_ecdh, priv_key))
+			{
+			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+			       ERR_R_EC_LIB);
+			goto err;
+			}
+
+		/* Let's get client's public key */
+		if ((clnt_ecpoint = EC_POINT_new(group)) == NULL)
+			{
+			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+			    ERR_R_MALLOC_FAILURE);
+			goto err;
+			}
+
+                if (n == 0L) 
+                        {
+			/* Client Publickey was in Client Certificate */
+
+			 if (l & SSL_kECDHE) 
+				 {
+				 al=SSL_AD_HANDSHAKE_FAILURE;
+				 SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,SSL_R_MISSING_TMP_ECDH_KEY);
+				 goto f_err;
+				 }
+                        if (((clnt_pub_pkey=X509_get_pubkey(s->session->peer))
+			    == NULL) || 
+			    (clnt_pub_pkey->type != EVP_PKEY_EC))
+                        	{
+				/* XXX: For now, we do not support client
+				 * authentication using ECDH certificates
+				 * so this branch (n == 0L) of the code is
+				 * never executed. When that support is
+				 * added, we ought to ensure the key 
+				 * received in the certificate is 
+				 * authorized for key agreement.
+				 * ECDH_compute_key implicitly checks that
+				 * the two ECDH shares are for the same
+				 * group.
+				 */
+                           	al=SSL_AD_HANDSHAKE_FAILURE;
+                           	SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+				    SSL_R_UNABLE_TO_DECODE_ECDH_CERTS);
+                           	goto f_err;
+                           	}
+
+			if (EC_POINT_copy(clnt_ecpoint,
+			    EC_KEY_get0_public_key(clnt_pub_pkey->pkey.ec)) == 0)
+				{
+				SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+					ERR_R_EC_LIB);
+				goto err;
+				}
+                        ret = 2; /* Skip certificate verify processing */
+                        }
+                else
+                        {
+			/* Get client's public key from encoded point
+			 * in the ClientKeyExchange message.
+			 */
+			if ((bn_ctx = BN_CTX_new()) == NULL)
+				{
+				SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+				    ERR_R_MALLOC_FAILURE);
+				goto err;
+				}
+
+                        /* Get encoded point length */
+                        i = *p; 
+			p += 1;
+                        if (EC_POINT_oct2point(group, 
+			    clnt_ecpoint, p, i, bn_ctx) == 0)
+				{
+				SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+				    ERR_R_EC_LIB);
+				goto err;
+				}
+                        /* p is pointing to somewhere in the buffer
+                         * currently, so set it to the start 
+                         */ 
+                        p=(unsigned char *)s->init_buf->data;
+                        }
+
+		/* Compute the shared pre-master secret */
+		field_size = EC_GROUP_get_degree(group);
+		if (field_size <= 0)
+			{
+			SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE, 
+			       ERR_R_ECDH_LIB);
+			goto err;
+			}
+		i = ECDH_compute_key(p, (field_size+7)/8, clnt_ecpoint, srvr_ecdh, NULL);
+                if (i <= 0)
+                        {
+                        SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
+			    ERR_R_ECDH_LIB);
+                        goto err;
+                        }
+
+		EVP_PKEY_free(clnt_pub_pkey);
+		EC_POINT_free(clnt_ecpoint);
+		if (srvr_ecdh != NULL) 
+			EC_KEY_free(srvr_ecdh);
+		BN_CTX_free(bn_ctx);
+
+		/* Compute the master secret */
+                s->session->master_key_length = s->method->ssl3_enc-> \
+		    generate_master_secret(s, s->session->master_key, p, i);
+		
+                OPENSSL_cleanse(p, i);
+                return (ret);
+		}
+	else
+#endif
 		{
 		al=SSL_AD_HANDSHAKE_FAILURE;
 		SSLerr(SSL_F_SSL3_GET_CLIENT_KEY_EXCHANGE,
@@ -1760,13 +2180,20 @@ static int ssl3_get_client_key_exchange(SSL *s)
 	return(1);
 f_err:
 	ssl3_send_alert(s,SSL3_AL_FATAL,al);
-#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_RSA)
+#if !defined(OPENSSL_NO_DH) || !defined(OPENSSL_NO_RSA) || !defined(OPENSSL_NO_ECDH)
 err:
 #endif
+#ifndef OPENSSL_NO_ECDH
+	EVP_PKEY_free(clnt_pub_pkey);
+	EC_POINT_free(clnt_ecpoint);
+	if (srvr_ecdh != NULL) 
+		EC_KEY_free(srvr_ecdh);
+	BN_CTX_free(bn_ctx);
+#endif
 	return(-1);
 	}
 
-static int ssl3_get_cert_verify(SSL *s)
+int ssl3_get_cert_verify(SSL *s)
 	{
 	EVP_PKEY *pkey=NULL;
 	unsigned char *p;
@@ -1775,7 +2202,7 @@ static int ssl3_get_cert_verify(SSL *s)
 	int type=0,i,j;
 	X509 *peer;
 
