Cracking this algorithm.

**AxessTerminated** · September 12th, 2004, 04:23 PM

Cracked Beeotch! Okay, I got the password, and decrypted it with his prog. He used 72417 as the seed. Is there anyway that this information would help me with gaining some sort of patterns with this? I'm aware, as slarty mentioned, that this is somewhat specific to my implementation of rand() (it's GNU, for the record). But since he uses the same compiler I do (Dev-C++), then it shouldn't be a problem. I don't mean to be a bother, but I've always enjoyed cryptography, even in it's simplest forms...so I need to learn a bit more about it. This is the furthest I've made it in the field thus far, so what I do from now on is relatively new. The most of done before is using switch() statements, turning our alphabet in to Al Bhed's alphabet. (Al Bhed is a language in one of those Final Fantasy things), but they just had a rearranged alphabet.

A_T

***Tim_axe*** · September 12th, 2004, 09:14 PM

Good job on it!

slarty is right and my guess was wrong -- even if the first number is the same with some seeds, the next couple of numbers will be different...

Code:

#include &lt;stdlib.h&gt;

int main ( void )
{
    long key1 = 0;
    
    srand(key1);
    
    while (printf("When seed is -- %6i, output is -- %6i --", key1, rand()))
    {
        printf(" %6i --", rand());
        printf(" %6i --", rand());
        printf(" %6i --", rand());
        printf(" %6i\n", rand());
        srand(key1++);
    }
    
    getch();
    return 0;
}

Run for about 15 seconds...

