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1 | 6fd27407 | ths | /*
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2 | 6fd27407 | ths | * This is D3DES (V5.09) by Richard Outerbridge with the double and
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3 | 6fd27407 | ths | * triple-length support removed for use in VNC. Also the bytebit[] array
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4 | 6fd27407 | ths | * has been reversed so that the most significant bit in each byte of the
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5 | 6fd27407 | ths | * key is ignored, not the least significant.
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6 | 6fd27407 | ths | *
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7 | 6fd27407 | ths | * These changes are:
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8 | 6fd27407 | ths | * Copyright (C) 1999 AT&T Laboratories Cambridge. All Rights Reserved.
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9 | 6fd27407 | ths | *
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10 | 6fd27407 | ths | * This software is distributed in the hope that it will be useful,
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11 | 6fd27407 | ths | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | 6fd27407 | ths | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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13 | 6fd27407 | ths | */
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14 | 6fd27407 | ths | |
15 | 6fd27407 | ths | /* D3DES (V5.09) -
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16 | 6fd27407 | ths | *
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17 | 6fd27407 | ths | * A portable, public domain, version of the Data Encryption Standard.
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18 | 6fd27407 | ths | *
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19 | 6fd27407 | ths | * Written with Symantec's THINK (Lightspeed) C by Richard Outerbridge.
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20 | 6fd27407 | ths | * Thanks to: Dan Hoey for his excellent Initial and Inverse permutation
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21 | 6fd27407 | ths | * code; Jim Gillogly & Phil Karn for the DES key schedule code; Dennis
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22 | 6fd27407 | ths | * Ferguson, Eric Young and Dana How for comparing notes; and Ray Lau,
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23 | 6fd27407 | ths | * for humouring me on.
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24 | 6fd27407 | ths | *
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25 | 6fd27407 | ths | * Copyright (c) 1988,1989,1990,1991,1992 by Richard Outerbridge.
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26 | 6fd27407 | ths | * (GEnie : OUTER; CIS : [71755,204]) Graven Imagery, 1992.
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27 | 6fd27407 | ths | */
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28 | 6fd27407 | ths | |
29 | 6fd27407 | ths | #include "d3des.h" |
30 | 6fd27407 | ths | |
31 | 6fd27407 | ths | static void scrunch(unsigned char *, unsigned long *); |
32 | 6fd27407 | ths | static void unscrun(unsigned long *, unsigned char *); |
33 | 6fd27407 | ths | static void desfunc(unsigned long *, unsigned long *); |
34 | 6fd27407 | ths | static void cookey(unsigned long *); |
35 | 6fd27407 | ths | |
36 | 6fd27407 | ths | static unsigned long KnL[32] = { 0L }; |
