Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/evp/e_xcbc_d.c	Lines:	12	18	66.7 %
Date:	2017-11-07	Branches:	2	4	50.0 %


/* $OpenBSD: e_xcbc_d.c,v 1.12 2014/07/11 08:44:48 jsing Exp $ */
/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
 * All rights reserved.
 *
 * This package is an SSL implementation written
 * by Eric Young (eay@cryptsoft.com).
 * The implementation was written so as to conform with Netscapes SSL.
 *
 * This library is free for commercial and non-commercial use as long as
 * the following conditions are aheared to.  The following conditions
 * apply to all code found in this distribution, be it the RC4, RSA,
 * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
 * included with this distribution is covered by the same copyright terms
 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
 *
 * Copyright remains Eric Young's, and as such any Copyright notices in
 * the code are not to be removed.
 * If this package is used in a product, Eric Young should be given attribution
 * as the author of the parts of the library used.
 * This can be in the form of a textual message at program startup or
 * in documentation (online or textual) provided with the package.
 *
 * 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 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 acknowledgement:
 *    "This product includes cryptographic software written by
 *     Eric Young (eay@cryptsoft.com)"
 *    The word 'cryptographic' can be left out if the rouines from the library
 *    being used are not cryptographic related :-).
 * 4. If you include any Windows specific code (or a derivative thereof) from
 *    the apps directory (application code) you must include an acknowledgement:
 *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
 *
 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
 * ANY EXPRESS 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 AUTHOR OR 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.
 *
 * The licence and distribution terms for any publically available version or
 * derivative of this code cannot be changed.  i.e. this code cannot simply be
 * copied and put under another distribution licence
 * [including the GNU Public Licence.]
 */

#include <stdio.h>
#include <string.h>

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_DES

#include <openssl/des.h>
#include <openssl/evp.h>
#include <openssl/objects.h>

#include "evp_locl.h"

static int desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
    const unsigned char *iv, int enc);
static int desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
    const unsigned char *in, size_t inl);


typedef struct {
	DES_key_schedule ks;/* key schedule */
	DES_cblock inw;
	DES_cblock outw;
} DESX_CBC_KEY;

#define data(ctx) ((DESX_CBC_KEY *)(ctx)->cipher_data)

static const EVP_CIPHER d_xcbc_cipher = {
	NID_desx_cbc,
	8, 24, 8,
	EVP_CIPH_CBC_MODE,
	desx_cbc_init_key,
	desx_cbc_cipher,
	NULL,
	sizeof(DESX_CBC_KEY),
	EVP_CIPHER_set_asn1_iv,
	EVP_CIPHER_get_asn1_iv,
	NULL,
	NULL
};

const EVP_CIPHER *
EVP_desx_cbc(void)
{
	return (&d_xcbc_cipher);
}

static int
desx_cbc_init_key(EVP_CIPHER_CTX *ctx, const unsigned char *key,
    const unsigned char *iv, int enc)
{
	DES_cblock *deskey = (DES_cblock *)key;

	DES_set_key_unchecked(deskey, &data(ctx)->ks);
	memcpy(&data(ctx)->inw[0], &key[8], 8);
	memcpy(&data(ctx)->outw[0], &key[16], 8);

	return 1;
}

static int
desx_cbc_cipher(EVP_CIPHER_CTX *ctx, unsigned char *out,
    const unsigned char *in, size_t inl)
{
	while (inl >= EVP_MAXCHUNK) {
		DES_xcbc_encrypt(in, out, (long)EVP_MAXCHUNK, &data(ctx)->ks,
		    (DES_cblock *)&(ctx->iv[0]), &data(ctx)->inw,
		    &data(ctx)->outw, ctx->encrypt);
		inl -= EVP_MAXCHUNK;
		in += EVP_MAXCHUNK;
		out += EVP_MAXCHUNK;
	}
	if (inl)
		DES_xcbc_encrypt(in, out, (long)inl, &data(ctx)->ks,
		    (DES_cblock *)&(ctx->iv[0]), &data(ctx)->inw,
		    &data(ctx)->outw, ctx->encrypt);
	return 1;
}
#endif


