Initial import

1 files changed, 1045 insertions, 0 deletions

diff --git a/openssl/ssl/t1_enc.c b/openssl/ssl/t1_enc.c
new file mode 100644
index 00000000..793ea43e
--- /dev/null
+++ b/openssl/ssl/t1_enc.c
@@ -0,0 +1,1045 @@
+/* ssl/t1_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"
+#ifndef OPENSSL_NO_COMP
+#include <openssl/comp.h>
+#endif
+#include <openssl/evp.h>
+#include <openssl/hmac.h>
+#include <openssl/md5.h>
+#ifdef KSSL_DEBUG
+#include <openssl/des.h>
+#endif
+
+/* seed1 through seed5 are virtually concatenated */
+static int tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
+			int sec_len,
+			const void *seed1, int seed1_len,
+			const void *seed2, int seed2_len,
+			const void *seed3, int seed3_len,
+			const void *seed4, int seed4_len,
+			const void *seed5, int seed5_len,
+			unsigned char *out, int olen)
+	{
+	int chunk;
+	unsigned int j;
+	HMAC_CTX ctx;
+	HMAC_CTX ctx_tmp;
+	unsigned char A1[EVP_MAX_MD_SIZE];
+	unsigned int A1_len;
+	int ret = 0;
+	
+	chunk=EVP_MD_size(md);
+	OPENSSL_assert(chunk >= 0);
+
+	HMAC_CTX_init(&ctx);
+	HMAC_CTX_init(&ctx_tmp);
+	if (!HMAC_Init_ex(&ctx,sec,sec_len,md, NULL))
+		goto err;
+	if (!HMAC_Init_ex(&ctx_tmp,sec,sec_len,md, NULL))
+		goto err;
+	if (seed1 != NULL && !HMAC_Update(&ctx,seed1,seed1_len))
+		goto err;
+	if (seed2 != NULL && !HMAC_Update(&ctx,seed2,seed2_len))
+		goto err;
+	if (seed3 != NULL && !HMAC_Update(&ctx,seed3,seed3_len))
+		goto err;
+	if (seed4 != NULL && !HMAC_Update(&ctx,seed4,seed4_len))
+		goto err;
+	if (seed5 != NULL && !HMAC_Update(&ctx,seed5,seed5_len))
+		goto err;
+	if (!HMAC_Final(&ctx,A1,&A1_len))
+		goto err;
+
+	for (;;)
+		{
+		if (!HMAC_Init_ex(&ctx,NULL,0,NULL,NULL)) /* re-init */
+			goto err;
+		if (!HMAC_Init_ex(&ctx_tmp,NULL,0,NULL,NULL)) /* re-init */
+			goto err;
+		if (!HMAC_Update(&ctx,A1,A1_len))
+			goto err;
+		if (!HMAC_Update(&ctx_tmp,A1,A1_len))
+			goto err;
+		if (seed1 != NULL && !HMAC_Update(&ctx,seed1,seed1_len))
+			goto err;
+		if (seed2 != NULL && !HMAC_Update(&ctx,seed2,seed2_len))
+			goto err;
+		if (seed3 != NULL && !HMAC_Update(&ctx,seed3,seed3_len))
+			goto err;
+		if (seed4 != NULL && !HMAC_Update(&ctx,seed4,seed4_len))
+			goto err;
+		if (seed5 != NULL && !HMAC_Update(&ctx,seed5,seed5_len))
+			goto err;
+
+		if (olen > chunk)
+			{
+			if (!HMAC_Final(&ctx,out,&j))
+				goto err;
+			out+=j;
+			olen-=j;
+			if (!HMAC_Final(&ctx_tmp,A1,&A1_len)) /* calc the next A1 value */
+				goto err;
+			}
+		else	/* last one */
+			{
+			if (!HMAC_Final(&ctx,A1,&A1_len))
+				goto err;
+			memcpy(out,A1,olen);
+			break;
+			}
+		}
+	ret = 1;
+err:
+	HMAC_CTX_cleanup(&ctx);
+	HMAC_CTX_cleanup(&ctx_tmp);
+	OPENSSL_cleanse(A1,sizeof(A1));
+	return ret;
+	}
+
+/* seed1 through seed5 are virtually concatenated */
+static int tls1_PRF(long digest_mask,
+		     const void *seed1, int seed1_len,
+		     const void *seed2, int seed2_len,
+		     const void *seed3, int seed3_len,
+		     const void *seed4, int seed4_len,
+		     const void *seed5, int seed5_len,
+		     const unsigned char *sec, int slen,
+		     unsigned char *out1,
+		     unsigned char *out2, int olen)
+	{
+	int len,i,idx,count;