D:\My Projects\AntiOnline\261497>main > output2.txt
^C
D:\My Projects\AntiOnline\261497>egrep "\-\-[ ][ ][ ][ ][ ]50" output2.txt
When seed is -- 50, output is -- 198 -- 10103 -- 11846 -- 1891 -- 22749
When seed is -- 1668, output is -- 5482 -- 1217 -- 14700 -- 7949 -- 50
When seed is -- 10039, output is -- 50 -- 27966 -- 2527 -- 17052 -- 32441
When seed is -- 10826, output is -- 2620 -- 50 -- 4158 -- 14976 -- 23547
When seed is -- 11686, output is -- 5428 -- 3104 -- 31921 -- 50 -- 13953
When seed is -- 18970, output is -- 29215 -- 11744 -- 50 -- 1195 -- 8289
When seed is -- 36820, output is -- 21969 -- 14158 -- 10103 -- 8401 -- 50
When seed is -- 40142, output is -- 50 -- 3244 -- 12033 -- 25577 -- 22506
When seed is -- 51004, output is -- 2752 -- 50 -- 567 -- 10955 -- 25622
When seed is -- 53306, output is -- 10270 -- 3042 -- 50 -- 26783 -- 12972
When seed is -- 71972, output is -- 5689 -- 27099 -- 5506 -- 8854 -- 50
When seed is -- 87321, output is -- 23044 -- 17509 -- 50 -- 28528 -- 16245
When seed is -- 90314, output is -- 50 -- 9313 -- 22907 -- 25962 -- 20310
When seed is -- 91182, output is -- 2885 -- 50 -- 29744 -- 6934 -- 27697
When seed is -- 107124, output is -- 22177 -- 7272 -- 909 -- 9306 -- 50
When seed is -- 120417, output is -- 50 -- 17359 -- 32413 -- 1719 -- 10376
When seed is -- 121336, output is -- 3051 -- 31976 -- 50 -- 30273 -- 19518
When seed is -- 122849, output is -- 7992 -- 8619 -- 27710 -- 50 -- 27901
When seed is -- 131360, output is -- 3017 -- 50 -- 26153 -- 2914 -- 29772
When seed is -- 132927, output is -- 8135 -- 50 -- 2670 -- 26926 -- 5318
When seed is -- 142247, output is -- 5802 -- 3422 -- 2540 -- 50 -- 28607
When seed is -- 142276, output is -- 5896 -- 20214 -- 29081 -- 9758 -- 50
When seed is -- 150520, output is -- 50 -- 25404 -- 9150 -- 10245 -- 441
When seed is -- 155672, output is -- 16874 -- 23274 -- 50 -- 23093 -- 24201
When seed is -- 161645, output is -- 3611 -- 30993 -- 10138 -- 50 -- 29314
When seed is -- 171538, output is -- 3150 -- 50 -- 22562 -- 31661 -- 31847
When seed is -- 173105, output is -- 8267 -- 50 -- 31847 -- 22906 -- 7393
When seed is -- 177428, output is -- 22384 -- 387 -- 24484 -- 10211 -- 50
When seed is -- 180623, output is -- 50 -- 682 -- 18656 -- 18770 -- 23275
When seed is -- 181043, output is -- 1421 -- 25796 -- 17736 -- 50 -- 30020
When seed is -- 189687, output is -- 29649 -- 4973 -- 50 -- 24838 -- 27474
When seed is -- 200441, output is -- 31999 -- 20599 -- 25334 -- 50 -- 30727
When seed is -- 200692, output is -- 50 -- 31473 -- 20025 -- 10630 -- 31013
When seed is -- 212580, output is -- 6104 -- 13328 -- 19887 -- 10663 -- 50
When seed is -- 213283, output is -- 8399 -- 50 -- 28256 -- 18885 -- 9468
When seed is -- 219839, output is -- 29809 -- 15402 -- 164 -- 50 -- 31434
When seed is -- 223702, output is -- 9655 -- 19440 -- 50 -- 26583 -- 30746
When seed is -- 230795, output is -- 50 -- 6751 -- 29530 -- 19155 -- 21079
When seed is -- 239237, output is -- 27618 -- 10206 -- 7762 -- 50 -- 32140
When seed is -- 247732, output is -- 22591 -- 26270 -- 15291 -- 11116 -- 50
When seed is -- 253461, output is -- 8532 -- 50 -- 24665 -- 14864 -- 11543
When seed is -- 258038, output is -- 23478 -- 10738 -- 50 -- 19403 -- 2662
When seed is -- 260898, output is -- 50 -- 14796 -- 6268 -- 27680 -- 11145
When seed is -- 282884, output is -- 6311 -- 6443 -- 10694 -- 11568 -- 50
When seed is -- 291001, output is -- 50 -- 22842 -- 15774 -- 3438 -- 1210
When seed is -- 292053, output is -- 3485 -- 25205 -- 50 -- 21148 -- 5934
When seed is -- 293639, output is -- 8664 -- 50 -- 21074 -- 10843 -- 13617
When seed is -- 318036, output is -- 22799 -- 19384 -- 6097 -- 12021 -- 50
When seed is -- 326068, output is -- 16260 -- 6905 -- 50 -- 22893 -- 9207
When seed is -- 330861, output is -- 31912 -- 12720 -- 240 -- 14995 -- 50
When seed is -- 333817, output is -- 8797 -- 50 -- 17483 -- 6823 -- 15692
When seed is -- 335384, output is -- 13914 -- 50 -- 26768 -- 30835 -- 24007
When seed is -- 341173, output is -- 50 -- 28911 -- 26648 -- 3823 -- 31782
When seed is -- 350400, output is -- 30182 -- 15721 -- 3550 -- 50 -- 13320
When seed is -- 360404, output is -- 30083 -- 30970 -- 50 -- 15713 -- 13890
When seed is -- 366013, output is -- 15631 -- 25662 -- 28411 -- 15448 -- 50
When seed is -- 369798, output is -- 27992 -- 10524 -- 11148 -- 50 -- 14027
