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ZEXPL2.EXE and TOOLS. ZIP EXPLODER for ZIP 2.x Version 1.0. The fastest cracking routines in smallest code ! NOTE FOR RUSSIAN READERS : ---------------------------- Éπßß¬¿⌐ óáα¿á¡Γ ñ«¬π¼Ñ¡Γáµ¿¿ ¡áσ«ñ¿Γß∩ »«ß½Ñ á¡ú½¿⌐ß¬«ú« . TRADEMARKS. ------------- Sorry, it's very hard work, so : All product names are registered trademarks of their respective owners. HISTORY OF PROGRAM'S EVOLUTION. --------------------------------- Okay, now let the story goes. About a year ago I stole the archive with sources made by one of C-mans. I always like such funny stuff, and I was trying to unpack that file immediately. I was very suprised by message appeared on my disp- lay : "PKUNZIP: (W12) Warning! Skipped encrypted file: TAPE.C" It was the deal of honor to steal this sources anyway. So I had started to write some ZIP Exploder. The very first version of ZIP Exploder was invented to crack Imploded english text files with 3 Shannon-Fano trees. It was because PKZIP version up to 1.2 uses previously computed SFT tables for all such files. The way to check password was : Update the keys with password, Decrypt 12-bytes stub and compare the very high word of stub with high word of file's CRC, If compared Ok - decrypt the first 16 bytes of file and compare they with text files' standard SFT table, If compared - then we found the RIGHT password. Unfortunately, that version of Exploder did not save the compu- tation state periodically, performed straight keys updating and (oh) had some bugs. I and my friend Dummy Animator have killed it so it will never appear anywhere. One of my friends downloaded me the (non)famous ZIPCRACK in the summer 1993. That program was very curved and its performance wasn't big enough. Password search was limited by 5 characters and this kludge was very inconvenient in use. It updates keys with all of the password notwithstanding updates the password string from its end. Although ZIPCRACK didn't help me to get sources from the