-/* 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 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
*
+ * Licensed under the OpenSSL license (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
*/
+
/* ====================================================================
* Copyright 2005 Nokia. All rights reserved.
*
#include <openssl/evp.h>
#include <openssl/md5.h>
-static const 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 const 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;
+ 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;
+ int ret = 0;
#ifdef CHARSET_EBCDIC
c = os_toascii[c]; /* 'A' in ASCII */
#endif
k = 0;
- EVP_MD_CTX_init(&m5);
- EVP_MD_CTX_set_flags(&m5, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
- EVP_MD_CTX_init(&s1);
+ m5 = EVP_MD_CTX_new();
+ s1 = EVP_MD_CTX_new();
+ if (m5 == NULL || s1 == NULL) {
+ SSLerr(SSL_F_SSL3_GENERATE_KEY_BLOCK, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
+ EVP_MD_CTX_set_flags(m5, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
for (i = 0; (int)i < num; i += MD5_DIGEST_LENGTH) {
k++;
if (k > sizeof buf) {
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,
+ 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_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,
+ 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);
+ EVP_DigestUpdate(m5, smd, SHA_DIGEST_LENGTH);
if ((int)(i + MD5_DIGEST_LENGTH) > num) {
- EVP_DigestFinal_ex(&m5, smd, NULL);
+ EVP_DigestFinal_ex(m5, smd, NULL);
memcpy(km, smd, (num - i));
} else
- EVP_DigestFinal_ex(&m5, km, NULL);
+ 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;
+ OPENSSL_cleanse(smd, sizeof(smd));
+ ret = 1;
+ err:
+ EVP_MD_CTX_free(m5);
+ EVP_MD_CTX_free(s1);
+ return ret;
}
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;
+ unsigned char *ms, *key, *iv;
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 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 */
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)
+ else if ((s->enc_read_ctx = EVP_CIPHER_CTX_new()) == NULL)
goto err;
else
/*
- * make sure it's intialized in case we exit later with an error
+ * make sure it's initialised in case we exit later with an error
*/
- EVP_CIPHER_CTX_init(s->enc_read_ctx);
+ EVP_CIPHER_CTX_reset(s->enc_read_ctx);
dd = s->enc_read_ctx;
- ssl_replace_hash(&s->read_hash, m);
+ if (ssl_replace_hash(&s->read_hash, m) == NULL) {
+ SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
+ goto err2;
+ }
#ifndef OPENSSL_NO_COMP
/* COMPRESS */
- if (s->expand != NULL) {
- COMP_CTX_free(s->expand);
- s->expand = NULL;
- }
+ COMP_CTX_free(s->expand);
+ s->expand = NULL;
if (comp != NULL) {
s->expand = COMP_CTX_new(comp);
if (s->expand == NULL) {
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);
+ RECORD_LAYER_reset_read_sequence(&s->rlayer);
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)
+ else if ((s->enc_write_ctx = EVP_CIPHER_CTX_new()) == NULL)
goto err;
else
/*
- * make sure it's intialized in case we exit later with an error
+ * make sure it's initialised in case we exit later with an error
*/
