forked from b4winckler/macvim
/
blowfish.c
707 lines (653 loc) · 23.7 KB
/
blowfish.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
/* vi:set ts=8 sts=4 sw=4:
*
* VIM - Vi IMproved by Bram Moolenaar
*
* Do ":help uganda" in Vim to read copying and usage conditions.
* Do ":help credits" in Vim to see a list of people who contributed.
* See README.txt for an overview of the Vim source code.
*
* Blowfish encryption for Vim; in Blowfish output feedback mode.
* Contributed by Mohsin Ahmed, http://www.cs.albany.edu/~mosh
* Based on http://www.schneier.com/blowfish.html by Bruce Schneier.
*/
#include "vim.h"
#if defined(FEAT_CRYPT)
#define ARRAY_LENGTH(A) (sizeof(A)/sizeof(A[0]))
#define BF_BLOCK 8
#define BF_BLOCK_MASK 7
#define BF_OFB_LEN (8*(BF_BLOCK))
typedef union {
UINT32_T ul[2];
char_u uc[8];
} block8;
#if defined(WIN3264) || defined(DOS32)
/* MS-Windows is always little endian */
#else
# ifdef HAVE_CONFIG_H
/* in configure.in AC_C_BIGENDIAN() defines WORDS_BIGENDIAN when needed */
# else
error!
Please change this code to define WORDS_BIGENDIAN for big-endian machines.
# endif
#endif
static void bf_e_block __ARGS((UINT32_T *p_xl, UINT32_T *p_xr));
static void bf_e_cblock __ARGS((char_u *block));
static int bf_check_tables __ARGS((UINT32_T a_ipa[18], UINT32_T a_sbi[4][256], UINT32_T val));
static int bf_self_test __ARGS((void));
/* Blowfish code */
static UINT32_T pax[18];
static UINT32_T ipa[18] = {
0x243f6a88u, 0x85a308d3u, 0x13198a2eu,
0x03707344u, 0xa4093822u, 0x299f31d0u,
0x082efa98u, 0xec4e6c89u, 0x452821e6u,
0x38d01377u, 0xbe5466cfu, 0x34e90c6cu,
0xc0ac29b7u, 0xc97c50ddu, 0x3f84d5b5u,
0xb5470917u, 0x9216d5d9u, 0x8979fb1bu
};
static UINT32_T sbx[4][256];
static UINT32_T sbi[4][256] = {
{0xd1310ba6u, 0x98dfb5acu, 0x2ffd72dbu, 0xd01adfb7u,
0xb8e1afedu, 0x6a267e96u, 0xba7c9045u, 0xf12c7f99u,
0x24a19947u, 0xb3916cf7u, 0x0801f2e2u, 0x858efc16u,
0x636920d8u, 0x71574e69u, 0xa458fea3u, 0xf4933d7eu,
0x0d95748fu, 0x728eb658u, 0x718bcd58u, 0x82154aeeu,
0x7b54a41du, 0xc25a59b5u, 0x9c30d539u, 0x2af26013u,
0xc5d1b023u, 0x286085f0u, 0xca417918u, 0xb8db38efu,
0x8e79dcb0u, 0x603a180eu, 0x6c9e0e8bu, 0xb01e8a3eu,
0xd71577c1u, 0xbd314b27u, 0x78af2fdau, 0x55605c60u,
0xe65525f3u, 0xaa55ab94u, 0x57489862u, 0x63e81440u,
0x55ca396au, 0x2aab10b6u, 0xb4cc5c34u, 0x1141e8ceu,
0xa15486afu, 0x7c72e993u, 0xb3ee1411u, 0x636fbc2au,
0x2ba9c55du, 0x741831f6u, 0xce5c3e16u, 0x9b87931eu,
0xafd6ba33u, 0x6c24cf5cu, 0x7a325381u, 0x28958677u,
0x3b8f4898u, 0x6b4bb9afu, 0xc4bfe81bu, 0x66282193u,
0x61d809ccu, 0xfb21a991u, 0x487cac60u, 0x5dec8032u,
0xef845d5du, 0xe98575b1u, 0xdc262302u, 0xeb651b88u,
0x23893e81u, 0xd396acc5u, 0x0f6d6ff3u, 0x83f44239u,
