Initial import

1 files changed, 849 insertions, 0 deletions

diff --git a/openssl/ssl/s3_enc.c b/openssl/ssl/s3_enc.c
new file mode 100644
index 00000000..b1459707
--- /dev/null
+++ b/openssl/ssl/s3_enc.c
@@ -0,0 +1,849 @@
+/* ssl/s3_enc.c */
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
+ * All rights reserved.
+ *
+ * This package is an SSL implementation written
+ * by Eric Young (eay@cryptsoft.com).
+ * The implementation was written so as to conform with Netscapes SSL.
+ * 
+ * This library is free for commercial and non-commercial use as long as
+ * the following conditions are aheared to.  The following conditions
+ * apply to all code found in this distribution, be it the RC4, RSA,
+ * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
+ * included with this distribution is covered by the same copyright terms
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
+ * 
+ * Copyright remains Eric Young's, and as such any Copyright notices in
+ * the code are not to be removed.
+ * If this package is used in a product, Eric Young should be given attribution
+ * as the author of the parts of the library used.
+ * This can be in the form of a textual message at program startup or
+ * in documentation (online or textual) provided with the package.
+ * 
+ * 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 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 acknowledgement:
+ *    "This product includes cryptographic software written by
+ *     Eric Young (eay@cryptsoft.com)"
+ *    The word 'cryptographic' can be left out if the rouines from the library
+ *    being used are not cryptographic related :-).
+ * 4. If you include any Windows specific code (or a derivative thereof) from 
+ *    the apps directory (application code) you must include an acknowledgement:
+ *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
+ * 
+ * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
+ * ANY EXPRESS 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 AUTHOR OR 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.
+ * 
+ * The licence and distribution terms for any publically available version or
+ * derivative of this code cannot be changed.  i.e. this code cannot simply be
+ * copied and put under another distribution licence
+ * [including the GNU Public Licence.]
+ */
+/* ====================================================================
+ * Copyright (c) 1998-2007 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 2005 Nokia. All rights reserved.
+ *
+ * The portions of the attached software ("Contribution") is developed by
+ * Nokia Corporation and is licensed pursuant to the OpenSSL open source
+ * license.
+ *
+ * The Contribution, originally written by Mika Kousa and Pasi Eronen of
+ * Nokia Corporation, consists of the "PSK" (Pre-Shared Key) ciphersuites
+ * support (see RFC 4279) to OpenSSL.
+ *
+ * No patent licenses or other rights except those expressly stated in
+ * the OpenSSL open source license shall be deemed granted or received
+ * expressly, by implication, estoppel, or otherwise.
+ *
+ * No assurances are provided by Nokia that the Contribution does not
+ * infringe the patent or other intellectual property rights of any third
+ * party or that the license provides you with all the necessary rights
+ * to make use of the Contribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND. IN
+ * ADDITION TO THE DISCLAIMERS INCLUDED IN THE LICENSE, NOKIA
+ * SPECIFICALLY DISCLAIMS ANY LIABILITY FOR CLAIMS BROUGHT BY YOU OR ANY
+ * OTHER ENTITY BASED ON INFRINGEMENT OF INTELLECTUAL PROPERTY RIGHTS OR
+ * OTHERWISE.