When seed is -- 371276, output is -- 50 -- 4189 -- 3386 -- 12348 -- 21848
When seed is -- 375562, output is -- 14046 -- 50 -- 23177 -- 26815 -- 26081
When seed is -- 389196, output is -- 25801 -- 5327 -- 18746 -- 50 -- 14733
When seed is -- 394419, output is -- 10089 -- 12670 -- 50 -- 17458 -- 17163
When seed is -- 401165, output is -- 32119 -- 5835 -- 23815 -- 15900 -- 50
When seed is -- 401379, output is -- 50 -- 12234 -- 12891 -- 20873 -- 11913
When seed is -- 408594, output is -- 23611 -- 130 -- 26344 -- 50 -- 15440
When seed is -- 415740, output is -- 14179 -- 50 -- 19586 -- 22794 -- 28156
When seed is -- 427992, output is -- 21421 -- 27701 -- 1174 -- 50 -- 16146
When seed is -- 428434, output is -- 22864 -- 27137 -- 50 -- 19202 -- 20436
When seed is -- 431482, output is -- 50 -- 20279 -- 22397 -- 29399 -- 1979
When seed is -- 436317, output is -- 15839 -- 18776 -- 19218 -- 16353 -- 50
When seed is -- 447390, output is -- 19230 -- 22504 -- 8773 -- 50 -- 16853
When seed is -- 451551, output is -- 50 -- 18303 -- 23766 -- 21258 -- 9717
When seed is -- 455918, output is -- 14311 -- 50 -- 15995 -- 18773 -- 30231
When seed is -- 462770, output is -- 3919 -- 18435 -- 50 -- 12023 -- 25119
When seed is -- 471469, output is -- 32326 -- 31718 -- 14621 -- 16805 -- 50
When seed is -- 481654, output is -- 50 -- 26349 -- 504 -- 29783 -- 32551
When seed is -- 496096, output is -- 14444 -- 50 -- 12404 -- 14752 -- 32306
When seed is -- 496785, output is -- 16694 -- 134 -- 50 -- 13768 -- 28392
When seed is -- 506621, output is -- 16046 -- 11891 -- 10024 -- 17258 -- 50
When seed is -- 511757, output is -- 50 -- 1626 -- 10009 -- 5541 -- 22616
When seed is -- 530800, output is -- 29468 -- 14601 -- 50 -- 15512 -- 31665
When seed is -- 536274, output is -- 14576 -- 50 -- 8813 -- 10732 -- 1613
When seed is -- 537841, output is -- 19693 -- 50 -- 18098 -- 1976 -- 9927
When seed is -- 541773, output is -- 32534 -- 24832 -- 5428 -- 17710 -- 50
When seed is -- 541860, output is -- 50 -- 9672 -- 19515 -- 14066 -- 12682
When seed is -- 558553, output is -- 21794 -- 28020 -- 4561 -- 50 -- 30801
When seed is -- 565136, output is -- 10523 -- 5899 -- 50 -- 8333 -- 3580
When seed is -- 576925, output is -- 16253 -- 5006 -- 831 -- 18162 -- 50
When seed is -- 577951, output is -- 19604 -- 22823 -- 12159 -- 50 -- 31507
When seed is -- 578019, output is -- 19826 -- 50 -- 14507 -- 30724 -- 12002
When seed is -- 592032, output is -- 50 -- 15741 -- 30389 -- 14451 -- 10486
When seed is -- 597349, output is -- 17413 -- 17626 -- 19757 -- 50 -- 32214
When seed is -- 599151, output is -- 23298 -- 20366 -- 50 -- 10078 -- 6853
When seed is -- 612077, output is -- 32741 -- 17947 -- 29002 -- 18615 -- 50
When seed is -- 616747, output is -- 15223 -- 12429 -- 27355 -- 50 -- 152
When seed is -- 618197, output is -- 19958 -- 50 -- 10916 -- 26703 -- 14077
When seed is -- 622135, output is -- 50 -- 23786 -- 7127 -- 22976 -- 551
When seed is -- 633166, output is -- 3305 -- 2065 -- 50 -- 11822 -- 10126
When seed is -- 636145, output is -- 13033 -- 7232 -- 2185 -- 50 -- 859
When seed is -- 647229, output is -- 16460 -- 30888 -- 24406 -- 19067 -- 50
When seed is -- 652238, output is -- 50 -- 31832 -- 16632 -- 31502 -- 23385
When seed is -- 655543, output is -- 10842 -- 2035 -- 9783 -- 50 -- 1565
When seed is -- 658375, output is -- 20091 -- 50 -- 7325 -- 22682 -- 16152
When seed is -- 667502, output is -- 17128 -- 26131 -- 50 -- 4643 -- 14809
When seed is -- 674941, output is -- 8652 -- 29606 -- 17381 -- 50 -- 2272
When seed is -- 682381, output is -- 180 -- 11062 -- 19809 -- 19520 -- 50
When seed is -- 695206, output is -- 9293 -- 4398 -- 13952 -- 22494 -- 50
When seed is -- 698553, output is -- 20223 -- 50 -- 3734 -- 18662 -- 18227
When seed is -- 701517, output is -- 29902 -- 7830 -- 50 -- 6387 -- 18082
When seed is -- 702410, output is -- 50 -- 5133 -- 27507 -- 31887 -- 21189
When seed is -- 730358, output is -- 25781 -- 17339 -- 9355 -- 22947 -- 50
When seed is -- 732513, output is -- 50 -- 13179 -- 4245 -- 7644 -- 11254
When seed is -- 735532, output is -- 9909 -- 22298 -- 50 -- 8132 -- 21354
When seed is -- 738731, output is -- 20355 -- 50 -- 143 -- 14641 -- 20302
When seed is -- 740298, output is -- 25473 -- 50 -- 9427 -- 5885 -- 28616
