summaryrefslogtreecommitdiff
path: root/deps/openssl/openssl/crypto/dsa/dsa_ameth.c
diff options
context:
space:
mode:
Diffstat (limited to 'deps/openssl/openssl/crypto/dsa/dsa_ameth.c')
-rw-r--r--deps/openssl/openssl/crypto/dsa/dsa_ameth.c271
1 files changed, 80 insertions, 191 deletions
diff --git a/deps/openssl/openssl/crypto/dsa/dsa_ameth.c b/deps/openssl/openssl/crypto/dsa/dsa_ameth.c
index e22627f851..d4e4066c49 100644
--- a/deps/openssl/openssl/crypto/dsa/dsa_ameth.c
+++ b/deps/openssl/openssl/crypto/dsa/dsa_ameth.c
@@ -1,79 +1,29 @@
/*
- * 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/dsa.h>
+#include "dsa_locl.h"
#include <openssl/bn.h>
-#ifndef OPENSSL_NO_CMS
-# include <openssl/cms.h>
-#endif
-#include "asn1_locl.h"
+#include <openssl/cms.h>
+#include "internal/asn1_int.h"
+#include "internal/evp_int.h"
static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
{
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;
@@ -88,13 +38,13 @@ static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
pm = pstr->data;
pmlen = pstr->length;
- if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen))) {
+ if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL) {
DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
goto err;
}
} else if ((ptype == V_ASN1_NULL) || (ptype == V_ASN1_UNDEF)) {
- if (!(dsa = DSA_new())) {
+ if ((dsa = DSA_new()) == NULL) {
DSAerr(DSA_F_DSA_PUB_DECODE, ERR_R_MALLOC_FAILURE);
goto err;
}
@@ -103,12 +53,12 @@ static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
goto err;
}
- if (!(public_key = d2i_ASN1_INTEGER(NULL, &p, pklen))) {
+ if ((public_key = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL) {
DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_DECODE_ERROR);
goto err;
}
- if (!(dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL))) {
+ if ((dsa->pub_key = ASN1_INTEGER_to_BN(public_key, NULL)) == NULL) {
DSAerr(DSA_F_DSA_PUB_DECODE, DSA_R_BN_DECODE_ERROR);
goto err;
}
@@ -118,10 +68,8 @@ static int dsa_pub_decode(EVP_PKEY *pkey, X509_PUBKEY *pubkey)
return 1;
err:
- if (public_key)
- ASN1_INTEGER_free(public_key);
- if (dsa)
- DSA_free(dsa);
+ ASN1_INTEGER_free(public_key);
+ DSA_free(dsa);
return 0;
}
@@ -133,12 +81,13 @@ static int dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
unsigned char *penc = NULL;
int penclen;
ASN1_STRING *str = NULL;
+ ASN1_INTEGER *pubint = NULL;
ASN1_OBJECT *aobj;
dsa = pkey->pkey.dsa;
if (pkey->save_parameters && dsa->p && dsa->q && dsa->g) {
str = ASN1_STRING_new();
- if (!str) {
+ if (str == NULL) {
DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
goto err;
}
@@ -151,9 +100,15 @@ static int dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
} else
ptype = V_ASN1_UNDEF;
- dsa->write_params = 0;
+ pubint = BN_to_ASN1_INTEGER(dsa->pub_key, NULL);
+
+ if (pubint == NULL) {
+ DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
+ goto err;
+ }
- penclen = i2d_DSAPublicKey(dsa, &penc);
+ penclen = i2d_ASN1_INTEGER(pubint, &penc);
+ ASN1_INTEGER_free(pubint);
if (penclen <= 0) {
DSAerr(DSA_F_DSA_PUB_ENCODE, ERR_R_MALLOC_FAILURE);
@@ -168,10 +123,8 @@ static int dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
return 1;
err:
- if (penc)
- OPENSSL_free(penc);
- if (str)
- ASN1_STRING_free(str);
+ OPENSSL_free(penc);
+ ASN1_STRING_free(str);
return 0;
}
@@ -181,18 +134,17 @@ static int dsa_pub_encode(X509_PUBKEY *pk, const EVP_PKEY *pkey)
* AlgorithmIdentifier the pubkey must be recalculated.
