1 | /* |
2 | * @(#)des_crypt.h 2.1 88/08/11 4.0 RPCSRC |
3 | * |
4 | * des_crypt.h, des library routine interface |
5 | * Copyright (c) 2010, Oracle America, Inc. |
6 | * |
7 | * Redistribution and use in source and binary forms, with or without |
8 | * modification, are permitted provided that the following conditions are |
9 | * met: |
10 | * |
11 | * * Redistributions of source code must retain the above copyright |
12 | * notice, this list of conditions and the following disclaimer. |
13 | * * Redistributions in binary form must reproduce the above |
14 | * copyright notice, this list of conditions and the following |
15 | * disclaimer in the documentation and/or other materials |
16 | * provided with the distribution. |
17 | * * Neither the name of the "Oracle America, Inc." nor the names of its |
18 | * contributors may be used to endorse or promote products derived |
19 | * from this software without specific prior written permission. |
20 | * |
21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
22 | * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
23 | * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS |
24 | * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE |
25 | * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, |
26 | * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL |
27 | * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE |
28 | * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
29 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, |
30 | * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING |
31 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
32 | * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
33 | */ |
34 | |
35 | #ifndef __DES_CRYPT_H__ |
36 | #define __DES_CRYPT_H__ 1 |
37 | |
38 | #include <features.h> |
39 | |
40 | __BEGIN_DECLS |
41 | |
42 | #define DES_MAXDATA 8192 /* max bytes encrypted in one call */ |
43 | #define DES_DIRMASK (1 << 0) |
44 | #define DES_ENCRYPT (0*DES_DIRMASK) /* Encrypt */ |
45 | #define DES_DECRYPT (1*DES_DIRMASK) /* Decrypt */ |
46 | |
47 | |
48 | #define DES_DEVMASK (1 << 1) |
49 | #define DES_HW (0*DES_DEVMASK) /* Use hardware device */ |
50 | #define DES_SW (1*DES_DEVMASK) /* Use software device */ |
51 | |
52 | |
53 | #define DESERR_NONE 0 /* succeeded */ |
54 | #define DESERR_NOHWDEVICE 1 /* succeeded, but hw device not available */ |
55 | #define DESERR_HWERROR 2 /* failed, hardware/driver error */ |
56 | #define DESERR_BADPARAM 3 /* failed, bad parameter to call */ |
57 | |
58 | #define DES_FAILED(err) \ |
59 | ((err) > DESERR_NOHWDEVICE) |
60 | |
61 | /* |
62 | * cbc_crypt() |
63 | * ecb_crypt() |
64 | * |
65 | * Encrypt (or decrypt) len bytes of a buffer buf. |
66 | * The length must be a multiple of eight. |
67 | * The key should have odd parity in the low bit of each byte. |
68 | * ivec is the input vector, and is updated to the new one (cbc only). |
69 | * The mode is created by oring together the appropriate parameters. |
70 | * DESERR_NOHWDEVICE is returned if DES_HW was specified but |
71 | * there was no hardware to do it on (the data will still be |
72 | * encrypted though, in software). |
73 | */ |
74 | |
75 | |
76 | /* |
77 | * Cipher Block Chaining mode |
78 | */ |
79 | extern int cbc_crypt (char *__key, char *__buf, unsigned __len, |
80 | unsigned __mode, char *__ivec) __THROW; |
81 | |
82 | /* |
83 | * Electronic Code Book mode |
84 | */ |
85 | extern int ecb_crypt (char *__key, char *__buf, unsigned __len, |
86 | unsigned __mode) __THROW; |
87 | |
88 | /* |
89 | * Set des parity for a key. |
90 | * DES parity is odd and in the low bit of each byte |
91 | */ |
92 | extern void des_setparity (char *__key) __THROW; |
93 | |
94 | __END_DECLS |
95 | |
96 | #endif |
97 | |