/*
* Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
+ * Copyright 2005 Nokia. 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
* https://www.openssl.org/source/license.html
*/
-/* ====================================================================
- * 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>
+#include "internal/cryptlib.h"
static int ssl3_generate_key_block(SSL *s, unsigned char *km, int num)
{
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) {
+ 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;
+ goto err;
}
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 (!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))
+ goto err;
if ((int)(i + MD5_DIGEST_LENGTH) > num) {
- EVP_DigestFinal_ex(m5, smd, NULL);
+ if (!EVP_DigestFinal_ex(m5, smd, NULL))
+ goto err;
memcpy(km, smd, (num - i));
- } else
- EVP_DigestFinal_ex(m5, km, NULL);
+ } else {
+ if (!EVP_DigestFinal_ex(m5, km, NULL))
+ goto err;
+ }
km += MD5_DIGEST_LENGTH;
}
COMP_METHOD *comp;
#endif
const EVP_MD *m;
- int n, i, j, k, cl;
+ int mdi;
+ size_t n, i, j, k, cl;
int reuse_dd = 0;
c = s->s3->tmp.new_sym_enc;
m = s->s3->tmp.new_hash;
/* m == NULL will lead to a crash later */
- OPENSSL_assert(m);
+ if (!ossl_assert(m != NULL)) {
+ SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
+ goto err2;
+ }
#ifndef OPENSSL_NO_COMP
if (s->s3->tmp.new_compression == NULL)
comp = NULL;
dd = s->enc_read_ctx;
if (ssl_replace_hash(&s->read_hash, m) == NULL) {
- SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
- goto err2;
+ SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
+ goto err2;
}
#ifndef OPENSSL_NO_COMP
/* COMPRESS */
EVP_CIPHER_CTX_reset(s->enc_write_ctx);
dd = s->enc_write_ctx;
if (ssl_replace_hash(&s->write_hash, m) == NULL) {
- SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
- goto err2;
+ SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_INTERNAL_ERROR);
+ goto err2;
}
#ifndef OPENSSL_NO_COMP
/* COMPRESS */
EVP_CIPHER_CTX_reset(dd);
p = s->s3->tmp.key_block;
- i = EVP_MD_size(m);
- if (i < 0)
+ mdi = EVP_MD_size(m);
+ if (mdi < 0)
goto err2;
+ i = mdi;
cl = EVP_CIPHER_key_length(c);
j = cl;
k = EVP_CIPHER_iv_length(c);
memcpy(mac_secret, ms, i);
- EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE));
-
-#ifdef OPENSSL_SSL_TRACE_CRYPTO
- if (s->msg_callback) {
-
- int wh = which & SSL3_CC_WRITE ?
- TLS1_RT_CRYPTO_WRITE : TLS1_RT_CRYPTO_READ;
- s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_MAC,
- mac_secret, EVP_MD_size(m), s, s->msg_callback_arg);
- if (c->key_len)
- s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_KEY,
- key, c->key_len, s, s->msg_callback_arg);
- if (k) {
- s->msg_callback(2, s->version, wh | TLS1_RT_CRYPTO_IV,
- iv, k, s, s->msg_callback_arg);
- }
- }
-#endif
+ if (!EVP_CipherInit_ex(dd, c, NULL, key, iv, (which & SSL3_CC_WRITE)))
+ goto err2;
OPENSSL_cleanse(exp_key, sizeof(exp_key));
OPENSSL_cleanse(exp_iv, sizeof(exp_iv));
- return (1);
+ return 1;
err:
SSLerr(SSL_F_SSL3_CHANGE_CIPHER_STATE, ERR_R_MALLOC_FAILURE);
err2:
SSL_COMP *comp;
if (s->s3->tmp.key_block_length != 0)
- return (1);
+ return 1;
if (!ssl_cipher_get_evp(s->session, &c, &hash, NULL, NULL, &comp, 0)) {
SSLerr(SSL_F_SSL3_SETUP_KEY_BLOCK, SSL_R_CIPHER_OR_HASH_UNAVAILABLE);
s->s3->handshake_dgst = NULL;
