{"id":34823,"date":"2019-10-31T22:00:35","date_gmt":"2019-10-31T19:00:35","guid":{"rendered":"https:\/\/prohoster.info\/blog\/ispolzovanie-sluchajnogo-orakula-na-primere-loterei\/"},"modified":"2019-10-31T22:00:35","modified_gmt":"2019-10-31T19:00:35","slug":"ispolzovanie-sluchajnogo-orakula-na-primere-loterei","status":"publish","type":"post","link":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/ispolzovanie-sluchajnogo-orakula-na-primere-loterei","title":{"rendered":"Juhusliku oraakli kasutamine loterii n\u00e4itel","gt_translate_keys":[{"key":"rendered","format":"text"}]},"content":{"rendered":"

\u00dchel hommikul j\u00e4i mulle silma artikkel kontrollitavast juhuslike arvude generaatorist<\/a><\/noindex> blockchain Waves platvormil. <\/p>\n

\u00dcldine pilt oli arusaadav, kuid konkreetne teostus j\u00e4i segaseks. Mis need koodid, allkirjad on, kuhu, miks?<\/p>\n

P\u00e4rast mitmeid konsultatsioone orakli autoriga \u00f5nnestus mul \u00fchendada loosimise loogika (teostatud PHP-s) juhusliku arvu saamise algoritmiga.
\n<\/a><\/noindex><\/p>\n

    \n
  1. Turniiri\/vooru alguses k\u00fcsime oraklilt esimest koodiosa (R-kood).\n

    Sel hetkel pole teavet m\u00e4ngijate arvu, auhindade arvu, auhindade suuruse ega loterii olemasolu kohta. Oraakel v\u00e4ljastab tehingu kaudu isikliku juhusliku koodi, mida saab kasutada ainult \u00fcks kord ja ainult selle isiku poolt, kes seda k\u00fcsis. \u00dcks huvitav detail: R-koodi saab ette osta (m\u00f5eldes tehingu taotlemise kulu + orakli kompenseerimise kulu vastustehingu eest, see summa on praeguse kursiga umbes $0.015, kuid kood ise antakse tasuta) mitme eksemplari kaupa, et ei peaks hiljem vastustehingu ootele j\u00e4\u00e4ma. Olen teinud v\u00e4ikese regulaarne t\u00e4iendava puhvri andmebaasis.<\/li>\n

  2. Turni kestab tavaliselt 60 plokkides Waves platvormi plokiahelas, mis praegu kestab enam-v\u00e4hem 1 tund. Turniiri peetakse toimunuks ja suletuks, kui p\u00e4rast 60 plokki on selles v\u00e4hemalt kaks piletit, vastasel juhul pikendatakse turniiri aktiivsuse aega j\u00e4rgmiste 60 ploki v\u00f5rra.<\/li>\n
  3. P\u00e4rast turniiri sulgemist genereerime ja saadame tehingu andmed (mille eest maksame samuti tasu ligikaudu $0.005), vajadusel mitu, kus on fikseeritud k\u00f5ik loosimise tingimused ja j\u00e4rjestatud m\u00e4ngijate (piletite) loetelu, kust peame valima v\u00f5itjad.<\/li>\n
  4. Sellel etapil on meil juba olemas esimene osa koodist (R-kood) pluss tehingu ID (TXID). Saadame need allkirjastamiseks oraaklile kujul \u00fchendamises (R-kood + TXID), maksame taas tasu + h\u00fcvitise. Oraakel kontrollib saadud andmeid unikaalsuse ja kuuluvuse osas ning vastuseks saadab meile teise osa koodist (S-kood) sha256 formaadis, mis on ka juhuslike numbrite generaatori l\u00e4htepunkt.<\/li>\n
  5. Kuna saada juhuslik number, mis n\u00e4itab v\u00f5itmise pileti j\u00e4rjestusnumbrit, muundame S-koodi binaarsetest andmetest sha256 kuueheksandiks (HEX) esituseks. Seej\u00e4rel saame HEX-stringist arvu. Saame \u00fclej\u00e4\u00e4gi jagamisest saadud numbrist piletite koguarvuga (all_tickets) ja lisame tulemustele 1 (et saada number 1 kuni all_tickets). L\u00f5puks saame v\u00f5itja j\u00e4rjestusnumbri.<\/li>\n
  6. Kui loosimise tingimustes on mitu v\u00f5itjat, kordame eelnevaid toiminguid sama palju kordi kui on auhinnakohti. Igal korral eemaldame v\u00f5itnud pileti nimekirjast ja v\u00e4hendame all_tickets v\u00e4\u00e4rtust 1 v\u00f5rra, asendades S-koodi eelnevalt saadud numbriga.<\/li>\n<\/ol>\n