+	const unsigned char *S1;
+	long m;
+	const EVP_MD *md;
+	int ret = 0;
+
+	/* Count number of digests and partition sec evenly */
+	count=0;
+	for (idx=0;ssl_get_handshake_digest(idx,&m,&md);idx++) {
+		if ((m<<TLS1_PRF_DGST_SHIFT) & digest_mask) count++;
+	}	
+	len=slen/count;
+	S1=sec;
+	memset(out1,0,olen);
+	for (idx=0;ssl_get_handshake_digest(idx,&m,&md);idx++) {
+		if ((m<<TLS1_PRF_DGST_SHIFT) & digest_mask) {
+			if (!md) {
+				SSLerr(SSL_F_TLS1_PRF,
+				SSL_R_UNSUPPORTED_DIGEST_TYPE);
+				goto err;				
+			}
+			if (!tls1_P_hash(md ,S1,len+(slen&1),
+					seed1,seed1_len,seed2,seed2_len,seed3,seed3_len,seed4,seed4_len,seed5,seed5_len,
+					out2,olen))
+				goto err;
+			S1+=len;
+			for (i=0; i<olen; i++)
+			{
+				out1[i]^=out2[i];
+			}
+		}
+	}
+	ret = 1;
+err:
+	return ret;
+}
+static int tls1_generate_key_block(SSL *s, unsigned char *km,
+	     unsigned char *tmp, int num)
+	{
+	int ret;
+	ret = tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
+		 TLS_MD_KEY_EXPANSION_CONST,TLS_MD_KEY_EXPANSION_CONST_SIZE,
+		 s->s3->server_random,SSL3_RANDOM_SIZE,
+		 s->s3->client_random,SSL3_RANDOM_SIZE,
+		 NULL,0,NULL,0,
+		 s->session->master_key,s->session->master_key_length,
+		 km,tmp,num);
+#ifdef KSSL_DEBUG
+	printf("tls1_generate_key_block() ==> %d byte master_key =\n\t",
+                s->session->master_key_length);
+	{
+        int i;
+        for (i=0; i < s->session->master_key_length; i++)
+                {
+                printf("%02X", s->session->master_key[i]);
+                }
+        printf("\n");  }
+#endif    /* KSSL_DEBUG */
+	return ret;
+	}
+
+int tls1_change_cipher_state(SSL *s, int which)
+	{
+	static const unsigned char empty[]="";
+	unsigned char *p,*mac_secret;
+	unsigned char *exp_label;
+	unsigned char tmp1[EVP_MAX_KEY_LENGTH];
+	unsigned char tmp2[EVP_MAX_KEY_LENGTH];
+	unsigned char iv1[EVP_MAX_IV_LENGTH*2];
+	unsigned char iv2[EVP_MAX_IV_LENGTH*2];
+	unsigned char *ms,*key,*iv;
+	int client_write;
+	EVP_CIPHER_CTX *dd;
+	const EVP_CIPHER *c;
+#ifndef OPENSSL_NO_COMP
+	const SSL_COMP *comp;
+#endif
+	const EVP_MD *m;
+	int mac_type;
+	int *mac_secret_size;
+	EVP_MD_CTX *mac_ctx;
+	EVP_PKEY *mac_key;
+	int is_export,n,i,j,k,exp_label_len,cl;
+	int reuse_dd = 0;
+
+	is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
+	c=s->s3->tmp.new_sym_enc;
+	m=s->s3->tmp.new_hash;
+	mac_type = s->s3->tmp.new_mac_pkey_type;
+#ifndef OPENSSL_NO_COMP
+	comp=s->s3->tmp.new_compression;
+#endif
+
+#ifdef KSSL_DEBUG
+	printf("tls1_change_cipher_state(which= %d) w/\n", which);
+	printf("\talg= %ld/%ld, comp= %p\n",
+	       s->s3->tmp.new_cipher->algorithm_mkey,
+	       s->s3->tmp.new_cipher->algorithm_auth,
+	       comp);
+	printf("\tevp_cipher == %p ==? &d_cbc_ede_cipher3\n", c);
+	printf("\tevp_cipher: nid, blksz= %d, %d, keylen=%d, ivlen=%d\n",
+                c->nid,c->block_size,c->key_len,c->iv_len);
+	printf("\tkey_block: len= %d, data= ", s->s3->tmp.key_block_length);
+	{
+        int i;
+        for (i=0; i<s->s3->tmp.key_block_length; i++)
+		printf("%02x", key_block[i]);  printf("\n");
+        }
+#endif	/* KSSL_DEBUG */
+
+	if (which & SSL3_CC_READ)
