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Клубове Дирене Регистрация Кой е тук Въпроси Списък Купувам / Продавам 11:56 30.04.24 
Компютри и Интернет
   >> Хакери, Кракери ....
*Кратък преглед

Страници по тази тема: 1 | 2 | >> (покажи всички)
Тема Криптираненови  
АвторBиkтop (Нерегистриран)
Публикувано04.06.05 02:08



Моля, дайте ми линкове към програмки за криптиране(безплатни, ако може) и ако не ви представлява трудност, обяснете коя каква сигурност дава и изобщо какво трябва да направи човек така че да защити даден файл от прочитане 100%, колкото и идеалистично да звучи това(ясно е, че абсолютна защита няма!). Ще съм ви много благодарен!



Тема Re: Криптиране [re: Bиkтop]  
Автор ghs (познат)
Публикувано04.06.05 12:31



Какво точно искаш да криптираш? Така говориш много глобално!



Тема Re: Криптираненови [re: ghs]  
АвторBиkтop (Нерегистриран)
Публикувано04.06.05 14:09



Приятел, исками се да не звуча обидно, но криптирането е универсален процес - или криптираш изобщо данни, или не. Няма никакво значение тези данни текстови, графични или звукови са. Така или иначе, компютърните схеми за криптиране работят директно с двоичния код. Ако ще криптираш на ръка - там има специални схеми за текст, но този случаи нас не ни интересува.
И за да отговоря все пак на въпроса ти - ще криптирам основно текст, да речем doc-файлове в директории...



Тема Re: Криптиране [re: Bиkтop]  
Автор ghs (познат)
Публикувано04.06.05 20:12



Ми... нааааай-лесният и бърз начин да криптираш обикновен текстов файл е чрез програма за поща, Mozilla Thunderbird например.



Тема Re: Криптиране [re: ghs]  
АвторBиkтop (Нерегистриран)
Публикувано04.06.05 23:42



И как точно става така? Колко бита е криптирането? Каква сигурност дава?
Мен ме интересува повече сигурността, не леснотата.



Тема Re: Криптиране [re: Bиkтop]  
Автор ghs (познат)
Публикувано05.06.05 08:02



128 bit устройва ли те??? Ето ти връзка към програма която ще ти свърши раобта, а и е безплатна:





Тема Re: Криптиране [re: ghs]  
АвторBиkтop (Нерегистриран)
Публикувано05.06.05 12:02



Ми, по принцип не. :)) Всъщност се надявах "хакерите" да ми кажат какво ме устройва. Съдейки по законодателството на САЩ, истинска сигурност има над 440 бита. Има доста такива програми, просто исках някоя за която "хакерите" да знаят, че я бива и която е безплатна, щото аз вече знам една PC-Encrypt, която вероятно би ми свършила работа, но струва пари.



Тема Re: Криптиране [re: Bиkтop]  
Автор ghs (познат)
Публикувано05.06.05 12:47



Ето ти тогава един най-обикновен HTML файл криптиран с BlowFish и е направен с прост Java Script код и като толкова много се цупиш ходи го разгадаи:


<html>
<script>
var Blowfish_P;
var Blowfish_S;
var Blowfish_previous_xHi=0;
var Blowfish_previous_xLo=0;
var Blowfish_NRounds=16;