When seed is -- 762616, output is -- 50 -- 21224 -- 13750 -- 16169 -- 1320
When seed is -- 765510, output is -- 9500 -- 30280 -- 4758 -- 23399 -- 50
When seed is -- 769868, output is -- 23732 -- 13595 -- 50 -- 953 -- 26038
When seed is -- 780476, output is -- 25605 -- 50 -- 5836 -- 1865 -- 30691
When seed is -- 786104, output is -- 11216 -- 2353 -- 13169 -- 50 -- 16220
When seed is -- 792719, output is -- 50 -- 29270 -- 23256 -- 24695 -- 24154
When seed is -- 800662, output is -- 25988 -- 10454 -- 162 -- 23852 -- 50
When seed is -- 803883, output is -- 3738 -- 28063 -- 50 -- 2697 -- 29310
When seed is -- 805502, output is -- 9025 -- 29924 -- 20767 -- 50 -- 16926
When seed is -- 812788, output is -- 50 -- 27293 -- 24625 -- 16554 -- 31892
When seed is -- 820654, output is -- 25738 -- 50 -- 2245 -- 30612 -- 32766
When seed is -- 824900, output is -- 6835 -- 24728 -- 28366 -- 50 -- 17633
When seed is -- 835814, output is -- 9708 -- 23395 -- 28333 -- 24304 -- 50
When seed is -- 837898, output is -- 16513 -- 9762 -- 50 -- 4442 -- 32583
When seed is -- 842891, output is -- 50 -- 2571 -- 1362 -- 25080 -- 21957
When seed is -- 844298, output is -- 4645 -- 19531 -- 3196 -- 50 -- 18339
When seed is -- 860832, output is -- 25870 -- 50 -- 31423 -- 26591 -- 2073
When seed is -- 863696, output is -- 2455 -- 14334 -- 10794 -- 50 -- 19046
When seed is -- 870966, output is -- 26195 -- 3568 -- 23736 -- 24757 -- 50
When seed is -- 872234, output is -- 30336 -- 1059 -- 50 -- 30030 -- 4498
When seed is -- 872994, output is -- 50 -- 10616 -- 10868 -- 837 -- 12023
When seed is -- 883094, output is -- 264 -- 9137 -- 18392 -- 50 -- 19753
When seed is -- 901010, output is -- 26002 -- 50 -- 27832 -- 22571 -- 4148
When seed is -- 902492, output is -- 30842 -- 3940 -- 25990 -- 50 -- 20459
When seed is -- 903097, output is -- 50 -- 18662 -- 20373 -- 9362 -- 2089
When seed is -- 906118, output is -- 9915 -- 16510 -- 19139 -- 25209 -- 50
When seed is -- 906249, output is -- 10343 -- 15527 -- 50 -- 31775 -- 7771
When seed is -- 940264, output is -- 23117 -- 29994 -- 50 -- 752 -- 11044
When seed is -- 941188, output is -- 26135 -- 50 -- 24241 -- 18550 -- 6223
When seed is -- 941270, output is -- 26403 -- 29451 -- 14543 -- 25662 -- 50
When seed is -- 942755, output is -- 31252 -- 50 -- 757 -- 9794 -- 14537
When seed is -- 953269, output is -- 50 -- 24731 -- 31248 -- 9747 -- 32660
When seed is -- 974279, output is -- 3124 -- 11693 -- 50 -- 2497 -- 14317
When seed is -- 974600, output is -- 4172 -- 21292 -- 50 -- 26340 -- 15727
When seed is -- 976422, output is -- 10122 -- 9624 -- 9946 -- 26114 -- 50
When seed is -- 982933, output is -- 31384 -- 50 -- 29934 -- 5774 -- 16612
When seed is -- 983372, output is -- 50 -- 9 -- 7986 -- 18272 -- 22726
When seed is -- 994257, output is -- 2828 -- 14652 -- 14180 -- 50 -- 932
When seed is -- 1008615, output is -- 16947 -- 2991 -- 50 -- 28085 -- 19000
When seed is -- 1011574, output is -- 26610 -- 22566 -- 5349 -- 26566 -- 50
When seed is -- 1013475, output is -- 50 -- 8054 -- 17491 -- 26798 -- 12792
When seed is -- 1013655, output is -- 638 -- 9455 -- 21778 -- 50 -- 1639
When seed is -- 1023111, output is -- 31517 -- 50 -- 26343 -- 1753 -- 18687
When seed is -- 1033053, output is -- 31215 -- 4258 -- 29376 -- 50 -- 2346
When seed is -- 1042630, output is -- 29722 -- 17458 -- 50 -- 29830 -- 22273
When seed is -- 1046726, output is -- 10330 -- 2739 -- 752 -- 27019 -- 50
When seed is -- 1052451, output is -- 29025 -- 31829 -- 4206 -- 50 -- 3052
When seed is -- 1059551, output is -- 19443 -- 28843 -- 27663 -- 29994 -- 50
When seed is -- 1063289, output is -- 31649 -- 50 -- 22752 -- 30500 -- 20762
When seed is -- 1063647, output is -- 50 -- 14123 -- 28366 -- 27183 -- 10595
When seed is -- 1071849, output is -- 26835 -- 26633 -- 11804 -- 50 -- 3759
When seed is -- 1076645, output is -- 9728 -- 31926 -- 50 -- 31575 -- 25546
When seed is -- 1076966, output is -- 10777 -- 8756 -- 50 -- 22650 -- 26956
When seed is -- 1091247, output is -- 24644 -- 21436 -- 19402 -- 50 -- 4465
When seed is -- 1093750, output is -- 50 -- 22169 -- 5103 -- 2940 -- 661
When seed is -- 1094703, output is -- 3162 -- 9016 -- 23067 -- 30446 -- 50
When seed is -- 1103467, output is -- 31782 -- 50 -- 19161 -- 26480 -- 22837
When seed is -- 1105034, output is -- 4131 -- 50 -- 28446 -- 17724 -- 31151