archive I had, it kicked me to make second step in the way of Exploder. After I got access to 386 I added CPU checking to it and started searching. Sources and ZIP Exploder itself was downloaded to several BBS in Russia. In this version was introduced new way of key updating - now keys updated with only changed letters. You may feel the dif- ference in speed looking at following calculations : Old version of Exploder does the straight updating and decode 11+1/256 stub bytes before check the stub decoded properly. Time needed to do this with one password : pswdlen*(n)+(11+1/256)*n, where "n" is time for updating one key. New version decodes the same number of bytes in stub, but update keys with only changed bytes. Now "m" is number of available pass- word letters : (1+1/(m)+1/(m^2))*(n)+(11+1/256)*n. If pswdlen is 5 symbols, then difference is about 33 percents ! New version of ZIP Exploder was show the speed about 4,500 passwords per second on AT 286/16 ! It's everything ok, but here came PKZIP 2.04a. None of two programs could crack it. It's not a very hard thing to see what phrase "Improved Password Protection" did mean. All I could see was that password verification had been done by comparing only one byte !!!!! First byte taken from 12-byte stub, second - most high byte CRC32 ! I have NO COMMENTS. After I had seen what PKZIP does I wrote my own program. It's a program we are talking about - ZEXPL2.EXE. This program can crack a password for a number of files - and even better if you have many encrypted files. Now the principle of work is : Compute keys after password using technique described above, loop Decode stub and compare check bytes for each data record, while compared Ok and some data is available. if All data compared Ok then we're have correct password ! Most of frequently entered loops are coded using register vars. Speed marks on my AT 386SX/20 and 486DX/50 show : Machine Non-optimized version Optimized version (type) (pswds/sec) (pswds/sec) ------- ---------------------- ----------------- 