function Blowfish_setConstants()
{
var s0 = new Array(
0xD1310BA6, 0x98DFB5AC, 0x2FFD72DB, 0xD01ADFB7, 0xB8E1AFED, 0x6A267E96, 0xBA7C9045, 0xF12C7F99,
0x24A19947, 0xB3916CF7, 0x0801F2E2, 0x858EFC16, 0x636920D8, 0x71574E69, 0xA458FEA3, 0xF4933D7E,
0x0D95748F, 0x728EB658, 0x718BCD58, 0x82154AEE, 0x7B54A41D, 0xC25A59B5, 0x9C30D539, 0x2AF26013,
0xC5D1B023, 0x286085F0, 0xCA417918, 0xB8DB38EF, 0x8E79DCB0, 0x603A180E, 0x6C9E0E8B, 0xB01E8A3E,
0xD71577C1, 0xBD314B27, 0x78AF2FDA, 0x55605C60, 0xE65525F3, 0xAA55AB94, 0x57489862, 0x63E81440,
0x55CA396A, 0x2AAB10B6, 0xB4CC5C34, 0x1141E8CE, 0xA15486AF, 0x7C72E993, 0xB3EE1411, 0x636FBC2A,
0x2BA9C55D, 0x741831F6, 0xCE5C3E16, 0x9B87931E, 0xAFD6BA33, 0x6C24CF5C, 0x7A325381, 0x28958677,
0x3B8F4898, 0x6B4BB9AF, 0xC4BFE81B, 0x66282193, 0x61D809CC, 0xFB21A991, 0x487CAC60, 0x5DEC8032,
0xEF845D5D, 0xE98575B1, 0xDC262302, 0xEB651B88, 0x23893E81, 0xD396ACC5, 0x0F6D6FF3, 0x83F44239,
0x2E0B4482, 0xA4842004, 0x69C8F04A, 0x9E1F9B5E, 0x21C66842, 0xF6E96C9A, 0x670C9C61, 0xABD388F0,
0x6A51A0D2, 0xD8542F68, 0x960FA728, 0xAB5133A3, 0x6EEF0B6C, 0x137A3BE4, 0xBA3BF050, 0x7EFB2A98,
0xA1F1651D, 0x39AF0176, 0x66CA593E, 0x82430E88, 0x8CEE8619, 0x456F9FB4, 0x7D84A5C3, 0x3B8B5EBE,
0xE06F75D8, 0x85C12073, 0x401A449F, 0x56C16AA6, 0x4ED3AA62, 0x363F7706, 0x1BFEDF72, 0x429B023D,
0x37D0D724, 0xD00A1248, 0xDB0FEAD3, 0x49F1C09B, 0x075372C9, 0x80991B7B, 0x25D479D8, 0xF6E8DEF7,
0xE3FE501A, 0xB6794C3B, 0x976CE0BD, 0x04C006BA, 0xC1A94FB6, 0x409F60C4, 0x5E5C9EC2, 0x196A2463,
0x68FB6FAF, 0x3E6C53B5, 0x1339B2EB, 0x3B52EC6F, 0x6DFC511F, 0x9B30952C, 0xCC814544, 0xAF5EBD09,
0xBEE3D004, 0xDE334AFD, 0x660F2807, 0x192E4BB3, 0xC0CBA857, 0x45C8740F, 0xD20B5F39, 0xB9D3FBDB,
0x5579C0BD, 0x1A60320A, 0xD6A100C6, 0x402C7279, 0x679F25FE, 0xFB1FA3CC, 0x8EA5E9F8, 0xDB3222F8,
0x3C7516DF, 0xFD616B15, 0x2F501EC8, 0xAD0552AB, 0x323DB5FA, 0xFD238760, 0x53317B48, 0x3E00DF82,
0x9E5C57BB, 0xCA6F8CA0, 0x1A87562E, 0xDF1769DB, 0xD542A8F6, 0x287EFFC3, 0xAC6732C6, 0x8C4F5573,
0x695B27B0, 0xBBCA58C8, 0xE1FFA35D, 0xB8F011A0, 0x10FA3D98, 0xFD2183B8, 0x4AFCB56C, 0x2DD1D35B,
0x9A53E479, 0xB6F84565, 0xD28E49BC, 0x4BFB9790, 0xE1DDF2DA, 0xA4CB7E33, 0x62FB1341, 0xCEE4C6E8,
0xEF20CADA, 0x36774C01, 0xD07E9EFE, 0x2BF11FB4, 0x95DBDA4D, 0xAE909198, 0xEAAD8E71, 0x6B93D5A0,
0xD08ED1D0, 0xAFC725E0, 0x8E3C5B2F, 0x8E7594B7, 0x8FF6E2FB, 0xF2122B64, 0x8888B812, 0x900DF01C,
0x4FAD5EA0, 0x688FC31C, 0xD1CFF191, 0xB3A8C1AD, 0x2F2F2218, 0xBE0E1777, 0xEA752DFE, 0x8B021FA1,
0xE5A0CC0F, 0xB56F74E8, 0x18ACF3D6, 0xCE89E299, 0xB4A84FE0, 0xFD13E0B7, 0x7CC43B81, 0xD2ADA8D9,
0x165FA266, 0x80957705, 0x93CC7314, 0x211A1477, 0xE6AD2065, 0x77B5FA86, 0xC75442F5, 0xFB9D35CF,
0xEBCDAF0C, 0x7B3E89A0, 0xD6411BD3, 0xAE1E7E49, 0x00250E2D, 0x2071B35E, 0x226800BB, 0x57B8E0AF,
0x2464369B, 0xF009B91E, 0x5563911D, 0x59DFA6AA, 0x78C14389, 0xD95A537F, 0x207D5BA2, 0x02E5B9C5,
0x83260376, 0x6295CFA9, 0x11C81968, 0x4E734A41, 0xB3472DCA, 0x7B14A94A, 0x1B510052, 0x9A532915,
0xD60F573F, 0xBC9BC6E4, 0x2B60A476, 0x81E67400, 0x08BA6FB5, 0x571BE91F, 0xF296EC6B, 0x2A0DD915,
0xB6636521, 0xE7B9F9B6, 0xFF34052E, 0xC5855664, 0x53B02D5D, 0xA99F8FA1, 0x08BA4799, 0x6E85076A);