+ */
+
+#include <stdio.h>
+#include "ssl_locl.h"
+#include <openssl/evp.h>
+#include <openssl/md5.h>
+
+static unsigned char ssl3_pad_1[48]={
+	0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+	0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+	0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+	0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+	0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36,
+	0x36,0x36,0x36,0x36,0x36,0x36,0x36,0x36 };
+
+static unsigned char ssl3_pad_2[48]={
+	0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
+	0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
+	0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
+	0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
+	0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,
+	0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c,0x5c };
+static int ssl3_handshake_mac(SSL *s, int md_nid,
+	const char *sender, int len, unsigned char *p);
+static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num)
+	{
+	EVP_MD_CTX m5;
+	EVP_MD_CTX s1;
+	unsigned char buf[16],smd[SHA_DIGEST_LENGTH];
+	unsigned char c='A';
+	unsigned int i,j,k;
+
+#ifdef CHARSET_EBCDIC
+	c = os_toascii[c]; /*'A' in ASCII */
+#endif
+	k=0;
+	EVP_MD_CTX_init(&m5);
+	EVP_MD_CTX_init(&s1);
+	for (i=0; (int)i<num; i+=MD5_DIGEST_LENGTH)
+		{
+		k++;
+		if (k > sizeof buf)
+			{
+			/* bug: 'buf' is too small for this ciphersuite */
+			SSLerr(SSL_F_SSL3_GENERATE_KEY_BLOCK, ERR_R_INTERNAL_ERROR);
+			return 0;
+			}
+		
+		for (j=0; j<k; j++)
+			buf[j]=c;
+		c++;
+		EVP_DigestInit_ex(&s1,EVP_sha1(), NULL);
+		EVP_DigestUpdate(&s1,buf,k);
+		EVP_DigestUpdate(&s1,s->session->master_key,
+			s->session->master_key_length);
+		EVP_DigestUpdate(&s1,s->s3->server_random,SSL3_RANDOM_SIZE);
+		EVP_DigestUpdate(&s1,s->s3->client_random,SSL3_RANDOM_SIZE);
+		EVP_DigestFinal_ex(&s1,smd,NULL);
+
+		EVP_DigestInit_ex(&m5,EVP_md5(), NULL);
+		EVP_DigestUpdate(&m5,s->session->master_key,
+			s->session->master_key_length);
+		EVP_DigestUpdate(&m5,smd,SHA_DIGEST_LENGTH);
+		if ((int)(i+MD5_DIGEST_LENGTH) > num)
+			{
+			EVP_DigestFinal_ex(&m5,smd,NULL);
+			memcpy(km,smd,(num-i));
+			}
+		else
+			EVP_DigestFinal_ex(&m5,km,NULL);
+
+		km+=MD5_DIGEST_LENGTH;
+		}
+	OPENSSL_cleanse(smd,SHA_DIGEST_LENGTH);
+	EVP_MD_CTX_cleanup(&m5);
+	EVP_MD_CTX_cleanup(&s1);
+	return 1;
+	}
+
+int ssl3_change_cipher_state(SSL *s, int which)
+	{
+	unsigned char *p,*mac_secret;
+	unsigned char exp_key[EVP_MAX_KEY_LENGTH];
+	unsigned char exp_iv[EVP_MAX_IV_LENGTH];
+	unsigned char *ms,*key,*iv,*er1,*er2;
+	EVP_CIPHER_CTX *dd;
+	const EVP_CIPHER *c;
+#ifndef OPENSSL_NO_COMP
+	COMP_METHOD *comp;
+#endif
+	const EVP_MD *m;
+	EVP_MD_CTX md;
+	int is_exp,n,i,j,k,cl;
+	int reuse_dd = 0;
+
+	is_exp=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
+	c=s->s3->tmp.new_sym_enc;
+	m=s->s3->tmp.new_hash;
+	/* m == NULL will lead to a crash later */
+	OPENSSL_assert(m);
+#ifndef OPENSSL_NO_COMP
+	if (s->s3->tmp.new_compression == NULL)
+		comp=NULL;
+	else
+		comp=s->s3->tmp.new_compression->method;
+#endif
+
+	if (which & SSL3_CC_READ)
+		{