- EVP_CIPHER_CTX_init(s->enc_write_ctx);
+ EVP_CIPHER_CTX_reset(s->enc_write_ctx);
dd = s->enc_write_ctx;
- ssl_replace_hash(&s->write_hash, m);
+ if (ssl_replace_hash(&s->write_hash, m) == NULL) {
+ SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
+ goto err2;
+ }
#ifndef OPENSSL_NO_COMP
/* COMPRESS */
- if (s->compress != NULL) {
- COMP_CTX_free(s->compress);
- s->compress = NULL;
- }
+ COMP_CTX_free(s->compress);
+ s->compress = NULL;
if (comp != NULL) {
s->compress = COMP_CTX_new(comp);
if (s->compress == NULL) {
}
}
#endif
- memset(&(s->s3->write_sequence[0]), 0, 8);
+ RECORD_LAYER_reset_write_sequence(&s->rlayer);
mac_secret = &(s->s3->write_mac_secret[0]);
}
if (reuse_dd)
- EVP_CIPHER_CTX_cleanup(dd);
+ EVP_CIPHER_CTX_reset(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); */
+ j = cl;
k = EVP_CIPHER_iv_length(c);
if ((which == SSL3_CHANGE_CIPHER_CLIENT_WRITE) ||
(which == SSL3_CHANGE_CIPHER_SERVER_READ)) {
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 += 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) {
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]);
- }
- }
EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE));
}
#endif
- OPENSSL_cleanse(&(exp_key[0]), sizeof(exp_key));
- OPENSSL_cleanse(&(exp_iv[0]), sizeof(exp_iv));
- EVP_MD_CTX_cleanup(&md);
+ OPENSSL_cleanse(exp_key, sizeof(exp_key));
+ OPENSSL_cleanse(exp_iv, sizeof(exp_iv));
return (1);
err:
SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_MALLOC_FAILURE);
err2:
+ OPENSSL_cleanse(exp_key, sizeof(exp_key));
+ OPENSSL_cleanse(exp_iv, sizeof(exp_iv));
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;
- }
+ OPENSSL_clear_free(s->s3->tmp.key_block, s->s3->tmp.key_block_length);
+ s->s3->tmp.key_block = NULL;
s->s3->tmp.key_block_length = 0;
}
-/*-
- * ssl3_enc encrypts/decrypts the record in |s->wrec| / |s->rrec|, respectively.
- *
- * Returns:
- * 0: (in non-constant time) if the record is publically invalid (i.e. too
- * short etc).
- * 1: if the record's padding is valid / the encryption was successful.
- * -1: if the record's padding is invalid or, if sending, an internal error
- * occurred.
- */
-int ssl3_enc(SSL *s, int send)
+int ssl3_init_finished_mac(SSL *s)
{
- SSL3_RECORD *rec;
- EVP_CIPHER_CTX *ds;
- unsigned long l;
- int bs, i, mac_size = 0;
- 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 */
+ BIO *buf = BIO_new(BIO_s_mem());
- 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)
- return 0;
- /* otherwise, rec->length >= bs */
- }
-
- if (EVP_Cipher(ds, rec->data, rec->input, l) < 1)
- return -1;
-
- if (EVP_MD_CTX_md(s->read_hash) != NULL)
- mac_size = EVP_MD_CTX_size(s->read_hash);
- if ((bs != 1) && !send)
- return ssl3_cbc_remove_padding(s, rec, bs, mac_size);
+ if (buf == NULL) {
+ SSLerr(SSL_F_SSL3_INIT_FINISHED_MAC, ERR_R_MALLOC_FAILURE);
+ return 0;
}
- 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());
+ ssl3_free_digest_list(s);
+ s->s3->handshake_buffer = buf;
(void)BIO_set_close(s->s3->handshake_buffer, BIO_CLOSE);
+ return 1;
}
+/*
+ * Free digest list. Also frees handshake buffer since they are always freed
+ * together.