var s1 = new Array(
0x4B7A70E9, 0xB5B32944, 0xDB75092E, 0xC4192623, 0xAD6EA6B0, 0x49A7DF7D, 0x9CEE60B8, 0x8FEDB266,
0xECAA8C71, 0x699A17FF, 0x5664526C, 0xC2B19EE1, 0x193602A5, 0x75094C29, 0xA0591340, 0xE4183A3E,
0x3F54989A, 0x5B429D65, 0x6B8FE4D6, 0x99F73FD6, 0xA1D29C07, 0xEFE830F5, 0x4D2D38E6, 0xF0255DC1,
0x4CDD2086, 0x8470EB26, 0x6382E9C6, 0x021ECC5E, 0x09686B3F, 0x3EBAEFC9, 0x3C971814, 0x6B6A70A1,
0x687F3584, 0x52A0E286, 0xB79C5305, 0xAA500737, 0x3E07841C, 0x7FDEAE5C, 0x8E7D44EC, 0x5716F2B8,
0xB03ADA37, 0xF0500C0D, 0xF01C1F04, 0x0200B3FF, 0xAE0CF51A, 0x3CB574B2, 0x25837A58, 0xDC0921BD,
0xD19113F9, 0x7CA92FF6, 0x94324773, 0x22F54701, 0x3AE5E581, 0x37C2DADC, 0xC8B57634, 0x9AF3DDA7,
0xA9446146, 0x0FD0030E, 0xECC8C73E, 0xA4751E41, 0xE238CD99, 0x3BEA0E2F, 0x3280BBA1, 0x183EB331,
0x4E548B38, 0x4F6DB908, 0x6F420D03, 0xF60A04BF, 0x2CB81290, 0x24977C79, 0x5679B072, 0xBCAF89AF,
0xDE9A771F, 0xD9930810, 0xB38BAE12, 0xDCCF3F2E, 0x5512721F, 0x2E6B7124, 0x501ADDE6, 0x9F84CD87,
0x7A584718, 0x7408DA17, 0xBC9F9ABC, 0xE94B7D8C, 0xEC7AEC3A, 0xDB851DFA, 0x63094366, 0xC464C3D2,
0xEF1C1847, 0x3215D908, 0xDD433B37, 0x24C2BA16, 0x12A14D43, 0x2A65C451, 0x50940002, 0x133AE4DD,
0x71DFF89E, 0x10314E55, 0x81AC77D6, 0x5F11199B, 0x043556F1, 0xD7A3C76B, 0x3C11183B, 0x5924A509,
0xF28FE6ED, 0x97F1FBFA, 0x9EBABF2C, 0x1E153C6E, 0x86E34570, 0xEAE96FB1, 0x860E5E0A, 0x5A3E2AB3,
0x771FE71C, 0x4E3D06FA, 0x2965DCB9, 0x99E71D0F, 0x803E89D6, 0x5266C825, 0x2E4CC978, 0x9C10B36A,
0xC6150EBA, 0x94E2EA78, 0xA5FC3C53, 0x1E0A2DF4, 0xF2F74EA7, 0x361D2B3D, 0x1939260F, 0x19C27960,
0x5223A708, 0xF71312B6, 0xEBADFE6E, 0xEAC31F66, 0xE3BC4595, 0xA67BC883, 0xB17F37D1, 0x018CFF28,
0xC332DDEF, 0xBE6C5AA5, 0x65582185, 0x68AB9802, 0xEECEA50F, 0xDB2F953B, 0x2AEF7DAD, 0x5B6E2F84,
0x1521B628, 0x29076170, 0xECDD4775, 0x619F1510, 0x13CCA830, 0xEB61BD96, 0x0334FE1E, 0xAA0363CF,
0xB5735C90, 0x4C70A239, 0xD59E9E0B, 0xCBAADE14, 0xEECC86BC, 0x60622CA7, 0x9CAB5CAB, 0xB2F3846E,
0x648B1EAF, 0x19BDF0CA, 0xA02369B9, 0x655ABB50, 0x40685A32, 0x3C2AB4B3, 0x319EE9D5, 0xC021B8F7,
0x9B540B19, 0x875FA099, 0x95F7997E, 0x623D7DA8, 0xF837889A, 0x97E32D77, 0x11ED935F, 0x16681281,
0x0E358829, 0xC7E61FD6, 0x96DEDFA1, 0x7858BA99, 0x57F584A5, 0x1B227263, 0x9B83C3FF, 0x1AC24696,
0xCDB30AEB, 0x532E3054, 0x8FD948E4, 0x6DBC3128, 0x58EBF2EF, 0x34C6FFEA, 0xFE28ED61, 0xEE7C3C73,
0x5D4A14D9, 0xE864B7E3, 0x42105D14, 0x203E13E0, 0x45EEE2B6, 0xA3AAABEA, 0xDB6C4F15, 0xFACB4FD0,
0xC742F442, 0xEF6ABBB5, 0x654F3B1D, 0x41CD2105, 0xD81E799E, 0x86854DC7, 0xE44B476A, 0x3D816250,
0xCF62A1F2, 0x5B8D2646, 0xFC8883A0, 0xC1C7B6A3, 0x7F1524C3, 0x69CB7492, 0x47848A0B, 0x5692B285,
0x095BBF00, 0xAD19489D, 0x1462B174, 0x23820E00, 0x58428D2A, 0x0C55F5EA, 0x1DADF43E, 0x233F7061,
0x3372F092, 0x8D937E41, 0xD65FECF1, 0x6C223BDB, 0x7CDE3759, 0xCBEE7460, 0x4085F2A7, 0xCE77326E,
0xA6078084, 0x19F8509E, 0xE8EFD855, 0x61D99735, 0xA969A7AA, 0xC50C06C2, 0x5A04ABFC, 0x800BCADC,
0x9E447A2E, 0xC3453484, 0xFDD56705, 0x0E1E9EC9, 0xDB73DBD3, 0x105588CD, 0x675FDA79, 0xE3674340,
0xC5C43465, 0x713E38D8, 0x3D28F89E, 0xF16DFF20, 0x153E21E7, 0x8FB03D4A, 0xE6E39F2B, 0xDB83ADF7);