    \nVaatame konkreetselt t\u00f5elist n\u00e4idet, turniir nr 119:<\/p>\n

    Kokku 7 piletit (all_tickets)
    \nPileti hind 50 m\u00fcnti (Bet)
    \nM\u00e4ngutasu 10% (Fee)<\/p>\n

    Loterii tingimuste kohaselt l\u00e4heb 30% auhindadele, st antud juhul peavad 2 piletit saama auhinda, mille suurus arvutatakse valemiga (Bet * all_tickets - Fee) \/ 2.<\/p>\n

    1. Saime R-koodi: RdbAiAhKhveAtR4eyTKq75noMxdcEoxbE6BvojJjM13VE<\/a><\/noindex><\/p>\n

    2. P\u00e4rast turniiri l\u00f5ppu on meil piletite nimekiri paaride kujul: number + aadress (rahakoti aadress, millega osalemise eest tasuti). V\u00e4\u00e4rib m\u00e4rkimist, et aadressid v\u00f5ivad korduda, mis t\u00e4hendab, et \u00fcks osaleja on ostnud mitu piletit \u00fchele turniirile, mis ei ole reeglitega keelatud.<\/p>\n

    Saadetud tehingu kuup\u00e4ev: 82JTMzhHM5xEA2fQ9Qscd5QAJU3DAd8nShLjdVHTer5S<\/a><\/noindex><\/p>\n

    3. Taotlesime S-koodi: FTF3uRyaa4F2uAyD6z5a3CNbTXbQLc7fSR6CFNVjgZYV<\/a><\/noindex> kommentaariga (R-kood + TXID):
    \nRdbAiAhKhveAtR4eyTKq75noMxdcEoxbE6BvojJjM13VE 82JTMzhHM5xEA2fQ9Qscd5QAJU3DAd8nShLjdVHTer5S<\/p>\n

    4. Saime S-koodi: Ri89jHB4UXZDXY6gT1m4LBDXGMTaYzHozMk4nxiuqVXdC<\/a><\/noindex><\/p>\n

    5. M\u00e4\u00e4rasime v\u00f5itjad.<\/p>\n

    6. Saadetud v\u00e4ljamaksed<\/a><\/noindex><\/p>\n

    Tulemuseks on meil plokiahelas samm-sammult fikseerimise protsess auhindade loosimisega, mille kontrollimine on v\u00f5imalik igal ajal. Korraldaja poolt tulemusi v\u00f5ltsida on praktiliselt v\u00f5imatu, v\u00e4hemalt ei saa seda enam m\u00e4rkamatult teha.<\/p>\n

