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Diffstat (limited to 'src/lib/libcrypto/des/cfb_enc.c')
-rw-r--r-- | src/lib/libcrypto/des/cfb_enc.c | 190 |
1 files changed, 0 insertions, 190 deletions
diff --git a/src/lib/libcrypto/des/cfb_enc.c b/src/lib/libcrypto/des/cfb_enc.c deleted file mode 100644 index ae41c9d079..0000000000 --- a/src/lib/libcrypto/des/cfb_enc.c +++ /dev/null | |||
@@ -1,190 +0,0 @@ | |||
1 | /* $OpenBSD: cfb_enc.c,v 1.17 2024/03/29 01:47:29 joshua 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 "des_local.h" | ||
60 | #include <endian.h> | ||
61 | |||
62 | /* The input and output are loaded in multiples of 8 bits. | ||
63 | * What this means is that if you hame numbits=12 and length=2 | ||
64 | * the first 12 bits will be retrieved from the first byte and half | ||
65 | * the second. The second 12 bits will come from the 3rd and half the 4th | ||
66 | * byte. | ||
67 | */ | ||
68 | /* Until Aug 1 2003 this function did not correctly implement CFB-r, so it | ||
69 | * will not be compatible with any encryption prior to that date. Ben. */ | ||
70 | void | ||
71 | DES_cfb_encrypt(const unsigned char *in, unsigned char *out, int numbits, | ||
72 | long length, DES_key_schedule *schedule, DES_cblock *ivec, | ||
73 | int enc) | ||
74 | { | ||
75 | DES_LONG d0, d1, v0, v1; | ||
76 | unsigned long l = length; | ||
77 | int num = numbits/8, n = (numbits + 7)/8, i, rem = numbits % 8; | ||
78 | DES_LONG ti[2]; | ||
79 | unsigned char *iv; | ||
80 | #if BYTE_ORDER != LITTLE_ENDIAN | ||
81 | unsigned char ovec[16]; | ||
82 | #else | ||
83 | unsigned int sh[4]; | ||
84 | unsigned char *ovec = (unsigned char *)sh; | ||
85 | #endif | ||
86 | |||
87 | if (numbits <= 0 || numbits > 64) | ||
88 | return; | ||
89 | iv = &(*ivec)[0]; | ||
90 | c2l(iv, v0); | ||
91 | c2l(iv, v1); | ||
92 | if (enc) { | ||
93 | while (l >= (unsigned long)n) { | ||
94 | l -= n; | ||
95 | ti[0] = v0; | ||
96 | ti[1] = v1; | ||
97 | DES_encrypt1((DES_LONG *)ti, schedule, DES_ENCRYPT); | ||
98 | c2ln(in, d0, d1, n); | ||
99 | in += n; | ||
100 | d0 ^= ti[0]; | ||
101 | d1 ^= ti[1]; | ||
102 | l2cn(d0, d1, out, n); | ||
103 | out += n; | ||
104 | /* 30-08-94 - eay - changed because l>>32 and | ||
105 | * l<<32 are bad under gcc :-( */ | ||
106 | if (numbits == 32) { | ||
107 | v0 = v1; | ||
108 | v1 = d0; | ||
109 | } else if (numbits == 64) { | ||
110 | v0 = d0; | ||
111 | v1 = d1; | ||
112 | } else { | ||
113 | #if BYTE_ORDER != LITTLE_ENDIAN | ||
114 | iv = &ovec[0]; | ||
115 | l2c(v0, iv); | ||
116 | l2c(v1, iv); | ||
117 | l2c(d0, iv); | ||
118 | l2c(d1, iv); | ||
119 | #else | ||
120 | sh[0] = v0, sh[1] = v1, sh[2] = d0, sh[3] = d1; | ||
121 | #endif | ||
122 | if (rem == 0) | ||
123 | memmove(ovec, ovec + num, 8); | ||
124 | else | ||
125 | for (i = 0; i < 8; ++i) | ||
126 | ovec[i] = ovec[i + num] << rem | | ||
127 | ovec[i + num + 1] >> (8 - | ||
128 | rem); | ||
129 | #if BYTE_ORDER == LITTLE_ENDIAN | ||
130 | v0 = sh[0], v1 = sh[1]; | ||
131 | #else | ||
132 | iv = &ovec[0]; | ||
133 | c2l(iv, v0); | ||
134 | c2l(iv, v1); | ||
135 | #endif | ||
136 | } | ||
137 | } | ||
138 | } else { | ||
139 | while (l >= (unsigned long)n) { | ||
140 | l -= n; | ||
141 | ti[0] = v0; | ||
142 | ti[1] = v1; | ||
143 | DES_encrypt1((DES_LONG *)ti, schedule, DES_ENCRYPT); | ||
144 | c2ln(in, d0, d1, n); | ||
145 | in += n; | ||
146 | /* 30-08-94 - eay - changed because l>>32 and | ||
147 | * l<<32 are bad under gcc :-( */ | ||
148 | if (numbits == 32) { | ||
149 | v0 = v1; | ||
150 | v1 = d0; | ||
151 | } else if (numbits == 64) { | ||
152 | v0 = d0; | ||
153 | v1 = d1; | ||
154 | } else { | ||
155 | #if BYTE_ORDER != LITTLE_ENDIAN | ||
156 | iv = &ovec[0]; | ||
157 | l2c(v0, iv); | ||
158 | l2c(v1, iv); | ||
159 | l2c(d0, iv); | ||
160 | l2c(d1, iv); | ||
161 | #else | ||
162 | sh[0] = v0, sh[1] = v1, sh[2] = d0, sh[3] = d1; | ||
163 | #endif | ||
164 | if (rem == 0) | ||
165 | memmove(ovec, ovec + num, 8); | ||
166 | else | ||
167 | for (i = 0; i < 8; ++i) | ||
168 | ovec[i] = ovec[i + num] << rem | | ||
169 | ovec[i + num + 1] >> (8 - | ||
170 | rem); | ||
171 | #if BYTE_ORDER == LITTLE_ENDIAN | ||
172 | v0 = sh[0], v1 = sh[1]; | ||
173 | #else | ||
174 | iv = &ovec[0]; | ||
175 | c2l(iv, v0); | ||
176 | c2l(iv, v1); | ||
177 | #endif | ||
178 | } | ||
179 | d0 ^= ti[0]; | ||
180 | d1 ^= ti[1]; | ||
181 | l2cn(d0, d1, out, n); | ||
182 | out += n; | ||
183 | } | ||
184 | } | ||
185 | iv = &(*ivec)[0]; | ||
186 | l2c(v0, iv); | ||
187 | l2c(v1, iv); | ||
188 | v0 = v1 = d0 = d1 = ti[0] = ti[1] = 0; | ||
189 | } | ||
190 | LCRYPTO_ALIAS(DES_cfb_encrypt); | ||