{"id":33907,"date":"2019-10-31T21:55:20","date_gmt":"2019-10-31T18:55:20","guid":{"rendered":"https:\/\/prohoster.info\/blog\/john-the-ripper-1-9-0-jumbo-1-s-podderzhkoj-fpga\/"},"modified":"2019-10-31T21:55:20","modified_gmt":"2019-10-31T18:55:20","slug":"john-the-ripper-1-9-0-jumbo-1-s-podderzhkoj-fpga","status":"publish","type":"post","link":"https:\/\/prohoster.info\/sk\/blog\/news\/john-the-ripper-1-9-0-jumbo-1-s-podderzhkoj-fpga","title":{"rendered":"John the Ripper 1.9.0-jumbo-1 s podporou FPGA","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

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Vydan\u00e1<\/a> nov\u00e1 verzia najstar\u0161ieho podporovan\u00e9ho programu na rozl\u00fa\u0161tenie hesiel John the Ripper 1.9.0-jumbo-1. (Projekt sa vyv\u00edja od roku 1996.) Na str\u00e1nke projektu<\/a> s\u00fa dostupn\u00e9 na stiahnutie zdrojov\u00e9 s\u00fabory, ako aj hotov\u00e9 zostavy pre Windows.<\/p>\n

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Upozor\u0148uje sa, \u017ee od vydania verzie 1.8.0-jumbo-1 uplynulo 4,5 roka, po\u010das ktor\u00e9ho bolo vykonan\u00fdch viac ako 6000 zmien (git commits) od viac ako 80 v\u00fdvoj\u00e1rov. Po\u010das tohto obdobia v\u00fdvoj\u00e1ri odpor\u00fa\u010dali pou\u017e\u00edva\u0165 aktu\u00e1lnu ed\u00edciu z GitHubu<\/a>, ktor\u00e9ho stav bol udr\u017eiavan\u00fd stabiln\u00fd napriek vykonan\u00fdm zmen\u00e1m v\u010faka nepretr\u017eitej integr\u00e1cie<\/a>, ktor\u00e1 zah\u0155\u0148a predbe\u017en\u00fa kontrolu ka\u017ed\u00e9ho zmeny (pull request) na mnoh\u00fdch platform\u00e1ch. Vlastnos\u0165ou novej verzie je podpora FPGA (programovate\u013en\u00e9 logick\u00e9 obvody) okrem CPU, GPU a Xeon Phi.<\/p>\n

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\nPre karty ZTEX 1.15y<\/a>, vr\u00e1tane 4 \u010dipov FPGA, ktor\u00e9 sa p\u00f4vodne pou\u017e\u00edvali v\u00e4\u010d\u0161inou na \u0165a\u017ebu Bitcoin, teraz implementovan\u00fdch v 7 typoch hashov hesiel: bcrypt, klasick\u00fd descrypt (vr\u00e1tane bigcrypt), sha512crypt, sha256crypt, md5crypt (vr\u00e1tane Apache apr1 a AIX smd5), Drupal7 a phpass (pou\u017e\u00edvan\u00fd najm\u00e4 vo WordPress). Niektor\u00e9 z nich s\u00fa implementovan\u00e9 na FPGA po prv\u00fd raz. Pre bcrypt, dosiahnut\u00fd v\u00fdkon je pribli\u017ene ~119k c\/s pri 2^5 iter\u00e1ci\u00e1ch («$2b$05») s odhadovanou spotrebou okolo 27 wattov, \u010do v\u00fdrazne prevy\u0161uje v\u00fdsledky pre najnov\u0161ie GPU na dosku, na cenu zariadenia a na watt. Tie\u017e s\u00fa podporovan\u00e9 klastre<\/a> z dosiek tohto typu, \u010do bolo overen\u00e9 a\u017e pre 16 dosiek (64 FPGA), ovl\u00e1dan\u00fdch z jedn\u00e9ho Raspberry Pi 2. Podporovan\u00e1 je be\u017en\u00e1 funk\u010dnos\u0165 John the Ripper, vr\u00e1tane v\u0161etk\u00fdch re\u017eimov l\u00e1mania hesiel a s\u00fa\u010dasn\u00e9ho na\u010d\u00edtania ve\u013ek\u00e9ho mno\u017estva hashov. Pre zr\u00fdchlenie pr\u00e1ce bola implementovan\u00e1 aplik\u00e1cia masky (re\u017eim \"--mask\", vr\u00e1tane kombin\u00e1cie s in\u00fdmi re\u017eimami) a porovn\u00e1vanie vypo\u010d\u00edtan\u00fdch hashov s na\u010d\u00edtan\u00fdmi na strane FPGA. Z h\u013eadiska implement\u00e1cie, v mnoh\u00fdch dizajnoch (napr\u00edklad pre sha512crypt a Drupal7<\/a>) pou\u017eit\u00e9 bloky pozost\u00e1vaj\u00face z viacvl\u00e1knov\u00fdch procesorov\u00fdch jadier (soft CPU cores), ktor\u00e9 komunikuj\u00fa s kryptografick\u00fdmi jadrami. V\u00fdvoj tejto funkcionality viedol Denis Burikin v koordin\u00e1cii s \u010fal\u0161\u00edmi v\u00fdvoj\u00e1rmi jumbo.<\/p>\n

\u010eal\u0161ie d\u00f4le\u017eit\u00e9 zmeny:<\/p>\n