0x2e0b4482u, 0xa4842004u, 0x69c8f04au, 0x9e1f9b5eu,
0x21c66842u, 0xf6e96c9au, 0x670c9c61u, 0xabd388f0u,
0x6a51a0d2u, 0xd8542f68u, 0x960fa728u, 0xab5133a3u,
0x6eef0b6cu, 0x137a3be4u, 0xba3bf050u, 0x7efb2a98u,
0xa1f1651du, 0x39af0176u, 0x66ca593eu, 0x82430e88u,
0x8cee8619u, 0x456f9fb4u, 0x7d84a5c3u, 0x3b8b5ebeu,
0xe06f75d8u, 0x85c12073u, 0x401a449fu, 0x56c16aa6u,
0x4ed3aa62u, 0x363f7706u, 0x1bfedf72u, 0x429b023du,
0x37d0d724u, 0xd00a1248u, 0xdb0fead3u, 0x49f1c09bu,
0x075372c9u, 0x80991b7bu, 0x25d479d8u, 0xf6e8def7u,
0xe3fe501au, 0xb6794c3bu, 0x976ce0bdu, 0x04c006bau,
0xc1a94fb6u, 0x409f60c4u, 0x5e5c9ec2u, 0x196a2463u,
0x68fb6fafu, 0x3e6c53b5u, 0x1339b2ebu, 0x3b52ec6fu,
0x6dfc511fu, 0x9b30952cu, 0xcc814544u, 0xaf5ebd09u,
0xbee3d004u, 0xde334afdu, 0x660f2807u, 0x192e4bb3u,
0xc0cba857u, 0x45c8740fu, 0xd20b5f39u, 0xb9d3fbdbu,
0x5579c0bdu, 0x1a60320au, 0xd6a100c6u, 0x402c7279u,
0x679f25feu, 0xfb1fa3ccu, 0x8ea5e9f8u, 0xdb3222f8u,
0x3c7516dfu, 0xfd616b15u, 0x2f501ec8u, 0xad0552abu,
0x323db5fau, 0xfd238760u, 0x53317b48u, 0x3e00df82u,
0x9e5c57bbu, 0xca6f8ca0u, 0x1a87562eu, 0xdf1769dbu,
0xd542a8f6u, 0x287effc3u, 0xac6732c6u, 0x8c4f5573u,
0x695b27b0u, 0xbbca58c8u, 0xe1ffa35du, 0xb8f011a0u,
0x10fa3d98u, 0xfd2183b8u, 0x4afcb56cu, 0x2dd1d35bu,
0x9a53e479u, 0xb6f84565u, 0xd28e49bcu, 0x4bfb9790u,
0xe1ddf2dau, 0xa4cb7e33u, 0x62fb1341u, 0xcee4c6e8u,
0xef20cadau, 0x36774c01u, 0xd07e9efeu, 0x2bf11fb4u,
0x95dbda4du, 0xae909198u, 0xeaad8e71u, 0x6b93d5a0u,
0xd08ed1d0u, 0xafc725e0u, 0x8e3c5b2fu, 0x8e7594b7u,
0x8ff6e2fbu, 0xf2122b64u, 0x8888b812u, 0x900df01cu,
0x4fad5ea0u, 0x688fc31cu, 0xd1cff191u, 0xb3a8c1adu,
0x2f2f2218u, 0xbe0e1777u, 0xea752dfeu, 0x8b021fa1u,
0xe5a0cc0fu, 0xb56f74e8u, 0x18acf3d6u, 0xce89e299u,
0xb4a84fe0u, 0xfd13e0b7u, 0x7cc43b81u, 0xd2ada8d9u,
0x165fa266u, 0x80957705u, 0x93cc7314u, 0x211a1477u,
0xe6ad2065u, 0x77b5fa86u, 0xc75442f5u, 0xfb9d35cfu,
0xebcdaf0cu, 0x7b3e89a0u, 0xd6411bd3u, 0xae1e7e49u,
0x00250e2du, 0x2071b35eu, 0x226800bbu, 0x57b8e0afu,
0x2464369bu, 0xf009b91eu, 0x5563911du, 0x59dfa6aau,
0x78c14389u, 0xd95a537fu, 0x207d5ba2u, 0x02e5b9c5u,
0x83260376u, 0x6295cfa9u, 0x11c81968u, 0x4e734a41u,
0xb3472dcau, 0x7b14a94au, 0x1b510052u, 0x9a532915u,
0xd60f573fu, 0xbc9bc6e4u, 0x2b60a476u, 0x81e67400u,
0x08ba6fb5u, 0x571be91fu, 0xf296ec6bu, 0x2a0dd915u,
0xb6636521u, 0xe7b9f9b6u, 0xff34052eu, 0xc5855664u,
0x53b02d5du, 0xa99f8fa1u, 0x08ba4799u, 0x6e85076au},
{0x4b7a70e9u, 0xb5b32944u, 0xdb75092eu, 0xc4192623u,
0xad6ea6b0u, 0x49a7df7du, 0x9cee60b8u, 0x8fedb266u,
0xecaa8c71u, 0x699a17ffu, 0x5664526cu, 0xc2b19ee1u,
0x193602a5u, 0x75094c29u, 0xa0591340u, 0xe4183a3eu,
0x3f54989au, 0x5b429d65u, 0x6b8fe4d6u, 0x99f73fd6u,