37 | 6fd27407 | ths | |
38 | 6fd27407 | ths | static unsigned short bytebit[8] = { |
39 | 6fd27407 | ths | 01, 02, 04, 010, 020, 040, 0100, 0200 }; |
40 | 6fd27407 | ths | |
41 | 6fd27407 | ths | static unsigned long bigbyte[24] = { |
42 | 6fd27407 | ths | 0x800000L, 0x400000L, 0x200000L, 0x100000L, |
43 | 6fd27407 | ths | 0x80000L, 0x40000L, 0x20000L, 0x10000L, |
44 | 6fd27407 | ths | 0x8000L, 0x4000L, 0x2000L, 0x1000L, |
45 | 6fd27407 | ths | 0x800L, 0x400L, 0x200L, 0x100L, |
46 | 6fd27407 | ths | 0x80L, 0x40L, 0x20L, 0x10L, |
47 | 6fd27407 | ths | 0x8L, 0x4L, 0x2L, 0x1L }; |
48 | 6fd27407 | ths | |
49 | 6fd27407 | ths | /* Use the key schedule specified in the Standard (ANSI X3.92-1981). */
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50 | 6fd27407 | ths | |
51 | 6fd27407 | ths | static unsigned char pc1[56] = { |
52 | 6fd27407 | ths | 56, 48, 40, 32, 24, 16, 8, 0, 57, 49, 41, 33, 25, 17, |
53 | 6fd27407 | ths | 9, 1, 58, 50, 42, 34, 26, 18, 10, 2, 59, 51, 43, 35, |
54 | 6fd27407 | ths | 62, 54, 46, 38, 30, 22, 14, 6, 61, 53, 45, 37, 29, 21, |
55 | 6fd27407 | ths | 13, 5, 60, 52, 44, 36, 28, 20, 12, 4, 27, 19, 11, 3 }; |
56 | 6fd27407 | ths | |
57 | 6fd27407 | ths | static unsigned char totrot[16] = { |
58 | 6fd27407 | ths | 1,2,4,6,8,10,12,14,15,17,19,21,23,25,27,28 }; |
59 | 6fd27407 | ths | |
60 | 6fd27407 | ths | static unsigned char pc2[48] = { |
61 | 6fd27407 | ths | 13, 16, 10, 23, 0, 4, 2, 27, 14, 5, 20, 9, |
62 | 6fd27407 | ths | 22, 18, 11, 3, 25, 7, 15, 6, 26, 19, 12, 1, |
63 | 6fd27407 | ths | 40, 51, 30, 36, 46, 54, 29, 39, 50, 44, 32, 47, |
64 | 6fd27407 | ths | 43, 48, 38, 55, 33, 52, 45, 41, 49, 35, 28, 31 }; |
65 | 6fd27407 | ths | |
66 | 6fd27407 | ths | void deskey(key, edf) /* Thanks to James Gillogly & Phil Karn! */ |
67 | 6fd27407 | ths | unsigned char *key; |
68 | 6fd27407 | ths | int edf;
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69 | 6fd27407 | ths | { |
70 | 6fd27407 | ths | register int i, j, l, m, n; |
71 | 6fd27407 | ths | unsigned char pc1m[56], pcr[56]; |
72 | 6fd27407 | ths | unsigned long kn[32]; |
73 | 6fd27407 | ths | |
74 | 6fd27407 | ths | for ( j = 0; j < 56; j++ ) { |
75 | 6fd27407 | ths | l = pc1[j]; |
76 | 6fd27407 | ths | m = l & 07;
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77 | 6fd27407 | ths | pc1m[j] = (key[l >> 3] & bytebit[m]) ? 1 : 0; |
78 | 6fd27407 | ths | } |
79 | 6fd27407 | ths | for( i = 0; i < 16; i++ ) { |
80 | 6fd27407 | ths | if( edf == DE1 ) m = (15 - i) << 1; |
81 | 6fd27407 | ths | else m = i << 1; |
82 | 6fd27407 | ths | n = m + 1;
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83 | 6fd27407 | ths | kn[m] = kn[n] = 0L;
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84 | 6fd27407 | ths | for( j = 0; j < 28; j++ ) { |
85 | 6fd27407 | ths | l = j + totrot[i]; |
86 | 6fd27407 | ths | if( l < 28 ) pcr[j] = pc1m[l]; |
87 | 6fd27407 | ths | else pcr[j] = pc1m[l - 28]; |
88 | 6fd27407 | ths | } |
89 | 6fd27407 | ths | for( j = 28; j < 56; j++ ) { |
90 | 6fd27407 | ths | l = j + totrot[i]; |
91 | 6fd27407 | ths | if( l < 56 ) pcr[j] = pc1m[l]; |
92 | 6fd27407 | ths | else pcr[j] = pc1m[l - 28]; |
93 | 6fd27407 | ths | } |
94 | 6fd27407 | ths | for( j = 0; j < 24; j++ ) { |
95 | 6fd27407 | ths | if( pcr[pc2[j]] ) kn[m] |= bigbyte[j];
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96 | 6fd27407 | ths | if( pcr[pc2[j+24]] ) kn[n] |= bigbyte[j]; |
97 | 6fd27407 | ths | } |
98 | 6fd27407 | ths | } |
99 | 6fd27407 | ths | cookey(kn); |
100 | 6fd27407 | ths | return;