var s2 = new Array(
0xE93D5A68, 0x948140F7, 0xF64C261C, 0x94692934, 0x411520F7, 0x7602D4F7, 0xBCF46B2E, 0xD4A20068,
0xD4082471, 0x3320F46A, 0x43B7D4B7, 0x500061AF, 0x1E39F62E, 0x97244546, 0x14214F74, 0xBF8B8840,
0x4D95FC1D, 0x96B591AF, 0x70F4DDD3, 0x66A02F45, 0xBFBC09EC, 0x03BD9785, 0x7FAC6DD0, 0x31CB8504,
0x96EB27B3, 0x55FD3941, 0xDA2547E6, 0xABCA0A9A, 0x28507825, 0x530429F4, 0x0A2C86DA, 0xE9B66DFB,
0x68DC1462, 0xD7486900, 0x680EC0A4, 0x27A18DEE, 0x4F3FFEA2, 0xE887AD8C, 0xB58CE006, 0x7AF4D6B6,
0xAACE1E7C, 0xD3375FEC, 0xCE78A399, 0x406B2A42, 0x20FE9E35, 0xD9F385B9, 0xEE39D7AB, 0x3B124E8B,
0x1DC9FAF7, 0x4B6D1856, 0x26A36631, 0xEAE397B2, 0x3A6EFA74, 0xDD5B4332, 0x6841E7F7, 0xCA7820FB,
0xFB0AF54E, 0xD8FEB397, 0x454056AC, 0xBA489527, 0x55533A3A, 0x20838D87, 0xFE6BA9B7, 0xD096954B,
0x55A867BC, 0xA1159A58, 0xCCA92963, 0x99E1DB33, 0xA62A4A56, 0x3F3125F9, 0x5EF47E1C, 0x9029317C,
0xFDF8E802, 0x04272F70, 0x80BB155C, 0x05282CE3, 0x95C11548, 0xE4C66D22, 0x48C1133F, 0xC70F86DC,
0x07F9C9EE, 0x41041F0F, 0x404779A4, 0x5D886E17, 0x325F51EB, 0xD59BC0D1, 0xF2BCC18F, 0x41113564,
0x257B7834, 0x602A9C60, 0xDFF8E8A3, 0x1F636C1B, 0x0E12B4C2, 0x02E1329E, 0xAF664FD1, 0xCAD18115,
0x6B2395E0, 0x333E92E1, 0x3B240B62, 0xEEBEB922, 0x85B2A20E, 0xE6BA0D99, 0xDE720C8C, 0x2DA2F728,
0xD0127845, 0x95B794FD, 0x647D0862, 0xE7CCF5F0, 0x5449A36F, 0x877D48FA, 0xC39DFD27, 0xF33E8D1E,
0x0A476341, 0x992EFF74, 0x3A6F6EAB, 0xF4F8FD37, 0xA812DC60, 0xA1EBDDF8, 0x991BE14C, 0xDB6E6B0D,
0xC67B5510, 0x6D672C37, 0x2765D43B, 0xDCD0E804, 0xF1290DC7, 0xCC00FFA3, 0xB5390F92, 0x690FED0B,
0x667B9FFB, 0xCEDB7D9C, 0xA091CF0B, 0xD9155EA3, 0xBB132F88, 0x515BAD24, 0x7B9479BF, 0x763BD6EB,
0x37392EB3, 0xCC115979, 0x8026E297, 0xF42E312D, 0x6842ADA7, 0xC66A2B3B, 0x12754CCC, 0x782EF11C,
0x6A124237, 0xB79251E7, 0x06A1BBE6, 0x4BFB6350, 0x1A6B1018, 0x11CAEDFA, 0x3D25BDD8, 0xE2E1C3C9,
0x44421659, 0x0A121386, 0xD90CEC6E, 0xD5ABEA2A, 0x64AF674E, 0xDA86A85F, 0xBEBFE988, 0x64E4C3FE,
0x9DBC8057, 0xF0F7C086, 0x60787BF8, 0x6003604D, 0xD1FD8346, 0xF6381FB0, 0x7745AE04, 0xD736FCCC,
0x83426B33, 0xF01EAB71, 0xB0804187, 0x3C005E5F, 0x77A057BE, 0xBDE8AE24, 0x55464299, 0xBF582E61,
0x4E58F48F, 0xF2DDFDA2, 0xF474EF38, 0x8789BDC2, 0x5366F9C3, 0xC8B38E74, 0xB475F255, 0x46FCD9B9,
0x7AEB2661, 0x8B1DDF84, 0x846A0E79, 0x915F95E2, 0x466E598E, 0x20B45770, 0x8CD55591, 0xC902DE4C,
0xB90BACE1, 0xBB8205D0, 0x11A86248, 0x7574A99E, 0xB77F19B6, 0xE0A9DC09, 0x662D09A1, 0xC4324633,
0xE85A1F02, 0x09F0BE8C, 0x4A99A025, 0x1D6EFE10, 0x1AB93D1D, 0x0BA5A4DF, 0xA186F20F, 0x2868F169,
0xDCB7DA83, 0x573906FE, 0xA1E2CE9B, 0x4FCD7F52, 0x50115E01, 0xA70683FA, 0xA002B5C4, 0x0DE6D027,
0x9AF88C27, 0x773F8641, 0xC3604C06, 0x61A806B5, 0xF0177A28, 0xC0F586E0, 0x006058AA, 0x30DC7D62,
0x11E69ED7, 0x2338EA63, 0x53C2DD94, 0xC2C21634, 0xBBCBEE56, 0x90BCB6DE, 0xEBFC7DA1, 0xCE591D76,
0x6F05E409, 0x4B7C0188, 0x39720A3D, 0x7C927C24, 0x86E3725F, 0x724D9DB9, 0x1AC15BB4, 0xD39EB8FC,
0xED545578, 0x08FCA5B5, 0xD83D7CD3, 0x4DAD0FC4, 0x1E50EF5E, 0xB161E6F8, 0xA28514D9, 0x6C51133C,
0x6FD5C7E7, 0x56E14EC4, 0x362ABFCE, 0xDDC6C837, 0xD79A3234, 0x92638212, 0x670EFA8E, 0x406000E0);