+		{
+		if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
+			s->mac_flags |= SSL_MAC_FLAG_READ_MAC_STREAM;
+			else
+			s->mac_flags &= ~SSL_MAC_FLAG_READ_MAC_STREAM;
+
+		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;
+		mac_ctx=ssl_replace_hash(&s->read_hash,NULL);
+#ifndef OPENSSL_NO_COMP
+		if (s->expand != NULL)
+			{
+			COMP_CTX_free(s->expand);
+			s->expand=NULL;
+			}
+		if (comp != NULL)
+			{
+			s->expand=COMP_CTX_new(comp->method);
+			if (s->expand == NULL)
+				{
+				SSLerr(SSL_F_TLS1_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_ENCRYPTED_LENGTH);
+			if (s->s3->rrec.comp == NULL)
+				goto err;
+			}
+#endif
+		/* this is done by dtls1_reset_seq_numbers for DTLS1_VERSION */
+ 		if (s->version != DTLS1_VERSION)
+			memset(&(s->s3->read_sequence[0]),0,8);
+		mac_secret= &(s->s3->read_mac_secret[0]);
+		mac_secret_size=&(s->s3->read_mac_secret_size);
+		}
+	else
+		{
+		if (s->s3->tmp.new_cipher->algorithm2 & TLS1_STREAM_MAC)
+			s->mac_flags |= SSL_MAC_FLAG_WRITE_MAC_STREAM;
+			else
+			s->mac_flags &= ~SSL_MAC_FLAG_WRITE_MAC_STREAM;
+		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;
+		mac_ctx = ssl_replace_hash(&s->write_hash,NULL);
+#ifndef OPENSSL_NO_COMP
+		if (s->compress != NULL)
+			{
+			COMP_CTX_free(s->compress);
+			s->compress=NULL;
+			}
+		if (comp != NULL)
+			{
+			s->compress=COMP_CTX_new(comp->method);
+			if (s->compress == NULL)
+				{
+				SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,SSL_R_COMPRESSION_LIBRARY_ERROR);
+				goto err2;
+				}
+			}
+#endif
+		/* this is done by dtls1_reset_seq_numbers for DTLS1_VERSION */
+ 		if (s->version != DTLS1_VERSION)
+			memset(&(s->s3->write_sequence[0]),0,8);
+		mac_secret= &(s->s3->write_mac_secret[0]);
+		mac_secret_size = &(s->s3->write_mac_secret_size);
+		}
+
+	if (reuse_dd)
+		EVP_CIPHER_CTX_cleanup(dd);
+
+	p=s->s3->tmp.key_block;
+	i=*mac_secret_size=s->s3->tmp.new_mac_secret_size;
+
+	cl=EVP_CIPHER_key_length(c);
+	j=is_export ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
+	               cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
+	/* Was j=(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;
+		exp_label=(unsigned char *)TLS_MD_CLIENT_WRITE_KEY_CONST;
+		exp_label_len=TLS_MD_CLIENT_WRITE_KEY_CONST_SIZE;
+		client_write=1;
+		}
+	else
+		{
+		n=i;
+		ms=  &(p[ n]); n+=i+j;
+		key= &(p[ n]); n+=j+k;
+		iv=  &(p[ n]); n+=k;
+		exp_label=(unsigned char *)TLS_MD_SERVER_WRITE_KEY_CONST;
+		exp_label_len=TLS_MD_SERVER_WRITE_KEY_CONST_SIZE;
+		client_write=0;
+		}
+
+	if (n > s->s3->tmp.key_block_length)
+		{
+		SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_INTERNAL_ERROR);
+		goto err2;
+		}
+
+	memcpy(mac_secret,ms,i);
+	mac_key = EVP_PKEY_new_mac_key(mac_type, NULL,
+			mac_secret,*mac_secret_size);
+	EVP_DigestSignInit(mac_ctx,NULL,m,NULL,mac_key);
+	EVP_PKEY_free(mac_key);
+#ifdef TLS_DEBUG
+printf("which = %04X\nmac key=",which);
+{ int z; for (z=0; z<i; z++) printf("%02X%c",ms[z],((z+1)%16)?' ':'\n'); }
+#endif
+	if (is_export)
+		{
+		/* In here I set both the read and write key/iv to the
+		 * same value since only the correct one will be used :-).
