#include <agnix/agnix.h>#include <agnix/memory.h>#include <agnix/crypt.h>Include dependency graph for DES.c:
Go to the source code of this file.
Functions | |
| int | DES_crypt (char *in_buf, char *out_buf, char *passwd, int size) |
| int | DES_decrypt (char *in_buf, char *out_buf, char *passwd, int size) |
| int | DES_setup (void) |
| int | DES_init (void) |
Variables | |
| u8 | PSW [] |
| u8 | IP [] |
| u8 | IPR [] |
| u8 | PC1 [] |
| u8 | PC2 [] |
| u8 | tab_rotate [] = { 1, 1, 2, 2, 2, 2, 2, 2, 1, 2, 2, 2, 2, 2, 2, 1 } |
| u8 | E [] |
| u8 | S1 [] |
| u8 | S2 [] |
| u8 | S3 [] |
| u8 | S4 [] |
| u8 | S5 [] |
| u8 | S6 [] |
| u8 | S7 [] |
| u8 | S8 [] |
| u8 | P [] |
| int | DES_d |
| crypt_algo_s | DES_algo |
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Definition at line 273 of file DES.c. References IP, IPR, and memset(). 00274 {
00275 u32 ile;
00276 int i;
00277 int l;
00278 u8 PIP[72];
00279 u8 PIPr[72];
00280 u8 keys[6*16];
00281 u8 des_key[10];
00282 // u8 *out_buf = (u8 *)get_free_pages(0);
00283 // u8 *out_buf_ptr = out_buf;
00284
00285 if (size > PAGE_SIZE)
00286 return -1;
00287
00288 memset(PIP, 0, sizeof(PIP));
00289 memset(out_buf, 0, size + 2);
00290 memset(des_key, 0, sizeof(des_key));
00291
00292 generate_key(des_key, passwd);
00293
00294 for (ile = 0; ile <= ((size - 1) >> 3); ile++)
00295 {
00296
00297 // rotate_key(des_key); /* changed by dembol */
00298 memset(keys, 0, sizeof(keys));
00299
00300 keys_gen(keys, des_key);
00301
00302 for (i = 0; i < 8; i++)
00303 {
00304 des_key[i] = keys[i];
00305 des_key[i] ^= keys[i + 4];
00306 }
00307
00308 for (i = 0; i < 64; i++)
00309 {
00310 l = IP[i] - 1;
00311 PIP[i] = (in_buf[l >> 3] >> (l & 7)) & 1;
00312 }
00313
00314 for (i = 0; i < 8; i++)
00315 {
00316 one_cycle(PIP + 32, PIP, keys + i * 2 * 6);
00317 one_cycle(PIP, PIP + 32, keys + i * 2 * 6 + 6);
00318 }
00319
00320 for (i = 0; i < 32; i++)
00321 {
00322 PIPr[i] = PIP[32 + i];
00323 PIPr[i + 32] = PIP[i];
00324 }
00325
00326 for (i = 0; i < 64; i++)
00327 {
00328 l = IPR[i] - 1;
00329 out_buf[i >> 3] |= PIPr[l] << (i & 7);
00330 }
00331
00332 in_buf += 8;
00333 out_buf += 8;
00334 }
00335
00336 // memcpy(in_buf, out_buf_ptr, size);
00337 // put_free_pages((u32)out_buf_ptr, 0);
00338
00339 return 0;
00340 }
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Definition at line 342 of file DES.c. References IP, IPR, and memset(). 00343 {
00344 u32 ile;
00345 int i;
00346 int j;
00347 int l;
00348 u8 PIP[70];
00349 u8 PIPr[70];
00350 u8 keys[6*16];
00351 u8 des_key[10];
00352 // u8 *out_buf = (u8 *)get_free_pages(0);
00353 // u8 *out_buf_ptr = out_buf;
00354
00355 if (size > PAGE_SIZE)
00356 return -1;
00357
00358 memset(PIP, 0, sizeof(PIP));
00359 memset(out_buf, 0, size + 2);
00360 memset(des_key, 0, sizeof(des_key));
00361
00362 generate_key(des_key, passwd);
00363
00364 for (ile = 0; ile <= ((size - 1) >> 3); ile++)
00365 {
00366
00367 // rotate_key(des_key);
