678948068b
-=-=-=-=-=-=-=-=-=-=-=-=-= -Begin work on Navigation Meshes (simple pathfinding for now, will improve soon) -More doc on theme overriding -Upgraded OpenSSL to version without bugs -Misc bugfixes
167 lines
4.5 KiB
C
167 lines
4.5 KiB
C
/* 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).
|
|
*
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include "cryptlib.h"
|
|
#include <openssl/evp.h>
|
|
#include "asn1_locl.h"
|
|
|
|
#define HMAC_TEST_PRIVATE_KEY_FORMAT
|
|
|
|
/* HMAC "ASN1" method. This is just here to indicate the
|
|
* maximum HMAC output length and to free up an HMAC
|
|
* key.
|
|
*/
|
|
|
|
static int hmac_size(const EVP_PKEY *pkey)
|
|
{
|
|
return EVP_MAX_MD_SIZE;
|
|
}
|
|
|
|
static void hmac_key_free(EVP_PKEY *pkey)
|
|
{
|
|
ASN1_OCTET_STRING *os = (ASN1_OCTET_STRING *)pkey->pkey.ptr;
|
|
if (os)
|
|
{
|
|
if (os->data)
|
|
OPENSSL_cleanse(os->data, os->length);
|
|
ASN1_OCTET_STRING_free(os);
|
|
}
|
|
}
|
|
|
|
|
|
static int hmac_pkey_ctrl(EVP_PKEY *pkey, int op, long arg1, void *arg2)
|
|
{
|
|
switch (op)
|
|
{
|
|
case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
|
|
*(int *)arg2 = NID_sha1;
|
|
return 1;
|
|
|
|
default:
|
|
return -2;
|
|
}
|
|
}
|
|
|
|
#ifdef HMAC_TEST_PRIVATE_KEY_FORMAT
|
|
/* A bogus private key format for test purposes. This is simply the
|
|
* HMAC key with "HMAC PRIVATE KEY" in the headers. When enabled the
|
|
* genpkey utility can be used to "generate" HMAC keys.
|
|
*/
|
|
|
|
static int old_hmac_decode(EVP_PKEY *pkey,
|
|
const unsigned char **pder, int derlen)
|
|
{
|
|
ASN1_OCTET_STRING *os;
|
|
os = ASN1_OCTET_STRING_new();
|
|
if (!os || !ASN1_OCTET_STRING_set(os, *pder, derlen))
|
|
return 0;
|
|
EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, os);
|
|
return 1;
|
|
}
|
|
|
|
static int old_hmac_encode(const EVP_PKEY *pkey, unsigned char **pder)
|
|
{
|
|
int inc;
|
|
ASN1_OCTET_STRING *os = (ASN1_OCTET_STRING *)pkey->pkey.ptr;
|
|
if (pder)
|
|
{
|
|
if (!*pder)
|
|
{
|
|
*pder = OPENSSL_malloc(os->length);
|
|
inc = 0;
|
|
}
|
|
else inc = 1;
|
|
|
|
memcpy(*pder, os->data, os->length);
|
|
|
|
if (inc)
|
|
*pder += os->length;
|
|
}
|
|
|
|
return os->length;
|
|
}
|
|
|
|
#endif
|
|
|
|
const EVP_PKEY_ASN1_METHOD hmac_asn1_meth =
|
|
{
|
|
EVP_PKEY_HMAC,
|
|
EVP_PKEY_HMAC,
|
|
0,
|
|
|
|
"HMAC",
|
|
"OpenSSL HMAC method",
|
|
|
|
0,0,0,0,
|
|
|
|
0,0,0,
|
|
|
|
hmac_size,
|
|
0,
|
|
0,0,0,0,0,0,0,
|
|
|
|
hmac_key_free,
|
|
hmac_pkey_ctrl,
|
|
#ifdef HMAC_TEST_PRIVATE_KEY_FORMAT
|
|
old_hmac_decode,
|
|
old_hmac_encode
|
|
#else
|
|
0,0
|
|
#endif
|
|
};
|
|
|