/src/openssl/crypto/hmac/hm_ameth.c

Source (jump to first uncovered line)
/*
 * 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_sha256;
        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))
        goto err;
    if (!EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, os))
        goto err;
    return 1;

 err:
    ASN1_OCTET_STRING_free(os);
    return 0;
}

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
};

Line	Count	Source (jump to first uncovered line)
1		/*
2		* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
3		* 2007.
4		*/
5		/* ====================================================================
6		* Copyright (c) 2007 The OpenSSL Project. All rights reserved.
7		*
8		* Redistribution and use in source and binary forms, with or without
9		* modification, are permitted provided that the following conditions
10		* are met:
11		*
12		* 1. Redistributions of source code must retain the above copyright
13		* notice, this list of conditions and the following disclaimer.
14		*
15		* 2. Redistributions in binary form must reproduce the above copyright
16		* notice, this list of conditions and the following disclaimer in
17		* the documentation and/or other materials provided with the
18		* distribution.
19		*
20		* 3. All advertising materials mentioning features or use of this
21		* software must display the following acknowledgment:
22		* "This product includes software developed by the OpenSSL Project
23		* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24		*
25		* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26		* endorse or promote products derived from this software without
27		* prior written permission. For written permission, please contact
28		* licensing@OpenSSL.org.
29		*
30		* 5. Products derived from this software may not be called "OpenSSL"
31		* nor may "OpenSSL" appear in their names without prior written
32		* permission of the OpenSSL Project.
33		*
34		* 6. Redistributions of any form whatsoever must retain the following
35		* acknowledgment:
36		* "This product includes software developed by the OpenSSL Project
37		* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38		*
39		* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40		* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41		* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42		* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43		* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44		* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45		* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46		* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47		* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48		* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49		* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50		* OF THE POSSIBILITY OF SUCH DAMAGE.
51		* ====================================================================
52		*
53		* This product includes cryptographic software written by Eric Young
54		* (eay@cryptsoft.com). This product includes software written by Tim
55		* Hudson (tjh@cryptsoft.com).
56		*
57		*/
58
59		#include <stdio.h>
60		#include "cryptlib.h"
61		#include <openssl/evp.h>
62		#include "asn1_locl.h"
63
64		#define HMAC_TEST_PRIVATE_KEY_FORMAT
65
66		/*
67		* HMAC "ASN1" method. This is just here to indicate the maximum HMAC output
68		* length and to free up an HMAC key.
69		*/
70
71		static int hmac_size(const EVP_PKEY *pkey)
72	0	{
73	0	return EVP_MAX_MD_SIZE;
74	0	}
75
76		static void hmac_key_free(EVP_PKEY *pkey)
77	0	{
78	0	ASN1_OCTET_STRING os = (ASN1_OCTET_STRING )pkey->pkey.ptr;
79	0	if (os) {
80	0	if (os->data)
81	0	OPENSSL_cleanse(os->data, os->length);
82	0	ASN1_OCTET_STRING_free(os);
83	0	}
84	0	}
85
86		static int hmac_pkey_ctrl(EVP_PKEY pkey, int op, long arg1, void arg2)
87	0	{
88	0	switch (op) {
89	0	case ASN1_PKEY_CTRL_DEFAULT_MD_NID:
90	0	(int )arg2 = NID_sha256;
91	0	return 1;
92
93	0	default:
94	0	return -2;
95	0	}
96	0	}
97
98		#ifdef HMAC_TEST_PRIVATE_KEY_FORMAT
99		/*
100		* A bogus private key format for test purposes. This is simply the HMAC key
101		* with "HMAC PRIVATE KEY" in the headers. When enabled the genpkey utility
102		* can be used to "generate" HMAC keys.
103		*/
104
105		static int old_hmac_decode(EVP_PKEY *pkey,
106		const unsigned char **pder, int derlen)
107	0	{
108	0	ASN1_OCTET_STRING *os;
109	0	os = ASN1_OCTET_STRING_new();
110	0	if (!os \|\| !ASN1_OCTET_STRING_set(os, *pder, derlen))
111	0	goto err;
112	0	if (!EVP_PKEY_assign(pkey, EVP_PKEY_HMAC, os))
113	0	goto err;
114	0	return 1;
115
116	0	err:
117	0	ASN1_OCTET_STRING_free(os);
118	0	return 0;
119	0	}
120
121		static int old_hmac_encode(const EVP_PKEY pkey, unsigned char *pder)
122	0	{
123	0	int inc;
124	0	ASN1_OCTET_STRING os = (ASN1_OCTET_STRING )pkey->pkey.ptr;
125	0	if (pder) {
126	0	if (!*pder) {
127	0	*pder = OPENSSL_malloc(os->length);
128	0	inc = 0;
129	0	} else
130	0	inc = 1;
131
132	0	memcpy(*pder, os->data, os->length);
133
134	0	if (inc)
135	0	*pder += os->length;
136	0	}
137
138	0	return os->length;
139	0	}
140
141		#endif
142
143		const EVP_PKEY_ASN1_METHOD hmac_asn1_meth = {
144		EVP_PKEY_HMAC,
145		EVP_PKEY_HMAC,
146		0,
147
148		"HMAC",
149		"OpenSSL HMAC method",
150
151		0, 0, 0, 0,
152
153		0, 0, 0,
154
155		hmac_size,
156		0,
157		0, 0, 0, 0, 0, 0, 0,
158
159		hmac_key_free,
160		hmac_pkey_ctrl,
161		#ifdef HMAC_TEST_PRIVATE_KEY_FORMAT
162		old_hmac_decode,
163		old_hmac_encode
164		#else
165		0, 0
166		#endif
167		};

Coverage Report

Created: 2022-11-30 06:20