00368 memset(keys, 0, sizeof(keys));
00369 keys_gen(keys, des_key);
00370
00371 for (i = 0; i < 8; i++)
00372 {
00373 des_key[i] = keys[i];
00374 des_key[i] ^= keys[i + 4];
00375 }
00376
00377 for (i = 0; i < 64; i++)
00378 {
00379 l = IP[i] - 1;
00380 PIP[i] = (in_buf[l >> 3] >> (l & 7)) & 1;
00381 }
00382
00383 j = 7;
00384 for (i = 0; i < 8; i++)
00385 {
00386 one_cycle(PIP + 32, PIP, keys + j * 2 * 6 + 6);
00387 one_cycle(PIP, PIP + 32, keys + j * 2 * 6);
00388 j--;
00389 }
00390
00391 for (i = 0; i < 32; i++)
00392 {
00393 PIPr[i] = PIP[32 + i];
00394 PIPr[i + 32] = PIP[i];
00395 }
00396
00397 for (i = 0; i < 64; i++)
00398 {
00399 l = IPR[i] - 1;
00400 out_buf[i >> 3] |= PIPr[l] << (i & 7);
00401 }
00402
00403 in_buf += 8;
00404 out_buf += 8;
00405 }
00406
00407 return 0;
00408 }
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Definition at line 422 of file DES.c. References DES_d, and register_crypt_algo(). Referenced by crypt_init(). 00423 {
00424 DES_d = register_crypt_algo(&DES_algo);
00425
00426 if (DES_d < 0)
00427 return -1;
00428
00429 return 0;
00430 }
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Definition at line 410 of file DES.c. 00411 {
00412 return 0;
00413 }
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Initial value: {
"DES",
DES_setup,
DES_crypt,
DES_decrypt
}
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Definition at line 129 of file DES.c. Referenced by DES_init(). |
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Initial value: { 32, 1, 2, 3, 4, 5,
4, 5, 6, 7, 8, 9,
8, 9, 10, 11, 12, 13,
12, 13, 14, 15, 16, 17,
16, 17, 18, 19, 20, 21,
20, 21, 22, 23, 24, 25,
24, 25, 26, 27, 28, 29,
28, 29, 30, 31, 32, 1 }
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Initial value: { 58, 50, 42, 34, 26, 18, 10, 2,
60, 52, 44, 36, 28, 20, 12, 4,
62, 54, 46, 38, 30, 22, 14, 6,
64, 56, 48, 40, 32, 24, 16, 8,
57, 49, 41, 33, 25, 17, 9, 1,
59, 51, 43, 35, 27, 19, 11, 3,
61, 53, 45, 37, 29, 21, 13, 5,
63, 55, 47, 39, 31, 23, 15, 7}
Definition at line 31 of file DES.c. Referenced by DES_crypt(), and DES_decrypt(). |
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Initial value: { 40, 8, 48, 16, 56, 24, 64, 32,
39, 7, 47, 15, 55, 23, 63, 31,
38, 6, 46, 14, 54, 22, 62, 30,
37, 5, 45, 13, 53, 21, 61, 29,
36, 4, 44, 12, 52, 20, 60, 28,
35, 3, 43, 11, 51, 19, 59, 27,
34, 2, 42, 10, 50, 18, 58, 26,
33, 1, 41, 9, 49, 17, 57, 25}
Definition at line 40 of file DES.c. Referenced by DES_crypt(), and DES_decrypt(). |
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Initial value: { 16, 7, 20, 21,
29, 12, 28, 17,
1, 15, 23, 26,
5, 18, 31, 10,
2, 8, 24, 14,
32, 27, 3, 9,
19, 13, 30, 6,
22, 11, 4, 25 }
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Initial value: { 57, 49, 41, 33, 25, 17, 9,
1, 58, 50, 42, 34, 26, 18,
10, 2, 59, 51, 43, 35, 27,
19, 11, 3, 60, 52, 44, 36,
63, 55, 47, 39, 31, 23, 15,
7, 62, 54, 46, 38, 30, 22,
14, 6, 61, 53, 45, 37, 29,
