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-rw-r--r--crypto/asn1/ameth_lib.c289
1 files changed, 125 insertions, 164 deletions
diff --git a/crypto/asn1/ameth_lib.c b/crypto/asn1/ameth_lib.c
index 43ddebba33a6..9a1644148af5 100644
--- a/crypto/asn1/ameth_lib.c
+++ b/crypto/asn1/ameth_lib.c
@@ -1,122 +1,26 @@
/*
- * 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 2006-2018 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 "e_os.h" /* for strncasecmp */
+#include "internal/cryptlib.h"
#include <stdio.h>
-#include "cryptlib.h"
#include <openssl/asn1t.h>
#include <openssl/x509.h>
-#ifndef OPENSSL_NO_ENGINE
-# include <openssl/engine.h>
-#endif
-#include "asn1_locl.h"
-
-extern const EVP_PKEY_ASN1_METHOD rsa_asn1_meths[];
-extern const EVP_PKEY_ASN1_METHOD dsa_asn1_meths[];
-extern const EVP_PKEY_ASN1_METHOD dh_asn1_meth;
-extern const EVP_PKEY_ASN1_METHOD dhx_asn1_meth;
-extern const EVP_PKEY_ASN1_METHOD eckey_asn1_meth;
-extern const EVP_PKEY_ASN1_METHOD hmac_asn1_meth;
-extern const EVP_PKEY_ASN1_METHOD cmac_asn1_meth;
-
-/* Keep this sorted in type order !! */
-static const EVP_PKEY_ASN1_METHOD *standard_methods[] = {
-#ifndef OPENSSL_NO_RSA
- &rsa_asn1_meths[0],
- &rsa_asn1_meths[1],
-#endif
-#ifndef OPENSSL_NO_DH
- &dh_asn1_meth,
-#endif
-#ifndef OPENSSL_NO_DSA
- &dsa_asn1_meths[0],
- &dsa_asn1_meths[1],
- &dsa_asn1_meths[2],
- &dsa_asn1_meths[3],
- &dsa_asn1_meths[4],
-#endif
-#ifndef OPENSSL_NO_EC
- &eckey_asn1_meth,
-#endif
- &hmac_asn1_meth,
-#ifndef OPENSSL_NO_CMAC
- &cmac_asn1_meth,
-#endif
-#ifndef OPENSSL_NO_DH
- &dhx_asn1_meth
-#endif
-};
+#include <openssl/engine.h>
+#include "internal/asn1_int.h"
+#include "internal/evp_int.h"
+
+#include "standard_methods.h"
typedef int sk_cmp_fn_type(const char *const *a, const char *const *b);
-DECLARE_STACK_OF(EVP_PKEY_ASN1_METHOD)
static STACK_OF(EVP_PKEY_ASN1_METHOD) *app_methods = NULL;
-#ifdef TEST
-void main()
-{
- int i;
- for (i = 0;
- i < sizeof(standard_methods) / sizeof(EVP_PKEY_ASN1_METHOD *); i++)
- fprintf(stderr, "Number %d id=%d (%s)\n", i,
- standard_methods[i]->pkey_id,
- OBJ_nid2sn(standard_methods[i]->pkey_id));
-}
-#endif
-
DECLARE_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
const EVP_PKEY_ASN1_METHOD *, ameth);
@@ -131,7 +35,7 @@ IMPLEMENT_OBJ_BSEARCH_CMP_FN(const EVP_PKEY_ASN1_METHOD *,
int EVP_PKEY_asn1_get_count(void)
{
- int num = sizeof(standard_methods) / sizeof(EVP_PKEY_ASN1_METHOD *);
+ int num = OSSL_NELEM(standard_methods);
if (app_methods)
num += sk_EVP_PKEY_ASN1_METHOD_num(app_methods);
return num;
@@ -139,7 +43,7 @@ int EVP_PKEY_asn1_get_count(void)
const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_get0(int idx)
{
- int num = sizeof(standard_methods) / sizeof(EVP_PKEY_ASN1_METHOD *);
+ int num = OSSL_NELEM(standard_methods);
if (idx < 0)
return NULL;
if (idx < num)
@@ -159,8 +63,7 @@ static const EVP_PKEY_ASN1_METHOD *pkey_asn1_find(int type)
if (idx >= 0)
return sk_EVP_PKEY_ASN1_METHOD_value(app_methods, idx);
}
- ret = OBJ_bsearch_ameth(&t, standard_methods, sizeof(standard_methods)
- / sizeof(EVP_PKEY_ASN1_METHOD *));
+ ret = OBJ_bsearch_ameth(&t, standard_methods, OSSL_NELEM(standard_methods));
if (!ret || !*ret)
return NULL;
return *ret;
@@ -201,7 +104,8 @@ const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
const char *str, int len)