+		 */
+		if (!tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
+				exp_label,exp_label_len,
+				s->s3->client_random,SSL3_RANDOM_SIZE,
+				s->s3->server_random,SSL3_RANDOM_SIZE,
+				NULL,0,NULL,0,
+				key,j,tmp1,tmp2,EVP_CIPHER_key_length(c)))
+			goto err2;
+		key=tmp1;
+
+		if (k > 0)
+			{
+			if (!tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
+					TLS_MD_IV_BLOCK_CONST,TLS_MD_IV_BLOCK_CONST_SIZE,
+					s->s3->client_random,SSL3_RANDOM_SIZE,
+					s->s3->server_random,SSL3_RANDOM_SIZE,
+					NULL,0,NULL,0,
+					empty,0,iv1,iv2,k*2))
+				goto err2;
+			if (client_write)
+				iv=iv1;
+			else
+				iv= &(iv1[k]);
+			}
+		}
+
+	s->session->key_arg_length=0;
+#ifdef KSSL_DEBUG
+	{
+        int i;
+	printf("EVP_CipherInit_ex(dd,c,key=,iv=,which)\n");
+	printf("\tkey= "); for (i=0; i<c->key_len; i++) printf("%02x", key[i]);
+	printf("\n");
+	printf("\t iv= "); for (i=0; i<c->iv_len; i++) printf("%02x", iv[i]);
+	printf("\n");
+	}
+#endif	/* KSSL_DEBUG */
+
+	EVP_CipherInit_ex(dd,c,NULL,key,iv,(which & SSL3_CC_WRITE));
+#ifdef TLS_DEBUG
+printf("which = %04X\nkey=",which);
+{ int z; for (z=0; z<EVP_CIPHER_key_length(c); z++) printf("%02X%c",key[z],((z+1)%16)?' ':'\n'); }
+printf("\niv=");
+{ int z; for (z=0; z<k; z++) printf("%02X%c",iv[z],((z+1)%16)?' ':'\n'); }
+printf("\n");
+#endif
+
+	OPENSSL_cleanse(tmp1,sizeof(tmp1));
+	OPENSSL_cleanse(tmp2,sizeof(tmp1));
+	OPENSSL_cleanse(iv1,sizeof(iv1));
+	OPENSSL_cleanse(iv2,sizeof(iv2));
+	return(1);
+err:
+	SSLerr(SSL_F_TLS1_CHANGE_CIPHER_STATE,ERR_R_MALLOC_FAILURE);
+err2:
+	return(0);
+	}
+
+int tls1_setup_key_block(SSL *s)
+	{
+	unsigned char *p1,*p2=NULL;
+	const EVP_CIPHER *c;
+	const EVP_MD *hash;
+	int num;
+	SSL_COMP *comp;
+	int mac_type= NID_undef,mac_secret_size=0;
+	int ret=0;
+
+#ifdef KSSL_DEBUG
+	printf ("tls1_setup_key_block()\n");
+#endif	/* KSSL_DEBUG */
+
+	if (s->s3->tmp.key_block_length != 0)
+		return(1);
+
+	if (!ssl_cipher_get_evp(s->session,&c,&hash,&mac_type,&mac_secret_size,&comp))
+		{
+		SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
+		return(0);
+		}
+
+	s->s3->tmp.new_sym_enc=c;
+	s->s3->tmp.new_hash=hash;
+	s->s3->tmp.new_mac_pkey_type = mac_type;
+	s->s3->tmp.new_mac_secret_size = mac_secret_size;
+	num=EVP_CIPHER_key_length(c)+mac_secret_size+EVP_CIPHER_iv_length(c);
+	num*=2;
+
+	ssl3_cleanup_key_block(s);
+
+	if ((p1=(unsigned char *)OPENSSL_malloc(num)) == NULL)
+		{
+		SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
+		goto err;
+		}
+
+	s->s3->tmp.key_block_length=num;
+	s->s3->tmp.key_block=p1;
+
+	if ((p2=(unsigned char *)OPENSSL_malloc(num)) == NULL)
+		{
+		SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
+		goto err;
+		}
+
+#ifdef TLS_DEBUG