21, 13, 5, 28, 20, 12, 4 }
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Initial value: { 14, 17, 11, 24, 1, 5,
3, 28, 15, 6, 21, 10,
23, 19, 12, 4, 21, 8,
16, 7, 27, 20, 13, 2,
41, 52, 31, 37, 47, 55,
30, 40, 51, 45, 33, 48,
44, 49, 39, 56, 34, 53,
46, 42, 50, 36, 29, 32 }
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Initial value: { 64, 60, 56, 52, 48, 44, 40, 36,
32, 28, 24, 20, 16, 12, 8, 4,
63, 59, 55, 51, 47, 43, 39, 35,
31, 27, 23, 19, 15, 11, 7, 3,
62, 58, 54, 50, 46, 42, 38, 34,
30, 26, 22, 18, 14, 10, 6, 2,
61, 57, 53, 49, 45, 41, 37, 33,
29, 25, 21, 17, 13, 9, 5, 1}
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Initial value: { 14, 4, 13, 1, 2, 15, 11, 8, 3, 10, 6, 12, 5, 9, 0, 7,
0, 15, 7, 4, 14, 2, 13, 1, 10, 6, 12, 11, 9, 5, 3, 8,
4, 1, 14, 8, 13, 6, 2, 11, 15, 2, 9, 7, 3, 10, 5, 0,
15, 12, 8, 2, 4, 9, 1, 7, 5, 11, 3, 14, 10, 0, 6, 13}
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Initial value: { 15, 1, 8, 14, 6, 11, 3, 4, 9, 7, 2, 13, 12, 0, 5, 10,
3, 13, 4, 7, 15, 2, 8, 14, 12, 0, 1, 10, 6, 9, 11, 5,
0, 14, 7, 11, 10, 4, 13, 1, 5, 8, 12, 6, 9, 3, 2, 15,
13, 8, 10, 1, 3, 15, 4, 2, 11, 6, 7, 12, 0, 5, 14, 9}
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Initial value: { 10, 0, 9, 14, 6, 3, 15, 5, 1, 13, 12, 7, 11, 4, 2, 8,
13, 7, 0, 9, 3, 4, 6, 10, 2, 8, 5, 14, 12, 11, 15, 1,
13, 6, 4, 9, 8, 15, 3, 0, 11, 1, 2, 12, 5, 10, 14, 7,
1, 10, 13, 0, 6, 9, 8, 7, 4, 15, 14, 3, 11, 5, 2, 12}
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Initial value: { 7, 13, 14, 3, 0, 6, 9, 10, 1, 2, 8, 5, 1, 12, 4, 15,
13, 8, 11, 5, 6, 15, 0, 3, 4, 7, 2, 12, 1, 10, 14, 9,
10, 6, 9, 0, 12, 11, 7, 13, 15, 1, 3, 14, 5, 2, 8, 4,
3, 15, 0, 6, 10, 1, 13, 8, 9, 4, 5, 11, 12, 7, 2, 14}
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Initial value: { 2, 12, 4, 1, 7, 10, 11, 6, 8, 5, 3, 15, 13, 0, 14, 9,
14, 11, 2, 12, 4, 7, 13, 1, 5, 0, 15, 10, 3, 9, 8, 6,
4, 2, 1, 11, 10, 13, 7, 8, 15, 9, 12, 5, 6, 3, 0, 14,
11, 8, 12, 7, 1, 14, 2, 13, 6, 15, 0, 9, 10, 4, 5, 3}
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Initial value: { 12, 1, 10, 15, 9, 2, 6, 8, 0, 13, 3, 4, 14, 7, 5, 11,
10, 15, 4, 2, 7, 12, 9, 5, 6, 1, 13, 14, 0, 11, 3, 8,
9, 14, 15, 5, 2, 8, 12, 3, 7, 0, 4, 10, 1, 13, 11, 6,
4, 3, 2, 12, 9, 5, 15, 10, 11, 14, 1, 7, 6, 0, 8, 13}
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Initial value: { 4, 11, 2, 14, 15, 0, 8, 13, 3, 12, 9, 7, 5, 10, 6, 1,
13, 0, 11, 7, 4, 9, 1, 10, 14, 3, 5, 12, 2, 15, 8, 6,
1, 4, 11, 13, 12, 3, 7, 14, 10, 15, 6, 8, 0, 5, 9, 2,
6, 11, 13, 8, 1, 4, 10, 7, 9, 5, 0, 15, 14, 2, 3, 12}
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Initial value: { 13, 2, 8, 4, 6, 15, 11, 1, 10, 9, 3, 14, 5, 0, 12, 7,
1, 15, 13, 8, 10, 3, 7, 4, 12, 5, 6, 11, 0, 14, 9, 2,
7, 11, 4, 1, 9, 12, 14, 2, 0, 6, 10, 13, 15, 3, 5, 8,
2, 1, 14, 7, 4, 10, 8, 13, 15, 12, 9, 0, 3, 5, 6, 11}
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