-	n=ssl3_get_message(s,
+	n=s->method->ssl_get_message(s,
 		SSL3_ST_SR_CERT_VRFY_A,
 		SSL3_ST_SR_CERT_VRFY_B,
 		-1,
@@ -1886,6 +2313,23 @@ static int ssl3_get_cert_verify(SSL *s)
 		}
 	else
 #endif
+#ifndef OPENSSL_NO_ECDSA
+		if (pkey->type == EVP_PKEY_EC)
+		{
+		j=ECDSA_verify(pkey->save_type,
+			&(s->s3->tmp.cert_verify_md[MD5_DIGEST_LENGTH]),
+			SHA_DIGEST_LENGTH,p,i,pkey->pkey.ec);
+		if (j <= 0)
+			{
+			/* bad signature */
+			al=SSL_AD_DECRYPT_ERROR;
+			SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,
+			    SSL_R_BAD_ECDSA_SIGNATURE);
+			goto f_err;
+			}
+		}
+	else
+#endif
 		{
 		SSLerr(SSL_F_SSL3_GET_CERT_VERIFY,ERR_R_INTERNAL_ERROR);
 		al=SSL_AD_UNSUPPORTED_CERTIFICATE;
@@ -1904,15 +2348,16 @@ end:
 	return(ret);
 	}
 
-static int ssl3_get_client_certificate(SSL *s)
+int ssl3_get_client_certificate(SSL *s)
 	{
 	int i,ok,al,ret= -1;
 	X509 *x=NULL;
 	unsigned long l,nc,llen,n;
-	unsigned char *p,*d,*q;
+	const unsigned char *p,*q;
+	unsigned char *d;
 	STACK_OF(X509) *sk=NULL;
 
-	n=ssl3_get_message(s,
+	n=s->method->ssl_get_message(s,
 		SSL3_ST_SR_CERT_A,
 		SSL3_ST_SR_CERT_B,
 		-1,
@@ -1947,7 +2392,7 @@ static int ssl3_get_client_certificate(SSL *s)
 		SSLerr(SSL_F_SSL3_GET_CLIENT_CERTIFICATE,SSL_R_WRONG_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)
 		{
@@ -2086,3 +2531,67 @@ int ssl3_send_server_certificate(SSL *s)
 	/* SSL3_ST_SW_CERT_B */
 	return(ssl3_do_write(s,SSL3_RT_HANDSHAKE));
 	}
+
+
+#ifndef OPENSSL_NO_ECDH
+/* This is the complement of curve_id2nid in s3_clnt.c. */
+static int nid2curve_id(int nid)
+{
+	/* ECC curves from draft-ietf-tls-ecc-01.txt (Mar 15, 2001)
+	 * (no changes in draft-ietf-tls-ecc-03.txt [June 2003]) */
+	switch (nid) {
+	case NID_sect163k1: /* sect163k1 (1) */
+		return 1;
+	case NID_sect163r1: /* sect163r1 (2) */
+		return 2;
+	case NID_sect163r2: /* sect163r2 (3) */
+		return 3;
+	case NID_sect193r1: /* sect193r1 (4) */ 
+		return 4;
+	case NID_sect193r2: /* sect193r2 (5) */ 
+		return 5;
+	case NID_sect233k1: /* sect233k1 (6) */
+		return 6;
+	case NID_sect233r1: /* sect233r1 (7) */ 
+		return 7;
+	case NID_sect239k1: /* sect239k1 (8) */ 
+		return 8;
+	case NID_sect283k1: /* sect283k1 (9) */
+		return 9;
+	case NID_sect283r1: /* sect283r1 (10) */ 
+		return 10;
+	case NID_sect409k1: /* sect409k1 (11) */ 
+		return 11;
+	case NID_sect409r1: /* sect409r1 (12) */
+		return 12;
+	case NID_sect571k1: /* sect571k1 (13) */ 
+		return 13;
+	case NID_sect571r1: /* sect571r1 (14) */ 
+		return 14;
+	case NID_secp160k1: /* secp160k1 (15) */
+		return 15;
+	case NID_secp160r1: /* secp160r1 (16) */ 
+		return 16;
+	case NID_secp160r2: /* secp160r2 (17) */ 
+		return 17;
+	case NID_secp192k1: /* secp192k1 (18) */
+		return 18;
+	case NID_X9_62_prime192v1: /* secp192r1 (19) */ 
+		return 19;
+	case NID_secp224k1: /* secp224k1 (20) */ 
+		return 20;
+	case NID_secp224r1: /* secp224r1 (21) */
+		return 21;
+	case NID_secp256k1: /* secp256k1 (22) */ 
+		return 22;
+	case NID_X9_62_prime256v1: /* secp256r1 (23) */ 
+		return 23;
+	case NID_secp384r1: /* secp384r1 (24) */
+		return 24;
+	case NID_secp521r1:  /* secp521r1 (25) */	
+		return 25;
+	default:
+		return 0;
+	}
+}
+#endif