/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 2006.
- */
-/* ====================================================================
- * Copyright (c) 2006 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
- * licensing@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 2006-2016 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
*/
#include <stdio.h>
-#include "cryptlib.h"
+#include "internal/cryptlib.h"
#include <openssl/x509.h>
#include <openssl/asn1.h>
-#include <openssl/dh.h>
+#include "dh_locl.h"
#include <openssl/bn.h>
-#include "asn1_locl.h"
-#ifndef OPENSSL_NO_CMS
-# include <openssl/cms.h>
-#endif
-
-extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth;
+#include "internal/asn1_int.h"
+#include "internal/evp_int.h"
+#include <openssl/cms.h>
/*
* i2d/d2i like DH parameter functions which use the appropriate routine for
const unsigned char *p, *pm;
int pklen, pmlen;
int ptype;
- void *pval;
- ASN1_STRING *pstr;
+ const void *pval;
+ const ASN1_STRING *pstr;
X509_ALGOR *palg;
ASN1_INTEGER *public_key = NULL;
pm = pstr->data;
pmlen = pstr->length;
- if (!(dh = d2i_dhp(pkey, &pm, pmlen))) {
+ if ((dh = d2i_dhp(pkey, &pm, pmlen)) == NULL) {
DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR);
goto err;
}
- if (!(public_key = d2i_ASN1_INTEGER(NULL, &p, pklen))) {
+ if ((public_key = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL) {
DHerr(DH_F_DH_PUB_DECODE, DH_R_DECODE_ERROR);
goto err;
}
/* We have parameters now set public key */
- if (!(dh->pub_key = ASN1_INTEGER_to_BN(public_key, NULL))) {
+ if ((dh->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)) == NULL) {
DHerr(DH_F_DH_PUB_DECODE, DH_R_BN_DECODE_ERROR);
goto err;
}
return 1;
err:
- if (public_key)
- ASN1_INTEGER_free(public_key);
- if (dh)
- DH_free(dh);
+ ASN1_INTEGER_free(public_key);
+ DH_free(dh);
return 0;
}
static int dh_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
{
DH *dh;
- void *pval = NULL;
int ptype;
unsigned char *penc = NULL;
int penclen;
dh = pkey->pkey.dh;
str = ASN1_STRING_new();
+ if (str == NULL) {
+ DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
str->length = i2d_dhp(pkey, dh, &str->data);
if (str->length <= 0) {
DHerr(DH_F_DH_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
goto err;
}
- pval = str;
ptype = V_ASN1_SEQUENCE;
pub_key = BN_to_ASN1_INTEGER(dh->pub_key, NULL);
}
if (X509_PUBKEY_set0_param(pk, OBJ_nid2obj(pkey->ameth->pkey_id),
- ptype, pval, penc, penclen))
+ ptype, str, penc, penclen))
return 1;
err:
- if (penc)
- OPENSSL_free(penc);
- if (pval)
- ASN1_STRING_free(pval);
+ OPENSSL_free(penc);
+ ASN1_STRING_free(str);
return 0;
}
/*
* PKCS#8 DH is defined in PKCS#11 of all places. It is similar to DH in that
* the AlgorithmIdentifier contains the parameters, the private key is
- * explcitly included and the pubkey must be recalculated.
+ * explicitly included and the pubkey must be recalculated.