0xa1d29c07u, 0xefe830f5u, 0x4d2d38e6u, 0xf0255dc1u,
0x4cdd2086u, 0x8470eb26u, 0x6382e9c6u, 0x021ecc5eu,
0x09686b3fu, 0x3ebaefc9u, 0x3c971814u, 0x6b6a70a1u,
0x687f3584u, 0x52a0e286u, 0xb79c5305u, 0xaa500737u,
0x3e07841cu, 0x7fdeae5cu, 0x8e7d44ecu, 0x5716f2b8u,
0xb03ada37u, 0xf0500c0du, 0xf01c1f04u, 0x0200b3ffu,
0xae0cf51au, 0x3cb574b2u, 0x25837a58u, 0xdc0921bdu,
0xd19113f9u, 0x7ca92ff6u, 0x94324773u, 0x22f54701u,
0x3ae5e581u, 0x37c2dadcu, 0xc8b57634u, 0x9af3dda7u,
0xa9446146u, 0x0fd0030eu, 0xecc8c73eu, 0xa4751e41u,
0xe238cd99u, 0x3bea0e2fu, 0x3280bba1u, 0x183eb331u,
0x4e548b38u, 0x4f6db908u, 0x6f420d03u, 0xf60a04bfu,
0x2cb81290u, 0x24977c79u, 0x5679b072u, 0xbcaf89afu,
0xde9a771fu, 0xd9930810u, 0xb38bae12u, 0xdccf3f2eu,
0x5512721fu, 0x2e6b7124u, 0x501adde6u, 0x9f84cd87u,
0x7a584718u, 0x7408da17u, 0xbc9f9abcu, 0xe94b7d8cu,
0xec7aec3au, 0xdb851dfau, 0x63094366u, 0xc464c3d2u,
0xef1c1847u, 0x3215d908u, 0xdd433b37u, 0x24c2ba16u,
0x12a14d43u, 0x2a65c451u, 0x50940002u, 0x133ae4ddu,
0x71dff89eu, 0x10314e55u, 0x81ac77d6u, 0x5f11199bu,
0x043556f1u, 0xd7a3c76bu, 0x3c11183bu, 0x5924a509u,
0xf28fe6edu, 0x97f1fbfau, 0x9ebabf2cu, 0x1e153c6eu,
0x86e34570u, 0xeae96fb1u, 0x860e5e0au, 0x5a3e2ab3u,
0x771fe71cu, 0x4e3d06fau, 0x2965dcb9u, 0x99e71d0fu,
0x803e89d6u, 0x5266c825u, 0x2e4cc978u, 0x9c10b36au,
0xc6150ebau, 0x94e2ea78u, 0xa5fc3c53u, 0x1e0a2df4u,
0xf2f74ea7u, 0x361d2b3du, 0x1939260fu, 0x19c27960u,
0x5223a708u, 0xf71312b6u, 0xebadfe6eu, 0xeac31f66u,
0xe3bc4595u, 0xa67bc883u, 0xb17f37d1u, 0x018cff28u,
0xc332ddefu, 0xbe6c5aa5u, 0x65582185u, 0x68ab9802u,
0xeecea50fu, 0xdb2f953bu, 0x2aef7dadu, 0x5b6e2f84u,
0x1521b628u, 0x29076170u, 0xecdd4775u, 0x619f1510u,
0x13cca830u, 0xeb61bd96u, 0x0334fe1eu, 0xaa0363cfu,
0xb5735c90u, 0x4c70a239u, 0xd59e9e0bu, 0xcbaade14u,
0xeecc86bcu, 0x60622ca7u, 0x9cab5cabu, 0xb2f3846eu,
0x648b1eafu, 0x19bdf0cau, 0xa02369b9u, 0x655abb50u,
0x40685a32u, 0x3c2ab4b3u, 0x319ee9d5u, 0xc021b8f7u,
0x9b540b19u, 0x875fa099u, 0x95f7997eu, 0x623d7da8u,
0xf837889au, 0x97e32d77u, 0x11ed935fu, 0x16681281u,
0x0e358829u, 0xc7e61fd6u, 0x96dedfa1u, 0x7858ba99u,
0x57f584a5u, 0x1b227263u, 0x9b83c3ffu, 0x1ac24696u,
0xcdb30aebu, 0x532e3054u, 0x8fd948e4u, 0x6dbc3128u,
0x58ebf2efu, 0x34c6ffeau, 0xfe28ed61u, 0xee7c3c73u,
0x5d4a14d9u, 0xe864b7e3u, 0x42105d14u, 0x203e13e0u,
0x45eee2b6u, 0xa3aaabeau, 0xdb6c4f15u, 0xfacb4fd0u,
0xc742f442u, 0xef6abbb5u, 0x654f3b1du, 0x41cd2105u,
0xd81e799eu, 0x86854dc7u, 0xe44b476au, 0x3d816250u,
0xcf62a1f2u, 0x5b8d2646u, 0xfc8883a0u, 0xc1c7b6a3u,
0x7f1524c3u, 0x69cb7492u, 0x47848a0bu, 0x5692b285u,
0x095bbf00u, 0xad19489du, 0x1462b174u, 0x23820e00u,
0x58428d2au, 0x0c55f5eau, 0x1dadf43eu, 0x233f7061u,
0x3372f092u, 0x8d937e41u, 0xd65fecf1u, 0x6c223bdbu,