{
int i;
- const EVP_PKEY_ASN1_METHOD *ameth;
+ const EVP_PKEY_ASN1_METHOD *ameth = NULL;
+
if (len == -1)
len = strlen(str);
if (pe) {
@@ -221,12 +125,12 @@ const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
#endif
*pe = NULL;
}
- for (i = 0; i < EVP_PKEY_asn1_get_count(); i++) {
+ for (i = EVP_PKEY_asn1_get_count(); i-- > 0; ) {
ameth = EVP_PKEY_asn1_get0(i);
if (ameth->pkey_flags & ASN1_PKEY_ALIAS)
continue;
- if (((int)strlen(ameth->pem_str) == len) &&
- !strncasecmp(ameth->pem_str, str, len))
+ if ((int)strlen(ameth->pem_str) == len
+ && strncasecmp(ameth->pem_str, str, len) == 0)
return ameth;
}
return NULL;
@@ -234,11 +138,21 @@ const EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_find_str(ENGINE **pe,
int EVP_PKEY_asn1_add0(const EVP_PKEY_ASN1_METHOD *ameth)
{
+ EVP_PKEY_ASN1_METHOD tmp = { 0, };
+
if (app_methods == NULL) {
app_methods = sk_EVP_PKEY_ASN1_METHOD_new(ameth_cmp);
- if (!app_methods)
+ if (app_methods == NULL)
return 0;
}
+
+ tmp.pkey_id = ameth->pkey_id;
+ if (sk_EVP_PKEY_ASN1_METHOD_find(app_methods, &tmp) >= 0) {
+ EVPerr(EVP_F_EVP_PKEY_ASN1_ADD0,
+ EVP_R_PKEY_APPLICATION_ASN1_METHOD_ALREADY_REGISTERED);
+ return 0;
+ }
+
if (!sk_EVP_PKEY_ASN1_METHOD_push(app_methods, ameth))
return 0;
sk_EVP_PKEY_ASN1_METHOD_sort(app_methods);
@@ -249,7 +163,7 @@ int EVP_PKEY_asn1_add_alias(int to, int from)
{
EVP_PKEY_ASN1_METHOD *ameth;
ameth = EVP_PKEY_asn1_new(from, ASN1_PKEY_ALIAS, NULL, NULL);
- if (!ameth)
+ if (ameth == NULL)
return 0;
ameth->pkey_base_id = to;
if (!EVP_PKEY_asn1_add0(ameth)) {
@@ -279,7 +193,7 @@ int EVP_PKEY_asn1_get0_info(int *ppkey_id, int *ppkey_base_id,
return 1;
}
-const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(EVP_PKEY *pkey)
+const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(const EVP_PKEY *pkey)
{
return pkey->ameth;
}
@@ -287,63 +201,42 @@ const EVP_PKEY_ASN1_METHOD *EVP_PKEY_get0_asn1(EVP_PKEY *pkey)
EVP_PKEY_ASN1_METHOD *EVP_PKEY_asn1_new(int id, int flags,
const char *pem_str, const char *info)
{
- EVP_PKEY_ASN1_METHOD *ameth;
- ameth = OPENSSL_malloc(sizeof(EVP_PKEY_ASN1_METHOD));
- if (!ameth)
- return NULL;
+ EVP_PKEY_ASN1_METHOD *ameth = OPENSSL_zalloc(sizeof(*ameth));
- memset(ameth, 0, sizeof(EVP_PKEY_ASN1_METHOD));
+ if (ameth == NULL)
+ return NULL;
ameth->pkey_id = id;
ameth->pkey_base_id = id;
ameth->pkey_flags = flags | ASN1_PKEY_DYNAMIC;
if (info) {
- ameth->info = BUF_strdup(info);
+ ameth->info = OPENSSL_strdup(info);
if (!ameth->info)
goto err;
- } else
- ameth->info = NULL;
+ }
+
+ /*
+ * One of the following must be true:
+ *
+ * pem_str == NULL AND ASN1_PKEY_ALIAS is set
+ * pem_str != NULL AND ASN1_PKEY_ALIAS is clear
+ *
+ * Anything else is an error and may lead to a corrupt ASN1 method table
+ */
+ if (!((pem_str == NULL && (flags & ASN1_PKEY_ALIAS) != 0)
+ || (pem_str != NULL && (flags & ASN1_PKEY_ALIAS) == 0)))
+ goto err;
if (pem_str) {
- ameth->pem_str = BUF_strdup(pem_str);
+ ameth->pem_str = OPENSSL_strdup(pem_str);
if (!ameth->pem_str)
goto err;
- } else
- ameth->pem_str = NULL;
-
- ameth->pub_decode = 0;
- ameth->pub_encode = 0;
- ameth->pub_cmp = 0;
- ameth->pub_print = 0;
-
- ameth->priv_decode = 0;
- ameth->priv_encode = 0;
- ameth->priv_print = 0;
-
- ameth->old_priv_encode = 0;
- ameth->old_priv_decode = 0;
-
- ameth->item_verify = 0;