var s3 = new Array(
0x3A39CE37, 0xD3FAF5CF, 0xABC27737, 0x5AC52D1B, 0x5CB0679E, 0x4FA33742, 0xD3822740, 0x99BC9BBE,
0xD5118E9D, 0xBF0F7315, 0xD62D1C7E, 0xC700C47B, 0xB78C1B6B, 0x21A19045, 0xB26EB1BE, 0x6A366EB4,
0x5748AB2F, 0xBC946E79, 0xC6A376D2, 0x6549C2C8, 0x530FF8EE, 0x468DDE7D, 0xD5730A1D, 0x4CD04DC6,
0x2939BBDB, 0xA9BA4650, 0xAC9526E8, 0xBE5EE304, 0xA1FAD5F0, 0x6A2D519A, 0x63EF8CE2, 0x9A86EE22,
0xC089C2B8, 0x43242EF6, 0xA51E03AA, 0x9CF2D0A4, 0x83C061BA, 0x9BE96A4D, 0x8FE51550, 0xBA645BD6,
0x2826A2F9, 0xA73A3AE1, 0x4BA99586, 0xEF5562E9, 0xC72FEFD3, 0xF752F7DA, 0x3F046F69, 0x77FA0A59,
0x80E4A915, 0x87B08601, 0x9B09E6AD, 0x3B3EE593, 0xE990FD5A, 0x9E34D797, 0x2CF0B7D9, 0x022B8B51,
0x96D5AC3A, 0x017DA67D, 0xD1CF3ED6, 0x7C7D2D28, 0x1F9F25CF, 0xADF2B89B, 0x5AD6B472, 0x5A88F54C,
0xE029AC71, 0xE019A5E6, 0x47B0ACFD, 0xED93FA9B, 0xE8D3C48D, 0x283B57CC, 0xF8D56629, 0x79132E28,
0x785F0191, 0xED756055, 0xF7960E44, 0xE3D35E8C, 0x15056DD4, 0x88F46DBA, 0x03A16125, 0x0564F0BD,
0xC3EB9E15, 0x3C9057A2, 0x97271AEC, 0xA93A072A, 0x1B3F6D9B, 0x1E6321F5, 0xF59C66FB, 0x26DCF319,
0x7533D928, 0xB155FDF5, 0x03563482, 0x8ABA3CBB, 0x28517711, 0xC20AD9F8, 0xABCC5167, 0xCCAD925F,
0x4DE81751, 0x3830DC8E, 0x379D5862, 0x9320F991, 0xEA7A90C2, 0xFB3E7BCE, 0x5121CE64, 0x774FBE32,
0xA8B6E37E, 0xC3293D46, 0x48DE5369, 0x6413E680, 0xA2AE0810, 0xDD6DB224, 0x69852DFD, 0x09072166,
0xB39A460A, 0x6445C0DD, 0x586CDECF, 0x1C20C8AE, 0x5BBEF7DD, 0x1B588D40, 0xCCD2017F, 0x6BB4E3BB,
0xDDA26A7E, 0x3A59FF45, 0x3E350A44, 0xBCB4CDD5, 0x72EACEA8, 0xFA6484BB, 0x8D6612AE, 0xBF3C6F47,
0xD29BE463, 0x542F5D9E, 0xAEC2771B, 0xF64E6370, 0x740E0D8D, 0xE75B1357, 0xF8721671, 0xAF537D5D,
0x4040CB08, 0x4EB4E2CC, 0x34D2466A, 0x0115AF84, 0xE1B00428, 0x95983A1D, 0x06B89FB4, 0xCE6EA048,
0x6F3F3B82, 0x3520AB82, 0x011A1D4B, 0x277227F8, 0x611560B1, 0xE7933FDC, 0xBB3A792B, 0x344525BD,
0xA08839E1, 0x51CE794B, 0x2F32C9B7, 0xA01FBAC9, 0xE01CC87E, 0xBCC7D1F6, 0xCF0111C3, 0xA1E8AAC7,
0x1A908749, 0xD44FBD9A, 0xD0DADECB, 0xD50ADA38, 0x0339C32A, 0xC6913667, 0x8DF9317C, 0xE0B12B4F,
0xF79E59B7, 0x43F5BB3A, 0xF2D519FF, 0x27D9459C, 0xBF97222C, 0x15E6FC2A, 0x0F91FC71, 0x9B941525,
0xFAE59361, 0xCEB69CEB, 0xC2A86459, 0x12BAA8D1, 0xB6C1075E, 0xE3056A0C, 0x10D25065, 0xCB03A442,
0xE0EC6E0E, 0x1698DB3B, 0x4C98A0BE, 0x3278E964, 0x9F1F9532, 0xE0D392DF, 0xD3A0342B, 0x8971F21E,
0x1B0A7441, 0x4BA3348C, 0xC5BE7120, 0xC37632D8, 0xDF359F8D, 0x9B992F2E, 0xE60B6F47, 0x0FE3F11D,
0xE54CDA54, 0x1EDAD891, 0xCE6279CF, 0xCD3E7E6F, 0x1618B166, 0xFD2C1D05, 0x848FD2C5, 0xF6FB2299,
0xF523F357, 0xA6327623, 0x93A83531, 0x56CCCD02, 0xACF08162, 0x5A75EBB5, 0x6E163697, 0x88D273CC,
0xDE966292, 0x81B949D0, 0x4C50901B, 0x71C65614, 0xE6C6C7BD, 0x327A140A, 0x45E1D006, 0xC3F27B9A,
0xC9AA53FD, 0x62A80F00, 0xBB25BFE2, 0x35BDD2F6, 0x71126905, 0xB2040222, 0xB6CBCF7C, 0xCD769C2B,
0x53113EC0, 0x1640E3D3, 0x38ABBD60, 0x2547ADF0, 0xBA38209C, 0xF746CE76, 0x77AFA1C5, 0x20756060,
0x85CBFE4E, 0x8AE88DD8, 0x7AAAF9B0, 0x4CF9AA7E, 0x1948C25C, 0x02FB8A8C, 0x01C36AE4, 0xD6EBE1F9,
0x90D4F869, 0xA65CDEA0, 0x3F09252D, 0xC208E69F, 0xB74E6132, 0xCE77E25B, 0x578FDFE3, 0x3AC372E6);