0x7cde3759u, 0xcbee7460u, 0x4085f2a7u, 0xce77326eu,
0xa6078084u, 0x19f8509eu, 0xe8efd855u, 0x61d99735u,
0xa969a7aau, 0xc50c06c2u, 0x5a04abfcu, 0x800bcadcu,
0x9e447a2eu, 0xc3453484u, 0xfdd56705u, 0x0e1e9ec9u,
0xdb73dbd3u, 0x105588cdu, 0x675fda79u, 0xe3674340u,
0xc5c43465u, 0x713e38d8u, 0x3d28f89eu, 0xf16dff20u,
0x153e21e7u, 0x8fb03d4au, 0xe6e39f2bu, 0xdb83adf7u},
{0xe93d5a68u, 0x948140f7u, 0xf64c261cu, 0x94692934u,
0x411520f7u, 0x7602d4f7u, 0xbcf46b2eu, 0xd4a20068u,
0xd4082471u, 0x3320f46au, 0x43b7d4b7u, 0x500061afu,
0x1e39f62eu, 0x97244546u, 0x14214f74u, 0xbf8b8840u,
0x4d95fc1du, 0x96b591afu, 0x70f4ddd3u, 0x66a02f45u,
0xbfbc09ecu, 0x03bd9785u, 0x7fac6dd0u, 0x31cb8504u,
0x96eb27b3u, 0x55fd3941u, 0xda2547e6u, 0xabca0a9au,
0x28507825u, 0x530429f4u, 0x0a2c86dau, 0xe9b66dfbu,
0x68dc1462u, 0xd7486900u, 0x680ec0a4u, 0x27a18deeu,
0x4f3ffea2u, 0xe887ad8cu, 0xb58ce006u, 0x7af4d6b6u,
0xaace1e7cu, 0xd3375fecu, 0xce78a399u, 0x406b2a42u,
0x20fe9e35u, 0xd9f385b9u, 0xee39d7abu, 0x3b124e8bu,
0x1dc9faf7u, 0x4b6d1856u, 0x26a36631u, 0xeae397b2u,
0x3a6efa74u, 0xdd5b4332u, 0x6841e7f7u, 0xca7820fbu,
0xfb0af54eu, 0xd8feb397u, 0x454056acu, 0xba489527u,
0x55533a3au, 0x20838d87u, 0xfe6ba9b7u, 0xd096954bu,
0x55a867bcu, 0xa1159a58u, 0xcca92963u, 0x99e1db33u,
0xa62a4a56u, 0x3f3125f9u, 0x5ef47e1cu, 0x9029317cu,
0xfdf8e802u, 0x04272f70u, 0x80bb155cu, 0x05282ce3u,
0x95c11548u, 0xe4c66d22u, 0x48c1133fu, 0xc70f86dcu,
0x07f9c9eeu, 0x41041f0fu, 0x404779a4u, 0x5d886e17u,
0x325f51ebu, 0xd59bc0d1u, 0xf2bcc18fu, 0x41113564u,
0x257b7834u, 0x602a9c60u, 0xdff8e8a3u, 0x1f636c1bu,
0x0e12b4c2u, 0x02e1329eu, 0xaf664fd1u, 0xcad18115u,
0x6b2395e0u, 0x333e92e1u, 0x3b240b62u, 0xeebeb922u,
0x85b2a20eu, 0xe6ba0d99u, 0xde720c8cu, 0x2da2f728u,
0xd0127845u, 0x95b794fdu, 0x647d0862u, 0xe7ccf5f0u,
0x5449a36fu, 0x877d48fau, 0xc39dfd27u, 0xf33e8d1eu,
0x0a476341u, 0x992eff74u, 0x3a6f6eabu, 0xf4f8fd37u,
0xa812dc60u, 0xa1ebddf8u, 0x991be14cu, 0xdb6e6b0du,
0xc67b5510u, 0x6d672c37u, 0x2765d43bu, 0xdcd0e804u,
0xf1290dc7u, 0xcc00ffa3u, 0xb5390f92u, 0x690fed0bu,
0x667b9ffbu, 0xcedb7d9cu, 0xa091cf0bu, 0xd9155ea3u,
0xbb132f88u, 0x515bad24u, 0x7b9479bfu, 0x763bd6ebu,
0x37392eb3u, 0xcc115979u, 0x8026e297u, 0xf42e312du,
0x6842ada7u, 0xc66a2b3bu, 0x12754cccu, 0x782ef11cu,
0x6a124237u, 0xb79251e7u, 0x06a1bbe6u, 0x4bfb6350u,
0x1a6b1018u, 0x11caedfau, 0x3d25bdd8u, 0xe2e1c3c9u,
0x44421659u, 0x0a121386u, 0xd90cec6eu, 0xd5abea2au,
0x64af674eu, 0xda86a85fu, 0xbebfe988u, 0x64e4c3feu,
0x9dbc8057u, 0xf0f7c086u, 0x60787bf8u, 0x6003604du,
0xd1fd8346u, 0xf6381fb0u, 0x7745ae04u, 0xd736fcccu,
0x83426b33u, 0xf01eab71u, 0xb0804187u, 0x3c005e5fu,
0x77a057beu, 0xbde8ae24u, 0x55464299u, 0xbf582e61u,
