/*
- * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
- * 2007.
- */
-/* ====================================================================
- * Copyright (c) 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
- * 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 2007-2016 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/x509v3.h>
#include <openssl/evp.h>
#include <openssl/hmac.h>
-#include "evp_locl.h"
+#include "internal/evp_int.h"
/* HMAC pkey context structure */
typedef struct {
const EVP_MD *md; /* MD for HMAC use */
ASN1_OCTET_STRING ktmp; /* Temp storage for key */
- HMAC_CTX ctx;
+ HMAC_CTX *ctx;
} HMAC_PKEY_CTX;
static int pkey_hmac_init(EVP_PKEY_CTX *ctx)
{
HMAC_PKEY_CTX *hctx;
- hctx = OPENSSL_malloc(sizeof(HMAC_PKEY_CTX));
- if (!hctx)
+
+ hctx = OPENSSL_zalloc(sizeof(*hctx));
+ if (hctx == NULL)
return 0;
- hctx->md = NULL;
- hctx->ktmp.data = NULL;
- hctx->ktmp.length = 0;
- hctx->ktmp.flags = 0;
hctx->ktmp.type = V_ASN1_OCTET_STRING;
- HMAC_CTX_init(&hctx->ctx);
+ hctx->ctx = HMAC_CTX_new();
+ if (hctx->ctx == NULL) {
+ OPENSSL_free(hctx);
+ return 0;
+ }
ctx->data = hctx;
ctx->keygen_info_count = 0;
return 1;
}
+static void pkey_hmac_cleanup(EVP_PKEY_CTX *ctx);
+
static int pkey_hmac_copy(EVP_PKEY_CTX *dst, EVP_PKEY_CTX *src)
{
HMAC_PKEY_CTX *sctx, *dctx;
+
+ /* allocate memory for dst->data and a new HMAC_CTX in dst->data->ctx */
if (!pkey_hmac_init(dst))
return 0;
- sctx = src->data;
- dctx = dst->data;
+ sctx = EVP_PKEY_CTX_get_data(src);
+ dctx = EVP_PKEY_CTX_get_data(dst);
dctx->md = sctx->md;
- HMAC_CTX_init(&dctx->ctx);
- if (!HMAC_CTX_copy(&dctx->ctx, &sctx->ctx))
- return 0;
+ if (!HMAC_CTX_copy(dctx->ctx, sctx->ctx))
+ goto err;
if (sctx->ktmp.data) {
if (!ASN1_OCTET_STRING_set(&dctx->ktmp,
sctx->ktmp.data, sctx->ktmp.length))
- return 0;
+ goto err;
}
return 1;
+err:
+ /* release HMAC_CTX in dst->data->ctx and memory allocated for dst->data */
+ pkey_hmac_cleanup (dst);
+ return 0;
}
static void pkey_hmac_cleanup(EVP_PKEY_CTX *ctx)
{
- HMAC_PKEY_CTX *hctx = ctx->data;
- HMAC_CTX_cleanup(&hctx->ctx);
- if (hctx->ktmp.data) {
- if (hctx->ktmp.length)
- OPENSSL_cleanse(hctx->ktmp.data, hctx->ktmp.length);
- OPENSSL_free(hctx->ktmp.data);
- hctx->ktmp.data = NULL;
+ HMAC_PKEY_CTX *hctx = EVP_PKEY_CTX_get_data(ctx);
+
+ if (hctx != NULL) {
+ HMAC_CTX_free(hctx->ctx);
+ OPENSSL_clear_free(hctx->ktmp.data, hctx->ktmp.length);
+ OPENSSL_free(hctx);
+ EVP_PKEY_CTX_set_data(ctx, NULL);
}
- OPENSSL_free(hctx);
}
static int pkey_hmac_keygen(EVP_PKEY_CTX *ctx, EVP_PKEY *pkey)
static int int_update(EVP_MD_CTX *ctx, const void *data, size_t count)
{
- HMAC_PKEY_CTX *hctx = ctx->pctx->data;
- if (!HMAC_Update(&hctx->ctx, data, count))
+ HMAC_PKEY_CTX *hctx = EVP_MD_CTX_pkey_ctx(ctx)->data;
+ if (!HMAC_Update(hctx->ctx, data, count))
return 0;
return 1;
}
static int hmac_signctx_init(EVP_PKEY_CTX *ctx, EVP_MD_CTX *mctx)
{
HMAC_PKEY_CTX *hctx = ctx->data;
- HMAC_CTX_set_flags(&hctx->ctx, mctx->flags & ~EVP_MD_CTX_FLAG_NO_INIT);
+ HMAC_CTX_set_flags(hctx->ctx,
+ EVP_MD_CTX_test_flags(mctx, ~EVP_MD_CTX_FLAG_NO_INIT));
EVP_MD_CTX_set_flags(mctx, EVP_MD_CTX_FLAG_NO_INIT);
- mctx->update = int_update;
+ EVP_MD_CTX_set_update_fn(mctx, int_update);
return 1;
}
if (!sig)
return 1;
- if (!HMAC_Final(&hctx->ctx, sig, &hlen))
+ if (!HMAC_Final(hctx->ctx, sig, &hlen))
return 0;
*siglen = (size_t)hlen;
return 1;
case EVP_PKEY_CTRL_DIGESTINIT:
key = (ASN1_OCTET_STRING *)ctx->pkey->pkey.ptr;
- if (!HMAC_Init_ex(&hctx->ctx, key->data, key->length, hctx->md,
+ if (!HMAC_Init_ex(hctx->ctx, key->data, key->length, hctx->md,
ctx->engine))
return 0;
break;
if (!value) {
return 0;
}
- if (!strcmp(type, "key")) {
- void *p = (void *)value;
- return pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, -1, p);
- }
- if (!strcmp(type, "hexkey")) {
- unsigned char *key;
- int r;
- long keylen;
- key = string_to_hex(value, &keylen);
- if (!key)
- return 0;
- r = pkey_hmac_ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, keylen, key);
- OPENSSL_free(key);
- return r;
- }
+ if (strcmp(type, "key") == 0)
+ return EVP_PKEY_CTX_str2ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, value);
+ if (strcmp(type, "hexkey") == 0)
+ return EVP_PKEY_CTX_hex2ctrl(ctx, EVP_PKEY_CTRL_SET_MAC_KEY, value);
return -2;
}
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