+		if (s->enc_read_ctx != NULL)
+			reuse_dd = 1;
+		else if ((s->enc_read_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
+			goto err;
+		else
+			/* make sure it's intialized in case we exit later with an error */
+			EVP_CIPHER_CTX_init(s->enc_read_ctx);
+		dd= s->enc_read_ctx;
+
+		ssl_replace_hash(&s->read_hash,m);
+#ifndef OPENSSL_NO_COMP
+		/* COMPRESS */
+		if (s->expand != NULL)
+			{
+			COMP_CTX_free(s->expand);
+			s->expand=NULL;
+			}
+		if (comp != NULL)
+			{
+			s->expand=COMP_CTX_new(comp);
+			if (s->expand == NULL)
+				{
+				SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
+				goto err2;
+				}
+			if (s->s3->rrec.comp == NULL)
+				s->s3->rrec.comp=(unsigned char *)
+					OPENSSL_malloc(SSL3_RT_MAX_PLAIN_LENGTH);
+			if (s->s3->rrec.comp == NULL)
+				goto err;
+			}
+#endif
+		memset(&(s->s3->read_sequence[0]),0,8);
+		mac_secret= &(s->s3->read_mac_secret[0]);
+		}
+	else
+		{
+		if (s->enc_write_ctx != NULL)
+			reuse_dd = 1;
+		else if ((s->enc_write_ctx=OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL)
+			goto err;
+		else
+			/* make sure it's intialized in case we exit later with an error */
+			EVP_CIPHER_CTX_init(s->enc_write_ctx);
+		dd= s->enc_write_ctx;
+		ssl_replace_hash(&s->write_hash,m);
+#ifndef OPENSSL_NO_COMP
+		/* COMPRESS */
+		if (s->compress != NULL)
+			{
+			COMP_CTX_free(s->compress);
+			s->compress=NULL;
+			}
+		if (comp != NULL)
+			{
+			s->compress=COMP_CTX_new(comp);
+			if (s->compress == NULL)
+				{
+				SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
+				goto err2;
+				}
+			}
+#endif
+		memset(&(s->s3->write_sequence[0]),0,8);
+		mac_secret= &(s->s3->write_mac_secret[0]);
+		}
+
+	if (reuse_dd)
+		EVP_CIPHER_CTX_cleanup(dd);
+
+	p=s->s3->tmp.key_block;
+	i=EVP_MD_size(m);
+	if (i < 0)
+		goto err2;
+	cl=EVP_CIPHER_key_length(c);
+	j=is_exp ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
+		 cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
+	/* Was j=(is_exp)?5:EVP_CIPHER_key_length(c); */
+	k=EVP_CIPHER_iv_length(c);
+	if (	(which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
+		(which == SSL3_CHANGE_CIPHER_SERVER_READ))
+		{
+		ms=  &(p[ 0]); n=i+i;
+		key= &(p[ n]); n+=j+j;
+		iv=  &(p[ n]); n+=k+k;
+		er1= &(s->s3->client_random[0]);
+		er2= &(s->s3->server_random[0]);
+		}
+	else
+		{
+		n=i;
+		ms=  &(p[ n]); n+=i+j;
+		key= &(p[ n]); n+=j+k;
+		iv=  &(p[ n]); n+=k;
+		er1= &(s->s3->server_random[0]);
+		er2= &(s->s3->client_random[0]);
+		}
+
+	if (n > s->s3->tmp.key_block_length)
+		{
+		SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
+		goto err2;
+		}
+
+	EVP_MD_CTX_init(&md);
+	memcpy(mac_secret,ms,i);
+	if (is_exp)
+		{
+		/* In here I set both the read and write key/iv to the
+		 * same value since only the correct one will be used :-).
+		 */
+		EVP_DigestInit_ex(&md,EVP_md5(), NULL);
+		EVP_DigestUpdate(&md,key,j);
+		EVP_DigestUpdate(&md,er1,SSL3_RANDOM_SIZE);
+		EVP_DigestUpdate(&md,er2,SSL3_RANDOM_SIZE);
+		EVP_DigestFinal_ex(&md,&(exp_key[0]),NULL);
+		key= &(exp_key[0]);
+
+		if (k > 0)
+			{
+			EVP_DigestInit_ex(&md,EVP_md5(), NULL);