Blowfish_S = new Array(s0, s1, s2, s3);

Blowfish_P = new Array(
0x243F6A88, 0x85A308D3, 0x13198A2E, 0x03707344, 0xA4093822, 0x299F31D0,
0x082EFA98, 0xEC4E6C89, 0x452821E6, 0x38D01377, 0xBE5466CF, 0x34E90C6C,
0xC0AC29B7, 0xC97C50DD, 0x3F84D5B5, 0xB5470917, 0x9216D5D9, 0x8979FB1B);
}

function Blowfish_encipher(x)
{
var xHi = x[0];
var xLo = x[1];
var Round=0;

xHi ^= Blowfish_P[0];

while(Round < Blowfish_NRounds)
{
xLo ^= (((Blowfish_S[0][xHi >>> 24] + Blowfish_S[1][(xHi >>> 16) & 0x0ff]) ^ Blowfish_S[2][(xHi >>> 8) & 0x0ff]) + Blowfish_S[3][xHi & 0x0ff]) ^ Blowfish_P[++Round];
xHi ^= (((Blowfish_S[0][xLo >>> 24] + Blowfish_S[1][(xLo >>> 16) & 0x0ff]) ^ Blowfish_S[2][(xLo >>> 8) & 0x0ff]) + Blowfish_S[3][xLo & 0x0ff]) ^ Blowfish_P[++Round];
}

xLo ^= Blowfish_P[Blowfish_NRounds + 1];

x[0] = xLo;
x[1] = xHi;
}

function Blowfish_decipher(x)
{
var count;
var xHi;
var xLo;
var Round;

for(i=0;i < x.length;i+=2)
{
xHi = x;
xLo = x[i+1];

xHi ^= Blowfish_P[Blowfish_NRounds + 1];