0x4e58f48fu, 0xf2ddfda2u, 0xf474ef38u, 0x8789bdc2u,
0x5366f9c3u, 0xc8b38e74u, 0xb475f255u, 0x46fcd9b9u,
0x7aeb2661u, 0x8b1ddf84u, 0x846a0e79u, 0x915f95e2u,
0x466e598eu, 0x20b45770u, 0x8cd55591u, 0xc902de4cu,
0xb90bace1u, 0xbb8205d0u, 0x11a86248u, 0x7574a99eu,
0xb77f19b6u, 0xe0a9dc09u, 0x662d09a1u, 0xc4324633u,
0xe85a1f02u, 0x09f0be8cu, 0x4a99a025u, 0x1d6efe10u,
0x1ab93d1du, 0x0ba5a4dfu, 0xa186f20fu, 0x2868f169u,
0xdcb7da83u, 0x573906feu, 0xa1e2ce9bu, 0x4fcd7f52u,
0x50115e01u, 0xa70683fau, 0xa002b5c4u, 0x0de6d027u,
0x9af88c27u, 0x773f8641u, 0xc3604c06u, 0x61a806b5u,
0xf0177a28u, 0xc0f586e0u, 0x006058aau, 0x30dc7d62u,
0x11e69ed7u, 0x2338ea63u, 0x53c2dd94u, 0xc2c21634u,
0xbbcbee56u, 0x90bcb6deu, 0xebfc7da1u, 0xce591d76u,
0x6f05e409u, 0x4b7c0188u, 0x39720a3du, 0x7c927c24u,
0x86e3725fu, 0x724d9db9u, 0x1ac15bb4u, 0xd39eb8fcu,
0xed545578u, 0x08fca5b5u, 0xd83d7cd3u, 0x4dad0fc4u,
0x1e50ef5eu, 0xb161e6f8u, 0xa28514d9u, 0x6c51133cu,
0x6fd5c7e7u, 0x56e14ec4u, 0x362abfceu, 0xddc6c837u,
0xd79a3234u, 0x92638212u, 0x670efa8eu, 0x406000e0u},
{0x3a39ce37u, 0xd3faf5cfu, 0xabc27737u, 0x5ac52d1bu,
0x5cb0679eu, 0x4fa33742u, 0xd3822740u, 0x99bc9bbeu,
0xd5118e9du, 0xbf0f7315u, 0xd62d1c7eu, 0xc700c47bu,
0xb78c1b6bu, 0x21a19045u, 0xb26eb1beu, 0x6a366eb4u,
0x5748ab2fu, 0xbc946e79u, 0xc6a376d2u, 0x6549c2c8u,
0x530ff8eeu, 0x468dde7du, 0xd5730a1du, 0x4cd04dc6u,
0x2939bbdbu, 0xa9ba4650u, 0xac9526e8u, 0xbe5ee304u,
0xa1fad5f0u, 0x6a2d519au, 0x63ef8ce2u, 0x9a86ee22u,
0xc089c2b8u, 0x43242ef6u, 0xa51e03aau, 0x9cf2d0a4u,
0x83c061bau, 0x9be96a4du, 0x8fe51550u, 0xba645bd6u,
0x2826a2f9u, 0xa73a3ae1u, 0x4ba99586u, 0xef5562e9u,
0xc72fefd3u, 0xf752f7dau, 0x3f046f69u, 0x77fa0a59u,
0x80e4a915u, 0x87b08601u, 0x9b09e6adu, 0x3b3ee593u,
0xe990fd5au, 0x9e34d797u, 0x2cf0b7d9u, 0x022b8b51u,
0x96d5ac3au, 0x017da67du, 0xd1cf3ed6u, 0x7c7d2d28u,
0x1f9f25cfu, 0xadf2b89bu, 0x5ad6b472u, 0x5a88f54cu,
0xe029ac71u, 0xe019a5e6u, 0x47b0acfdu, 0xed93fa9bu,
0xe8d3c48du, 0x283b57ccu, 0xf8d56629u, 0x79132e28u,
0x785f0191u, 0xed756055u, 0xf7960e44u, 0xe3d35e8cu,
0x15056dd4u, 0x88f46dbau, 0x03a16125u, 0x0564f0bdu,
0xc3eb9e15u, 0x3c9057a2u, 0x97271aecu, 0xa93a072au,
0x1b3f6d9bu, 0x1e6321f5u, 0xf59c66fbu, 0x26dcf319u,
0x7533d928u, 0xb155fdf5u, 0x03563482u, 0x8aba3cbbu,
0x28517711u, 0xc20ad9f8u, 0xabcc5167u, 0xccad925fu,
0x4de81751u, 0x3830dc8eu, 0x379d5862u, 0x9320f991u,
0xea7a90c2u, 0xfb3e7bceu, 0x5121ce64u, 0x774fbe32u,
0xa8b6e37eu, 0xc3293d46u, 0x48de5369u, 0x6413e680u,
0xa2ae0810u, 0xdd6db224u, 0x69852dfdu, 0x09072166u,
0xb39a460au, 0x6445c0ddu, 0x586cdecfu, 0x1c20c8aeu,
0x5bbef7ddu, 0x1b588d40u, 0xccd2017fu, 0x6bb4e3bbu,
0xdda26a7eu, 0x3a59ff45u, 0x3e350a44u, 0xbcb4cdd5u,