+ */
+
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);
+ BIO_free(s->s3->handshake_buffer);
+ s->s3->handshake_buffer = NULL;
+ EVP_MD_CTX_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
- && !(s->s3->flags & TLS1_FLAGS_KEEP_HANDSHAKE)) {
+ if (s->s3->handshake_dgst == NULL)
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);
- }
- }
+ else
+ EVP_DigestUpdate(s->s3->handshake_dgst, buf, len);
}
-int ssl3_digest_cached_records(SSL *s)
+int ssl3_digest_cached_records(SSL *s, int keep)
{
- 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 *));
if (s->s3->handshake_dgst == NULL) {
- SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, ERR_R_MALLOC_FAILURE);
- return 0;
- }
- 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;
- }
+ 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 & ssl_get_algorithm2(s)) && md) {
- s->s3->handshake_dgst[i] = EVP_MD_CTX_create();
- if (EVP_MD_nid(md) == NID_md5) {
- EVP_MD_CTX_set_flags(s->s3->handshake_dgst[i],
- EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
- }
- 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;
+ s->s3->handshake_dgst = EVP_MD_CTX_new();
+ if (s->s3->handshake_dgst == NULL) {
+ SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
+
+ md = ssl_handshake_md(s);
+ if ( md == NULL
+ || !EVP_DigestInit_ex(s->s3->handshake_dgst, md, NULL)
+ || !EVP_DigestUpdate(s->s3->handshake_dgst, hdata, hdatalen))
+ {
+ SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS, ERR_R_INTERNAL_ERROR);
+ return 0;
}
}
- if (!(s->s3->flags & TLS1_FLAGS_KEEP_HANDSHAKE)) {
- /* Free handshake_buffer BIO */
+ if (keep == 0) {
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)
+int ssl3_final_finish_mac(SSL *s, const char *sender, int len, unsigned char *p)
{
- return (ssl3_handshake_mac(s, md_nid, NULL, 0, p));
-}
+ int ret;
+ EVP_MD_CTX *ctx = NULL;
-int ssl3_final_finish_mac(SSL *s,
- const char *sender, int len, unsigned char *p)
-{
- int ret, sha1len;
- ret = ssl3_handshake_mac(s, NID_md5, sender, len, p);
- if (ret == 0)
+ if (!ssl3_digest_cached_records(s, 0))
return 0;
- p += ret;
-
- sha1len = ssl3_handshake_mac(s, NID_sha1, sender, len, p);
- if (sha1len == 0)
+ if (EVP_MD_CTX_type(s->s3->handshake_dgst) != NID_md5_sha1) {
+ SSLerr(SSL_F_SSL3_FINAL_FINISH_MAC, SSL_R_NO_REQUIRED_DIGEST);
return 0;
-
- ret += sha1len;
- 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);
+
+ ctx = EVP_MD_CTX_new();
+ if (ctx == NULL) {
+ SSLerr(SSL_F_SSL3_FINAL_FINISH_MAC, ERR_R_MALLOC_FAILURE);
return 0;
}
- EVP_MD_CTX_init(&ctx);
- EVP_MD_CTX_set_flags(&ctx, EVP_MD_CTX_FLAG_NON_FIPS_ALLOW);
- EVP_MD_CTX_copy_ex(&ctx, d);
- n = EVP_MD_CTX_size(&ctx);
- if (n < 0)
- return 0;
+ EVP_MD_CTX_copy_ex(ctx, s->s3->handshake_dgst);
- 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;
- size_t 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;
+ ret = EVP_MD_CTX_size(ctx);
+ if (ret < 0) {
+ EVP_MD_CTX_reset(ctx);
+ return 0;
}
- t = EVP_MD_CTX_size(hash);
- if (t < 0)
- return -1;
- md_size = t;
- npad = (48 / md_size) * md_size;
-
- if (!send &&
- EVP_CIPHER_CTX_mode(ssl->enc_read_ctx) == EVP_CIPH_CBC_MODE &&
- ssl3_cbc_record_digest_supported(hash)) {
- /*
- * This is a CBC-encrypted record. We must avoid leaking any
- * timing-side channel information about how many blocks of data we
- * are hashing because that gives an attacker a timing-oracle.
- */
-
- /*-
- * npad is, at most, 48 bytes and that's with MD5:
- * 16 + 48 + 8 (sequence bytes) + 1 + 2 = 75.
- *
- * With SHA-1 (the largest hash speced for SSLv3) the hash size
- * goes up 4, but npad goes down by 8, resulting in a smaller
- * total size.