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101 | 6fd27407 | ths | } |
102 | 6fd27407 | ths | |
103 | 6fd27407 | ths | static void cookey(raw1) |
104 | 6fd27407 | ths | register unsigned long *raw1; |
105 | 6fd27407 | ths | { |
106 | 6fd27407 | ths | register unsigned long *cook, *raw0; |
107 | 6fd27407 | ths | unsigned long dough[32]; |
108 | 6fd27407 | ths | register int i; |
109 | 6fd27407 | ths | |
110 | 6fd27407 | ths | cook = dough; |
111 | 6fd27407 | ths | for( i = 0; i < 16; i++, raw1++ ) { |
112 | 6fd27407 | ths | raw0 = raw1++; |
113 | 6fd27407 | ths | *cook = (*raw0 & 0x00fc0000L) << 6; |
114 | 6fd27407 | ths | *cook |= (*raw0 & 0x00000fc0L) << 10; |
115 | 6fd27407 | ths | *cook |= (*raw1 & 0x00fc0000L) >> 10; |
116 | 6fd27407 | ths | *cook++ |= (*raw1 & 0x00000fc0L) >> 6; |
117 | 6fd27407 | ths | *cook = (*raw0 & 0x0003f000L) << 12; |
118 | 6fd27407 | ths | *cook |= (*raw0 & 0x0000003fL) << 16; |
119 | 6fd27407 | ths | *cook |= (*raw1 & 0x0003f000L) >> 4; |
120 | 6fd27407 | ths | *cook++ |= (*raw1 & 0x0000003fL);
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121 | 6fd27407 | ths | } |
122 | 6fd27407 | ths | usekey(dough); |
123 | 6fd27407 | ths | return;
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124 | 6fd27407 | ths | } |
125 | 6fd27407 | ths | |
126 | 6fd27407 | ths | void cpkey(into)
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127 | 6fd27407 | ths | register unsigned long *into; |
128 | 6fd27407 | ths | { |
129 | 6fd27407 | ths | register unsigned long *from, *endp; |
130 | 6fd27407 | ths | |
131 | 6fd27407 | ths | from = KnL, endp = &KnL[32];
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132 | 6fd27407 | ths | while( from < endp ) *into++ = *from++;
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133 | 6fd27407 | ths | return;
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134 | 6fd27407 | ths | } |
135 | 6fd27407 | ths | |
136 | 6fd27407 | ths | void usekey(from)
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137 | 6fd27407 | ths | register unsigned long *from; |
138 | 6fd27407 | ths | { |
139 | 6fd27407 | ths | register unsigned long *to, *endp; |
140 | 6fd27407 | ths | |
141 | 6fd27407 | ths | to = KnL, endp = &KnL[32];
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142 | 6fd27407 | ths | while( to < endp ) *to++ = *from++;
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143 | 6fd27407 | ths | return;
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144 | 6fd27407 | ths | } |
145 | 6fd27407 | ths | |
146 | 6fd27407 | ths | void des(inblock, outblock)
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147 | 6fd27407 | ths | unsigned char *inblock, *outblock; |
148 | 6fd27407 | ths | { |
149 | 6fd27407 | ths | unsigned long work[2]; |
150 | 6fd27407 | ths | |
151 | 6fd27407 | ths | scrunch(inblock, work); |
152 | 6fd27407 | ths | desfunc(work, KnL); |
153 | 6fd27407 | ths | unscrun(work, outblock); |
154 | 6fd27407 | ths | return;
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155 | 6fd27407 | ths | } |
156 | 6fd27407 | ths | |
157 | 6fd27407 | ths | static void scrunch(outof, into) |
158 | 6fd27407 | ths | register unsigned char *outof; |
159 | 6fd27407 | ths | register unsigned long *into; |
160 | 6fd27407 | ths | { |
161 | 6fd27407 | ths | *into = (*outof++ & 0xffL) << 24; |
162 | 6fd27407 | ths | *into |= (*outof++ & 0xffL) << 16; |
163 | 6fd27407 | ths | *into |= (*outof++ & 0xffL) << 8; |
164 | 6fd27407 | ths | *into++ |= (*outof++ & 0xffL);
