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1 | /* crypto/des/ecb_enc.c */ |
2 | /* Copyright (C) 1995-1997 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 "des_locl.h" | |
60 | #include "spr.h" | |
61 | ||
62 | char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay"; | |
63 | char *DES_version="DES part of SSLeay 0.8.1b 29-Jun-1998"; | |
64 | ||
65 | char *des_options() | |
66 | { | |
67 | static int init=1; | |
68 | static char buf[32]; | |
69 | ||
70 | if (init) | |
71 | { | |
72 | char *ptr,*unroll,*risc,*size; | |
73 | ||
74 | init=0; | |
75 | #ifdef DES_PTR | |
76 | ptr="ptr"; | |
77 | #else | |
78 | ptr="idx"; | |
79 | #endif | |
80 | #if defined(DES_RISC1) || defined(DES_RISC2) | |
81 | #ifdef DES_RISC1 | |
82 | risc="risc1"; | |
83 | #endif | |
84 | #ifdef DES_RISC2 | |
85 | risc="risc2"; | |
86 | #endif | |
87 | #else | |
88 | risc="cisc"; | |
89 | #endif | |
90 | #ifdef DES_UNROLL | |
91 | unroll="16"; | |
92 | #else | |
93 | unroll="4"; | |
94 | #endif | |
95 | if (sizeof(DES_LONG) != sizeof(long)) | |
96 | size="int"; | |
97 | else | |
98 | size="long"; | |
99 | sprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size); | |
100 | } | |
101 | return(buf); | |
102 | } | |
103 | ||
104 | ||
105 | void des_ecb_encrypt(input, output, ks, enc) | |
106 | des_cblock (*input); | |
107 | des_cblock (*output); | |
108 | des_key_schedule ks; | |
109 | int enc; | |
110 | { | |
111 | register DES_LONG l; | |
112 | register unsigned char *in,*out; | |
113 | DES_LONG ll[2]; | |
114 | ||
115 | in=(unsigned char *)input; | |
116 | out=(unsigned char *)output; | |
117 | c2l(in,l); ll[0]=l; | |
118 | c2l(in,l); ll[1]=l; | |
119 | des_encrypt(ll,ks,enc); | |
120 | l=ll[0]; l2c(l,out); | |
121 | l=ll[1]; l2c(l,out); | |
122 | l=ll[0]=ll[1]=0; | |
123 | } | |
124 |