386SX 7300 8700 486DX 21200 25600 I can brag about my program speed, can't I ? LIMITATIONS ------------- WARNING !!!!!!!!!!!! The following paragraphs are VERY IMPORTANT ! PLEASE READ THEM CAREFULLY ! This program was invented to beat the archive compressed and enc- rypted by PKZIP 2.04 or earlier versions. No warranties given to Exp- lode files compressed by higher versions of PKZIP. The goal of program is to Explode passwords from archive where one password was used for all the files. You may write your own version of EXTRHDR (see below). HOW TO USE ZEXPL2.EXE AND EXTRHDR.COM. ---------------------------------------- What do you have now ? I think it's encrypted archive, ZEXPL2, and EXTRHDR. The very first thing what you should do is to extract information from the encrypted archive. Run "EXTRHDR archive.zip" for it. All necessary information will be extracted to file ENCRHDRS.DAT. Second step is to create list of used characters. This set of characters used in each password letter is stored in file AVAIL.CHR. WARNING ! No CR, LF, FF or EOF symbols are need ! You may include this sym- bols ONLY if you are SURE THEY WERE USED IN ORIGINAL PASSWORD ! Now you may run the ZEXPL2 to start password searching. Every time ZEXPL2 finds password passed all tests, it will beep three times, display great message about current situation and add password to the end of file PASSWORD.TXT. It's your responsibility to take care about messages displayed by ZEXPL2! My advice is to peri- odically check file PASSWORD.TXT and try new passwords you have found in. SOME TECHNICAL NOTES. ----------------------- First, if you have archive with multiply passwords you have to write your own version of EXTRHDR. Following is format of file ENCRHDRS.DAT : Byte offset Length Value ------------- -------- ------- 0 12d 12-byte crack resistance header of file 12d 1 The very high byte of file CRC to compare with 13d 3 Align bytes not used by ZEXPL2. Several words about AVAIL.CHR. Password