+			EVP_DigestUpdate(&md,er1,SSL3_RANDOM_SIZE);
+			EVP_DigestUpdate(&md,er2,SSL3_RANDOM_SIZE);
+			EVP_DigestFinal_ex(&md,&(exp_iv[0]),NULL);
+			iv= &(exp_iv[0]);
+			}
+		}
+
+	s->session->key_arg_length=0;
+
+	EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));
+
+	OPENSSL_cleanse(&(exp_key[0]),sizeof(exp_key));
+	OPENSSL_cleanse(&(exp_iv[0]),sizeof(exp_iv));
+	EVP_MD_CTX_cleanup(&md);
+	return(1);
+err:
+	SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
+err2:
+	return(0);
+	}
+
+int ssl3_setup_key_block(SSL *s)
+	{
+	unsigned char *p;
+	const EVP_CIPHER *c;
+	const EVP_MD *hash;
+	int num;
+	int ret = 0;
+	SSL_COMP *comp;
+
+	if (s->s3->tmp.key_block_length != 0)
+		return(1);
+
+	if (!ssl_cipher_get_evp(s->session,&c,&hash,NULL,NULL,&comp))
+		{
+		SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
+		return(0);
+		}
+
+	s->s3->tmp.new_sym_enc=c;
+	s->s3->tmp.new_hash=hash;
+#ifdef OPENSSL_NO_COMP
+	s->s3->tmp.new_compression=NULL;
+#else
+	s->s3->tmp.new_compression=comp;
+#endif
+
+	num=EVP_MD_size(hash);
+	if (num < 0)
+		return 0;
+
+	num=EVP_CIPHER_key_length(c)+num+EVP_CIPHER_iv_length(c);
+	num*=2;
+
+	ssl3_cleanup_key_block(s);
+
+	if ((p=OPENSSL_malloc(num)) == NULL)
+		goto err;
+
+	s->s3->tmp.key_block_length=num;
+	s->s3->tmp.key_block=p;
+
+	ret = ssl3_generate_key_block(s,p,num);
+
+	if (!(s->options & SSL_OP_DONT_INSERT_EMPTY_FRAGMENTS))
+		{
+		/* enable vulnerability countermeasure for CBC ciphers with
+		 * known-IV problem (http://www.openssl.org/~bodo/tls-cbc.txt)
+		 */
+		s->s3->need_empty_fragments = 1;
+
+		if (s->session->cipher != NULL)
+			{
+			if (s->session->cipher->algorithm_enc == SSL_eNULL)
+				s->s3->need_empty_fragments = 0;
+			
+#ifndef OPENSSL_NO_RC4
+			if (s->session->cipher->algorithm_enc == SSL_RC4)
+				s->s3->need_empty_fragments = 0;
+#endif
+			}
+		}
+
+	return ret;
+		
+err:
+	SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
+	return(0);
+	}
+
+void ssl3_cleanup_key_block(SSL *s)
+	{
+	if (s->s3->tmp.key_block != NULL)
+		{
+		OPENSSL_cleanse(s->s3->tmp.key_block,
+			s->s3->tmp.key_block_length);
+		OPENSSL_free(s->s3->tmp.key_block);
+		s->s3->tmp.key_block=NULL;
+		}
+	s->s3->tmp.key_block_length=0;
+	}
+
+int ssl3_enc(SSL *s, int send)
+	{
+	SSL3_RECORD *rec;
+	EVP_CIPHER_CTX *ds;
+	unsigned long l;
+	int bs,i;
+	const EVP_CIPHER *enc;
+
+	if (send)
+		{
+		ds=s->enc_write_ctx;
+		rec= &(s->s3->wrec);
+		if (s->enc_write_ctx == NULL)
+			enc=NULL;
+		else
+			enc=EVP_CIPHER_CTX_cipher(s->enc_write_ctx);
+		}
+	else
+		{
+		ds=s->enc_read_ctx;
+		rec= &(s->s3->rrec);
+		if (s->enc_read_ctx == NULL)
+			enc=NULL;
+		else
+			enc=EVP_CIPHER_CTX_cipher(s->enc_read_ctx);
+		}
+
+	if ((s->session == NULL) || (ds == NULL) ||
+		(enc == NULL))
+		{
+		memmove(rec->data,rec->input,rec->length);
+		rec->input=rec->data;
+		}
+	else
+		{
+		l=rec->length;
+		bs=EVP_CIPHER_block_size(ds->cipher);
+
+		/* COMPRESS */
+
+		if ((bs != 1) && send)
+			{
+			i=bs-((int)l%bs);
+
+			/* we need to add 'i-1' padding bytes */
+			l+=i;
+			/* the last of these zero bytes will be overwritten
+			 * with the padding length. */