}
-void ssl3_finish_mac(SSL *s, const unsigned char *buf, int len)
+int ssl3_finish_mac(SSL *s, const unsigned char *buf, size_t len)
{
- if (s->s3->handshake_dgst == NULL)
- BIO_write(s->s3->handshake_buffer, (void *)buf, len);
- else
- EVP_DigestUpdate(s->s3->handshake_dgst, buf, len);
+ if (s->s3->handshake_dgst == NULL) {
+ int ret;
+ /* Note: this writes to a memory BIO so a failure is a fatal error */
+ if (len > INT_MAX)
+ return 0;
+ ret = BIO_write(s->s3->handshake_buffer, (void *)buf, (int)len);
+ return ret > 0 && ret == (int)len;
+ } else {
+ return EVP_DigestUpdate(s->s3->handshake_dgst, buf, len);
+ }
}
int ssl3_digest_cached_records(SSL *s, int keep)
if (s->s3->handshake_dgst == NULL) {
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);
+ SSLerr(SSL_F_SSL3_DIGEST_CACHED_RECORDS,
+ SSL_R_BAD_HANDSHAKE_LENGTH);
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))
- {
+ 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;
}
return 1;
}
-int ssl3_final_finish_mac(SSL *s, const char *sender, int len, unsigned char *p)
+size_t ssl3_final_finish_mac(SSL *s, const char *sender, size_t len,
+ unsigned char *p)
{
int ret;
EVP_MD_CTX *ctx = NULL;
SSLerr(SSL_F_SSL3_FINAL_FINISH_MAC, ERR_R_MALLOC_FAILURE);
return 0;
}
- EVP_MD_CTX_copy_ex(ctx, s->s3->handshake_dgst);
+ if (!EVP_MD_CTX_copy_ex(ctx, s->s3->handshake_dgst)) {
+ SSLerr(SSL_F_SSL3_FINAL_FINISH_MAC, ERR_R_INTERNAL_ERROR);
+ return 0;
+ }
ret = EVP_MD_CTX_size(ctx);
if (ret < 0) {
}
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) {
+ || EVP_MD_CTX_ctrl(ctx, EVP_CTRL_SSL3_MASTER_SECRET,
+ (int)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;
}
}
int ssl3_generate_master_secret(SSL *s, unsigned char *out, unsigned char *p,
- int len)
+ size_t len, size_t *secret_size)
{
static const unsigned char *salt[3] = {
#ifndef CHARSET_EBCDIC
};
unsigned char buf[EVP_MAX_MD_SIZE];
EVP_MD_CTX *ctx = EVP_MD_CTX_new();
- int i, ret = 0;
+ int i, ret = 1;
unsigned int n;
-#ifdef OPENSSL_SSL_TRACE_CRYPTO
- unsigned char *tmpout = out;
-#endif
+ size_t ret_secret_size = 0;
if (ctx == NULL) {
SSLerr(SSL_F_SSL3_GENERATE_MASTER_SECRET, ERR_R_MALLOC_FAILURE);
}
for (i = 0; i < 3; i++) {
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) {
+ || 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
+ /* TODO(size_t) : convert me */
+ || 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;
+ ret_secret_size += n;
}
EVP_MD_CTX_free(ctx);
-#ifdef OPENSSL_SSL_TRACE_CRYPTO
- 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->s3->client_random, SSL3_RANDOM_SIZE,
- s, s->msg_callback_arg);
- s->msg_callback(2, s->version, TLS1_RT_CRYPTO_SERVER_RANDOM,
- s->s3->server_random, SSL3_RANDOM_SIZE,
- s, s->msg_callback_arg);
- s->msg_callback(2, s->version, TLS1_RT_CRYPTO_MASTER,
- tmpout, SSL3_MASTER_SECRET_SIZE,
- s, s->msg_callback_arg);
- }
-#endif
OPENSSL_cleanse(buf, sizeof(buf));
- return (ret);
+ if (ret)
+ *secret_size = ret_secret_size;
+ return ret;
}
int ssl3_alert_code(int code)
return (TLS1_AD_INAPPROPRIATE_FALLBACK);
case SSL_AD_NO_APPLICATION_PROTOCOL:
return (TLS1_AD_NO_APPLICATION_PROTOCOL);
+ case SSL_AD_CERTIFICATE_REQUIRED:
+ return SSL_AD_HANDSHAKE_FAILURE;
default:
return (-1);
}
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