0x72eacea8u, 0xfa6484bbu, 0x8d6612aeu, 0xbf3c6f47u,
0xd29be463u, 0x542f5d9eu, 0xaec2771bu, 0xf64e6370u,
0x740e0d8du, 0xe75b1357u, 0xf8721671u, 0xaf537d5du,
0x4040cb08u, 0x4eb4e2ccu, 0x34d2466au, 0x0115af84u,
0xe1b00428u, 0x95983a1du, 0x06b89fb4u, 0xce6ea048u,
0x6f3f3b82u, 0x3520ab82u, 0x011a1d4bu, 0x277227f8u,
0x611560b1u, 0xe7933fdcu, 0xbb3a792bu, 0x344525bdu,
0xa08839e1u, 0x51ce794bu, 0x2f32c9b7u, 0xa01fbac9u,
0xe01cc87eu, 0xbcc7d1f6u, 0xcf0111c3u, 0xa1e8aac7u,
0x1a908749u, 0xd44fbd9au, 0xd0dadecbu, 0xd50ada38u,
0x0339c32au, 0xc6913667u, 0x8df9317cu, 0xe0b12b4fu,
0xf79e59b7u, 0x43f5bb3au, 0xf2d519ffu, 0x27d9459cu,
0xbf97222cu, 0x15e6fc2au, 0x0f91fc71u, 0x9b941525u,
0xfae59361u, 0xceb69cebu, 0xc2a86459u, 0x12baa8d1u,
0xb6c1075eu, 0xe3056a0cu, 0x10d25065u, 0xcb03a442u,
0xe0ec6e0eu, 0x1698db3bu, 0x4c98a0beu, 0x3278e964u,
0x9f1f9532u, 0xe0d392dfu, 0xd3a0342bu, 0x8971f21eu,
0x1b0a7441u, 0x4ba3348cu, 0xc5be7120u, 0xc37632d8u,
0xdf359f8du, 0x9b992f2eu, 0xe60b6f47u, 0x0fe3f11du,
0xe54cda54u, 0x1edad891u, 0xce6279cfu, 0xcd3e7e6fu,
0x1618b166u, 0xfd2c1d05u, 0x848fd2c5u, 0xf6fb2299u,
0xf523f357u, 0xa6327623u, 0x93a83531u, 0x56cccd02u,
0xacf08162u, 0x5a75ebb5u, 0x6e163697u, 0x88d273ccu,
0xde966292u, 0x81b949d0u, 0x4c50901bu, 0x71c65614u,
0xe6c6c7bdu, 0x327a140au, 0x45e1d006u, 0xc3f27b9au,
0xc9aa53fdu, 0x62a80f00u, 0xbb25bfe2u, 0x35bdd2f6u,
0x71126905u, 0xb2040222u, 0xb6cbcf7cu, 0xcd769c2bu,
0x53113ec0u, 0x1640e3d3u, 0x38abbd60u, 0x2547adf0u,
0xba38209cu, 0xf746ce76u, 0x77afa1c5u, 0x20756060u,
0x85cbfe4eu, 0x8ae88dd8u, 0x7aaaf9b0u, 0x4cf9aa7eu,
0x1948c25cu, 0x02fb8a8cu, 0x01c36ae4u, 0xd6ebe1f9u,
0x90d4f869u, 0xa65cdea0u, 0x3f09252du, 0xc208e69fu,
0xb74e6132u, 0xce77e25bu, 0x578fdfe3u, 0x3ac372e6u
}
};
#define F1(i) \
xl ^= pax[i]; \
xr ^= ((sbx[0][xl >> 24] + \
sbx[1][(xl & 0xFF0000) >> 16]) ^ \
sbx[2][(xl & 0xFF00) >> 8]) + \
sbx[3][xl & 0xFF];
#define F2(i) \
xr ^= pax[i]; \
xl ^= ((sbx[0][xr >> 24] + \
sbx[1][(xr & 0xFF0000) >> 16]) ^ \
sbx[2][(xr & 0xFF00) >> 8]) + \
sbx[3][xr & 0xFF];
static void
bf_e_block(p_xl, p_xr)
UINT32_T *p_xl;
UINT32_T *p_xr;
{
UINT32_T temp, xl = *p_xl, xr = *p_xr;
F1(0) F2(1) F1(2) F2(3) F1(4) F2(5) F1(6) F2(7)
F1(8) F2(9) F1(10) F2(11) F1(12) F2(13) F1(14) F2(15)
xl ^= pax[16];
xr ^= pax[17];
temp = xl;
xl = xr;
xr = temp;
*p_xl = xl;
*p_xr = xr;
}
#if 0 /* not used */
static void
bf_d_block(p_xl, p_xr)
UINT32_T *p_xl;
UINT32_T *p_xr;
{
UINT32_T temp, xl = *p_xl, xr = *p_xr;
F1(17) F2(16) F1(15) F2(14) F1(13) F2(12) F1(11) F2(10)
F1(9) F2(8) F1(7) F2(6) F1(5) F2(4) F1(3) F2(2)
xl ^= pax[1];
xr ^= pax[0];
temp = xl; xl = xr; xr = temp;
*p_xl = xl; *p_xr = xr;
}
#endif
#ifdef WORDS_BIGENDIAN