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165 | 6fd27407 | ths | *into = (*outof++ & 0xffL) << 24; |
166 | 6fd27407 | ths | *into |= (*outof++ & 0xffL) << 16; |
167 | 6fd27407 | ths | *into |= (*outof++ & 0xffL) << 8; |
168 | 6fd27407 | ths | *into |= (*outof & 0xffL);
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169 | 6fd27407 | ths | return;
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170 | 6fd27407 | ths | } |
171 | 6fd27407 | ths | |
172 | 6fd27407 | ths | static void unscrun(outof, into) |
173 | 6fd27407 | ths | register unsigned long *outof; |
174 | 6fd27407 | ths | register unsigned char *into; |
175 | 6fd27407 | ths | { |
176 | 6fd27407 | ths | *into++ = (unsigned char)((*outof >> 24) & 0xffL); |
177 | 6fd27407 | ths | *into++ = (unsigned char)((*outof >> 16) & 0xffL); |
178 | 6fd27407 | ths | *into++ = (unsigned char)((*outof >> 8) & 0xffL); |
179 | 6fd27407 | ths | *into++ = (unsigned char)(*outof++ & 0xffL); |
180 | 6fd27407 | ths | *into++ = (unsigned char)((*outof >> 24) & 0xffL); |
181 | 6fd27407 | ths | *into++ = (unsigned char)((*outof >> 16) & 0xffL); |
182 | 6fd27407 | ths | *into++ = (unsigned char)((*outof >> 8) & 0xffL); |
183 | 6fd27407 | ths | *into = (unsigned char)(*outof & 0xffL); |
184 | 6fd27407 | ths | return;
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185 | 6fd27407 | ths | } |
186 | 6fd27407 | ths | |
187 | 6fd27407 | ths | static unsigned long SP1[64] = { |
188 | 6fd27407 | ths | 0x01010400L, 0x00000000L, 0x00010000L, 0x01010404L, |
189 | 6fd27407 | ths | 0x01010004L, 0x00010404L, 0x00000004L, 0x00010000L, |
190 | 6fd27407 | ths | 0x00000400L, 0x01010400L, 0x01010404L, 0x00000400L, |
191 | 6fd27407 | ths | 0x01000404L, 0x01010004L, 0x01000000L, 0x00000004L, |
192 | 6fd27407 | ths | 0x00000404L, 0x01000400L, 0x01000400L, 0x00010400L, |
193 | 6fd27407 | ths | 0x00010400L, 0x01010000L, 0x01010000L, 0x01000404L, |
194 | 6fd27407 | ths | 0x00010004L, 0x01000004L, 0x01000004L, 0x00010004L, |
195 | 6fd27407 | ths | 0x00000000L, 0x00000404L, 0x00010404L, 0x01000000L, |
196 | 6fd27407 | ths | 0x00010000L, 0x01010404L, 0x00000004L, 0x01010000L, |
197 | 6fd27407 | ths | 0x01010400L, 0x01000000L, 0x01000000L, 0x00000400L, |
198 | 6fd27407 | ths | 0x01010004L, 0x00010000L, 0x00010400L, 0x01000004L, |
199 | 6fd27407 | ths | 0x00000400L, 0x00000004L, 0x01000404L, 0x00010404L, |
200 | 6fd27407 | ths | 0x01010404L, 0x00010004L, 0x01010000L, 0x01000404L, |
201 | 6fd27407 | ths | 0x01000004L, 0x00000404L, 0x00010404L, 0x01010400L, |
202 | 6fd27407 | ths | 0x00000404L, 0x01000400L, 0x01000400L, 0x00000000L, |
203 | 6fd27407 | ths | 0x00010004L, 0x00010400L, 0x00000000L, 0x01010004L }; |
204 | 6fd27407 | ths | |
205 | 6fd27407 | ths | static unsigned long SP2[64] = { |
206 | 6fd27407 | ths | 0x80108020L, 0x80008000L, 0x00008000L, 0x00108020L, |
207 | 6fd27407 | ths | 0x00100000L, 0x00000020L, 0x80100020L, 0x80008020L, |
208 | 6fd27407 | ths | 0x80000020L, 0x80108020L, 0x80108000L, 0x80000000L, |
209 | 6fd27407 | ths | 0x80008000L, 0x00100000L, 0x00000020L, 0x80100020L, |
210 | 6fd27407 | ths | 0x00108000L, 0x00100020L, 0x80008020L, 0x00000000L, |
211 | 6fd27407 | ths | 0x80000000L, 0x00008000L, 0x00108020L, 0x80100000L, |
212 | 6fd27407 | ths | 0x00100020L, 0x80000020L, 0x00000000L, 0x00108000L, |
213 | 6fd27407 | ths | 0x00008020L, 0x80108000L, 0x80100000L, 0x00008020L, |
214 | 6fd27407 | ths | 0x00000000L, 0x00108020L, 0x80100020L, 0x00100000L, |