*/
-static int dh_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
+static int dh_priv_decode(EVP_PKEY *pkey, const PKCS8_PRIV_KEY_INFO *p8)
{
const unsigned char *p, *pm;
int pklen, pmlen;
int ptype;
- void *pval;
- ASN1_STRING *pstr;
- X509_ALGOR *palg;
+ const void *pval;
+ const ASN1_STRING *pstr;
+ const X509_ALGOR *palg;
ASN1_INTEGER *privkey = NULL;
DH *dh = NULL;
if (ptype != V_ASN1_SEQUENCE)
goto decerr;
-
- if (!(privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)))
+ if ((privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL)
goto decerr;
pstr = pval;
pm = pstr->data;
pmlen = pstr->length;
- if (!(dh = d2i_dhp(pkey, &pm, pmlen)))
+ if ((dh = d2i_dhp(pkey, &pm, pmlen)) == NULL)
goto decerr;
+
/* We have parameters now set private key */
- if (!(dh->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
+ if ((dh->priv_key = BN_secure_new()) == NULL
+ || !ASN1_INTEGER_to_BN(privkey, dh->priv_key)) {
DHerr(DH_F_DH_PRIV_DECODE, DH_R_BN_ERROR);
goto dherr;
}
EVP_PKEY_assign(pkey, pkey->ameth->pkey_id, dh);
- ASN1_INTEGER_free(privkey);
+ ASN1_STRING_clear_free(privkey);
return 1;
DHerr(DH_F_DH_PRIV_DECODE, EVP_R_DECODE_ERROR);
dherr:
DH_free(dh);
+ ASN1_STRING_clear_free(privkey);
return 0;
}
params = ASN1_STRING_new();
- if (!params) {
+ if (params == NULL) {
DHerr(DH_F_DH_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
goto err;
}
dplen = i2d_ASN1_INTEGER(prkey, &dp);
- ASN1_INTEGER_free(prkey);
+ ASN1_STRING_clear_free(prkey);
prkey = NULL;
if (!PKCS8_pkey_set0(p8, OBJ_nid2obj(pkey->ameth->pkey_id), 0,
return 1;
err:
- if (dp != NULL)
- OPENSSL_free(dp);
- if (params != NULL)
- ASN1_STRING_free(params);
- if (prkey != NULL)
- ASN1_INTEGER_free(prkey);
+ OPENSSL_free(dp);
+ ASN1_STRING_free(params);
+ ASN1_STRING_clear_free(prkey);
return 0;
}
-static void update_buflen(const BIGNUM *b, size_t *pbuflen)
-{
- size_t i;
- if (!b)
- return;
- if (*pbuflen < (i = (size_t)BN_num_bytes(b)))
- *pbuflen = i;
-}
-
static int dh_param_decode(EVP_PKEY *pkey,
const unsigned char **pder, int derlen)
{
DH *dh;
- if (!(dh = d2i_dhp(pkey, pder, derlen))) {
+
+ if ((dh = d2i_dhp(pkey, pder, derlen)) == NULL) {
DHerr(DH_F_DH_PARAM_DECODE, ERR_R_DH_LIB);
return 0;
}
return i2d_dhp(pkey, pkey->pkey.dh, pder);
}
-static int do_dh_print(BIO *bp, const DH *x, int indent,
- ASN1_PCTX *ctx, int ptype)
+static int do_dh_print(BIO *bp, const DH *x, int indent, int ptype)
{
- unsigned char *m = NULL;
- int reason = ERR_R_BUF_LIB, ret = 0;
- size_t buf_len = 0;
-
+ int reason = ERR_R_BUF_LIB;
const char *ktype = NULL;
-
BIGNUM *priv_key, *pub_key;
if (ptype == 2)
else
pub_key = NULL;
- update_buflen(x->p, &buf_len);
-
- if (buf_len == 0) {
+ if (x->p == NULL || (ptype == 2 && priv_key == NULL)
+ || (ptype > 0 && pub_key == NULL)) {