# define htonl2(x) \
x = ((((x) & 0xffL) << 24) | (((x) & 0xff00L) << 8) | \
(((x) & 0xff0000L) >> 8) | (((x) & 0xff000000L) >> 24))
#else
# define htonl2(x)
#endif
static void
bf_e_cblock(block)
char_u *block;
{
block8 bk;
memcpy(bk.uc, block, 8);
htonl2(bk.ul[0]);
htonl2(bk.ul[1]);
bf_e_block(&bk.ul[0], &bk.ul[1]);
htonl2(bk.ul[0]);
htonl2(bk.ul[1]);
memcpy(block, bk.uc, 8);
}
#if 0 /* not used */
void
bf_d_cblock(block)
char_u *block;
{
block8 bk;
memcpy(bk.uc, block, 8);
htonl2(bk.ul[0]); htonl2(bk.ul[1]);
bf_d_block(&bk.ul[0], &bk.ul[1]);
htonl2(bk.ul[0]); htonl2(bk.ul[1]);
memcpy(block, bk.uc, 8);
}
#endif
/*
* Initialize the crypt method using "password" as the encryption key and
* "salt[salt_len]" as the salt.
*/
void
bf_key_init(password, salt, salt_len)
char_u *password;
char_u *salt;
int salt_len;
{
int i, j, keypos = 0;
unsigned u;
UINT32_T val, data_l, data_r;
char_u *key;
int keylen;
/* Process the key 1000 times.
* See http://en.wikipedia.org/wiki/Key_strengthening. */
key = sha256_key(password, salt, salt_len);
for (i = 0; i < 1000; i++)
key = sha256_key(key, salt, salt_len);
/* Convert the key from 64 hex chars to 32 binary chars. */
keylen = (int)STRLEN(key) / 2;
if (keylen == 0)
{
EMSG(_("E831: bf_key_init() called with empty password"));
return;
}
for (i = 0; i < keylen; i++)
{
sscanf((char *)&key[i * 2], "%2x", &u);
key[i] = u;
}
mch_memmove(sbx, sbi, 4 * 4 * 256);
for (i = 0; i < 18; ++i)
{
val = 0;
for (j = 0; j < 4; ++j)
val = (val << 8) | key[keypos++ % keylen];
pax[i] = ipa[i] ^ val;
}
data_l = data_r = 0;
for (i = 0; i < 18; i += 2)
{
bf_e_block(&data_l, &data_r);
pax[i + 0] = data_l;
pax[i + 1] = data_r;
}
for (i = 0; i < 4; ++i)
{
for (j = 0; j < 256; j += 2)
{
bf_e_block(&data_l, &data_r);
sbx[i][j + 0] = data_l;
sbx[i][j + 1] = data_r;
}
}
}
/*
* BF Self test for corrupted tables or instructions
*/
static int
bf_check_tables(a_ipa, a_sbi, val)
UINT32_T a_ipa[18];
UINT32_T a_sbi[4][256];
UINT32_T val;
{
int i, j;
UINT32_T c = 0;
for (i = 0; i < 18; i++)
c ^= a_ipa[i];
for (i = 0; i < 4; i++)
for (j = 0; j < 256; j++)
c ^= a_sbi[i][j];
return c == val;
}
typedef struct {
char_u password[64];
char_u salt[9];
char_u plaintxt[9];
char_u cryptxt[9];
char_u badcryptxt[9]; /* cryptxt when big/little endian is wrong */
UINT32_T keysum;
} struct_bf_test_data;
/*
* Assert bf(password, plaintxt) is cryptxt.
* Assert csum(pax sbx(password)) is keysum.
*/
static struct_bf_test_data bf_test_data[] = {
{
"password",
"salt",
"plaintxt",
"\xad\x3d\xfa\x7f\xe8\xea\x40\xf6", /* cryptxt */
"\x72\x50\x3b\x38\x10\x60\x22\xa7", /* badcryptxt */
0x56701b5du /* keysum */
},
};
/*
* Return FAIL when there is something wrong with blowfish encryption.