When seed is -- 1110645, output is -- 22454 -- 16239 -- 27000 -- 50 -- 5172
When seed is -- 1110981, output is -- 23551 -- 23223 -- 50 -- 24395 -- 30229
When seed is -- 1123853, output is -- 50 -- 30214 -- 14609 -- 11465 -- 23495
When seed is -- 1129855, output is -- 19650 -- 21957 -- 18470 -- 30898 -- 50
When seed is -- 1144996, output is -- 3558 -- 4923 -- 50 -- 26140 -- 734
When seed is -- 1145212, output is -- 4263 -- 50 -- 24855 -- 13704 -- 458
When seed is -- 1153956, output is -- 50 -- 5492 -- 24114 -- 19991 -- 13560
When seed is -- 1165007, output is -- 3370 -- 2131 -- 13873 -- 31351 -- 50
When seed is -- 1179011, output is -- 16333 -- 19390 -- 50 -- 27884 -- 4006
When seed is -- 1179332, output is -- 17381 -- 28988 -- 50 -- 18960 -- 5417
When seed is -- 1185390, output is -- 4396 -- 50 -- 21264 -- 9683 -- 2533
When seed is -- 1200159, output is -- 19857 -- 15072 -- 9277 -- 31803 -- 50
When seed is -- 1204128, output is -- 50 -- 11561 -- 2221 -- 20376 -- 11364
When seed is -- 1213347, output is -- 30156 -- 10687 -- 50 -- 20705 -- 8690
When seed is -- 1221808, output is -- 25018 -- 21754 -- 22789 -- 50 -- 19120
When seed is -- 1225568, output is -- 4528 -- 50 -- 17673 -- 5662 -- 4607
When seed is -- 1234231, output is -- 50 -- 19606 -- 11727 -- 28901 -- 1430
When seed is -- 1235311, output is -- 3577 -- 28013 -- 4680 -- 32256 -- 50
When seed is -- 1241206, output is -- 22827 -- 16557 -- 30387 -- 50 -- 19826
When seed is -- 1247362, output is -- 10162 -- 25155 -- 50 -- 22450 -- 11962
When seed is -- 1260604, output is -- 20637 -- 11360 -- 5217 -- 50 -- 20533
When seed is -- 1264334, output is -- 50 -- 27652 -- 21232 -- 4658 -- 24263
When seed is -- 1265746, output is -- 4661 -- 50 -- 14082 -- 1641 -- 6682
When seed is -- 1270463, output is -- 20064 -- 8187 -- 83 -- 32708 -- 50
When seed is -- 1280002, output is -- 18447 -- 6163 -- 12815 -- 50 -- 21239
When seed is -- 1281377, output is -- 22937 -- 6854 -- 50 -- 24194 -- 15235
When seed is -- 1299400, output is -- 16256 -- 966 -- 20413 -- 50 -- 21946
When seed is -- 1305615, output is -- 3784 -- 21128 -- 28254 -- 393 -- 50
When seed is -- 1305924, output is -- 4793 -- 50 -- 10491 -- 30389 -- 8757
When seed is -- 1307491, output is -- 9910 -- 50 -- 19776 -- 21633 -- 17071
When seed is -- 1314506, output is -- 50 -- 953 -- 32107 -- 5043 -- 22067
When seed is -- 1315713, output is -- 3992 -- 30920 -- 50 -- 17015 -- 19918
When seed is -- 1318798, output is -- 14066 -- 28537 -- 28011 -- 50 -- 22652
When seed is -- 1338196, output is -- 11876 -- 23341 -- 2841 -- 50 -- 23359
When seed is -- 1340767, output is -- 20272 -- 1301 -- 23658 -- 845 -- 50
When seed is -- 1344609, output is -- 50 -- 8999 -- 8844 -- 13569 -- 12133
When seed is -- 1347669, output is -- 10043 -- 50 -- 16185 -- 17613 -- 19146
When seed is -- 1349728, output is -- 16767 -- 12619 -- 50 -- 18760 -- 23191
When seed is -- 1374712, output is -- 50 -- 17044 -- 18350 -- 22094 -- 2198
When seed is -- 1375919, output is -- 3991 -- 14243 -- 19061 -- 1298 -- 50
When seed is -- 1383743, output is -- 29541 -- 27086 -- 50 -- 20504 -- 26464
When seed is -- 1387847, output is -- 10175 -- 50 -- 12594 -- 13592 -- 21221
When seed is -- 1404815, output is -- 50 -- 25090 -- 27855 -- 30619 -- 25032
When seed is -- 1411071, output is -- 20479 -- 27184 -- 14464 -- 1750 -- 50
When seed is -- 1418079, output is -- 10596 -- 18384 -- 50 -- 13325 -- 31147
When seed is -- 1423896, output is -- 29592 -- 20520 -- 8607 -- 4725 -- 50
When seed is -- 1424884, output is -- 50 -- 23113 -- 29225 -- 22479 -- 2
When seed is -- 1428025, output is -- 10308 -- 50 -- 9003 -- 9571 -- 23296
When seed is -- 1449359, output is -- 14439 -- 28856 -- 31397 -- 50 -- 4539
When seed is -- 1452094, output is -- 23371 -- 83 -- 50 -- 15069 -- 1652
When seed is -- 1454987, output is -- 50 -- 31159 -- 5962 -- 31004 -- 22836
When seed is -- 1459048, output is -- 13312 -- 693 -- 4010 -- 5177 -- 50
When seed is -- 1468203, output is -- 10440 -- 50 -- 5412 -- 5550 -- 25371
When seed is -- 1468757, output is -- 12249 -- 23659 -- 6227 -- 50 -- 5245
When seed is -- 1485090, output is -- 50 -- 6436 -- 15468 -- 6761 -- 12901
When seed is -- 1486109, output is -- 3378 -- 14551 -- 50 -- 16814 -- 4925
When seed is -- 1488155, output is -- 10059 -- 18462 -- 13825 -- 50 -- 5952
When seed is -- 1494200, output is -- 29799 -- 13635 -- 32182 -- 5630 -- 50