+			memset(&rec->input[rec->length], 0, i);
+			rec->length+=i;
+			rec->input[l-1]=(i-1);
+			}
+		
+		if (!send)
+			{
+			if (l == 0 || l%bs != 0)
+				{
+				SSLerr(SSL_F_SSL3_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
+				ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
+				return 0;
+				}
+			/* otherwise, rec->length >= bs */
+			}
+		
+		EVP_Cipher(ds,rec->data,rec->input,l);
+
+		if ((bs != 1) && !send)
+			{
+			i=rec->data[l-1]+1;
+			/* SSL 3.0 bounds the number of padding bytes by the block size;
+			 * padding bytes (except the last one) are arbitrary */
+			if (i > bs)
+				{
+				/* Incorrect padding. SSLerr() and ssl3_alert are done
+				 * by caller: we don't want to reveal whether this is
+				 * a decryption error or a MAC verification failure
+				 * (see http://www.openssl.org/~bodo/tls-cbc.txt) */
+				return -1;
+				}
+			/* now i <= bs <= rec->length */
+			rec->length-=i;
+			}
+		}
+	return(1);
+	}
+
+void ssl3_init_finished_mac(SSL *s)
+	{
+	if (s->s3->handshake_buffer) BIO_free(s->s3->handshake_buffer);
+	if (s->s3->handshake_dgst) ssl3_free_digest_list(s);
+    s->s3->handshake_buffer=BIO_new(BIO_s_mem());	
+	(void)BIO_set_close(s->s3->handshake_buffer,BIO_CLOSE);
+	}
+
+void ssl3_free_digest_list(SSL *s) 
+	{
+	int i;
+	if (!s->s3->handshake_dgst) return;
+	for (i=0;i<SSL_MAX_DIGEST;i++) 
+		{
+		if (s->s3->handshake_dgst[i])
+			EVP_MD_CTX_destroy(s->s3->handshake_dgst[i]);
+		}
+	OPENSSL_free(s->s3->handshake_dgst);
+	s->s3->handshake_dgst=NULL;
+	}	
+		
+
+
+void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len)
+	{
+	if (s->s3->handshake_buffer) 
+		{
+		BIO_write (s->s3->handshake_buffer,(void *)buf,len);
+		} 
+	else 
+		{
+		int i;
+		for (i=0;i< SSL_MAX_DIGEST;i++) 
+			{
+			if (s->s3->handshake_dgst[i]!= NULL)
+			EVP_DigestUpdate(s->s3->handshake_dgst[i],buf,len);
+			}
+		}	
+	}
+
+int ssl3_digest_cached_records(SSL *s)
+	{
+	int i;
+	long mask;
+	const EVP_MD *md;
+	long hdatalen;
+	void *hdata;
+
+	/* Allocate handshake_dgst array */
+	ssl3_free_digest_list(s);
+	s->s3->handshake_dgst = OPENSSL_malloc(SSL_MAX_DIGEST * sizeof(EVP_MD_CTX *));
+	memset(s->s3->handshake_dgst,0,SSL_MAX_DIGEST *sizeof(EVP_MD_CTX *));
+	hdatalen = BIO_get_mem_data(s->s3->handshake_buffer,&hdata);
+	if (hdatalen <= 0)
+		{
+		SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, SSL_R_BAD_HANDSHAKE_LENGTH);
+		return 0;
+		}
+
+	/* Loop through bitso of algorithm2 field and create MD_CTX-es */
+	for (i=0;ssl_get_handshake_digest(i,&mask,&md); i++) 
+		{
+		if ((mask & s->s3->tmp.new_cipher->algorithm2) && md) 
+			{
+			s->s3->handshake_dgst[i]=EVP_MD_CTX_create();
+			EVP_DigestInit_ex(s->s3->handshake_dgst[i],md,NULL);
+			EVP_DigestUpdate(s->s3->handshake_dgst[i],hdata,hdatalen);
+			} 
+		else 
+			{	
+			s->s3->handshake_dgst[i]=NULL;
+			}
+		}
+	/* Free handshake_buffer BIO */
+	BIO_free(s->s3->handshake_buffer);
+	s->s3->handshake_buffer = NULL;
+
+	return 1;
+	}
+
+int ssl3_cert_verify_mac(SSL *s, int md_nid, unsigned char *p)
+	{
+	return(ssl3_handshake_mac(s,md_nid,NULL,0,p));
+	}
+int ssl3_final_finish_mac(SSL *s, 