+printf("client random\n");
+{ int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->client_random[z],((z+1)%16)?' ':'\n'); }
+printf("server random\n");
+{ int z; for (z=0; z<SSL3_RANDOM_SIZE; z++) printf("%02X%c",s->s3->server_random[z],((z+1)%16)?' ':'\n'); }
+printf("pre-master\n");
+{ int z; for (z=0; z<s->session->master_key_length; z++) printf("%02X%c",s->session->master_key[z],((z+1)%16)?' ':'\n'); }
+#endif
+	if (!tls1_generate_key_block(s,p1,p2,num))
+		goto err;
+#ifdef TLS_DEBUG
+printf("\nkey block\n");
+{ int z; for (z=0; z<num; z++) printf("%02X%c",p1[z],((z+1)%16)?' ':'\n'); }
+#endif
+
+	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
+			}
+		}
+		
+	ret = 1;
+err:
+	if (p2)
+		{
+		OPENSSL_cleanse(p2,num);
+		OPENSSL_free(p2);
+		}
+	return(ret);
+	}
+
+int tls1_enc(SSL *s, int send)
+	{
+	SSL3_RECORD *rec;
+	EVP_CIPHER_CTX *ds;
+	unsigned long l;
+	int bs,i,ii,j,k,n=0;
+	const EVP_CIPHER *enc;
+
+	if (send)
+		{
+		if (EVP_MD_CTX_md(s->write_hash))
+			{
+			n=EVP_MD_CTX_size(s->write_hash);
+			OPENSSL_assert(n >= 0);
+			}
+		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
+		{
+		if (EVP_MD_CTX_md(s->read_hash))
+			{
+			n=EVP_MD_CTX_size(s->read_hash);
+			OPENSSL_assert(n >= 0);
+			}
+		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);
+		}
+
+#ifdef KSSL_DEBUG
+	printf("tls1_enc(%d)\n", send);
+#endif    /* KSSL_DEBUG */
+
+	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);
+
+		if ((bs != 1) && send)
+			{
+			i=bs-((int)l%bs);
+
+			/* Add weird padding of upto 256 bytes */
+
+			/* we need to add 'i' padding bytes of value j */
+			j=i-1;
+			if (s->options & SSL_OP_TLS_BLOCK_PADDING_BUG)
+				{
+				if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
+					j++;
+				}
+			for (k=(int)l; k<(int)(l+i); k++)
+				rec->input[k]=j;
+			l+=i;
+			rec->length+=i;
+			}
+
+#ifdef KSSL_DEBUG
+		{
+                unsigned long ui;
+		printf("EVP_Cipher(ds=%p,rec->data=%p,rec->input=%p,l=%ld) ==>\n",
+                        ds,rec->data,rec->input,l);
+		printf("\tEVP_CIPHER_CTX: %d buf_len, %d key_len [%d %d], %d iv_len\n",
+                        ds->buf_len, ds->cipher->key_len,
+                        DES_KEY_SZ, DES_SCHEDULE_SZ,
+                        ds->cipher->iv_len);
+		printf("\t\tIV: ");
+		for (i=0; i<ds->cipher->iv_len; i++) printf("%02X", ds->iv[i]);
+		printf("\n");
+		printf("\trec->input=");
+		for (ui=0; ui<l; ui++) printf(" %02x", rec->input[ui]);
+		printf("\n");
+		}
+#endif	/* KSSL_DEBUG */
+
+		if (!send)
+			{
+			if (l == 0 || l%bs != 0)
+				{
+				SSLerr(SSL_F_TLS1_ENC,SSL_R_BLOCK_CIPHER_PAD_IS_WRONG);
+				ssl3_send_alert(s,SSL3_AL_FATAL,SSL_AD_DECRYPTION_FAILED);
+				return 0;
