* copied and put under another distribution licence
* [including the GNU Public Licence.]
*/
+/* ====================================================================
+ * Copyright (c) 1998-2002 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/comp.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
-#include "ssl_locl.h"
#include <openssl/md5.h>
static void tls1_P_hash(const EVP_MD *md, const unsigned char *sec,
unsigned int j;
HMAC_CTX ctx;
HMAC_CTX ctx_tmp;
- unsigned char A1[HMAC_MAX_MD_CBLOCK];
+ unsigned char A1[EVP_MAX_MD_SIZE];
unsigned int A1_len;
chunk=EVP_MD_size(md);
HMAC_CTX_init(&ctx);
HMAC_CTX_init(&ctx_tmp);
- HMAC_Init(&ctx,sec,sec_len,md);
- HMAC_Init(&ctx_tmp,sec,sec_len,md);
+ HMAC_Init_ex(&ctx,sec,sec_len,md, NULL);
+ HMAC_Init_ex(&ctx_tmp,sec,sec_len,md, NULL);
HMAC_Update(&ctx,seed,seed_len);
HMAC_Final(&ctx,A1,&A1_len);
n=0;
for (;;)
{
- HMAC_Init(&ctx,NULL,0,NULL); /* re-init */
- HMAC_Init(&ctx_tmp,NULL,0,NULL); /* re-init */
+ HMAC_Init_ex(&ctx,NULL,0,NULL,NULL); /* re-init */
+ HMAC_Init_ex(&ctx_tmp,NULL,0,NULL,NULL); /* re-init */
HMAC_Update(&ctx,A1,A1_len);
HMAC_Update(&ctx_tmp,A1,A1_len);
HMAC_Update(&ctx,seed,seed_len);
}
HMAC_CTX_cleanup(&ctx);
HMAC_CTX_cleanup(&ctx_tmp);
- memset(A1,0,sizeof(A1));
+ OPENSSL_cleanse(A1,sizeof(A1));
}
static void tls1_PRF(const EVP_MD *md5, const EVP_MD *sha1,
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 _exp,n,i,j,k,exp_label_len,cl;
+ int is_export,n,i,j,k,exp_label_len,cl;
+ int reuse_dd = 0;
- _exp=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
+ is_export=SSL_C_IS_EXPORT(s->s3->tmp.new_cipher);
c=s->s3->tmp.new_sym_enc;
m=s->s3->tmp.new_hash;
+#ifndef OPENSSL_NO_COMP
comp=s->s3->tmp.new_compression;
+#endif
key_block=s->s3->tmp.key_block;
#ifdef KSSL_DEBUG
if (which & SSL3_CC_READ)
{
- if ((s->enc_read_ctx == NULL) &&
- ((s->enc_read_ctx=(EVP_CIPHER_CTX *)
- OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
+ 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;
s->read_hash=m;
+#ifndef OPENSSL_NO_COMP
if (s->expand != NULL)
{
COMP_CTX_free(s->expand);
if (s->s3->rrec.comp == NULL)
goto err;
}
- memset(&(s->s3->read_sequence[0]),0,8);
+#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]);
}
else
{
- if ((s->enc_write_ctx == NULL) &&
- ((s->enc_write_ctx=(EVP_CIPHER_CTX *)
- OPENSSL_malloc(sizeof(EVP_CIPHER_CTX))) == NULL))
+ 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;
s->write_hash=m;
+#ifndef OPENSSL_NO_COMP
if (s->compress != NULL)
{
COMP_CTX_free(s->compress);
goto err2;
}
}
- memset(&(s->s3->write_sequence[0]),0,8);
+#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]);
}
- EVP_CIPHER_CTX_init(dd);
+ if (reuse_dd)
+ EVP_CIPHER_CTX_cleanup(dd);
p=s->s3->tmp.key_block;
i=EVP_MD_size(m);
cl=EVP_CIPHER_key_length(c);
- j=_exp ? (cl < SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher) ?
- cl : SSL_C_EXPORT_KEYLENGTH(s->s3->tmp.new_cipher)) : cl;
+ 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);
er1= &(s->s3->client_random[0]);
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 (_exp)
+ 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 :-).
printf("\n");
#endif
- memset(tmp1,0,sizeof(tmp1));
- memset(tmp2,0,sizeof(tmp1));
- memset(iv1,0,sizeof(iv1));
- memset(iv2,0,sizeof(iv2));
+ 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);
{ 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
tls1_generate_key_block(s,p1,p2,num);
- memset(p2,0,num);
+ OPENSSL_cleanse(p2,num);
OPENSSL_free(p2);
#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->algorithms & SSL_ENC_MASK) == SSL_eNULL)
+ s->s3->need_empty_fragments = 0;
+
+#ifndef OPENSSL_NO_RC4
+ if ((s->session->cipher->algorithms & SSL_ENC_MASK) == SSL_RC4)
+ s->s3->need_empty_fragments = 0;
+#endif
+ }
+ }
+
return(1);
err:
SSLerr(SSL_F_TLS1_SETUP_KEY_BLOCK,ERR_R_MALLOC_FAILURE);
{
ii=i=rec->data[l-1]; /* padding_length */
i++;
- if (s->options&SSL_OP_TLS_BLOCK_PADDING_BUG)
+ /* 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,
tls1_PRF(s->ctx->md5,s->ctx->sha1,buf,(int)(q-buf),
s->session->master_key,s->session->master_key_length,
- out,buf2,12);
+ out,buf2,sizeof buf2);
EVP_MD_CTX_cleanup(&ctx);
- return((int)12);
+ return sizeof buf2;
}
int tls1_mac(SSL *ssl, unsigned char *md, int send)
/* I should fix this up TLS TLS TLS TLS TLS XXXXXXXX */
HMAC_CTX_init(&hmac);
- HMAC_Init(&hmac,mac_sec,EVP_MD_size(hash),hash);
+ HMAC_Init_ex(&hmac,mac_sec,EVP_MD_size(hash),hash,NULL);
HMAC_Update(&hmac,seq,8);
HMAC_Update(&hmac,buf,5);
HMAC_Update(&hmac,rec->input,rec->length);
{unsigned int z; for (z=0; z<rec->length; z++) printf("%02X ",buf[z]); printf("\n"); }
#endif
- for (i=7; i>=0; i--)
- {
- ++seq[i];
- if (seq[i] != 0) break;
+ if ( SSL_version(ssl) != DTLS1_VERSION)
+ {
+ for (i=7; i>=0; i--)
+ {
+ ++seq[i];
+ if (seq[i] != 0) break;
+ }
}
#ifdef TLS_DEBUG
s->s3->server_random,SSL3_RANDOM_SIZE);
tls1_PRF(s->ctx->md5,s->ctx->sha1,
buf,TLS_MD_MASTER_SECRET_CONST_SIZE+SSL3_RANDOM_SIZE*2,p,len,
- s->session->master_key,buff,SSL3_MASTER_SECRET_SIZE);
+ s->session->master_key,buff,sizeof buff);
#ifdef KSSL_DEBUG
printf ("tls1_generate_master_secret() complete\n");
#endif /* KSSL_DEBUG */
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);
}
}
projects / openssl.git / blobdiff