Head

GCC Code Coverage Report

Directory:	./		Exec	Total	Coverage
File:	lib/libcrypto/des/fcrypt_b.c	Lines:	28	28	100.0 %
Date:	2017-11-13	Branches:	2	2	100.0 %


/* $OpenBSD: fcrypt_b.c,v 1.9 2014/10/28 07:35:58 jsg 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>

/* This version of crypt has been developed from my MIT compatible
 * DES library.
 * The library is available at pub/Crypto/DES at ftp.psy.uq.oz.au
 * Eric Young (eay@cryptsoft.com)
 */

#define DES_FCRYPT
#include "des_locl.h"
#undef DES_FCRYPT

#ifndef OPENBSD_DES_ASM

#undef PERM_OP
#define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\
	(b)^=(t),\
	(a)^=((t)<<(n)))

#undef HPERM_OP
#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\
	(a)=(a)^(t)^(t>>(16-(n))))\

void fcrypt_body(DES_LONG *out, DES_key_schedule *ks, DES_LONG Eswap0,
		 DES_LONG Eswap1)
	{
	DES_LONG l,r,t,u;
#ifdef DES_PTR
	const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
#endif
	DES_LONG *s;
	int j;
	DES_LONG E0,E1;

	l=0;
	r=0;

	s=(DES_LONG *)ks;
	E0=Eswap0;
	E1=Eswap1;

	for (j=0; j<25; j++)
		{
#ifndef DES_UNROLL
		int i;

		for (i=0; i<32; i+=4)
			{
			D_ENCRYPT(l,r,i+0); /*  1 */
			D_ENCRYPT(r,l,i+2); /*  2 */
			}
#else
		D_ENCRYPT(l,r, 0); /*  1 */
		D_ENCRYPT(r,l, 2); /*  2 */
		D_ENCRYPT(l,r, 4); /*  3 */
		D_ENCRYPT(r,l, 6); /*  4 */
		D_ENCRYPT(l,r, 8); /*  5 */
		D_ENCRYPT(r,l,10); /*  6 */
		D_ENCRYPT(l,r,12); /*  7 */
		D_ENCRYPT(r,l,14); /*  8 */
		D_ENCRYPT(l,r,16); /*  9 */
		D_ENCRYPT(r,l,18); /*  10 */
		D_ENCRYPT(l,r,20); /*  11 */
		D_ENCRYPT(r,l,22); /*  12 */
		D_ENCRYPT(l,r,24); /*  13 */
		D_ENCRYPT(r,l,26); /*  14 */
		D_ENCRYPT(l,r,28); /*  15 */
		D_ENCRYPT(r,l,30); /*  16 */
#endif

		t=l;
		l=r;
		r=t;
		}
	l=ROTATE(l,3)&0xffffffffL;
	r=ROTATE(r,3)&0xffffffffL;

	PERM_OP(l,r,t, 1,0x55555555L);
	PERM_OP(r,l,t, 8,0x00ff00ffL);
	PERM_OP(l,r,t, 2,0x33333333L);
	PERM_OP(r,l,t,16,0x0000ffffL);
	PERM_OP(l,r,t, 4,0x0f0f0f0fL);

	out[0]=r;
	out[1]=l;
	}

#endif /* OPENBSD_DES_ASM */


Generated by: GCOVR (Version 3.3)

Line	Branch	Exec	Source
1			/* $OpenBSD: fcrypt_b.c,v 1.9 2014/10/28 07:35:58 jsg 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
61			/* This version of crypt has been developed from my MIT compatible
62			* DES library.
63			* The library is available at pub/Crypto/DES at ftp.psy.uq.oz.au
64			* Eric Young (eay@cryptsoft.com)
65			*/
66
67			#define DES_FCRYPT
68			#include "des_locl.h"
69			#undef DES_FCRYPT
70
71			#ifndef OPENBSD_DES_ASM
72
73			#undef PERM_OP
74			#define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\
75			(b)^=(t),\
76			(a)^=((t)<<(n)))
77
78			#undef HPERM_OP
79			#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\
80			(a)=(a)^(t)^(t>>(16-(n))))\
81
82			void fcrypt_body(DES_LONG out, DES_key_schedule ks, DES_LONG Eswap0,
83			DES_LONG Eswap1)
84			{
85			DES_LONG l,r,t,u;
86			#ifdef DES_PTR
87			const unsigned char des_SP=(const unsigned char )DES_SPtrans;
88			#endif
89			DES_LONG *s;
90			int j;
91			DES_LONG E0,E1;
92
93			l=0;
94			r=0;
95
96		16	s=(DES_LONG *)ks;
97			E0=Eswap0;
98			E1=Eswap1;
99
100	✓✓	416	for (j=0; j<25; j++)
101			{
102			#ifndef DES_UNROLL
103			int i;
104
105			for (i=0; i<32; i+=4)
106			{
107			D_ENCRYPT(l,r,i+0); /* 1 */
108			D_ENCRYPT(r,l,i+2); /* 2 */
109			}
110			#else
111		200	D_ENCRYPT(l,r, 0); /* 1 */
112		200	D_ENCRYPT(r,l, 2); /* 2 */
113		200	D_ENCRYPT(l,r, 4); /* 3 */
114		200	D_ENCRYPT(r,l, 6); /* 4 */
115		200	D_ENCRYPT(l,r, 8); /* 5 */
116		200	D_ENCRYPT(r,l,10); /* 6 */
117		200	D_ENCRYPT(l,r,12); /* 7 */
118		200	D_ENCRYPT(r,l,14); /* 8 */
119		200	D_ENCRYPT(l,r,16); /* 9 */
120		200	D_ENCRYPT(r,l,18); /* 10 */
121		200	D_ENCRYPT(l,r,20); /* 11 */
122		200	D_ENCRYPT(r,l,22); /* 12 */
123		200	D_ENCRYPT(l,r,24); /* 13 */
124		200	D_ENCRYPT(r,l,26); /* 14 */
125		200	D_ENCRYPT(l,r,28); /* 15 */
126		200	D_ENCRYPT(r,l,30); /* 16 */
127			#endif
128
129			t=l;
130			l=r;
131			r=t;
132			}
133		8	l=ROTATE(l,3)&0xffffffffL;
134		8	r=ROTATE(r,3)&0xffffffffL;
135
136		8	PERM_OP(l,r,t, 1,0x55555555L);
137		8	PERM_OP(r,l,t, 8,0x00ff00ffL);
138		8	PERM_OP(l,r,t, 2,0x33333333L);
139		8	PERM_OP(r,l,t,16,0x0000ffffL);
140		8	PERM_OP(l,r,t, 4,0x0f0f0f0fL);
141
142		8	out[0]=r;
143		8	out[1]=l;
144		8	}
145
146			#endif /* OPENBSD_DES_ASM */