+				}
+			}
+		
+		EVP_Cipher(ds,rec->data,rec->input,l);
+
+#ifdef KSSL_DEBUG
+		{
+                unsigned long i;
+                printf("\trec->data=");
+		for (i=0; i<l; i++)
+                        printf(" %02x", rec->data[i]);  printf("\n");
+                }
+#endif	/* KSSL_DEBUG */
+
+		if ((bs != 1) && !send)
+			{
+			ii=i=rec->data[l-1]; /* padding_length */
+			i++;
+			/* NB: if compression is in operation the first packet
+			 * may not be of even length so the padding bug check
+			 * cannot be performed. This bug workaround has been
+			 * around since SSLeay so hopefully it is either fixed
+			 * now or no buggy implementation supports compression 
+			 * [steve]
+			 */
+			if ( (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG)
+				&& !s->expand)
+				{
+				/* First packet is even in size, so check */
+				if ((memcmp(s->s3->read_sequence,
+					"\0\0\0\0\0\0\0\0",8) == 0) && !(ii & 1))
+					s->s3->flags|=TLS1_FLAGS_TLS_PADDING_BUG;
+				if (s->s3->flags & TLS1_FLAGS_TLS_PADDING_BUG)
+					i--;
+				}
+			/* TLS 1.0 does not bound the number of padding bytes by the block size.
+			 * All of them must have value 'padding_length'. */
+			if (i > (int)rec->length)
+				{
+				/* 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;
+				}
+			for (j=(int)(l-i); j<(int)l; j++)
+				{
+				if (rec->data[j] != ii)
+					{
+					/* Incorrect padding */
+					return -1;
+					}
+				}
+			rec->length-=i;
+			}
+		}
+	return(1);
+	}
+int tls1_cert_verify_mac(SSL *s, int md_nid, unsigned char *out)
+	{
+	unsigned int ret;
+	EVP_MD_CTX ctx, *d=NULL;
+	int i;
+
+	if (s->s3->handshake_buffer) 
+		if (!ssl3_digest_cached_records(s))
+			return 0;
+
+	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_TLS1_CERT_VERIFY_MAC,SSL_R_NO_REQUIRED_DIGEST);
+		return 0;
+	}	
+
+	EVP_MD_CTX_init(&ctx);
+	EVP_MD_CTX_copy_ex(&ctx,d);
+	EVP_DigestFinal_ex(&ctx,out,&ret);
+	EVP_MD_CTX_cleanup(&ctx);
+	return((int)ret);
+	}
+
+int tls1_final_finish_mac(SSL *s,
+	     const char *str, int slen, unsigned char *out)
+	{
+	unsigned int i;
+	EVP_MD_CTX ctx;
+	unsigned char buf[2*EVP_MAX_MD_SIZE];
+	unsigned char *q,buf2[12];
+	int idx;
+	long mask;
+	int err=0;
+	const EVP_MD *md; 
+
+	q=buf;
+
+	if (s->s3->handshake_buffer) 
+		if (!ssl3_digest_cached_records(s))
+			return 0;
+
+	EVP_MD_CTX_init(&ctx);
+
+	for (idx=0;ssl_get_handshake_digest(idx,&mask,&md);idx++)
+		{
+		if (mask & s->s3->tmp.new_cipher->algorithm2)
+			{
+			int hashsize = EVP_MD_size(md);
+			if (hashsize < 0 || hashsize > (int)(sizeof buf - (size_t)(q-buf)))
+				{
+				/* internal error: 'buf' is too small for this cipersuite! */
+				err = 1;
+				}
+			else
+				{
+				EVP_MD_CTX_copy_ex(&ctx,s->s3->handshake_dgst[idx]);