- */
- unsigned char header[75];
- unsigned j = 0;
- memcpy(header + j, mac_sec, md_size);
- j += md_size;
- memcpy(header + j, ssl3_pad_1, npad);
- j += npad;
- memcpy(header + j, seq, 8);
- j += 8;
- header[j++] = rec->type;
- header[j++] = rec->length >> 8;
- header[j++] = rec->length & 0xff;
-
- /* Final param == is SSLv3 */
- ssl3_cbc_digest_record(hash,
- md, &md_size,
- header, rec->input,
- rec->length + md_size, rec->orig_len,
- mac_sec, md_size, 1);
- } else {
- unsigned int md_size_u;
- /* 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_u);
- md_size = md_size_u;
-
- EVP_MD_CTX_cleanup(&md_ctx);
+ if ((sender != NULL && EVP_DigestUpdate(ctx, sender, len) <= 0)
+ || EVP_MD_CTX_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET,
+ s->session->master_key_length,
+ s->session->master_key) <= 0
+ || EVP_DigestFinal_ex(ctx, p, NULL) <= 0) {
+ SSLerr(SSL_F_SSL3_FINAL_FINISH_MAC, ERR_R_INTERNAL_ERROR);
+ ret = 0;
}
- ssl3_record_sequence_update(seq);
- return (md_size);
-}
+ EVP_MD_CTX_free(ctx);
-void ssl3_record_sequence_update(unsigned char *seq)
-{
- int i;
-
- for (i = 7; i >= 0; i--) {
- ++seq[i];
- if (seq[i] != 0)
- break;
- }
+ return ret;
}
int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
#endif
};
unsigned char buf[EVP_MAX_MD_SIZE];
- EVP_MD_CTX ctx;
+ EVP_MD_CTX *ctx = EVP_MD_CTX_new();
int i, ret = 0;
unsigned int n;
#ifdef OPENSSL_SSL_TRACE_CRYPTO
unsigned char *tmpout = out;
#endif
- EVP_MD_CTX_init(&ctx);
+ if (ctx == NULL) {
+ SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_MALLOC_FAILURE);
+ return 0;
+ }
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);
+ if (EVP_DigestInit_ex(ctx, s->ctx->sha1, NULL) <= 0
+ || EVP_DigestUpdate(ctx, salt[i],
+ strlen((const char *)salt[i])) <= 0
+ || EVP_DigestUpdate(ctx, p, len) <= 0
+ || EVP_DigestUpdate(ctx, &(s->s3->client_random[0]),
+ SSL3_RANDOM_SIZE) <= 0
+ || EVP_DigestUpdate(ctx, &(s->s3->server_random[0]),
+ SSL3_RANDOM_SIZE) <= 0
+ || EVP_DigestFinal_ex(ctx, buf, &n) <= 0
+
+ || EVP_DigestInit_ex(ctx, s->ctx->md5, NULL) <= 0
+ || EVP_DigestUpdate(ctx, p, len) <= 0
+ || EVP_DigestUpdate(ctx, buf, n) <= 0
+ || EVP_DigestFinal_ex(ctx, out, &n) <= 0) {
+ SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_INTERNAL_ERROR);
+ ret = 0;
+ break;
+ }
out += n;
ret += n;
}
- EVP_MD_CTX_cleanup(&ctx);
+ EVP_MD_CTX_free(ctx);
#ifdef OPENSSL_SSL_TRACE_CRYPTO
- if (s->msg_callback) {
+ if (ret > 0 && s->msg_callback) {
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_PREMASTER,
p, len, s, s->msg_callback_arg);
s->msg_callback(2, s->version, TLS1_RT_CRYPTO_CLIENT_RANDOM,
s, s->msg_callback_arg);
}
#endif
- OPENSSL_cleanse(buf, sizeof buf);
+ OPENSSL_cleanse(buf, sizeof(buf));
return (ret);
}
return (TLS1_AD_UNKNOWN_PSK_IDENTITY);
case SSL_AD_INAPPROPRIATE_FALLBACK:
return (TLS1_AD_INAPPROPRIATE_FALLBACK);
+ case SSL_AD_NO_APPLICATION_PROTOCOL:
+ return (TLS1_AD_NO_APPLICATION_PROTOCOL);
default:
return (-1);
}
projects / openssl.git / blobdiff