reason = ERR_R_PASSED_NULL_PARAMETER;
goto err;
}
- update_buflen(x->g, &buf_len);
- update_buflen(x->q, &buf_len);
- update_buflen(x->j, &buf_len);
- update_buflen(x->counter, &buf_len);
- update_buflen(pub_key, &buf_len);
- update_buflen(priv_key, &buf_len);
-
if (ptype == 2)
ktype = "DH Private-Key";
else if (ptype == 1)
else
ktype = "DH Parameters";
- m = OPENSSL_malloc(buf_len + 10);
- if (m == NULL) {
- reason = ERR_R_MALLOC_FAILURE;
- goto err;
- }
-
BIO_indent(bp, indent, 128);
if (BIO_printf(bp, "%s: (%d bit)\n", ktype, BN_num_bits(x->p)) <= 0)
goto err;
indent += 4;
- if (!ASN1_bn_print(bp, "private-key:", priv_key, m, indent))
+ if (!ASN1_bn_print(bp, "private-key:", priv_key, NULL, indent))
goto err;
- if (!ASN1_bn_print(bp, "public-key:", pub_key, m, indent))
+ if (!ASN1_bn_print(bp, "public-key:", pub_key, NULL, indent))
goto err;
- if (!ASN1_bn_print(bp, "prime:", x->p, m, indent))
+ if (!ASN1_bn_print(bp, "prime:", x->p, NULL, indent))
goto err;
- if (!ASN1_bn_print(bp, "generator:", x->g, m, indent))
+ if (!ASN1_bn_print(bp, "generator:", x->g, NULL, indent))
goto err;
- if (x->q && !ASN1_bn_print(bp, "subgroup order:", x->q, m, indent))
+ if (x->q && !ASN1_bn_print(bp, "subgroup order:", x->q, NULL, indent))
goto err;
- if (x->j && !ASN1_bn_print(bp, "subgroup factor:", x->j, m, indent))
+ if (x->j && !ASN1_bn_print(bp, "subgroup factor:", x->j, NULL, indent))
goto err;
if (x->seed) {
int i;
goto err;
}
if (BIO_write(bp, "\n", 1) <= 0)
- return (0);
+ return 0;
}
- if (x->counter && !ASN1_bn_print(bp, "counter:", x->counter, m, indent))
+ if (x->counter && !ASN1_bn_print(bp, "counter:", x->counter, NULL, indent))
goto err;
if (x->length != 0) {
BIO_indent(bp, indent, 128);
goto err;
}
- ret = 1;
- if (0) {
+ return 1;
+
err:
- DHerr(DH_F_DO_DH_PRINT, reason);
- }
- if (m != NULL)
- OPENSSL_free(m);
- return (ret);
+ DHerr(DH_F_DO_DH_PRINT, reason);
+ return 0;
}
static int int_dh_size(const EVP_PKEY *pkey)
{
- return (DH_size(pkey->pkey.dh));
+ return DH_size(pkey->pkey.dh);
}
static int dh_bits(const EVP_PKEY *pkey)
static int int_dh_bn_cpy(BIGNUM **dst, const BIGNUM *src)
{
BIGNUM *a;
- if (src) {
- a = BN_dup(src);
- if (!a)
- return 0;
- } else
+
+ /*
+ * If source is read only just copy the pointer, so
+ * we don't have to reallocate it.
+ */
+ if (src == NULL)
a = NULL;
- if (*dst)
- BN_free(*dst);
+ else if (BN_get_flags(src, BN_FLG_STATIC_DATA)
+ && !BN_get_flags(src, BN_FLG_MALLOCED))
+ a = (BIGNUM *)src;
+ else if ((a = BN_dup(src)) == NULL)
+ return 0;
+ BN_clear_free(*dst);
*dst = a;
return 1;
}
return 0;
if (!int_dh_bn_cpy(&to->j, from->j))
return 0;
- if (to->seed) {
- OPENSSL_free(to->seed);
- to->seed = NULL;
- to->seedlen = 0;
- }
+ OPENSSL_free(to->seed);