+	     const char *sender, int len, unsigned char *p)
+	{
+	int ret;
+	ret=ssl3_handshake_mac(s,NID_md5,sender,len,p);
+	p+=ret;
+	ret+=ssl3_handshake_mac(s,NID_sha1,sender,len,p);
+	return(ret);
+	}
+static int ssl3_handshake_mac(SSL *s, int md_nid,
+	     const char *sender, int len, unsigned char *p)
+	{
+	unsigned int ret;
+	int npad,n;
+	unsigned int i;
+	unsigned char md_buf[EVP_MAX_MD_SIZE];
+	EVP_MD_CTX ctx,*d=NULL;
+
+	if (s->s3->handshake_buffer) 
+		if (!ssl3_digest_cached_records(s))
+			return 0;
+
+	/* Search for digest of specified type in the handshake_dgst
+	 * array*/
+	for (i=0;i<SSL_MAX_DIGEST;i++) 
+		{
+		  if (s->s3->handshake_dgst[i]&&EVP_MD_CTX_type(s->s3->handshake_dgst[i])==md_nid) 
+		  	{
+		  	d=s->s3->handshake_dgst[i];
+			break;
+			}
+		}
+	if (!d) {
+		SSLerr(SSL_F_SSL3_HANDSHAKE_MAC,SSL_R_NO_REQUIRED_DIGEST);
+		return 0;
+	}	
+	EVP_MD_CTX_init(&ctx);
+	EVP_MD_CTX_copy_ex(&ctx,d);
+	n=EVP_MD_CTX_size(&ctx);
+	if (n < 0)
+		return 0;
+
+	npad=(48/n)*n;
+	if (sender != NULL)
+		EVP_DigestUpdate(&ctx,sender,len);
+	EVP_DigestUpdate(&ctx,s->session->master_key,
+		s->session->master_key_length);
+	EVP_DigestUpdate(&ctx,ssl3_pad_1,npad);
+	EVP_DigestFinal_ex(&ctx,md_buf,&i);
+
+	EVP_DigestInit_ex(&ctx,EVP_MD_CTX_md(&ctx), NULL);
+	EVP_DigestUpdate(&ctx,s->session->master_key,
+		s->session->master_key_length);
+	EVP_DigestUpdate(&ctx,ssl3_pad_2,npad);
+	EVP_DigestUpdate(&ctx,md_buf,i);
+	EVP_DigestFinal_ex(&ctx,p,&ret);
+
+	EVP_MD_CTX_cleanup(&ctx);
+
+	return((int)ret);
+	}
+
+int n_ssl3_mac(SSL *ssl, unsigned char *md, int send)
+	{
+	SSL3_RECORD *rec;
+	unsigned char *mac_sec,*seq;
+	EVP_MD_CTX md_ctx;
+	const EVP_MD_CTX *hash;
+	unsigned char *p,rec_char;
+	unsigned int md_size;
+	int npad;
+	int t;
+
+	if (send)
+		{
+		rec= &(ssl->s3->wrec);
+		mac_sec= &(ssl->s3->write_mac_secret[0]);
+		seq= &(ssl->s3->write_sequence[0]);
+		hash=ssl->write_hash;
+		}
+	else
+		{
+		rec= &(ssl->s3->rrec);
+		mac_sec= &(ssl->s3->read_mac_secret[0]);
+		seq= &(ssl->s3->read_sequence[0]);
+		hash=ssl->read_hash;
+		}
+
+	t=EVP_MD_CTX_size(hash);
+	if (t < 0)
+		return -1;
+	md_size=t;
+	npad=(48/md_size)*md_size;
+
+	/* Chop the digest off the end :-) */
+	EVP_MD_CTX_init(&md_ctx);
+
+	EVP_MD_CTX_copy_ex( &md_ctx,hash);
+	EVP_DigestUpdate(&md_ctx,mac_sec,md_size);
+	EVP_DigestUpdate(&md_ctx,ssl3_pad_1,npad);
+	EVP_DigestUpdate(&md_ctx,seq,8);
+	rec_char=rec->type;
+	EVP_DigestUpdate(&md_ctx,&rec_char,1);
+	p=md;
+	s2n(rec->length,p);
+	EVP_DigestUpdate(&md_ctx,md,2);
+	EVP_DigestUpdate(&md_ctx,rec->input,rec->length);
+	EVP_DigestFinal_ex( &md_ctx,md,NULL);
+
+	EVP_MD_CTX_copy_ex( &md_ctx,hash);
+	EVP_DigestUpdate(&md_ctx,mac_sec,md_size);
+	EVP_DigestUpdate(&md_ctx,ssl3_pad_2,npad);
+	EVP_DigestUpdate(&md_ctx,md,md_size);
+	EVP_DigestFinal_ex( &md_ctx,md,&md_size);
+
+	EVP_MD_CTX_cleanup(&md_ctx);
+
+	ssl3_record_sequence_update(seq);
+	return(md_size);
+	}
+
+void ssl3_record_sequence_update(unsigned char *seq)
+	{
+	int i;
+
+	for (i=7; i>=0; i--)
+		{
+		++seq[i];
+		if (seq[i] != 0) break; 
+		}
+	}
+
+int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