search is simple bytes substitution. It means sequen- tially try strings "aaa","aab","aac",...,"aba","abb",abc" etc. Even one extra symbol will result several millions addititional passwords. It's very important to specify character set as careful as it possible. DO NOT ADD CR,LF or EOF symbols to end of charset file AVAIL.CHR !!!!!!!!!!!!!!!!!! Whether found password correct or not depends on how many files you had to extract with EXTRHDR. Each file reduces probability of incorrect password to 1/256 times (one byte range). One extracted file - 1/256 (0.39%), two files - 1/65536 (0.0015%), three files - 1/16777216 (0.00000596%). Twelve extracted files make you sure that found password will be the only one correct for this set of files. It's because PKZIP's encryption scheme is limited by 12 bytes ran- dom number generator. THANKS ! GOES TO ... ---------------------- Dmitry A.Lemechov and Leopold A.Kaganov - just for they funny characters, Rinat A.Sadretdinov (better known as Dummy Animator or Sludge Vohaul) - for his help on editing this text and programming advices, Alexey Nikolaev and Serguey Berkovitch - for their help in FIDO orientation, My parents - I can't say only "Thank !" to them, but I have not enough good words ..., My brother Timka - very wonderful guy !, Phil Katz - for documentation on earlier version of PKZIP, and I hope he will supply next versions of PKZIP with it, And many, many, many other peoples I (don't) know... TO ALL OF YOURS !!!!! With best regards, Serguey A.Zefirov, December 1993. P.S. Wanna next version ? Don't your copy of ZEXPL2 work properly ? Do you have any suggestions or you have found bugs ? Please write to : FIDO : 2:5020/203.11 117465, Russia, Moscow, Generala Tyuleneva st., 17,69, Serguey Alexandrovitch Zefirov. P.P.S Password of ARJ archive can be found within not more than week of work. All the work can be done (even better done) manually. My two experiences of ARJ Exploding were succeed in two hours. P.P.S. ZEXPL2 passed test I