*/
-static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
+static int dsa_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;
BN_CTX *ctx = NULL;
- STACK_OF(ASN1_TYPE) *ndsa = NULL;
DSA *dsa = NULL;
int ret = 0;
@@ -201,63 +153,28 @@ static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
return 0;
X509_ALGOR_get0(NULL, &ptype, &pval, palg);
- /* Check for broken DSA PKCS#8, UGH! */
- if (*p == (V_ASN1_SEQUENCE | V_ASN1_CONSTRUCTED)) {
- ASN1_TYPE *t1, *t2;
- if (!(ndsa = d2i_ASN1_SEQUENCE_ANY(NULL, &p, pklen)))
- goto decerr;
- if (sk_ASN1_TYPE_num(ndsa) != 2)
- goto decerr;
- /*-
- * Handle Two broken types:
- * SEQUENCE {parameters, priv_key}
- * SEQUENCE {pub_key, priv_key}
- */
-
- t1 = sk_ASN1_TYPE_value(ndsa, 0);
- t2 = sk_ASN1_TYPE_value(ndsa, 1);
- if (t1->type == V_ASN1_SEQUENCE) {
- p8->broken = PKCS8_EMBEDDED_PARAM;
- pval = t1->value.ptr;
- } else if (ptype == V_ASN1_SEQUENCE)
- p8->broken = PKCS8_NS_DB;
- else
- goto decerr;
-
- if (t2->type != V_ASN1_INTEGER)
- goto decerr;
-
- privkey = t2->value.integer;
- } else {
- const unsigned char *q = p;
- if (!(privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)))
- goto decerr;
- if (privkey->type == V_ASN1_NEG_INTEGER) {
- p8->broken = PKCS8_NEG_PRIVKEY;
- ASN1_STRING_clear_free(privkey);
- if (!(privkey = d2i_ASN1_UINTEGER(NULL, &q, pklen)))
- goto decerr;
- }
- if (ptype != V_ASN1_SEQUENCE)
- goto decerr;
- }
+ if ((privkey = d2i_ASN1_INTEGER(NULL, &p, pklen)) == NULL)
+ goto decerr;
+ if (privkey->type == V_ASN1_NEG_INTEGER || ptype != V_ASN1_SEQUENCE)
+ goto decerr;
pstr = pval;
pm = pstr->data;
pmlen = pstr->length;
- if (!(dsa = d2i_DSAparams(NULL, &pm, pmlen)))
+ if ((dsa = d2i_DSAparams(NULL, &pm, pmlen)) == NULL)
goto decerr;
/* We have parameters now set private key */
- if (!(dsa->priv_key = ASN1_INTEGER_to_BN(privkey, NULL))) {
+ if ((dsa->priv_key = BN_secure_new()) == NULL
+ || !ASN1_INTEGER_to_BN(privkey, dsa->priv_key)) {
DSAerr(DSA_F_DSA_PRIV_DECODE, DSA_R_BN_ERROR);
goto dsaerr;
}
/* Calculate public key */
- if (!(dsa->pub_key = BN_new())) {
+ if ((dsa->pub_key = BN_new()) == NULL) {
DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
goto dsaerr;
}
- if (!(ctx = BN_CTX_new())) {
+ if ((ctx = BN_CTX_new()) == NULL) {
DSAerr(DSA_F_DSA_PRIV_DECODE, ERR_R_MALLOC_FAILURE);
goto dsaerr;
}
@@ -279,10 +196,7 @@ static int dsa_priv_decode(EVP_PKEY *pkey, PKCS8_PRIV_KEY_INFO *p8)
DSA_free(dsa);
done:
BN_CTX_free(ctx);
- if (ndsa)
- sk_ASN1_TYPE_pop_free(ndsa, ASN1_TYPE_free);
- else
- ASN1_STRING_clear_free(privkey);
+ ASN1_STRING_clear_free(privkey);
return ret;
}
@@ -300,7 +214,7 @@ static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
params = ASN1_STRING_new();
- if (!params) {
+ if (params == NULL) {
DSAerr(DSA_F_DSA_PRIV_ENCODE, ERR_R_MALLOC_FAILURE);
goto err;
}
@@ -332,12 +246,9 @@ static int dsa_priv_encode(PKCS8_PRIV_KEY_INFO *p8, const EVP_PKEY *pkey)
return 1;
err:
- if (dp != NULL)
- OPENSSL_free(dp);
- if (params != NULL)
- ASN1_STRING_free(params);
- if (prkey != NULL)
- ASN1_STRING_clear_free(prkey);
+ OPENSSL_free(dp);
+ ASN1_STRING_free(params);
+ ASN1_STRING_clear_free(prkey);
return 0;
}
@@ -348,7 +259,12 @@ static int int_dsa_size(const EVP_PKEY *pkey)
static int dsa_bits(const EVP_PKEY *pkey)
{
- return BN_num_bits(pkey->pkey.dsa->p);
+ return DSA_bits(pkey->pkey.dsa);
+}
+
+static int dsa_security_bits(const EVP_PKEY *pkey)
+{
+ return DSA_security_bits(pkey->pkey.dsa);
}
static int dsa_missing_parameters(const EVP_PKEY *pkey)
@@ -364,22 +280,25 @@ static int dsa_copy_parameters(EVP_PKEY *to, const EVP_PKEY *from)
{
BIGNUM *a;
+ if (to->pkey.dsa == NULL) {
+ to->pkey.dsa = DSA_new();
+ if (to->pkey.dsa == NULL)
+ return 0;
+ }
+
if ((a = BN_dup(from->pkey.dsa->p)) == NULL)
return 0;
- if (to->pkey.dsa->p != NULL)
- BN_free(to->pkey.dsa->p);
+ BN_free(to->pkey.dsa->p);
to->pkey.dsa->p = a;
if ((a = BN_dup(from->pkey.dsa->q)) == NULL)
return 0;
- if (to->pkey.dsa->q != NULL)
- BN_free(to->pkey.dsa->q);
+ BN_free(to->pkey.dsa->q);
to->pkey.dsa->q = a;
if ((a = BN_dup(from->pkey.dsa->g)) == NULL)
return 0;
- if (to->pkey.dsa->g != NULL)
- BN_free(to->pkey.dsa->g);
+ BN_free(to->pkey.dsa->g);
to->pkey.dsa->g = a;
return 1;
}
@@ -407,22 +326,10 @@ static void int_dsa_free(EVP_PKEY *pkey)
DSA_free(pkey->pkey.dsa);
}
-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 do_dsa_print(BIO *bp, const DSA *x, int off, int ptype)
{
- unsigned char *m = NULL;
int ret = 0;
- size_t buf_len = 0;
const char *ktype = NULL;
-
const BIGNUM *priv_key, *pub_key;
if (ptype == 2)
@@ -442,18 +349,6 @@ static int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype)
else
ktype = "DSA-Parameters";
- update_buflen(x->p, &buf_len);
- update_buflen(x->q, &buf_len);
- update_buflen(x->g, &buf_len);
- update_buflen(priv_key, &buf_len);
- update_buflen(pub_key, &buf_len);
-
- m = (unsigned char *)OPENSSL_malloc(buf_len + 10);
- if (m == NULL) {
- DSAerr(DSA_F_DO_DSA_PRINT, ERR_R_MALLOC_FAILURE);
- goto err;
- }
-
if (priv_key) {
if (!BIO_indent(bp, off, 128))
goto err;
@@ -462,20 +357,18 @@ static int do_dsa_print(BIO *bp, const DSA *x, int off, int ptype)
goto err;
}
- if (!ASN1_bn_print(bp, "priv:", priv_key, m, off))
+ if (!ASN1_bn_print(bp, "priv:", priv_key, NULL, off))