215 | 6fd27407 | ths | 0x80008020L, 0x80100000L, 0x80108000L, 0x00008000L, |
216 | 6fd27407 | ths | 0x80100000L, 0x80008000L, 0x00000020L, 0x80108020L, |
217 | 6fd27407 | ths | 0x00108020L, 0x00000020L, 0x00008000L, 0x80000000L, |
218 | 6fd27407 | ths | 0x00008020L, 0x80108000L, 0x00100000L, 0x80000020L, |
219 | 6fd27407 | ths | 0x00100020L, 0x80008020L, 0x80000020L, 0x00100020L, |
220 | 6fd27407 | ths | 0x00108000L, 0x00000000L, 0x80008000L, 0x00008020L, |
221 | 6fd27407 | ths | 0x80000000L, 0x80100020L, 0x80108020L, 0x00108000L }; |
222 | 6fd27407 | ths | |
223 | 6fd27407 | ths | static unsigned long SP3[64] = { |
224 | 6fd27407 | ths | 0x00000208L, 0x08020200L, 0x00000000L, 0x08020008L, |
225 | 6fd27407 | ths | 0x08000200L, 0x00000000L, 0x00020208L, 0x08000200L, |
226 | 6fd27407 | ths | 0x00020008L, 0x08000008L, 0x08000008L, 0x00020000L, |
227 | 6fd27407 | ths | 0x08020208L, 0x00020008L, 0x08020000L, 0x00000208L, |
228 | 6fd27407 | ths | 0x08000000L, 0x00000008L, 0x08020200L, 0x00000200L, |
229 | 6fd27407 | ths | 0x00020200L, 0x08020000L, 0x08020008L, 0x00020208L, |
230 | 6fd27407 | ths | 0x08000208L, 0x00020200L, 0x00020000L, 0x08000208L, |
231 | 6fd27407 | ths | 0x00000008L, 0x08020208L, 0x00000200L, 0x08000000L, |
232 | 6fd27407 | ths | 0x08020200L, 0x08000000L, 0x00020008L, 0x00000208L, |
233 | 6fd27407 | ths | 0x00020000L, 0x08020200L, 0x08000200L, 0x00000000L, |
234 | 6fd27407 | ths | 0x00000200L, 0x00020008L, 0x08020208L, 0x08000200L, |
235 | 6fd27407 | ths | 0x08000008L, 0x00000200L, 0x00000000L, 0x08020008L, |
236 | 6fd27407 | ths | 0x08000208L, 0x00020000L, 0x08000000L, 0x08020208L, |
237 | 6fd27407 | ths | 0x00000008L, 0x00020208L, 0x00020200L, 0x08000008L, |
238 | 6fd27407 | ths | 0x08020000L, 0x08000208L, 0x00000208L, 0x08020000L, |
239 | 6fd27407 | ths | 0x00020208L, 0x00000008L, 0x08020008L, 0x00020200L }; |
240 | 6fd27407 | ths | |
241 | 6fd27407 | ths | static unsigned long SP4[64] = { |
242 | 6fd27407 | ths | 0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, |
243 | 6fd27407 | ths | 0x00802080L, 0x00800081L, 0x00800001L, 0x00002001L, |
244 | 6fd27407 | ths | 0x00000000L, 0x00802000L, 0x00802000L, 0x00802081L, |
245 | 6fd27407 | ths | 0x00000081L, 0x00000000L, 0x00800080L, 0x00800001L, |
246 | 6fd27407 | ths | 0x00000001L, 0x00002000L, 0x00800000L, 0x00802001L, |
247 | 6fd27407 | ths | 0x00000080L, 0x00800000L, 0x00002001L, 0x00002080L, |
248 | 6fd27407 | ths | 0x00800081L, 0x00000001L, 0x00002080L, 0x00800080L, |
249 | 6fd27407 | ths | 0x00002000L, 0x00802080L, 0x00802081L, 0x00000081L, |
250 | 6fd27407 | ths | 0x00800080L, 0x00800001L, 0x00802000L, 0x00802081L, |
251 | 6fd27407 | ths | 0x00000081L, 0x00000000L, 0x00000000L, 0x00802000L, |
252 | 6fd27407 | ths | 0x00002080L, 0x00800080L, 0x00800081L, 0x00000001L, |
253 | 6fd27407 | ths | 0x00802001L, 0x00002081L, 0x00002081L, 0x00000080L, |
254 | 6fd27407 | ths | 0x00802081L, 0x00000081L, 0x00000001L, 0x00002000L, |
255 | 6fd27407 | ths | 0x00800001L, 0x00002001L, 0x00802080L, 0x00800081L, |
256 | 6fd27407 | ths | 0x00002001L, 0x00002080L, 0x00800000L, 0x00802001L, |
257 | 6fd27407 | ths | 0x00000080L, 0x00800000L, 0x00002000L, 0x00802080L }; |
258 | 6fd27407 | ths | |
259 | 6fd27407 | ths | static unsigned long SP5[64] = { |
260 | 6fd27407 | ths | 0x00000100L, 0x02080100L, 0x02080000L, 0x42000100L, |
261 | 6fd27407 | ths | 0x00080000L, 0x00000100L, 0x40000000L, 0x02080000L, |
262 | 6fd27407 | ths | 0x40080100L, 0x00080000L, 0x02000100L, 0x40080100L, |
263 | 6fd27407 | ths | 0x42000100L, 0x42080000L, 0x00080100L, 0x40000000L, |