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: e_xcbc_d.c,v 1.12 2014/07/11 08:44:48 jsing Exp $ */
2			/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
3			* All rights reserved.
4			*
5			* This package is an SSL implementation written
6			* by Eric Young (eay@cryptsoft.com).
7			* The implementation was written so as to conform with Netscapes SSL.
8			*
9			* This library is free for commercial and non-commercial use as long as
10			* the following conditions are aheared to. The following conditions
11			* apply to all code found in this distribution, be it the RC4, RSA,
12			* lhash, DES, etc., code; not just the SSL code. The SSL documentation
13			* included with this distribution is covered by the same copyright terms
14			* except that the holder is Tim Hudson (tjh@cryptsoft.com).
15			*
16			* Copyright remains Eric Young's, and as such any Copyright notices in
17			* the code are not to be removed.
18			* If this package is used in a product, Eric Young should be given attribution
19			* as the author of the parts of the library used.
20			* This can be in the form of a textual message at program startup or
21			* in documentation (online or textual) provided with the package.
22			*
23			* Redistribution and use in source and binary forms, with or without
24			* modification, are permitted provided that the following conditions
25			* are met:
26			* 1. Redistributions of source code must retain the copyright
27			* notice, this list of conditions and the following disclaimer.
28			* 2. Redistributions in binary form must reproduce the above copyright
29			* notice, this list of conditions and the following disclaimer in the
30			* documentation and/or other materials provided with the distribution.
31			* 3. All advertising materials mentioning features or use of this software
32			* must display the following acknowledgement:
33			* "This product includes cryptographic software written by
34			* Eric Young (eay@cryptsoft.com)"
35			* The word 'cryptographic' can be left out if the rouines from the library
36			* being used are not cryptographic related :-).
37			* 4. If you include any Windows specific code (or a derivative thereof) from
38			* the apps directory (application code) you must include an acknowledgement:
39			* "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40			*
41			* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42			* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43			* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44			* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45			* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46			* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47			* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48			* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49			* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50			* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51			* SUCH DAMAGE.
52			*
53			* The licence and distribution terms for any publically available version or
54			* derivative of this code cannot be changed. i.e. this code cannot simply be
55			* copied and put under another distribution licence
56			* [including the GNU Public Licence.]
57			*/
58
59			#include <stdio.h>
60			#include <string.h>
61
62			#include <openssl/opensslconf.h>
63
64			#ifndef OPENSSL_NO_DES
65
66			#include <openssl/des.h>
67			#include <openssl/evp.h>
68			#include <openssl/objects.h>
69
70			#include "evp_locl.h"
71
72			static int desx_cbc_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
73			const unsigned char *iv, int enc);
74			static int desx_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
75			const unsigned char *in, size_t inl);
76
77
78			typedef struct {
79			DES_key_schedule ks;/* key schedule */
80			DES_cblock inw;
81			DES_cblock outw;
82			} DESX_CBC_KEY;
83
84			#define data(ctx) ((DESX_CBC_KEY *)(ctx)->cipher_data)
85
86			static const EVP_CIPHER d_xcbc_cipher = {
87			NID_desx_cbc,
88			8, 24, 8,
89			EVP_CIPH_CBC_MODE,
90			desx_cbc_init_key,
91			desx_cbc_cipher,
92			NULL,
93			sizeof(DESX_CBC_KEY),
94			EVP_CIPHER_set_asn1_iv,
95			EVP_CIPHER_get_asn1_iv,
96			NULL,
97			NULL
98			};
99
100			const EVP_CIPHER *
101			EVP_desx_cbc(void)
102			{
103		3106	return (&d_xcbc_cipher);
104			}
105
106			static int
107			desx_cbc_init_key(EVP_CIPHER_CTX ctx, const unsigned char key,
108			const unsigned char *iv, int enc)
109			{
110		48	DES_cblock deskey = (DES_cblock )key;
111
112		24	DES_set_key_unchecked(deskey, &data(ctx)->ks);
113		24	memcpy(&data(ctx)->inw[0], &key[8], 8);
114		24	memcpy(&data(ctx)->outw[0], &key[16], 8);
115
116		24	return 1;
117			}
118
119			static int
120			desx_cbc_cipher(EVP_CIPHER_CTX ctx, unsigned char out,
121			const unsigned char *in, size_t inl)
122			{
123	✗✓	378	while (inl >= EVP_MAXCHUNK) {
124			DES_xcbc_encrypt(in, out, (long)EVP_MAXCHUNK, &data(ctx)->ks,
125			(DES_cblock *)&(ctx->iv[0]), &data(ctx)->inw,
126			&data(ctx)->outw, ctx->encrypt);
127			inl -= EVP_MAXCHUNK;
128			in += EVP_MAXCHUNK;
129			out += EVP_MAXCHUNK;
130			}
131	✓✗	126	if (inl)
132		252	DES_xcbc_encrypt(in, out, (long)inl, &data(ctx)->ks,
133		126	(DES_cblock *)&(ctx->iv[0]), &data(ctx)->inw,
134		126	&data(ctx)->outw, ctx->encrypt);
135		126	return 1;
136			}
137			#endif