gave to it - at the time I was writing this message ZEXPL2 had succesfully found password for sources of another c-man. It's funny, isn't it ? ; ***************************************************************************** ; English text ends here ; ***************************************************************************** ; ***************************************************************************** ; çñÑß∞ απßß¬¿⌐ óáα¿á¡Γ ñ«¬π¼Ñ¡Γáµ¿¿. ; ***************************************************************************** è ÇìâïÄƒç¢ùì¢î ùêÆÇÆàïƒî : ---------------------------- The english text is above. Where were you all the time ? ÆÄÉâÄé¢à çìÇèê. ----------------- ¥Γ« «τÑ¡∞ ¼πΓ«α¡«Ñ ºá¡∩Γ¿Ñ, »«φΓ«¼π : éßÑ ¡¿ªÑ(óδΦÑ) π»«¼∩¡πΓδÑ ¿¼Ñ¡á »α«ñπ¬Γ«ó ÑßΓ∞ Γ«αú«óδÑ º¡á¬¿ ß«- «ΓóÑΓßΓóπεΘ¿σ ¬«¼»á¡¿⌐(»αÑñ»α¿∩Γ¿⌐). êæÆÄÉêƒ ÉÇçéêÆêƒ ÅÉÄâÉÇîî¢. ----------------------------- êΓá¬, óßÑ ¡áτá½«ß∞ ¡Ñ Γá¬ πª ñáó¡«. Ä¬«½« ú«ñá ¡áºáñ ∩ ßΓ∩¡π½ áασ¿ó ß ¿ßσ«ñ¡¿¬á¼¿ ¡Ñ¬«Ñú« τÑ½«óÑ¬á-ß¿Φ¡¿¬á. Å«ß¬«½∞¬π ¼¡Ñ «τÑ¡∞ ß¼ÑΦ¡« ß¼«ΓαÑΓ∞ ¡á τπª¿Ñ »«Γπú¿ »¿ßáΓ∞ ¡á ß¿ (ßá¼ ∩ ñ« φΓ«ú« ñ«σ«ªπ «τÑ¡∞ αÑñ¬«), ∩ αÑΦ¿½ »«ΓÑΦ¿Γ∞ ßÑí∩ ¿ ¡á φΓ«Γ αáº. Äñ¡á¬«, »αÑñßΓáó- ΓÑ ßÑíÑ ¼«Ñ πñ¿ó½Ñ¡¿Ñ, ¬«úñá PKUNZIP »α¿¡∩½ß∩ óδó«ñ¿Γ∞ ß««íΘÑ¡¿Ñ « »α«»πΘÑ¡¡δσ "ºá¬απτÑ¡¡δσ" Σá⌐½áσ. ìÑ ß¬α«ε, φΓ« íδ½« ñÑ½«¼ τÑßΓ¿ »α«úαá¼¼¿ßΓá-ÇßßÑ¼í½ÑαΘ¿¬á πΓÑαÑΓ∞ ¡«ß «ñ¡«¼π ¿º ß¿Φ¡¿¬«ó. ÆπΓ Γ« óßÑ ¿ ºáóÑαΓÑ... ùÑαÑº ñ¡∩ Γα¿ íδ½á ú«Γ«óá »Ñαóá∩ óÑαß¿∩ éß¬αδóáΓÑ½∩. Åα¿¡µ¿» ÑÑ ñÑ⌐ßΓó¿∩ «ß¡«óδóá½ß∩ ¡á Γ«¼, τΓ« PKZIP óÑαß¿⌐ ó»½«Γ∞ ñ« 1.2 ¿ß»«½∞- º«óá½ ºáαá¡ÑÑ óδτ¿ß½Ñ¡¡δÑ Γáí½¿µδ ñ½∩ ñÑαÑó∞Ñó ÿÑ¡¡«¡á-öá¡«. Åα¿ φΓ«¼ ßá¼¿ Γáí½¿µδ ¡Ñ ¼Ñ¡∩½¿ß∞ «Γ óÑαß¿¿ ¬ óÑαß¿¿. ÄßΓáóá½«ß∞ Γ«½∞¬« óδñαáΓ∞ φΓ¿ Γáí½¿µδ, ¿ ¡á»¿ßáΓ∞ »α«úαá¼¼π αáß¬«ñ¿α«ó¬¿ ¿ ßαáó¡Ñ¡¿∩ αáß¬«ñ¿α«óá¡¡δσ ñá¡¡δσ ¿ óδñαá¡¡δσ Γáí½¿µ. ùΓ« ¿ íδ½« ßñÑ½á¡«. ì« »Ñαóá∩ óÑαß¿∩ ßΓαáñá½á «Γ ¼¡«ªÑßΓóá ¡Ññ«ßΓáΓ¬«ó - ¡Ñ íδ½« ß«σ- αá¡Ñ¡¿∩ ß«ßΓ«∩¡¿∩ »«ß½Ñ ¡Ñ¬«Γ«α«ú« ¬«½¿τÑßΓá »ÑαÑí«α«ó ¿ ñ«ßΓáΓ«τ¡«Ñ ¬«½¿τÑßΓó« «Φ¿í«¬. Å«ß½Ñ Γ«ú«, ¬á¬ ¼«⌐ ñαπú ¿ ∩ πñá½¿½¿ φΓπ óÑαß¿ε, ÑÑ ¡Ñ «ßΓá½«ß∞ ¡¿úñÑ. ïÑΓ«¼ 93 «ñ¿¡ ¿º ¼«¿σ ñαπºÑ⌐ ß»¿ßá½ Φ¿α«¬« (¡Ñ)¿ºóÑßΓ¡πε »α«úαá¼- ¼π ZIPCRACK, ¡á»¿ßá¡¡πε «ñ¡¿¼ Γ«óáα¿ΘÑ¼ ¿º æÿÇ. ¥Γ« íδ½ αÑñ¬¿⌐ »α¿- ¼Ñα Γ«ú«, ¬á¬ ¡Ñ ¡áñ« »¿ßáΓ∞ »α«úαá¼¼δ. ä½¿¡á »áα«½∩ ñ« 5 íπ¬ó, »α∩- ¼«Ñ «í¡«ó½Ñ¡¿Ñ ¬½ετá, ¡¿º¬«Ñ íδßΓα«ñÑ⌐ßΓó¿Ñ, ¡ÑΓ »«ññÑαª¬¿ 386, ¡Ñπñ«í¡á∩, ó ¬«¡µÑ ¬«¡µ«ó. çáΓ« φΓ« »«ñΓ«½¬¡π½« ¼Ñ¡∩ ¡á ¡á»¿ßá¡¿Ñ óΓ«α«⌐ óÑαß¿¿ éß¬αδóáΓÑ½∩. éΓ«αá∩ óÑαß¿∩ éß¬αδóáΓÑ½∩ ß«ñÑαªá½á º¡áτ¿ΓÑ½∞¡«Ñ π½πτΦÑ¡¿Ñ »ÑαÑ- í«αá »áα«½Ñ⌐ - ßΓα«¬á »áα«½∩ «í¡«ó½∩½ß∩ ¡áτ¿¡á∩ ß ¬«¡µá, ¿ «í¡«ó- ½Ñ¡¿Ñ ¬½ετÑ⌐ »α«¿ºó«ñ¿½«ß∞ Γ«½∞¬« ñ½∩ ¿º¼Ñ¡¿óΦ¿σß∩ ß¿¼ó«½«ó. ¥Γ« ñáÑΓ óδ¿úαδΦ ó ß¬«α«ßΓ¿ «¬«½« 30% »α¿ ñ½¿¡Ñ »áα«½∩ ó 5 íπ¬ó. éºú½∩¡¿ΓÑ : àß½¿ len - ñ½¿¡á »áα«½∩, m - ¬«½¿τÑßΓó« íπ¬ó ó «ñ¡«⌐ »«º¿µ¿¿ »áα«½∩, n - óαÑ¼∩ «í¡«ó½Ñ¡¿∩ «ñ¡«ú« ¬½ετá, Γ« óαÑ¼∩ »α∩¼«ú« «í¡«ó- ½Ñ¡¿∩ ¬½ετÑ⌐ ¿ »αÑñóáα¿ΓÑ½∞¡«⌐ »α«óÑα¬¿ αáó¡« : (len)+10+1/256)*(n). 15,39 »α¿ len=5. ä½∩ «í¡«ó½Ñ¡¿∩ ß ¬«¡µá : ((1+(1/m)+1/(m^2))+10+1/256)*n. ¥Γá Σ«α¼π½á ¡Ñ ºáó¿ß¿Γ «Γ ñ½¿¡δ ! ü½áú«ñáα∩ φΓ«⌐ ΓÑσ¡¿¬Ñ ¡«óá∩ óÑαß¿∩ éß¬αδóáΓÑ½∩ »«¬áºá½á ß¬«α«ßΓ∞ «¬«½« 4500 »áα«½Ñ⌐ ó ßÑ¬π¡ñπ ¡á ¼áΦ¿¡Ñ AT 286/16 ! Äñ¡á¬«, ΓπΓ »«∩ó¿½ß∩ PKZIP 2.04. ì¿ «ñ¡á ¿º ñ«ßΓπ»¡δσ ¼¡Ñ »α«ú- αá¼¼ ¡Ñ ¼«ú½á ß ¡¿¼ ß»αáó¿Γ∞ß∩. Æ«úñá »α¿Φ½«ß∞ ºá¡∩Γ∞ß∩ ΓÑ¼, τΓ« ó «»¿ßá¡¿¿ PKZIP'á ¡áºδóáÑΓß∩ "æπΘÑßΓóÑ¡¡« ô½πτΦÑ¡¡«⌐ ÿ¿Σα«ó¬«⌐ äá¡- ¡δσ". Ä¬áºá½«ß∞ óßÑ "¡Ñ »α«ßΓ«, á «τÑ¡∞ »α«ßΓ«" - ó¼ÑßΓ« »α«óÑα¬¿ »« ßΓáαΦ¿¼ ß½«óá¼ ºáΘ¿Γ¡«ú« í½«¬á ¿ CRC Σá⌐½á, »α«¿ºó«ñ¿Γß∩ »α«- óÑα¬á Γ«½∞¬« »« íá⌐Γá¼ ! ìáß, τΓ«, ºá ¿ñ¿«Γ«ó ñÑαªáΓ ? Å«ß½Ñ Γ«ú«, ¬á¬ ∩ αáº«íαá½ß∩ ß ΓÑ¼ τΓ« ñÑ½áÑΓ PKZIP, ∩ ¡á»¿ßá½ φΓπ »α«úαá¼¼π - ZEXPL2. ÆÑ»Ñα∞ »α«óÑα¬á »áα«½∩ «ßπΘÑßΓó½∩ÑΓß∩ Γá¬¿¼ «íαáº«¼ : æΓα«¿Γß∩ ¼áßß¿ó ¿º ºáΘ¿Γ¡δσ í½«¬«ó ¿ »α«óÑα«τ¡δσ íá⌐Γ«ó, µ¿¬½ ñ½∩ ¬áªñ«ú« »áα«½∩ Äí¡«ó¿Γ∞ ¬½ετ¿ ¿ αáß¬«ñ¿α«óáΓ∞ ºáΘ¿Γ¡δ⌐ í½«¬, àß½¿ ¡Ñ »α«Φ½« »α«óÑα¬π Γ« «í«αóáΓ∞ µ¿¬½ ¿ »ÑαÑ⌐Γ¿ ¬ ñαπú«¼π »áα«½ε, ÅÑαÑ⌐Γ¿ ¬ ß½ÑñπεΘÑ¼π í½«¬π, ¬«¡Ñµ µ¿¬½á àß½¿ »α«⌐ñÑ¡δ óßÑ í½«¬¿ Γ« ¼δ »«½πτ¿½¿ »αáó¿½∞¡δ⌐ »áα«½∞ Æá¬ ¬á¬, 3 ¬½ετá ßó«í«ñ¡« »«¼ÑΘáεΓß∩ ó αÑú¿ßΓαáσ 386 ¿ óδΦÑ »α«- µÑßß«α«ó, Γ« í«½∞Φ¿¡ßΓó« µ¿¬½«ó ñÑ¬«ñ¿α«óá¡¿∩ ¿ «í¡«ó½Ñ¡¿∩ ¬½ετÑ⌐ óδ»«½¡Ñ¡δ ß ¿ß»«½∞º«óá¡¿Ñ¼ αÑú¿ßΓα«óδσ »ÑαÑ¼Ñ¡¡δσ. ì¿ªÑ ∩ »α¿óÑ½ αÑºπ½∞ΓáΓδ »α«ú«¡«ó ¼«Ñ⌐ »α«úαá¼¼δ ¡á ¼«Ñ⌐ AT 386SX/20 ¿ AT 486DX/50. Æ¿» ¼áΦ¿¡δ ìÑ«»Γ¿¼. óÑαß¿∩ ÄΓ¿¼¿º. óÑαß¿∩ (»áα«½Ñ⌐/ßÑ¬) (»áα«½Ñ⌐/ßÑ¬) ------------ ----------------- ---------------- 386SX 7300 8700 486DX 21200 25600 Å«½πτ¿Γ∞ αÑºπ½∞ΓáΓδ ¡Ñ ºá 10, á ºá 8 ñ¡Ñ⌐ - ¡Ñ»½«σ«, á ? ƒ ñπ¼áε, ¼¡Ñ ¼«ª¡« σóáßΓáΓß∩ ß¬«α«ßΓ∞ε ¼«Ñ⌐ »α«úαá¼¼δ. ÄâÉÇìêùàìêƒ. -------------- éìêîÇìêà !!!!!!!!!!!!!! ì¿ªÑß½ÑñπεΘ¿Ñ áíºáµδ éàæ£îÇ éÇåì¢ !!!!!! üπñ∞ΓÑ ñ«íαδ »α«τ¿ΓáΓ∞ ¿σ ó¡¿¼áΓÑ½∞¡« !! ¥Γá »α«úαá¼¼á (ZEXPL2) »αÑñ¡áº¡áτá½áß∞ ñ½∩ óß¬αδΓ¿∩ áασ¿óá π»á- ¬«óá¡¡«ú« ß «ñ¡¿¼ »áα«½Ñ¼ ¡á óßÑ Σá⌐½δ. Å«φΓ«¼π ñ½∩ óß¬αδΓ¿∩ áα- σ¿ó«ó ß αáº¡δ¼¿ »áα«½∩¼¿ ¡Ñ«íσ«ñ¿¼« »α¿¼Ñ¡¿Γ∞ »α«úαá¼¼π, á¡á½«ú¿τ- ¡πε EXTRHDR, ¡« ñ½∩ ¿ºó½ÑτÑ¡¿∩ Σá⌐½«ó ß «ñ¿¡á¬«óδ¼ »áα«½Ñ¼. (ê½¿ »¿Φ¿ΓÑ ßó«⌐ ß«íßΓóÑ¡¡δ⌐ óß¬αδóáΓÑ½∞). Åα«úαá¼¼á ß«ºñáóá½áß∞ ñ½∩ óß¬αδΓ¿∩ »áα«½∩ PKZIP óÑαß¿⌐ ó»½«Γ∞ ñ« 2.04, »«φΓ«¼π ¡ÑΓ ¡¿¬á¬¿σ úáαá¡Γ¿⌐, τΓ« «¡á íπñÑΓ αáí«ΓáΓ∞ ß »«ß½Ñ- ñπεΘ¿¼¿ óÑαß¿∩¼¿ PKZIP'á. èÇè êæÅÄï£çÄéÇÆ£ ZEXPL2 ? --------------------------- çá»πßΓ¿ΓÑ EXTRHDR ß »áαá¼ÑΓα«¼ - ¿¼Ñ¡Ñ¼ áασ¿óá. Ä¡ ¿ºó½ÑτÑΓ ¿¡- Σ«α¼áµ¿ε, ¡Ñ«íσ«ñ¿¼πε ñ½∩ ZEXLP2 ó Σá⌐½ ENCRHDRS.DAT. äá½ÑÑ ¡áñ« ß«ºñáΓ∞ Σá⌐½ ß ¡áí«α«¼ ß¿¼ó«½«ó »áα«½∩ - AVAIL.CHR. é φΓ«¼ Σá⌐½Ñ ¡áñ« π¬áºáΓ∞ óßÑ ß¿¼ó«½δ, ¬«Γ«αδÑ éδ «ª¿ñáÑΓÑ óßΓαÑΓ¿Γ∞ ó »áα«½Ñ. éìêîÇìêà ! ìà ìÇäÄ äÄüÇéïƒÆ£ é ¥ÆÄÆ öÇëï æêîÄï¢ éÄçéÉÇÆÇ èÇÉàÆèê, ÅàÉàéÄäÇ æÆÉÄèê ê èÄìûÇ öÇëïÇ !!! ¥Γ¿ ß¿¼ó«½δ óα∩ñ-½¿ óσ«ñ∩Γ ó ßΓα«¬π »áα«½∩. ÆÑ»Ñα∞ ¼«ª¡« ºá»πß¬áΓ∞ ZEXPL2 ó ¬áΓá½«úÑ ß Σá⌐½á¼¿ ENCRHDRS.DAT ¿ AVAIL.CHR. Å«ß½Ñ Γ«ú«, ¬á¬ ZEXPL2 ¡áΦÑ½ »áα«½∞, »α«ΦÑñΦ¿⌐ ΓÑßΓδ ß« óßÑ¼¿ Σá⌐½á¼¿, Γ« «¡ »«¬áºδóáÑΓ φΓ«Γ »áα«½∞, í¿í¿¬áÑΓ, óδñáÑΓ ß««íΘÑ¡¿Ñ « ¡á⌐ñÑ¡¡«¼ »áα«½Ñ ¿ ñ«íáó½∩ÑΓ Ñú« ó Σá⌐½ PASSWORD.TXT. Ç πª τΓ« éδ ß« óßÑ¼ φΓ¿¼ íπñÑΓÑ ñÑ½áΓ∞ - αÑΦá⌐ΓÑ ßá¼¿ ! ƒ ½¿τ¡« ß«óÑΓπε »Ñα¿«ñ¿- τÑß¬¿ »α«ß¼áΓα¿óáΓ∞ Σá⌐½ PASSWORD.TXT ¿ »α«í«óáΓ∞ ¡«óδÑ »áα«½¿. ìàèÄÆÄÉ¢à Æàòìêùàæèêà çÇîàùÇìêƒ. ---------------------------------- ö«α¼áΓ Σá⌐½á ENCRHDRS.DAT : æ¼ÑΘÑ¡¿Ñ ä½¿¡á ç¡áτÑ¡¿Ñ -------- ----- ---------------- 0 12d ü½«¬ ºáΘ¿Γδ «Γ óº½«¼á π»á¬«óá¡¡«ú« Σá⌐½á (»ÑαóδÑ 12 íá⌐Γ »«ß½Ñ ¿¼Ñ¡¿ Σá⌐½á) 12d 1d æΓáαΦ¿⌐ íá⌐Γ CRC32 Σá⌐½á 13d 3d éδαáó¡¿óá¡¿Ñ - ¡Ñ ¿ß»«½∞ºπÑΓß∩. àΘÑ ¡Ñ¼¡«ú« « Σá⌐½Ñ ¡áí«αá ß¿¼ó«½«ó : Å«ß¬«½∞¬π »ÑαÑí«α »áα«½Ñ⌐ ¿ñÑΓ ó ß½ÑñπεΘÑ¼ »«α∩ñ¬Ñ : aaa,aab,aac,...,aba,abb,abc ¿ Γ.