264 | 6fd27407 | ths | 0x02000000L, 0x40080000L, 0x40080000L, 0x00000000L, |
265 | 6fd27407 | ths | 0x40000100L, 0x42080100L, 0x42080100L, 0x02000100L, |
266 | 6fd27407 | ths | 0x42080000L, 0x40000100L, 0x00000000L, 0x42000000L, |
267 | 6fd27407 | ths | 0x02080100L, 0x02000000L, 0x42000000L, 0x00080100L, |
268 | 6fd27407 | ths | 0x00080000L, 0x42000100L, 0x00000100L, 0x02000000L, |
269 | 6fd27407 | ths | 0x40000000L, 0x02080000L, 0x42000100L, 0x40080100L, |
270 | 6fd27407 | ths | 0x02000100L, 0x40000000L, 0x42080000L, 0x02080100L, |
271 | 6fd27407 | ths | 0x40080100L, 0x00000100L, 0x02000000L, 0x42080000L, |
272 | 6fd27407 | ths | 0x42080100L, 0x00080100L, 0x42000000L, 0x42080100L, |
273 | 6fd27407 | ths | 0x02080000L, 0x00000000L, 0x40080000L, 0x42000000L, |
274 | 6fd27407 | ths | 0x00080100L, 0x02000100L, 0x40000100L, 0x00080000L, |
275 | 6fd27407 | ths | 0x00000000L, 0x40080000L, 0x02080100L, 0x40000100L }; |
276 | 6fd27407 | ths | |
277 | 6fd27407 | ths | static unsigned long SP6[64] = { |
278 | 6fd27407 | ths | 0x20000010L, 0x20400000L, 0x00004000L, 0x20404010L, |
279 | 6fd27407 | ths | 0x20400000L, 0x00000010L, 0x20404010L, 0x00400000L, |
280 | 6fd27407 | ths | 0x20004000L, 0x00404010L, 0x00400000L, 0x20000010L, |
281 | 6fd27407 | ths | 0x00400010L, 0x20004000L, 0x20000000L, 0x00004010L, |
282 | 6fd27407 | ths | 0x00000000L, 0x00400010L, 0x20004010L, 0x00004000L, |
283 | 6fd27407 | ths | 0x00404000L, 0x20004010L, 0x00000010L, 0x20400010L, |
284 | 6fd27407 | ths | 0x20400010L, 0x00000000L, 0x00404010L, 0x20404000L, |
285 | 6fd27407 | ths | 0x00004010L, 0x00404000L, 0x20404000L, 0x20000000L, |
286 | 6fd27407 | ths | 0x20004000L, 0x00000010L, 0x20400010L, 0x00404000L, |
287 | 6fd27407 | ths | 0x20404010L, 0x00400000L, 0x00004010L, 0x20000010L, |
288 | 6fd27407 | ths | 0x00400000L, 0x20004000L, 0x20000000L, 0x00004010L, |
289 | 6fd27407 | ths | 0x20000010L, 0x20404010L, 0x00404000L, 0x20400000L, |
290 | 6fd27407 | ths | 0x00404010L, 0x20404000L, 0x00000000L, 0x20400010L, |
291 | 6fd27407 | ths | 0x00000010L, 0x00004000L, 0x20400000L, 0x00404010L, |
292 | 6fd27407 | ths | 0x00004000L, 0x00400010L, 0x20004010L, 0x00000000L, |
293 | 6fd27407 | ths | 0x20404000L, 0x20000000L, 0x00400010L, 0x20004010L }; |
294 | 6fd27407 | ths | |
295 | 6fd27407 | ths | static unsigned long SP7[64] = { |
296 | 6fd27407 | ths | 0x00200000L, 0x04200002L, 0x04000802L, 0x00000000L, |
297 | 6fd27407 | ths | 0x00000800L, 0x04000802L, 0x00200802L, 0x04200800L, |
298 | 6fd27407 | ths | 0x04200802L, 0x00200000L, 0x00000000L, 0x04000002L, |
299 | 6fd27407 | ths | 0x00000002L, 0x04000000L, 0x04200002L, 0x00000802L, |
300 | 6fd27407 | ths | 0x04000800L, 0x00200802L, 0x00200002L, 0x04000800L, |
301 | 6fd27407 | ths | 0x04000002L, 0x04200000L, 0x04200800L, 0x00200002L, |
302 | 6fd27407 | ths | 0x04200000L, 0x00000800L, 0x00000802L, 0x04200802L, |
303 | 6fd27407 | ths | 0x00200800L, 0x00000002L, 0x04000000L, 0x00200800L, |
304 | 6fd27407 | ths | 0x04000000L, 0x00200800L, 0x00200000L, 0x04000802L, |
305 | 6fd27407 | ths | 0x04000802L, 0x04200002L, 0x04200002L, 0x00000002L, |
306 | 6fd27407 | ths | 0x00200002L, 0x04000000L, 0x04000800L, 0x00200000L, |
307 | 6fd27407 | ths | 0x04200800L, 0x00000802L, 0x00200802L, 0x04200800L, |
308 | 6fd27407 | ths | 0x00000802L, 0x04000002L, 0x04200802L, 0x04200000L, |
309 | 6fd27407 | ths | 0x00200800L, 0x00000000L, 0x00000002L, 0x04200802L, |
310 | 6fd27407 | ths | 0x00000000L, 0x00200802L, 0x04200000L, 0x00000800L, |