+ to->seed = NULL;
+ to->seedlen = 0;
if (from->seed) {
- to->seed = BUF_memdup(from->seed, from->seedlen);
+ to->seed = OPENSSL_memdup(from->seed, from->seedlen);
if (!to->seed)
return 0;
to->seedlen = from->seedlen;
{
DH *ret;
ret = DH_new();
- if (!ret)
+ if (ret == NULL)
return NULL;
if (!int_dh_param_copy(ret, dh, -1)) {
DH_free(ret);
static int dh_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
{
+ if (to->pkey.dh == NULL) {
+ to->pkey.dh = DH_new();
+ if (to->pkey.dh == NULL)
+ return 0;
+ }
return int_dh_param_copy(to->pkey.dh, from->pkey.dh,
from->ameth == &dhx_asn1_meth);
}
static int dh_missing_parameters(const EVP_PKEY *a)
{
- if (!a->pkey.dh->p || !a->pkey.dh->g)
+ if (a->pkey.dh == NULL || a->pkey.dh->p == NULL || a->pkey.dh->g == NULL)
return 1;
return 0;
}
static int dh_param_print(BIO *bp, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *ctx)
{
- return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 0);
+ return do_dh_print(bp, pkey->pkey.dh, indent, 0);
}
static int dh_public_print(BIO *bp, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *ctx)
{
- return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 1);
+ return do_dh_print(bp, pkey->pkey.dh, indent, 1);
}
static int dh_private_print(BIO *bp, const EVP_PKEY *pkey, int indent,
ASN1_PCTX *ctx)
{
- return do_dh_print(bp, pkey->pkey.dh, indent, ctx, 2);
+ return do_dh_print(bp, pkey->pkey.dh, indent, 2);
}
int DHparams_print(BIO *bp, const DH *x)
{
- return do_dh_print(bp, x, 4, NULL, 0);
+ return do_dh_print(bp, x, 4, 0);
}
#ifndef OPENSSL_NO_CMS
}
+static int dh_pkey_public_check(const EVP_PKEY *pkey)
+{
+ DH *dh = pkey->pkey.dh;
+
+ if (dh->pub_key == NULL) {
+ DHerr(DH_F_DH_PKEY_PUBLIC_CHECK, DH_R_MISSING_PUBKEY);
+ return 0;
+ }
+
+ return DH_check_pub_key_ex(dh, dh->pub_key);
+}
+
+static int dh_pkey_param_check(const EVP_PKEY *pkey)
+{
+ DH *dh = pkey->pkey.dh;
+
+ return DH_check_ex(dh);
+}
+
const EVP_PKEY_ASN1_METHOD dh_asn1_meth = {
EVP_PKEY_DH,
EVP_PKEY_DH,
0,
int_dh_free,
- 0
+ 0,
+
+ 0, 0, 0, 0, 0,
+
+ 0,
+ dh_pkey_public_check,
+ dh_pkey_param_check
};
const EVP_PKEY_ASN1_METHOD dhx_asn1_meth = {
0,
int_dh_free,
- dh_pkey_ctrl
+ dh_pkey_ctrl,
+
+ 0, 0, 0, 0, 0,
+
+ 0,
+ dh_pkey_public_check,
+ dh_pkey_param_check
};
#ifndef OPENSSL_NO_CMS
static int dh_cms_set_peerkey(EVP_PKEY_CTX *pctx,
X509_ALGOR *alg, ASN1_BIT_STRING *pubkey)
{
- ASN1_OBJECT *aoid;
+ const ASN1_OBJECT *aoid;
int atype;
- void *aval;
+ const void *aval;
ASN1_INTEGER *public_key = NULL;
int rv = 0;
EVP_PKEY *pkpeer = NULL, *pk = NULL;
dhpeer = DHparams_dup(pk->pkey.dh);
/* We have parameters now set public key */
plen = ASN1_STRING_length(pubkey);
- p = ASN1_STRING_data(pubkey);
+ p = ASN1_STRING_get0_data(pubkey);
if (!p || !plen)
goto err;