When seed is -- 1507553, output is -- 7869 -- 13265 -- 21423 -- 50 -- 6658
When seed is -- 1508381, output is -- 10573 -- 50 -- 1821 -- 1530 -- 27446
When seed is -- 1509948, output is -- 15690 -- 50 -- 11106 -- 25542 -- 2992
When seed is -- 1515193, output is -- 50 -- 14482 -- 24973 -- 15287 -- 2967
When seed is -- 1520445, output is -- 17200 -- 5848 -- 50 -- 9635 -- 9608
When seed is -- 1526951, output is -- 5678 -- 8068 -- 29021 -- 50 -- 7365
When seed is -- 1529352, output is -- 13519 -- 26576 -- 27585 -- 6082 -- 50
When seed is -- 1546349, output is -- 3488 -- 2871 -- 3851 -- 50 -- 8072
When seed is -- 1550126, output is -- 15822 -- 50 -- 7515 -- 21522 -- 5067
When seed is -- 1554460, output is -- 29975 -- 20315 -- 50 -- 11379 -- 12881
When seed is -- 1564504, output is -- 30007 -- 6749 -- 22988 -- 6534 -- 50
When seed is -- 1565365, output is -- 50 -- 20551 -- 3080 -- 15672 -- 771
When seed is -- 1588475, output is -- 9982 -- 2015 -- 50 -- 13124 -- 16153
When seed is -- 1590304, output is -- 15955 -- 50 -- 3924 -- 17501 -- 7142
When seed is -- 1595468, output is -- 50 -- 28597 -- 12585 -- 24197 -- 23604
When seed is -- 1599656, output is -- 13726 -- 19691 -- 18392 -- 6987 -- 50
When seed is -- 1622811, output is -- 23805 -- 26080 -- 50 -- 5944 -- 20837
When seed is -- 1625571, output is -- 50 -- 3874 -- 22091 -- 32722 -- 13670
When seed is -- 1630482, output is -- 16087 -- 50 -- 333 -- 13480 -- 9217
When seed is -- 1634808, output is -- 30214 -- 32632 -- 13795 -- 7439 -- 50
When seed is -- 1656826, output is -- 3811 -- 7780 -- 50 -- 7689 -- 24109
When seed is -- 1657512, output is -- 6052 -- 8387 -- 32408 -- 50 -- 22019
When seed is -- 1669960, output is -- 13934 -- 12805 -- 9198 -- 7892 -- 50
When seed is -- 1670660, output is -- 16219 -- 50 -- 29510 -- 9459 -- 11292
When seed is -- 1675743, output is -- 50 -- 9943 -- 198 -- 339 -- 11474
When seed is -- 1676910, output is -- 3861 -- 3190 -- 7238 -- 50 -- 22726
When seed is -- 1690841, output is -- 16586 -- 22247 -- 50 -- 9434 -- 27382
When seed is -- 1696308, output is -- 1671 -- 30761 -- 14836 -- 50 -- 23433
When seed is -- 1705112, output is -- 30421 -- 25747 -- 4601 -- 8344 -- 50
When seed is -- 1705846, output is -- 50 -- 17989 -- 9703 -- 8865 -- 1539
When seed is -- 1710838, output is -- 16352 -- 50 -- 25919 -- 5439 -- 13367
When seed is -- 1712405, output is -- 21469 -- 50 -- 2436 -- 29451 -- 21681
When seed is -- 1715706, output is -- 32249 -- 25564 -- 22434 -- 50 -- 24139
When seed is -- 1725177, output is -- 30409 -- 13545 -- 50 -- 2254 -- 32065
When seed is -- 1735104, output is -- 30058 -- 20367 -- 30032 -- 50 -- 24846
When seed is -- 1735949, output is -- 50 -- 26034 -- 19209 -- 17390 -- 24373
When seed is -- 1740264, output is -- 14141 -- 5920 -- 5 -- 8797 -- 50
When seed is -- 1752583, output is -- 21601 -- 50 -- 31613 -- 25431 -- 23756
When seed is -- 1754502, output is -- 27868 -- 15170 -- 4862 -- 50 -- 25552
When seed is -- 1759192, output is -- 10416 -- 28012 -- 50 -- 3999 -- 2570
When seed is -- 1766052, output is -- 50 -- 1312 -- 28714 -- 25915 -- 14439
When seed is -- 1773900, output is -- 25678 -- 9973 -- 12460 -- 50 -- 26259
When seed is -- 1775416, output is -- 30628 -- 18861 -- 28176 -- 9249 -- 50
When seed is -- 1786121, output is -- 50 -- 32104 -- 30083 -- 17775 -- 22177
When seed is -- 1788241, output is -- 6974 -- 12197 -- 22319 -- 12224 -- 50
When seed is -- 1792761, output is -- 21734 -- 50 -- 28022 -- 21410 -- 25831
When seed is -- 1793207, output is -- 23190 -- 9711 -- 50 -- 5744 -- 5843
When seed is -- 1816224, output is -- 50 -- 7381 -- 6821 -- 26300 -- 12242
When seed is -- 1823393, output is -- 23461 -- 25138 -- 17722 -- 12676 -- 50
When seed is -- 1827543, output is -- 4245 -- 1009 -- 50 -- 31332 -- 10526
When seed is -- 1832939, output is -- 21866 -- 50 -- 24431 -- 17389 -- 27906
When seed is -- 1846327, output is -- 50 -- 15427 -- 16326 -- 2057 -- 2308
When seed is -- 1858545, output is -- 7181 -- 5312 -- 13125 -- 13129 -- 50
When seed is -- 1861558, output is -- 17020 -- 15476 -- 50 -- 309 -- 13799
When seed is -- 1873117, output is -- 21999 -- 50 -- 20840 -- 13368 -- 29981
When seed is -- 1874684, output is -- 27116 -- 50 -- 30125 -- 4613 -- 5527
When seed is -- 1876430, output is -- 50 -- 23472 -- 25832 -- 10583 -- 25142