311 | 6fd27407 | ths | 0x04000002L, 0x04000800L, 0x00000800L, 0x00200002L }; |
312 | 6fd27407 | ths | |
313 | 6fd27407 | ths | static unsigned long SP8[64] = { |
314 | 6fd27407 | ths | 0x10001040L, 0x00001000L, 0x00040000L, 0x10041040L, |
315 | 6fd27407 | ths | 0x10000000L, 0x10001040L, 0x00000040L, 0x10000000L, |
316 | 6fd27407 | ths | 0x00040040L, 0x10040000L, 0x10041040L, 0x00041000L, |
317 | 6fd27407 | ths | 0x10041000L, 0x00041040L, 0x00001000L, 0x00000040L, |
318 | 6fd27407 | ths | 0x10040000L, 0x10000040L, 0x10001000L, 0x00001040L, |
319 | 6fd27407 | ths | 0x00041000L, 0x00040040L, 0x10040040L, 0x10041000L, |
320 | 6fd27407 | ths | 0x00001040L, 0x00000000L, 0x00000000L, 0x10040040L, |
321 | 6fd27407 | ths | 0x10000040L, 0x10001000L, 0x00041040L, 0x00040000L, |
322 | 6fd27407 | ths | 0x00041040L, 0x00040000L, 0x10041000L, 0x00001000L, |
323 | 6fd27407 | ths | 0x00000040L, 0x10040040L, 0x00001000L, 0x00041040L, |
324 | 6fd27407 | ths | 0x10001000L, 0x00000040L, 0x10000040L, 0x10040000L, |
325 | 6fd27407 | ths | 0x10040040L, 0x10000000L, 0x00040000L, 0x10001040L, |
326 | 6fd27407 | ths | 0x00000000L, 0x10041040L, 0x00040040L, 0x10000040L, |
327 | 6fd27407 | ths | 0x10040000L, 0x10001000L, 0x10001040L, 0x00000000L, |
328 | 6fd27407 | ths | 0x10041040L, 0x00041000L, 0x00041000L, 0x00001040L, |
329 | 6fd27407 | ths | 0x00001040L, 0x00040040L, 0x10000000L, 0x10041000L }; |
330 | 6fd27407 | ths | |
331 | 6fd27407 | ths | static void desfunc(block, keys) |
332 | 6fd27407 | ths | register unsigned long *block, *keys; |
333 | 6fd27407 | ths | { |
334 | 6fd27407 | ths | register unsigned long fval, work, right, leftt; |
335 | 6fd27407 | ths | register int round; |
336 | 6fd27407 | ths | |
337 | 6fd27407 | ths | leftt = block[0];
|
338 | 6fd27407 | ths | right = block[1];
|
339 | 6fd27407 | ths | work = ((leftt >> 4) ^ right) & 0x0f0f0f0fL; |
340 | 6fd27407 | ths | right ^= work; |
341 | 6fd27407 | ths | leftt ^= (work << 4);
|
342 | 6fd27407 | ths | work = ((leftt >> 16) ^ right) & 0x0000ffffL; |
343 | 6fd27407 | ths | right ^= work; |
344 | 6fd27407 | ths | leftt ^= (work << 16);
|
345 | 6fd27407 | ths | work = ((right >> 2) ^ leftt) & 0x33333333L; |
346 | 6fd27407 | ths | leftt ^= work; |
347 | 6fd27407 | ths | right ^= (work << 2);
|
348 | 6fd27407 | ths | work = ((right >> 8) ^ leftt) & 0x00ff00ffL; |
349 | 6fd27407 | ths | leftt ^= work; |
350 | 6fd27407 | ths | right ^= (work << 8);
|
351 | 6fd27407 | ths | right = ((right << 1) | ((right >> 31) & 1L)) & 0xffffffffL; |
352 | 6fd27407 | ths | work = (leftt ^ right) & 0xaaaaaaaaL;
|
353 | 6fd27407 | ths | leftt ^= work; |
354 | 6fd27407 | ths | right ^= work; |
355 | 6fd27407 | ths | leftt = ((leftt << 1) | ((leftt >> 31) & 1L)) & 0xffffffffL; |
356 | 6fd27407 | ths | |
357 | 6fd27407 | ths | for( round = 0; round < 8; round++ ) { |
358 | 6fd27407 | ths | work = (right << 28) | (right >> 4); |
359 | 6fd27407 | ths | work ^= *keys++; |
360 | 6fd27407 | ths | fval = SP7[ work & 0x3fL];
|
361 | 6fd27407 | ths | fval |= SP5[(work >> 8) & 0x3fL]; |
362 | 6fd27407 | ths | fval |= SP3[(work >> 16) & 0x3fL]; |
363 | 6fd27407 | ths | fval |= SP1[(work >> 24) & 0x3fL]; |
364 | 6fd27407 | ths | work = right ^ *keys++; |
365 | 6fd27407 | ths | fval |= SP8[ work & 0x3fL];
|
366 | 6fd27407 | ths | fval |= SP6[(work >> 8) & 0x3fL]; |
367 | 6fd27407 | ths | fval |= SP4[(work >> 16) & 0x3fL]; |
368 | 6fd27407 | ths | fval |= SP2[(work >> 24) & 0x3fL]; |
369 | 6fd27407 | ths | leftt ^= fval; |