- ameth->item_sign = 0;
-
- ameth->pkey_size = 0;
- ameth->pkey_bits = 0;
-
- ameth->param_decode = 0;
- ameth->param_encode = 0;
- ameth->param_missing = 0;
- ameth->param_copy = 0;
- ameth->param_cmp = 0;
- ameth->param_print = 0;
-
- ameth->pkey_free = 0;
- ameth->pkey_ctrl = 0;
+ }
return ameth;
err:
-
EVP_PKEY_asn1_free(ameth);
return NULL;
@@ -381,15 +274,17 @@ void EVP_PKEY_asn1_copy(EVP_PKEY_ASN1_METHOD *dst,
dst->item_sign = src->item_sign;
dst->item_verify = src->item_verify;
+ dst->siginf_set = src->siginf_set;
+
+ dst->pkey_check = src->pkey_check;
+
}
void EVP_PKEY_asn1_free(EVP_PKEY_ASN1_METHOD *ameth)
{
if (ameth && (ameth->pkey_flags & ASN1_PKEY_DYNAMIC)) {
- if (ameth->pem_str)
- OPENSSL_free(ameth->pem_str);
- if (ameth->info)
- OPENSSL_free(ameth->info);
+ OPENSSL_free(ameth->pem_str);
+ OPENSSL_free(ameth->info);
OPENSSL_free(ameth);
}
}
@@ -417,7 +312,7 @@ void EVP_PKEY_asn1_set_public(EVP_PKEY_ASN1_METHOD *ameth,
void EVP_PKEY_asn1_set_private(EVP_PKEY_ASN1_METHOD *ameth,
int (*priv_decode) (EVP_PKEY *pk,
- PKCS8_PRIV_KEY_INFO
+ const PKCS8_PRIV_KEY_INFO
*p8inf),
int (*priv_encode) (PKCS8_PRIV_KEY_INFO *p8,
const EVP_PKEY *pk),
@@ -467,6 +362,13 @@ void EVP_PKEY_asn1_set_ctrl(EVP_PKEY_ASN1_METHOD *ameth,
ameth->pkey_ctrl = pkey_ctrl;
}
+void EVP_PKEY_asn1_set_security_bits(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*pkey_security_bits) (const EVP_PKEY
+ *pk))
+{
+ ameth->pkey_security_bits = pkey_security_bits;
+}
+
void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
int (*item_verify) (EVP_MD_CTX *ctx,
const ASN1_ITEM *it,
@@ -484,3 +386,62 @@ void EVP_PKEY_asn1_set_item(EVP_PKEY_ASN1_METHOD *ameth,
ameth->item_sign = item_sign;
ameth->item_verify = item_verify;
}
+
+void EVP_PKEY_asn1_set_siginf(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*siginf_set) (X509_SIG_INFO *siginf,
+ const X509_ALGOR *alg,
+ const ASN1_STRING *sig))
+{
+ ameth->siginf_set = siginf_set;
+}
+
+void EVP_PKEY_asn1_set_check(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*pkey_check) (const EVP_PKEY *pk))
+{
+ ameth->pkey_check = pkey_check;
+}
+
+void EVP_PKEY_asn1_set_public_check(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*pkey_pub_check) (const EVP_PKEY *pk))
+{
+ ameth->pkey_public_check = pkey_pub_check;
+}
+
+void EVP_PKEY_asn1_set_param_check(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*pkey_param_check) (const EVP_PKEY *pk))
+{
+ ameth->pkey_param_check = pkey_param_check;
+}
+
+void EVP_PKEY_asn1_set_set_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*set_priv_key) (EVP_PKEY *pk,
+ const unsigned char
+ *priv,
+ size_t len))
+{
+ ameth->set_priv_key = set_priv_key;
+}
+
+void EVP_PKEY_asn1_set_set_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*set_pub_key) (EVP_PKEY *pk,
+ const unsigned char *pub,
+ size_t len))
+{
+ ameth->set_pub_key = set_pub_key;
+}
+
+void EVP_PKEY_asn1_set_get_priv_key(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*get_priv_key) (const EVP_PKEY *pk,
+ unsigned char *priv,
+ size_t *len))
+{
+ ameth->get_priv_key = get_priv_key;
+}
+
+void EVP_PKEY_asn1_set_get_pub_key(EVP_PKEY_ASN1_METHOD *ameth,
+ int (*get_pub_key) (const EVP_PKEY *pk,
+ unsigned char *pub,
+ size_t *len))
+{
+ ameth->get_pub_key = get_pub_key;
+}
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