ñ., Γ« ªÑ½áΓÑ½∞¡« «ßΓáó¿Γ∞ Γ«½∞¬« ßá¼δÑ óÑα«∩Γ¡δÑ ß¿¼ó«½δ, »«ß¬«½∞¬π «ñ¿¡ ½¿Φ¡¿⌐ ß¿¼ó«½ ¼«ªÑΓ ñ«íáó¿Γ∞ ¡Ñß¬«½∞¬« τáß«ó αáí«Γδ »α«úαá¼¼δ ¡á í«½∞Φ¿σ »áα«½∩σ. éÑα«∩Γ¡«ßΓ∞ Γ«ú«, τΓ« ¡á⌐ñÑ¡¡δ⌐ »áα«½∞ »αáó¿½Ñ¡, φ¬ß»«¡Ñ¡µ¿á½∞¡« »α«»«αµ¿«¡á½∞¡á ¬«½¿τÑßΓóπ Σá⌐½«ó, óδñαá¡¡δσ ¿º áασ¿óá. ìá»α¿¼Ñα, «ñ¿¡ Σá⌐½ ñáÑΓ óÑα«∩Γ¡«ßΓ∞ «Φ¿í¬¿ 1/256 (0,39%), ñóá Σá⌐½á - 1/65536 (0,0015%) , Γα¿ Σá⌐½á - 1/16777216 (0,00000596%). äóÑ¡áñµáΓ∞ Σá⌐½«ó ñáεΓ »αá¬Γ¿τÑß¬¿ »«½¡πε πóÑαÑ¡¡«ßΓ∞ ó »αáó¿½∞¡«ßΓ¿ »áα«½∩. ¥Γ« óδóÑ- ñÑ¡« ¿º αáº¼Ñαá úÑ¡ÑαáΓ«αá ß½πτá⌐¡δσ τ¿ßÑ½, ¿ß»«½∞ºπÑ¼«ú« PKZIP'«¼. ƒ âÄéÄÉ₧ "æÅÇæêüÄ !" ... -------------------------- ä¼¿Γα¿ε ïÑ¼Ñσ«óπ ¿ ïÑ«»«½∞ñπ :) èáúá¡«óπ - á »α«ßΓ« Γá¬ !, É¿¡áΓπ æáñαÑΓñ¿¡«óπ (Dummy Animator|Sludge Vohaul) - ºá »«¼«Θ∞ »α¿ ¡á»¿ßá¡¿¿ á¡ú½¿⌐ß¬«ú« ΓÑ¬ßΓá «»¿ßá¡¿∩ ¿ ß«óÑΓδ »« »α«úαá¼¼¿α«óá¡¿ε, Ç½Ñ¬ßÑε ì¿¬«½áÑóπ ¿ æÑαúÑε üÑα¬«ó¿τπ - ºá ¿σ »«¼«Θ∞ ó «α¿Ñ¡Γáµ¿¿ ó ½áí¿α¿¡ΓÑ öêäÄ, î«¿¼ α«ñ¿ΓÑ½∩¼ - ºñÑß∞ ¡Ññ«ßΓáΓ«τ¡« »α«ßΓ« "æ»áß¿í« !", ¡« ∩ ßΓáαδ⌐ ß«½ñáΓ, ¿ ¡Ñ º¡áε ß½«ó « ½εíó¿ ..., î«Ñ¼π íαáΓπ Æ¿¼¬Ñ - «¡ »α«ßΓ« σ«α«Φ¿⌐ »áαÑ¡∞ - αáºóÑ ¼á½« ?, ö¿½π èáµπ - ºá ñ«¬π¼Ñ¡Γáµ¿ε »« PKZIP'á¼ αá¡¡¿σ óÑαß¿⌐, ¿ ∩ ¡áñÑεß∞, τΓ« ß½ÑñπεΘ¿Ñ óÑαß¿¿ PKZIP'á íπñπΓ ß¡áíªÑ¡δ Ñε, ê óßÑ¼, óßÑ¼, óßÑ¼ «ßΓá½∞¡δ¼, ¬«ú« ∩ (¡Ñ)º¡áε ! éæàî éÇî, äÉôç£ƒ ! æ ¡á¿½πτΦ¿¼¿ »«ªÑ½á¡¿∩¼¿, æÑαúÑ⌐ Ç½Ñ¬ßá¡ñα«ó¿τ çÑΣ¿α«ó, äÑ¬áíα∞ 1993. P.S. ò«τ¿ΓÑ τΓ«-Γ« ÑΘÑ ? ê½¿ ¡áΦ½¿ ñδα¬¿ ? Å¿Φ¿ΓÑ : FIDO : 2:5020/203.11 117465, É«ßß¿∩, î«ß¬óá, π½.âÑ¡Ñαá½á Æε½Ñ¡Ñóá, 17, 69, æÑαúÑε Ç½Ñ¬ßá¡ñα«ó¿τπ çÑΣ¿α«óπ. P.P.S. èßΓáΓ¿, »áα«½∞ π ARJ ¼«ª¡« óß¬αδΓ∞ úñÑ-Γ« ºá ¡ÑñÑ½ε ó σπñΦÑ¼ ß½π- τáÑ. ÆÑ ñóá αáºá, ¬«úñá ∩ óß¬αδóá½ »áα«½∞ ARJ, ∩ ß»αáó¿½ß∩ ºá 2 τáßá. P.P.P.S. æÑ⌐τáß ∩ »¿Φπ « Γ«¼, τΓ« ¼«∩ »α«úαá¼¼á πß»ÑΦ¡« óδ»«½¡¿½á »Ñαó«Ñ ºáñá¡¿Ñ - »«¬á ∩ óδσ«ñ¿½ «Γñ«σ¡πΓ∞, «¡á óß¬αδ½á »áα«½∞ ß ¿ßσ«ñ¡¿¬«ó ÑΘÑ «ñ¡«ú« ß¿Φ¡¿¬á. çá 4(τÑΓδαÑ) ¼¿¡πΓδ !