+				EVP_DigestFinal_ex(&ctx,q,&i);
+				if (i != (unsigned int)hashsize) /* can't really happen */
+					err = 1;
+				q+=i;
+				}
+			}
+		}
+		
+	if (!tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
+			str,slen, buf,(int)(q-buf), NULL,0, NULL,0, NULL,0,
+			s->session->master_key,s->session->master_key_length,
+			out,buf2,sizeof buf2))
+		err = 1;
+	EVP_MD_CTX_cleanup(&ctx);
+
+	if (err)
+		return 0;
+	else
+		return sizeof buf2;
+	}
+
+int tls1_mac(SSL *ssl, unsigned char *md, int send)
+	{
+	SSL3_RECORD *rec;
+	unsigned char *seq;
+	EVP_MD_CTX *hash;
+	size_t md_size;
+	int i;
+	EVP_MD_CTX hmac, *mac_ctx;
+	unsigned char buf[5]; 
+	int stream_mac = (send?(ssl->mac_flags & SSL_MAC_FLAG_WRITE_MAC_STREAM):(ssl->mac_flags&SSL_MAC_FLAG_READ_MAC_STREAM));
+	int t;
+
+	if (send)
+		{
+		rec= &(ssl->s3->wrec);
+		seq= &(ssl->s3->write_sequence[0]);
+		hash=ssl->write_hash;
+		}
+	else
+		{
+		rec= &(ssl->s3->rrec);
+		seq= &(ssl->s3->read_sequence[0]);
+		hash=ssl->read_hash;
+		}
+
+	t=EVP_MD_CTX_size(hash);
+	OPENSSL_assert(t >= 0);
+	md_size=t;
+
+	buf[0]=rec->type;
+	buf[1]=(unsigned char)(ssl->version>>8);
+	buf[2]=(unsigned char)(ssl->version);
+	buf[3]=rec->length>>8;
+	buf[4]=rec->length&0xff;
+
+	/* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
+	if (stream_mac) 
+		{
+			mac_ctx = hash;
+		}
+		else
+		{
+			EVP_MD_CTX_copy(&hmac,hash);
+			mac_ctx = &hmac;
+		}
+
+	if (ssl->version == DTLS1_VERSION || ssl->version == DTLS1_BAD_VER)
+		{
+		unsigned char dtlsseq[8],*p=dtlsseq;
+
+		s2n(send?ssl->d1->w_epoch:ssl->d1->r_epoch, p);
+		memcpy (p,&seq[2],6);
+
+		EVP_DigestSignUpdate(mac_ctx,dtlsseq,8);
+		}
+	else
+		EVP_DigestSignUpdate(mac_ctx,seq,8);
+
+	EVP_DigestSignUpdate(mac_ctx,buf,5);
+	EVP_DigestSignUpdate(mac_ctx,rec->input,rec->length);
+	t=EVP_DigestSignFinal(mac_ctx,md,&md_size);
+	OPENSSL_assert(t > 0);
+		
+	if (!stream_mac) EVP_MD_CTX_cleanup(&hmac);
+#ifdef TLS_DEBUG
+printf("sec=");
+{unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",mac_sec[z]); printf("\n"); }
+printf("seq=");
+{int z; for (z=0; z<8; z++) printf("%02X ",seq[z]); printf("\n"); }
+printf("buf=");
+{int z; for (z=0; z<5; z++) printf("%02X ",buf[z]); printf("\n"); }
+printf("rec=");
+{unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); }
+#endif
+
+	if (ssl->version != DTLS1_VERSION && ssl->version != DTLS1_BAD_VER)
+		{
+		for (i=7; i>=0; i--)
+			{
+			++seq[i];
+			if (seq[i] != 0) break; 
+			}
+		}
+
+#ifdef TLS_DEBUG
+{unsigned int z; for (z=0; z<md_size; z++) printf("%02X ",md[z]); printf("\n"); }
+#endif
+	return(md_size);
+	}
+
+int tls1_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
+	     int len)
+	{
