ReactOS  0.4.13-dev-257-gfabbd7c
des_crypt.c
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1 /*
2  * Copyright (c) 2009, Sun Microsystems, Inc.
3  * All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions are met:
7  * - Redistributions of source code must retain the above copyright notice,
8  * this list of conditions and the following disclaimer.
9  * - Redistributions in binary form must reproduce the above copyright notice,
10  * this list of conditions and the following disclaimer in the documentation
11  * and/or other materials provided with the distribution.
12  * - Neither the name of Sun Microsystems, Inc. nor the names of its
13  * contributors may be used to endorse or promote products derived
14  * from this software without specific prior written permission.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
17  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
20  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
21  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
22  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
23  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
24  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
25  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
26  * POSSIBILITY OF SUCH DAMAGE.
27  */
28 /*
29  * des_crypt.c, DES encryption library routines
30  * Copyright (C) 1986, Sun Microsystems, Inc.
31  */
32 
33 #include <wintirpc.h>
34 #include <sys/types.h>
35 #include <rpc/types.h>
36 #include <rpc/des_crypt.h>
37 #include <rpc/des.h>
38 #if 0
39 #ifndef lint
40 static char sccsid[] = "@(#)des_crypt.c 2.2 88/08/10 4.0 RPCSRC; from 1.13 88/02/08 SMI";
41 #endif
42 #endif
43 //#include <sys/cdefs.h>
44 
45 static int common_crypt( char *, char *, unsigned, unsigned, struct desparams * );
47 extern int _des_crypt_call(char *, int, struct desparams *);
48 /*
49  * Copy 8 bytes
50  */
51 #define COPY8(src, dst) { \
52  char *a = (char *) dst; \
53  char *b = (char *) src; \
54  *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
55  *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
56 }
57 
58 /*
59  * Copy multiple of 8 bytes
60  */
61 #define DESCOPY(src, dst, len) { \
62  char *a = (char *) dst; \
63  char *b = (char *) src; \
64  int i; \
65  for (i = (int) len; i > 0; i -= 8) { \
66  *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
67  *a++ = *b++; *a++ = *b++; *a++ = *b++; *a++ = *b++; \
68  } \
69 }
70 
71 /*
72  * CBC mode encryption
73  */
74 int
76  char *key;
77  char *buf;
78  unsigned len;
79  unsigned mode;
80  char *ivec;
81 {
82  int err;
83  struct desparams dp;
84 
85 #ifdef BROKEN_DES
86  dp.UDES.UDES_buf = buf;
87  dp.des_mode = ECB;
88 #else
89  dp.des_mode = CBC;
90 #endif
91  COPY8(ivec, dp.des_ivec);
92  err = common_crypt(key, buf, len, mode, &dp);
93  COPY8(dp.des_ivec, ivec);
94  return(err);
95 }
96 
97 
98 /*
99  * ECB mode encryption
100  */
101 int
103  char *key;
104  char *buf;
105  unsigned len;
106  unsigned mode;
107 {
108  struct desparams dp;
109 
110 #ifdef BROKEN_DES
111  dp.UDES.UDES_buf = buf;
112  dp.des_mode = CBC;
113 #else
114  dp.des_mode = ECB;
115 #endif
116  return(common_crypt(key, buf, len, mode, &dp));
117 }
118 
119 
120 
121 /*
122  * Common code to cbc_crypt() & ecb_crypt()
123  */
124 static int
126  char *key;
127  char *buf;
128  unsigned len;
129  unsigned mode;
130  struct desparams *desp;
131 {
132  int desdev;
133 
134  if ((len % 8) != 0 || len > DES_MAXDATA) {
135  return(DESERR_BADPARAM);
136  }
137  desp->des_dir =
139 
140  desdev = mode & DES_DEVMASK;
141  COPY8(key, desp->des_key);
142  /*
143  * software
144  */
145  if (__des_crypt_LOCAL != NULL) {
146  if (!__des_crypt_LOCAL(buf, len, desp)) {
147  return (DESERR_HWERROR);
148  }
149  } else {
150  if (!_des_crypt_call(buf, len, desp)) {
151  return (DESERR_HWERROR);
152  }
153  }
154  return(desdev == DES_SW ? DESERR_NONE : DESERR_NOHWDEVICE);
155 }
int _des_crypt_call(char *, int, struct desparams *)
Definition: crypt_client.c:46
union desparams::@184 UDES
u_char des_ivec[8]
Definition: des.h:49
GLenum GLuint GLenum GLsizei const GLchar * buf
Definition: glext.h:7751
#define DES_DEVMASK
Definition: des_crypt.h:55
Definition: des.h:39
Definition: des.h:39
int cbc_crypt(char *key, char *buf, unsigned len, unsigned mode, char *ivec)
Definition: des_crypt.c:75
Definition: des.h:45
enum desmode des_mode
Definition: des.h:48
#define DESERR_NONE
Definition: des_crypt.h:60
#define DES_MAXDATA
Definition: des_crypt.h:49
#define DES_ENCRYPT
Definition: des_crypt.h:51
smooth NULL
Definition: ftsmooth.c:416
#define DES_SW
Definition: des_crypt.h:57
#define DES_DIRMASK
Definition: des_crypt.h:50
#define COPY8(src, dst)
Definition: des_crypt.c:51
u_char * UDES_buf
Definition: des.h:53
int ecb_crypt(char *key, char *buf, unsigned len, unsigned mode)
Definition: des_crypt.c:102
static char sccsid[]
Definition: cmds.c:27
Definition: des.h:40
HKEY key
Definition: reg.c:42
static int common_crypt(char *, char *, unsigned, unsigned, struct desparams *)
Definition: des_crypt.c:125
GLenum GLsizei len
Definition: glext.h:6722
enum desdir des_dir
Definition: des.h:47
#define err(...)
#define DESERR_HWERROR
Definition: des_crypt.h:62
GLenum mode
Definition: glext.h:6217
#define DESERR_NOHWDEVICE
Definition: des_crypt.h:61
Definition: des.h:40
u_char des_key[8]
Definition: des.h:46
#define DESERR_BADPARAM
Definition: des_crypt.h:63
int(* __des_crypt_LOCAL)()=0
Definition: des_crypt.c:46
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unsigned int(__cdecl typeof(jpeg_read_scanlines))(struct jpeg_decompress_struct *
Definition: typeof.h:31