goto err;
- if (!ASN1_bn_print(bp, "pub: ", pub_key, m, off))
+ if (!ASN1_bn_print(bp, "pub: ", pub_key, NULL, off))
goto err;
- if (!ASN1_bn_print(bp, "P: ", x->p, m, off))
+ if (!ASN1_bn_print(bp, "P: ", x->p, NULL, off))
goto err;
- if (!ASN1_bn_print(bp, "Q: ", x->q, m, off))
+ if (!ASN1_bn_print(bp, "Q: ", x->q, NULL, off))
goto err;
- if (!ASN1_bn_print(bp, "G: ", x->g, m, off))
+ if (!ASN1_bn_print(bp, "G: ", x->g, NULL, off))
goto err;
ret = 1;
err:
- if (m != NULL)
- OPENSSL_free(m);
return (ret);
}
@@ -483,7 +376,8 @@ static int dsa_param_decode(EVP_PKEY *pkey,
const unsigned char **pder, int derlen)
{
DSA *dsa;
- if (!(dsa = d2i_DSAparams(NULL, pder, derlen))) {
+
+ if ((dsa = d2i_DSAparams(NULL, pder, derlen)) == NULL) {
DSAerr(DSA_F_DSA_PARAM_DECODE, ERR_R_DSA_LIB);
return 0;
}
@@ -518,7 +412,8 @@ static int old_dsa_priv_decode(EVP_PKEY *pkey,
const unsigned char **pder, int derlen)
{
DSA *dsa;
- if (!(dsa = d2i_DSAPrivateKey(NULL, pder, derlen))) {
+
+ if ((dsa = d2i_DSAPrivateKey(NULL, pder, derlen)) == NULL) {
DSAerr(DSA_F_OLD_DSA_PRIV_DECODE, ERR_R_DSA_LIB);
return 0;
}
@@ -536,6 +431,7 @@ static int dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg,
{
DSA_SIG *dsa_sig;
const unsigned char *p;
+
if (!sig) {
if (BIO_puts(bp, "\n") <= 0)
return 0;
@@ -546,27 +442,19 @@ static int dsa_sig_print(BIO *bp, const X509_ALGOR *sigalg,
dsa_sig = d2i_DSA_SIG(NULL, &p, sig->length);
if (dsa_sig) {
int rv = 0;
- size_t buf_len = 0;
- unsigned char *m = NULL;
- update_buflen(dsa_sig->r, &buf_len);
- update_buflen(dsa_sig->s, &buf_len);
- m = OPENSSL_malloc(buf_len + 10);
- if (m == NULL) {
- DSAerr(DSA_F_DSA_SIG_PRINT, ERR_R_MALLOC_FAILURE);
- goto err;
- }
+ const BIGNUM *r, *s;
+
+ DSA_SIG_get0(dsa_sig, &r, &s);
if (BIO_write(bp, "\n", 1) != 1)
goto err;
- if (!ASN1_bn_print(bp, "r: ", dsa_sig->r, m, indent))
+ if (!ASN1_bn_print(bp, "r: ", r, NULL, indent))
goto err;
- if (!ASN1_bn_print(bp, "s: ", dsa_sig->s, m, indent))
+ if (!ASN1_bn_print(bp, "s: ", s, NULL, indent))
goto err;
rv = 1;
err:
- if (m)
- OPENSSL_free(m);
DSA_SIG_free(dsa_sig);
return rv;
}
@@ -626,7 +514,7 @@ static int dsa_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
/* NB these are sorted in pkey_id order, lowest first */
-const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] = {
+const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[5] = {
{
EVP_PKEY_DSA2,
@@ -667,6 +555,7 @@ const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[] = {
int_dsa_size,
dsa_bits,
+ dsa_security_bits,
dsa_param_decode,
dsa_param_encode,
generated by cgit v1.2.3 (git 2.39.1) at 2024-05-20 17:07:01 +0000