370 | 6fd27407 | ths | work = (leftt << 28) | (leftt >> 4); |
371 | 6fd27407 | ths | work ^= *keys++; |
372 | 6fd27407 | ths | fval = SP7[ work & 0x3fL];
|
373 | 6fd27407 | ths | fval |= SP5[(work >> 8) & 0x3fL]; |
374 | 6fd27407 | ths | fval |= SP3[(work >> 16) & 0x3fL]; |
375 | 6fd27407 | ths | fval |= SP1[(work >> 24) & 0x3fL]; |
376 | 6fd27407 | ths | work = leftt ^ *keys++; |
377 | 6fd27407 | ths | fval |= SP8[ work & 0x3fL];
|
378 | 6fd27407 | ths | fval |= SP6[(work >> 8) & 0x3fL]; |
379 | 6fd27407 | ths | fval |= SP4[(work >> 16) & 0x3fL]; |
380 | 6fd27407 | ths | fval |= SP2[(work >> 24) & 0x3fL]; |
381 | 6fd27407 | ths | right ^= fval; |
382 | 6fd27407 | ths | } |
383 | 6fd27407 | ths | |
384 | 6fd27407 | ths | right = (right << 31) | (right >> 1); |
385 | 6fd27407 | ths | work = (leftt ^ right) & 0xaaaaaaaaL;
|
386 | 6fd27407 | ths | leftt ^= work; |
387 | 6fd27407 | ths | right ^= work; |
388 | 6fd27407 | ths | leftt = (leftt << 31) | (leftt >> 1); |
389 | 6fd27407 | ths | work = ((leftt >> 8) ^ right) & 0x00ff00ffL; |
390 | 6fd27407 | ths | right ^= work; |
391 | 6fd27407 | ths | leftt ^= (work << 8);
|
392 | 6fd27407 | ths | work = ((leftt >> 2) ^ right) & 0x33333333L; |
393 | 6fd27407 | ths | right ^= work; |
394 | 6fd27407 | ths | leftt ^= (work << 2);
|
395 | 6fd27407 | ths | work = ((right >> 16) ^ leftt) & 0x0000ffffL; |
396 | 6fd27407 | ths | leftt ^= work; |
397 | 6fd27407 | ths | right ^= (work << 16);
|
398 | 6fd27407 | ths | work = ((right >> 4) ^ leftt) & 0x0f0f0f0fL; |
399 | 6fd27407 | ths | leftt ^= work; |
400 | 6fd27407 | ths | right ^= (work << 4);
|
401 | 6fd27407 | ths | *block++ = right; |
402 | 6fd27407 | ths | *block = leftt; |
403 | 6fd27407 | ths | return;
|
404 | 6fd27407 | ths | } |
405 | 6fd27407 | ths | |
406 | 6fd27407 | ths | /* Validation sets:
|
407 | 6fd27407 | ths | *
|
408 | 6fd27407 | ths | * Single-length key, single-length plaintext -
|
409 | 6fd27407 | ths | * Key : 0123 4567 89ab cdef
|
410 | 6fd27407 | ths | * Plain : 0123 4567 89ab cde7
|
411 | 6fd27407 | ths | * Cipher : c957 4425 6a5e d31d
|
412 | 6fd27407 | ths | *
|
413 | 6fd27407 | ths | * Double-length key, single-length plaintext -
|
414 | 6fd27407 | ths | * Key : 0123 4567 89ab cdef fedc ba98 7654 3210
|
415 | 6fd27407 | ths | * Plain : 0123 4567 89ab cde7
|
416 | 6fd27407 | ths | * Cipher : 7f1d 0a77 826b 8aff
|
417 | 6fd27407 | ths | *
|
418 | 6fd27407 | ths | * Double-length key, double-length plaintext -
|
419 | 6fd27407 | ths | * Key : 0123 4567 89ab cdef fedc ba98 7654 3210
|
420 | 6fd27407 | ths | * Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff
|
421 | 6fd27407 | ths | * Cipher : 27a0 8440 406a df60 278f 47cf 42d6 15d7
|
422 | 6fd27407 | ths | *
|
423 | 6fd27407 | ths | * Triple-length key, single-length plaintext -
|
424 | 6fd27407 | ths | * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567
|
425 | 6fd27407 | ths | * Plain : 0123 4567 89ab cde7
|
426 | 6fd27407 | ths | * Cipher : de0b 7c06 ae5e 0ed5
|
427 | 6fd27407 | ths | *
|
428 | 6fd27407 | ths | * Triple-length key, double-length plaintext -
|
429 | 6fd27407 | ths | * Key : 0123 4567 89ab cdef fedc ba98 7654 3210 89ab cdef 0123 4567
|
430 | 6fd27407 | ths | * Plain : 0123 4567 89ab cdef 0123 4567 89ab cdff
|
431 | 6fd27407 | ths | * Cipher : ad0d 1b30 ac17 cf07 0ed1 1c63 81e4 4de5
|
432 | 6fd27407 | ths | *
|
433 | 6fd27407 | ths | * d3des V5.0a rwo 9208.07 18:44 Graven Imagery
|
434 | 6fd27407 | ths | **********************************************************************/ |