Round=Blowfish_NRounds;

while(Round>0)
{
xLo ^= (((Blowfish_S[0][xHi >>> 24] + Blowfish_S[1][(xHi >>> 16) & 0x0ff]) ^ Blowfish_S[2][(xHi >>> 8) & 0x0ff]) + Blowfish_S[3][xHi & 0x0ff]) ^ Blowfish_P[Round--];
xHi ^= (((Blowfish_S[0][xLo >>> 24] + Blowfish_S[1][(xLo >>> 16) & 0x0ff]) ^ Blowfish_S[2][(xLo >>> 8) & 0x0ff]) + Blowfish_S[3][xLo & 0x0ff]) ^ Blowfish_P[Round--];
}

xLo ^= Blowfish_P[0];

var temp;

temp = x;
x = xLo ^ Blowfish_previous_xHi;
Blowfish_previous_xHi = temp;

temp = x[i+1];
x[i+1] = xHi ^ Blowfish_previous_xLo;
Blowfish_previous_xLo = temp;
}
}

function Blowfish_initialise(key, IV, N)
{ var i, j, k, data;
var block = new Array(2);

Blowfish_previous_xHi = IV[0];
Blowfish_previous_xLo = IV[1];

Blowfish_setConstants();
Blowfish_NRounds = N;

for (j = 0, i = 0; i < N + 2; ++i)
{
Blowfish_P = Blowfish_P ^ key[j];
j = (j+1)%14;
}

for (i = 0; i < Blowfish_NRounds + 2; i += 2)
{
Blowfish_encipher(block);

Blowfish_P = block[0];
Blowfish_P[i + 1] = block[1];
}

for (i = 0; i < 4; ++i)
{ for (j = 0; j < 256; j += 2)
{
Blowfish_encipher(block);
Blowfish_S[j] = block[0];
Blowfish_S[j + 1] = block[1];
}
}
}

function stringtoints(instring)
{
var binary = new Array();
var i, ch;

for(i=0;i<instring.length;i++)
{
ch = instring.charCodeAt(i);
binary[i>>2] |= ch << (3 - i%4)*8;
}
return binary;
}

function base64tobin(codestring)
{
var i = 0;
var temp;
var binary = new Array();

while(i < codestring.length * 6)
{
temp = codestring.charCodeAt(i/6);

if(temp>47 && temp<58) temp -= 48;
if(temp>62 && temp<91) temp -= 53;
if(temp>96 && temp<123) temp -= 59;

switch(i&0x1f)//i%32
{
case 0: binary[i>>5] = temp;
i += 6;
break;
case 28: binary[i>>5] = (binary[i>>5] << 4) | (temp >> 2);
i += 4;
binary[i>>5] = temp & 0x03;
i += 2;
break;
case 30: binary[i>>5] = (binary[i>>5] << 2) | (temp >> 4);
i += 2;
binary[i>>5] = temp & 0x0f;
i += 4;
break;
default: binary[i>>5] = (binary[i>>5] << 6) | temp;
i += 6;
}
}
return binary;
}

function intstostring(intvalues)
{ var outstring = new String();

for(var i=0;i<intvalues.length;i++)
{
outstring += String.fromCharCode
(
intvalues >>> 24,
(intvalues >>> 16) & 0xff,
(intvalues >>> 8) & 0xff,
intvalues & 0xff
);
}
return outstring;
}

function decipher(ciphertext)
{
var buffer = base64tobin(ciphertext);
Blowfish_decipher(buffer);
document.write(intstostring(buffer));
}

function passtokey(pass, HiIV, LoIV, salt, hash)
{
var binarypassword = stringtoints(pass);
var block = new Array(2);
var key = new Array(14);
var i, j;

block[0] = HiIV;
block[1] = LoIV;

for(i=0;i<binarypassword.length;i++)
{
Blowfish_initialise(key, block, 16);

for(j=0;j<14;)
{
block[0] ^= binarypassword;

Blowfish_encipher(block);

key[j++] ^= block[0];
key[j++] ^= block[1];
}
}

block[0] ^= salt;
Blowfish_initialise(key, block, 16);
Blowfish_encipher(block);

if(hash == (block[0] ^ block[1]))
{
return key;
}
else
{
return null;
}
}

function readCookie(name)
{
var cookieValue = "";
var search = name + "=";
if(document.cookie.length > 0)
{
offset = document.cookie.indexOf(search);
if (offset != -1)
{
offset += search.length;
end = document.cookie.indexOf(";", offset);
if (end == -1) end = document.cookie.length;
cookieValue = unescape(document.cookie.substring(offset, end))
}
}
return cookieValue;
}

function writeCookie(name, value)
{
document.cookie = name + "=" + escape(value);
}