+	     int len)
+	{
+	static const unsigned char *salt[3]={
+#ifndef CHARSET_EBCDIC
+		(const unsigned char *)"A",
+		(const unsigned char *)"BB",
+		(const unsigned char *)"CCC",
+#else
+		(const unsigned char *)"\x41",
+		(const unsigned char *)"\x42\x42",
+		(const unsigned char *)"\x43\x43\x43",
+#endif
+		};
+	unsigned char buf[EVP_MAX_MD_SIZE];
+	EVP_MD_CTX ctx;
+	int i,ret=0;
+	unsigned int n;
+
+	EVP_MD_CTX_init(&ctx);
+	for (i=0; i<3; i++)
+		{
+		EVP_DigestInit_ex(&ctx,s->ctx->sha1, NULL);
+		EVP_DigestUpdate(&ctx,salt[i],strlen((const char *)salt[i]));
+		EVP_DigestUpdate(&ctx,p,len);
+		EVP_DigestUpdate(&ctx,&(s->s3->client_random[0]),
+			SSL3_RANDOM_SIZE);
+		EVP_DigestUpdate(&ctx,&(s->s3->server_random[0]),
+			SSL3_RANDOM_SIZE);
+		EVP_DigestFinal_ex(&ctx,buf,&n);
+
+		EVP_DigestInit_ex(&ctx,s->ctx->md5, NULL);
+		EVP_DigestUpdate(&ctx,p,len);
+		EVP_DigestUpdate(&ctx,buf,n);
+		EVP_DigestFinal_ex(&ctx,out,&n);
+		out+=n;
+		ret+=n;
+		}
+	EVP_MD_CTX_cleanup(&ctx);
+	return(ret);
+	}
+
+int ssl3_alert_code(int code)
+	{
+	switch (code)
+		{
+	case SSL_AD_CLOSE_NOTIFY:	return(SSL3_AD_CLOSE_NOTIFY);
+	case SSL_AD_UNEXPECTED_MESSAGE:	return(SSL3_AD_UNEXPECTED_MESSAGE);
+	case SSL_AD_BAD_RECORD_MAC:	return(SSL3_AD_BAD_RECORD_MAC);
+	case SSL_AD_DECRYPTION_FAILED:	return(SSL3_AD_BAD_RECORD_MAC);
+	case SSL_AD_RECORD_OVERFLOW:	return(SSL3_AD_BAD_RECORD_MAC);
+	case SSL_AD_DECOMPRESSION_FAILURE:return(SSL3_AD_DECOMPRESSION_FAILURE);
+	case SSL_AD_HANDSHAKE_FAILURE:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_NO_CERTIFICATE:	return(SSL3_AD_NO_CERTIFICATE);
+	case SSL_AD_BAD_CERTIFICATE:	return(SSL3_AD_BAD_CERTIFICATE);
+	case SSL_AD_UNSUPPORTED_CERTIFICATE:return(SSL3_AD_UNSUPPORTED_CERTIFICATE);
+	case SSL_AD_CERTIFICATE_REVOKED:return(SSL3_AD_CERTIFICATE_REVOKED);
+	case SSL_AD_CERTIFICATE_EXPIRED:return(SSL3_AD_CERTIFICATE_EXPIRED);
+	case SSL_AD_CERTIFICATE_UNKNOWN:return(SSL3_AD_CERTIFICATE_UNKNOWN);
+	case SSL_AD_ILLEGAL_PARAMETER:	return(SSL3_AD_ILLEGAL_PARAMETER);
+	case SSL_AD_UNKNOWN_CA:		return(SSL3_AD_BAD_CERTIFICATE);
+	case SSL_AD_ACCESS_DENIED:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_DECODE_ERROR:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_DECRYPT_ERROR:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_EXPORT_RESTRICTION:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_PROTOCOL_VERSION:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_INSUFFICIENT_SECURITY:return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_INTERNAL_ERROR:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_USER_CANCELLED:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_NO_RENEGOTIATION:	return(-1); /* Don't send it :-) */
+	case SSL_AD_UNSUPPORTED_EXTENSION: return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_CERTIFICATE_UNOBTAINABLE: return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_UNRECOGNIZED_NAME:	return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(SSL3_AD_HANDSHAKE_FAILURE);
+	case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY);
+	default:			return(-1);
+		}
+	}
+