*/
static int
bf_self_test()
{
int i, bn;
int err = 0;
block8 bk;
UINT32_T ui = 0xffffffffUL;
/* We can't simply use sizeof(UINT32_T), it would generate a compiler
* warning. */
if (ui != 0xffffffffUL || ui + 1 != 0) {
err++;
EMSG(_("E820: sizeof(uint32_t) != 4"));
}
if (!bf_check_tables(ipa, sbi, 0x6ffa520a))
err++;
bn = ARRAY_LENGTH(bf_test_data);
for (i = 0; i < bn; i++)
{
bf_key_init((char_u *)(bf_test_data[i].password),
bf_test_data[i].salt,
(int)STRLEN(bf_test_data[i].salt));
if (!bf_check_tables(pax, sbx, bf_test_data[i].keysum))
err++;
/* Don't modify bf_test_data[i].plaintxt, self test is idempotent. */
memcpy(bk.uc, bf_test_data[i].plaintxt, 8);
bf_e_cblock(bk.uc);
if (memcmp(bk.uc, bf_test_data[i].cryptxt, 8) != 0)
{
if (err == 0 && memcmp(bk.uc, bf_test_data[i].badcryptxt, 8) == 0)
EMSG(_("E817: Blowfish big/little endian use wrong"));
err++;
}
}
return err > 0 ? FAIL : OK;
}
/* Output feedback mode. */
static int randbyte_offset = 0;
static int update_offset = 0;
static char_u ofb_buffer[BF_OFB_LEN]; /* 64 bytes */
/*
* Initialize with seed "iv[iv_len]".
*/
void
bf_ofb_init(iv, iv_len)
char_u *iv;
int iv_len;
{
int i, mi;
randbyte_offset = update_offset = 0;
vim_memset(ofb_buffer, 0, BF_OFB_LEN);
if (iv_len > 0)
{
mi = iv_len > BF_OFB_LEN ? iv_len : BF_OFB_LEN;
for (i = 0; i < mi; i++)
ofb_buffer[i % BF_OFB_LEN] ^= iv[i % iv_len];
}
}
#define BF_OFB_UPDATE(c) { \
ofb_buffer[update_offset] ^= (char_u)c; \
if (++update_offset == BF_OFB_LEN) \
update_offset = 0; \
}
#define BF_RANBYTE(t) { \
if ((randbyte_offset & BF_BLOCK_MASK) == 0) \
bf_e_cblock(&ofb_buffer[randbyte_offset]); \
t = ofb_buffer[randbyte_offset]; \
if (++randbyte_offset == BF_OFB_LEN) \
randbyte_offset = 0; \
}
/*
* Encrypt "from[len]" into "to[len]".
* "from" and "to" can be equal to encrypt in place.
*/
void
bf_crypt_encode(from, len, to)
char_u *from;
size_t len;
char_u *to;
{
size_t i;
int ztemp, t;
for (i = 0; i < len; ++i)
{
ztemp = from[i];
BF_RANBYTE(t);
BF_OFB_UPDATE(ztemp);
to[i] = t ^ ztemp;
}
}
/*
* Decrypt "ptr[len]" in place.
*/
void
bf_crypt_decode(ptr, len)
char_u *ptr;
long len;
{
char_u *p;
int t;
for (p = ptr; p < ptr + len; ++p)
{
BF_RANBYTE(t);
*p ^= t;
BF_OFB_UPDATE(*p);
}
}
/*
* Initialize the encryption keys and the random header according to
* the given password.
*/
void
bf_crypt_init_keys(passwd)
char_u *passwd; /* password string with which to modify keys */
{
char_u *p;
for (p = passwd; *p != NUL; ++p)
{
BF_OFB_UPDATE(*p);
}
}
static int save_randbyte_offset;
static int save_update_offset;
static char_u save_ofb_buffer[BF_OFB_LEN];
static UINT32_T save_pax[18];
static UINT32_T save_sbx[4][256];
/*
* Save the current crypt state. Can only be used once before
* bf_crypt_restore().
*/
void
bf_crypt_save()
{
save_randbyte_offset = randbyte_offset;
save_update_offset = update_offset;
mch_memmove(save_ofb_buffer, ofb_buffer, BF_OFB_LEN);
mch_memmove(save_pax, pax, 4 * 18);
mch_memmove(save_sbx, sbx, 4 * 4 * 256);
}
/*
* Restore the current crypt state. Can only be used after
* bf_crypt_save().
*/
void
bf_crypt_restore()
{
randbyte_offset = save_randbyte_offset;
update_offset = save_update_offset;
mch_memmove(ofb_buffer, save_ofb_buffer, BF_OFB_LEN);
mch_memmove(pax, save_pax, 4 * 18);
mch_memmove(sbx, save_sbx, 4 * 4 * 256);
}
/*
* Run a test to check if the encryption works as expected.
* Give an error and return FAIL when not.
*/
int
blowfish_self_test()
{
if (sha256_self_test() == FAIL)
{
EMSG(_("E818: sha256 test failed"));
return FAIL;
}
if (bf_self_test() == FAIL)
{
EMSG(_("E819: Blowfish test failed"));
return FAIL;
}
return OK;
}
#endif /* FEAT_CRYPT */