When seed is -- 1885063, output is -- 28241 -- 15488 -- 8248 -- 50 -- 7439
When seed is -- 1893697, output is -- 23668 -- 18253 -- 8529 -- 13581 -- 50
When seed is -- 1895573, output is -- 29795 -- 29943 -- 50 -- 2054 -- 17072
When seed is -- 1904461, output is -- 26051 -- 10291 -- 15846 -- 50 -- 8145
When seed is -- 1914862, output is -- 27248 -- 50 -- 26534 -- 592 -- 7602
When seed is -- 1923859, output is -- 23861 -- 5095 -- 23444 -- 50 -- 8852
When seed is -- 1926602, output is -- 50 -- 29541 -- 3939 -- 10968 -- 22945
When seed is -- 1928849, output is -- 7388 -- 31194 -- 3932 -- 14034 -- 50
When seed is -- 1929909, output is -- 10850 -- 21241 -- 50 -- 27642 -- 21755
When seed is -- 1943257, output is -- 21671 -- 32666 -- 31042 -- 50 -- 9558
When seed is -- 1955040, output is -- 27381 -- 50 -- 22943 -- 29340 -- 9677
When seed is -- 1956705, output is -- 50 -- 4819 -- 13444 -- 19493 -- 13011
When seed is -- 1962655, output is -- 19480 -- 27469 -- 5872 -- 50 -- 10265
When seed is -- 1963924, output is -- 23624 -- 2940 -- 50 -- 29387 -- 25028
When seed is -- 1964001, output is -- 23876 -- 11368 -- 32103 -- 14486 -- 50
When seed is -- 1982053, output is -- 17290 -- 22272 -- 13470 -- 50 -- 10971
When seed is -- 1986808, output is -- 50 -- 12864 -- 22950 -- 28018 -- 3077
When seed is -- 1995218, output is -- 27513 -- 50 -- 19352 -- 25319 -- 11752
When seed is -- 1997939, output is -- 3631 -- 17408 -- 50 -- 31132 -- 28301
When seed is -- 1999153, output is -- 7595 -- 24309 -- 27506 -- 14939 -- 50
When seed is -- 2016911, output is -- 50 -- 20910 -- 32455 -- 3776 -- 25910
When seed is -- 2032275, output is -- 17454 -- 8705 -- 50 -- 23952 -- 216
When seed is -- 2034305, output is -- 24083 -- 4482 -- 22910 -- 15391 -- 50
When seed is -- 2035396, output is -- 27646 -- 50 -- 15761 -- 21298 -- 13827
When seed is -- 2036980, output is -- 50 -- 18934 -- 1056 -- 28403 -- 880
When seed is -- 2066290, output is -- 30229 -- 23173 -- 50 -- 25697 -- 3489
When seed is -- 2067083, output is -- 50 -- 26979 -- 10562 -- 4161 -- 23714
When seed is -- 2069457, output is -- 7803 -- 17424 -- 18313 -- 15843 -- 50
When seed is -- 2075574, output is -- 27778 -- 50 -- 12170 -- 17278 -- 15901
When seed is -- 2077141, output is -- 127 -- 50 -- 21455 -- 8522 -- 24216
When seed is -- 2093216, output is -- 19854 -- 27787 -- 9259 -- 50 -- 24919
When seed is -- 2097186, output is -- 50 -- 2256 -- 20068 -- 12686 -- 13780
When seed is -- 2100305, output is -- 10235 -- 4872 -- 50 -- 27442 -- 6761
When seed is -- 2104609, output is -- 24290 -- 30365 -- 13716 -- 16296 -- 50
When seed is -- 2112614, output is -- 17663 -- 22590 -- 16857 -- 50 -- 25626
When seed is -- 2117319, output is -- 260 -- 50 -- 17864 -- 4501 -- 26290
When seed is -- 2127289, output is -- 50 -- 10302 -- 29573 -- 21211 -- 3845
When seed is -- 2132012, output is -- 15473 -- 17393 -- 24455 -- 50 -- 26332
When seed is -- 2134641, output is -- 24058 -- 28938 -- 50 -- 20262 -- 11445
When seed is -- 2139761, output is -- 8010 -- 10538 -- 9120 -- 16748 -- 50
When seed is -- 2151410, output is -- 13283 -- 12196 -- 32053 -- 50 -- 27039
When seed is -- 2152586, output is -- 17123 -- 3874 -- 3263 -- 19723 -- 50
When seed is -- 2157497, output is -- 392 -- 50 -- 14273 -- 481 -- 28365
When seed is -- 2168656, output is -- 4065 -- 10637 -- 50 -- 22007 -- 14717
When seed is -- 2170808, output is -- 11092 -- 7000 -- 6883 -- 50 -- 27745
When seed is -- 2177461, output is -- 50 -- 16371 -- 7680 -- 21596 -- 1649
When seed is -- 2187738, output is -- 843 -- 16816 -- 31434 -- 20175 -- 50
When seed is -- 2190206, output is -- 8902 -- 1803 -- 14481 -- 50 -- 28452
When seed is -- 2197675, output is -- 525 -- 50 -- 10682 -- 29228 -- 30440
When seed is -- 2202671, output is -- 16840 -- 25104 -- 50 -- 23751 -- 17990
When seed is -- 2207564, output is -- 50 -- 24417 -- 17185 -- 30122 -- 24483
When seed is -- 2209604, output is -- 6712 -- 29374 -- 22079 -- 50 -- 29159
When seed is -- 2222890, output is -- 17330 -- 29757 -- 26837 -- 20628 -- 50
When seed is -- 2237007, output is -- 30662 -- 16402 -- 50 -- 16572 -- 22673
When seed is -- 2237667, output is -- 50 -- 32462 -- 26691 -- 5879 -- 14548
When seed is -- 2237853, output is -- 657 -- 50 -- 7091 -- 25207 -- 32515
When seed is -- 2258042, output is -- 1050 -- 9930 -- 22240 -- 21080 -- 50