+	unsigned char buff[SSL_MAX_MASTER_KEY_LENGTH];
+	const void *co = NULL, *so = NULL;
+	int col = 0, sol = 0;
+
+#ifdef KSSL_DEBUG
+	printf ("tls1_generate_master_secret(%p,%p, %p, %d)\n", s,out, p,len);
+#endif	/* KSSL_DEBUG */
+
+#ifdef TLSEXT_TYPE_opaque_prf_input
+	if (s->s3->client_opaque_prf_input != NULL && s->s3->server_opaque_prf_input != NULL &&
+	    s->s3->client_opaque_prf_input_len > 0 &&
+	    s->s3->client_opaque_prf_input_len == s->s3->server_opaque_prf_input_len)
+		{
+		co = s->s3->client_opaque_prf_input;
+		col = s->s3->server_opaque_prf_input_len;
+		so = s->s3->server_opaque_prf_input;
+		sol = s->s3->client_opaque_prf_input_len; /* must be same as col (see draft-rescorla-tls-opaque-prf-input-00.txt, section 3.1) */
+		}
+#endif
+
+	tls1_PRF(s->s3->tmp.new_cipher->algorithm2,
+		TLS_MD_MASTER_SECRET_CONST,TLS_MD_MASTER_SECRET_CONST_SIZE,
+		s->s3->client_random,SSL3_RANDOM_SIZE,
+		co, col,
+		s->s3->server_random,SSL3_RANDOM_SIZE,
+		so, sol,
+		p,len,
+		s->session->master_key,buff,sizeof buff);
+
+#ifdef KSSL_DEBUG
+	printf ("tls1_generate_master_secret() complete\n");
+#endif	/* KSSL_DEBUG */
+	return(SSL3_MASTER_SECRET_SIZE);
+	}
+
+int tls1_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(TLS1_AD_DECRYPTION_FAILED);
+	case SSL_AD_RECORD_OVERFLOW:	return(TLS1_AD_RECORD_OVERFLOW);
+	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(-1);
+	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(TLS1_AD_UNKNOWN_CA);
+	case SSL_AD_ACCESS_DENIED:	return(TLS1_AD_ACCESS_DENIED);
+	case SSL_AD_DECODE_ERROR:	return(TLS1_AD_DECODE_ERROR);
+	case SSL_AD_DECRYPT_ERROR:	return(TLS1_AD_DECRYPT_ERROR);
+	case SSL_AD_EXPORT_RESTRICTION:	return(TLS1_AD_EXPORT_RESTRICTION);
+	case SSL_AD_PROTOCOL_VERSION:	return(TLS1_AD_PROTOCOL_VERSION);
+	case SSL_AD_INSUFFICIENT_SECURITY:return(TLS1_AD_INSUFFICIENT_SECURITY);
+	case SSL_AD_INTERNAL_ERROR:	return(TLS1_AD_INTERNAL_ERROR);
+	case SSL_AD_USER_CANCELLED:	return(TLS1_AD_USER_CANCELLED);
+	case SSL_AD_NO_RENEGOTIATION:	return(TLS1_AD_NO_RENEGOTIATION);
+	case SSL_AD_UNSUPPORTED_EXTENSION: return(TLS1_AD_UNSUPPORTED_EXTENSION);
+	case SSL_AD_CERTIFICATE_UNOBTAINABLE: return(TLS1_AD_CERTIFICATE_UNOBTAINABLE);
+	case SSL_AD_UNRECOGNIZED_NAME:	return(TLS1_AD_UNRECOGNIZED_NAME);
+	case SSL_AD_BAD_CERTIFICATE_STATUS_RESPONSE: return(TLS1_AD_BAD_CERTIFICATE_STATUS_RESPONSE);
+	case SSL_AD_BAD_CERTIFICATE_HASH_VALUE: return(TLS1_AD_BAD_CERTIFICATE_HASH_VALUE);
+	case SSL_AD_UNKNOWN_PSK_IDENTITY:return(TLS1_AD_UNKNOWN_PSK_IDENTITY);
+#if 0 /* not appropriate for TLS, not used for DTLS */
+	case DTLS1_AD_MISSING_HANDSHAKE_MESSAGE: return 
+					  (DTLS1_AD_MISSING_HANDSHAKE_MESSAGE);
+#endif
+	default:			return(-1);
+		}
+	}
+