- if (!(public_key = d2i_ASN1_INTEGER(NULL, &p, plen))) {
+ if ((public_key = d2i_ASN1_INTEGER(NULL, &p, plen)) == NULL) {
DHerr(DH_F_DH_CMS_SET_PEERKEY, DH_R_DECODE_ERROR);
goto err;
}
/* We have parameters now set public key */
- if (!(dhpeer->pub_key = ASN1_INTEGER_to_BN(public_key, NULL))) {
+ if ((dhpeer->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)) == NULL) {
DHerr(DH_F_DH_CMS_SET_PEERKEY, DH_R_BN_DECODE_ERROR);
goto err;
}
pkpeer = EVP_PKEY_new();
- if (!pkpeer)
+ if (pkpeer == NULL)
goto err;
EVP_PKEY_assign(pkpeer, pk->ameth->pkey_id, dhpeer);
dhpeer = NULL;
if (EVP_PKEY_derive_set_peer(pctx, pkpeer) > 0)
rv = 1;
err:
- if (public_key)
- ASN1_INTEGER_free(public_key);
- if (pkpeer)
- EVP_PKEY_free(pkpeer);
- if (dhpeer)
- DH_free(dhpeer);
+ ASN1_INTEGER_free(public_key);
+ EVP_PKEY_free(pkpeer);
+ DH_free(dhpeer);
return rv;
}
if (ukm) {
dukmlen = ASN1_STRING_length(ukm);
- dukm = BUF_memdup(ASN1_STRING_data(ukm), dukmlen);
+ dukm = OPENSSL_memdup(ASN1_STRING_get0_data(ukm), dukmlen);
if (!dukm)
goto err;
}
rv = 1;
err:
- if (kekalg)
- X509_ALGOR_free(kekalg);
- if (dukm)
- OPENSSL_free(dukm);
+ X509_ALGOR_free(kekalg);
+ OPENSSL_free(dukm);
return rv;
}
EVP_CIPHER_CTX *ctx;
int keylen;
X509_ALGOR *talg, *wrap_alg = NULL;
- ASN1_OBJECT *aoid;
+ const ASN1_OBJECT *aoid;
ASN1_BIT_STRING *pubkey;
ASN1_STRING *wrap_str;
ASN1_OCTET_STRING *ukm;
X509_ALGOR_get0(&aoid, NULL, NULL, talg);
/* Is everything uninitialised? */
if (aoid == OBJ_nid2obj(NID_undef)) {
- ASN1_INTEGER *pubk;
- pubk = BN_to_ASN1_INTEGER(pkey->pkey.dh->pub_key, NULL);
+ ASN1_INTEGER *pubk = BN_to_ASN1_INTEGER(pkey->pkey.dh->pub_key, NULL);
if (!pubk)
goto err;
/* Set the key */
V_ASN1_UNDEF, NULL);
}
- /* See if custom paraneters set */
+ /* See if custom parameters set */
kdf_type = EVP_PKEY_CTX_get_dh_kdf_type(pctx);
if (kdf_type <= 0)
goto err;
/* Package wrap algorithm in an AlgorithmIdentifier */
wrap_alg = X509_ALGOR_new();
- if (!wrap_alg)
+ if (wrap_alg == NULL)
goto err;
wrap_alg->algorithm = OBJ_nid2obj(wrap_nid);
wrap_alg->parameter = ASN1_TYPE_new();
- if (!wrap_alg->parameter)
+ if (wrap_alg->parameter == NULL)
goto err;
if (EVP_CIPHER_param_to_asn1(ctx, wrap_alg->parameter) <= 0)
goto err;
if (ukm) {
dukmlen = ASN1_STRING_length(ukm);
- dukm = BUF_memdup(ASN1_STRING_data(ukm), dukmlen);
+ dukm = OPENSSL_memdup(ASN1_STRING_get0_data(ukm), dukmlen);
if (!dukm)
goto err;
}
if (!penc || !penclen)
goto err;
wrap_str = ASN1_STRING_new();
- if (!wrap_str)
+ if (wrap_str == NULL)
goto err;
ASN1_STRING_set0(wrap_str, penc, penclen);
penc = NULL;
rv = 1;
err:
- if (penc)
- OPENSSL_free(penc);
- if (wrap_alg)
- X509_ALGOR_free(wrap_alg);
+ OPENSSL_free(penc);
+ X509_ALGOR_free(wrap_alg);
return rv;
}
projects / openssl.git / blobdiff