When seed is -- 2271022, output is -- 10669 -- 30869 -- 50 -- 18317 -- 25946
When seed is -- 2278031, output is -- 790 -- 50 -- 3500 -- 21187 -- 1822
When seed is -- 2279598, output is -- 5907 -- 50 -- 12784 -- 12431 -- 10136
When seed is -- 2287839, output is -- 50 -- 5763 -- 4797 -- 6264 -- 12352
When seed is -- 2293194, output is -- 17538 -- 22872 -- 17644 -- 21533 -- 50
When seed is -- 2305037, output is -- 23444 -- 12568 -- 50 -- 20061 -- 29219
When seed is -- 2317942, output is -- 50 -- 13809 -- 14303 -- 14789 -- 2418
When seed is -- 2319776, output is -- 6039 -- 50 -- 9193 -- 8410 -- 12211
When seed is -- 2320767, output is -- 9275 -- 2121 -- 17867 -- 50 -- 10339
When seed is -- 2328346, output is -- 1257 -- 3045 -- 13047 -- 21985 -- 50
When seed is -- 2339373, output is -- 4499 -- 3866 -- 50 -- 12882 -- 1134
When seed is -- 2340165, output is -- 7085 -- 29692 -- 25465 -- 50 -- 11045
When seed is -- 2348045, output is -- 50 -- 21854 -- 23809 -- 23314 -- 25251
When seed is -- 2359563, output is -- 4895 -- 24495 -- 295 -- 50 -- 11752
When seed is -- 2359954, output is -- 6172 -- 50 -- 5603 -- 4390 -- 14286
When seed is -- 2363498, output is -- 17745 -- 15986 -- 8450 -- 22438 -- 50
When seed is -- 2373388, output is -- 17273 -- 18333 -- 50 -- 14626 -- 4407
When seed is -- 2378148, output is -- 50 -- 29900 -- 546 -- 31840 -- 15317
When seed is -- 2378961, output is -- 2704 -- 19298 -- 7894 -- 50 -- 12458
When seed is -- 2398217, output is -- 50 -- 27924 -- 1915 -- 23699 -- 23055
When seed is -- 2398359, output is -- 514 -- 14101 -- 15492 -- 50 -- 13165
When seed is -- 2398650, output is -- 1464 -- 28928 -- 3853 -- 22890 -- 50
When seed is -- 2400132, output is -- 6304 -- 50 -- 2012 -- 369 -- 16361
When seed is -- 2407403, output is -- 30048 -- 33 -- 50 -- 16371 -- 7680
When seed is -- 2417757, output is -- 31092 -- 8904 -- 23090 -- 50 -- 13871
When seed is -- 2428320, output is -- 50 -- 3201 -- 11421 -- 32225 -- 13121
When seed is -- 2433802, output is -- 17952 -- 9101 -- 32025 -- 23343 -- 50
When seed is -- 2440310, output is -- 6436 -- 50 -- 31189 -- 29116 -- 18436
When seed is -- 2441739, output is -- 11103 -- 24098 -- 50 -- 9192 -- 12363
When seed is -- 2458423, output is -- 50 -- 11247 -- 20926 -- 7982 -- 3186
When seed is -- 2468954, output is -- 1672 -- 22042 -- 27428 -- 23795 -- 50
When seed is -- 2475754, output is -- 23878 -- 5798 -- 50 -- 10936 -- 15636
When seed is -- 2480488, output is -- 6569 -- 50 -- 27598 -- 25096 -- 20511
When seed is -- 2482055, output is -- 11686 -- 50 -- 4114 -- 16340 -- 28825
When seed is -- 2488526, output is -- 50 -- 19292 -- 30432 -- 16507 -- 26020
When seed is -- 2504106, output is -- 18159 -- 2216 -- 22831 -- 24247 -- 50

D:\My Projects\AntiOnline\261497>

So you would have to go through the entire keyspace of like 4 billion characters to find what you are looking for. But at least this works out that if you have the first 3 random numbers, you can find out exactly what number it was seeded with and then you can be 100% sure you have the right key. ( 2^32 input, 2^15 output per number generated, once you get past two random numbers (2^30 in the output) you will have the 3rd one bring the input < output, which isn't possible and some combinations aren't possible and are pretty rare after that) I probably don't make a whole lot of sense, haha.

If you don't want to have to brute force, you'd have to somehow reverse the GNU implementation of srand() and rand() and understand it perfectly well, study your friend's program for a long time, and then study a lot of regular expressions and write a program that can detect patterns in text/encrypted files, and then figure out what srand() is most likely to produce some text output as per the algorithm of the program that encrypted it... It would probably take much more time than brute-forcing in this case, unless you have millions of files to work with and you don't want to do them manually... At least with brute-force, you don't have to reverse the GNU srand() and rand(), only use them, and then use some regular expressions to find out what looks like a message among all of your output. I make even less sense now, lol.

**AxessTerminated** · September 13th, 2004, 02:26 AM

I got lost...

A_T

Thread: Cracking this algorithm.

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