var initialints;

function init_page(b64initialints)
{
initialints = base64tobin(b64initialints);
var password = readCookie("password");
var key = passtokey(password, initialints[2], initialints[3], initialints[4], initialints[5]);

if((password == "")||(key == null))
{
askForPassword();
}
else
{
start(initialints, key);
}
}

function password_submit()
{
var password = document.passform.passbox.value;
var key = passtokey(password, initialints[2], initialints[3], initialints[4], initialints[5]);

if(key == null)
{
badPassword();
}
else
{
writeCookie("password", password);
start(initialints, key);
}
return false;
}

function show_password_form(title, text)
{
var formtext = "<head><title>" + title + "</title></head>"
+"<body bgcolor=\"#000000\" text=\"#FFFFFF\" onLoad=\"passform.passbox.focus()\">"
+"<table align=\"center\" height=\"100%\">"
+"<tr><td valign=\"middle\" align=\"center\">"
+"<form name=\"passform\" onSubmit=\"return password_submit()\">"
+"<p>" + text + "
"
+"<input name=\"passbox\" type=\"password\" size=\"50\" tabindex=\"1\"></p>"
+"<p><input type=\"submit\" value=\"Enter\" tabindex=\"2\">&nbsp;<input type=\"reset\" tabindex=\"3\"></p>"
+"</form></td></tr></table></body>"

document.write(formtext);
document.close();
}

function start(initialints, key)
{
Blowfish_initialise(key, initialints, 16);
decipherDocument();
document.close();
}

function decipherDocument()
{
ct = "HkQr7YD@2AGyfNKzwhROfSVuya3j52G5Em7bYd8hoMD@NsssTH@9jMe1iFWys35oUQ2sRcAsVx6rAEKHZG195@FNXlOeBs?syqlDpRViJFgczaS28kiThP@5NW6pjDNXUIKilhKnyqDaXmoWR?fiINuaGoU3WPMIAOHJEao@fZuEFzFr4Tm@@VYY7v0cfq1E2YA4RzYE9lpSxPiHiSPSwWODNr05pciRFrt5c2LnvWHj??5SltKHStJPn7EREL@S5RRRykU4le3V78coctB5ZBvKaXuD5lq0vEfkXAg8eR8JOlwTGq0QBn3aO5@vBd52"
+"b9j1tjRmHCznw2wzyYplSzRxWbDh1ydTyolsUNv01gkrjT4lmS9Un5vtF6lCZMWUa4s8pWnCBYGNxPMJqiazEXz0MNNMX5YGn@55T1UodSCEgKc8ZkhDJ2ildsL3X@4FcKSlErr3E5hbrpCQzPayBYw21shrsyJQ"

decipher(ct)
}
function badPassword()
{
alert("Incorrect Password!!!");
}
function askForPassword()
{
show_password_form(
"Encrypted Web Page",
"<tt>This page is encrypted...
Please enter the password to view it:</tt>"
);
}

init_page('pEptqXqL?dcY0xTRTtKh0V?R4mVpe@2c');
</script>
</html>

Редактирано от ghs на 05.06.05 12:50.



Тема Re: Криптиране [re: ghs]  
АвторBиkтop (Нерегистриран)
Публикувано05.06.05 14:58



Виж сега, всеки може да копира оттук-оттам, да преписва и превежда чужди мисли, но да прави качествен анализ и да дава смислени предложения може само човек, който наистина разбира. Такива в този форум явно няма. Единствено ти се отзова на молбата ми, за което ти благодаря, но реагираш доста странно.
1. Blowfish е може би най-разпространеният алгоритъм в света. Поради причината, че е доста добър, разбира се. Той никога не е кракван, но има пробив в схемата - може да се разбере, че е изпозван за криптиране на дадена информация. Това, разбира се, нищо не означава все още.
2. От горното следва, че аз естествено не мога да ти разгадая кода, но не разбирам и защо трябва да го правя.
3. На мен ми трябва анализ на различни криптиращи средства, както и оценк на сигурността им. Но хората, които разбират от това, явно не си губят времето да пишат по форуми.
4. Не видях колко бита е кодировката на онзи html(ако изобщо може да се разбере), но ако е 128 бита, колкото ти ми предлагаше, вярвай ми, има доста организации в света, които ще го разбият.

Бъди здрав!



Тема Re: Криптираненови [re: Bиkтop]  
АвторrOOty (Нерегистриран)
Публикувано05.06.05 19:03



ето ти 2 примерни предложения
http://www.ice-graphics.com/ICEEncrypt/IndexE.html
http://www.sinnercomputing.com/XorIt.htm

Първата програма ползва 1 000 000 битов ключ , втората го определя на базата на големината на фаила който ще криптираш дали са за пример 5 МБ = 40 000 000 битов ключ , ако реално създават такива ключове и алгоритмите ги бива мисля че е достатъчно добре :) не съм ги пробвал просто видях темата и питах google кво предлага уж за възможо най-голям ключ .




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