    m\u00e4\u00e4rake v\u00f5itja \u2116 1\n\nK\u00f5ik_piletid:\nIndeks: 1 Pilet:139\nIndeks: 2 Pilet:141\nIndeks: 3 Pilet:143\nIndeks: 4 Pilet:145\nIndeks: 5 Pilet:147\nIndeks: 6 Pilet:149\nIndeks: 7 Pilet:151\n\n1. binaarne -> kuheksand - (bin2hex(sha256(S-kood))): Ri89jHB4UXZDXY6gT1m4LBDXGMTaYzHozMk4nxiuqVXdC -> 0xdaf5802953dcb27f89972e38e8900b898733f6a613e6e1c6c5491362c1832596\n\n2. kuheksand -> gmp number: 0xdaf5802953dcb27f89972e38e8900b898733f6a613e6e1c6c5491362c1832596 -> 99037963059744689166154019807924045947962565922868104113173478160267437352342\n\n3. gmp -> modulo (mod=7): 99037963059744689166154019807924045947962565922868104113173478160267437352342 -> 4\n\n4. modulo -> pilet: 4 -> 145\n\nm\u00e4\u00e4rake v\u00f5itja \u2116 2\n\nK\u00f5ik_piletid:\n\nIndeks: 1 Pilet:139\nIndeks: 2 Pilet:141\nIndeks: 3 Pilet:143\nIndeks: 4 Pilet:147\nIndeks: 5 Pilet:149\nIndeks: 6 Pilet:151\n\n1. binaarne -> kuheksand - (bin2hex(sha256(eelmise kuheksandi))): daf5802953dcb27f89972e38e8900b898733f6a613e6e1c6c5491362c1832596 -> 0x9560e77525e9ea2db92cdb8484dc52046ccafac7c719b8859ff55f0eb92834a0\n2. kuheksand -> gmp number: 0x9560e77525e9ea2db92cdb8484dc52046ccafac7c719b8859ff55f0eb92834a0 -> 67565829218838067182838043983962684143266386786567427968312120473742580659360\n3. gmp -> modulo (mod=6): 67565829218838067182838043983962684143266386786567427968312120473742580659360 -> 1\n4. modulo -> pilet: 1 -> 139\n\nL\u00f5pp.<\/code><\/pre>\n
    Allikas: habr.com<\/a><\/p>","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"excerpt":{"rendered":"
    \u041a\u0430\u043a-\u0442\u043e \u0443\u0442\u0440\u043e\u043c \u043d\u0430 \u0433\u043b\u0430\u0437\u0430 \u043f\u043e\u043f\u0430\u043b\u0430\u0441\u044c \u0441\u0442\u0430\u0442\u044c\u044f \u043e \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u043c\u043e\u043c \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0435 \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u044b\u0445 \u0447\u0438\u0441\u0435\u043b \u043d\u0430 \u0431\u043b\u043e\u043a\u0447\u0435\u0439\u043d\u0435 Waves platform. \u041e\u0431\u0449\u0430\u044f \u043a\u0430\u0440\u0442\u0438\u043d\u0430 \u0431\u044b\u043b\u0430 \u043f\u043e\u043d\u044f\u0442\u043d\u0430, \u0430 \u0432\u043e\u0442 \u0441\u043f\u043e\u0441\u043e\u0431 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u2014 \u043d\u0435\u0442. \u041a\u0430\u043a\u0438\u0435-\u0442\u043e \u043a\u043e\u0434\u044b, \u043f\u043e\u0434\u043f\u0438\u0441\u0438, \u0447\u0442\u043e, \u043a\u0443\u0434\u0430, \u0437\u0430\u0447\u0435\u043c? \u041d\u0435\u0441\u043a\u043e\u043b\u044c\u043a\u043e \u043a\u043e\u043d\u0441\u0443\u043b\u044c\u0442\u0430\u0446\u0438\u0439 \u0443 \u0430\u0432\u0442\u043e\u0440\u0430 \u043e\u0440\u0430\u043a\u0443\u043b\u0430, \u0432 \u0440\u0435\u0437\u0443\u043b\u044c\u0442\u0430\u0442\u0435 \u043f\u043e\u043b\u0443\u0447\u0438\u043b\u043e\u0441\u044c \u043e\u0431\u044a\u0435\u0434\u0438\u043d\u0438\u0442\u044c \u043b\u043e\u0433\u0438\u043a\u0443 \u0440\u043e\u0437\u044b\u0433\u0440\u044b\u0448\u0430 (\u0440\u0435\u0430\u043b\u0438\u0437\u043e\u0432\u0430\u043d\u0430 \u043d\u0430 PHP) \u0441 \u0430\u043b\u0433\u043e\u0440\u0438\u0442\u043c\u043e\u043c \u043f\u043e\u043b\u0443\u0447\u0435\u043d\u0438\u044f \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u043e\u0433\u043e \u0447\u0438\u0441\u043b\u0430. \u0412 \u043c\u043e\u043c\u0435\u043d\u0442 \u0441\u0442\u0430\u0440\u0442\u0430 \u0442\u0443\u0440\u043d\u0438\u0440\u0430\/\u0440\u0430\u0443\u043d\u0434\u0430 […]<\/p>\n","protected":false,"gt_translate_keys":[{"key":"rendered","format":"html"}]},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[688],"tags":[],"class_list":["post-34823","post","type-post","status-publish","format-standard","hentry","category-administrirovanie"],"aioseo_notices":[],"aioseo_head":"\n\t\t\n\t\n\t\n\t\n\t\n\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\t\t\n\n","aioseo_head_json":{"title":"\ud83e\udd47Juhusliku orakli kasutamine loterii n\u00e4itel | ProHoster","description":"\u00dchel hommikul j\u00e4i mulle silma artikkel Waves platvormi p\u00f5hjal loodud juhuslike numbrite generaatorist. \u00dcldine pilt oli selge, aga konkreetne teostus \u2013 mitte. Mingid koodid, allkirjad, mis, kuhu, milleks? P\u00e4rast mitmeid konsultatsioone autori orakliga suutsime l\u00f5puks \u00fchendada loosimise loogika (tehtud PHP-s) juhuslike numbrite algoritmiga. Turniiri\/vooru alustamise hetkel.","canonical_url":"https:\/\/prohoster.info\/et\/blog\/administrirovanie\/ispolzovanie-sluchajnogo-orakula-na-primere-loterei","robots":"max-image-preview:large","keywords":"","webmasterTools":{"miscellaneous":""},"schema":null,"og:locale":"et_EE","og:site_name":"ProHoster | \u041a\u0443\u043f\u0438\u0442\u044c \u043d\u0430\u0434\u0435\u0436\u043d\u044b\u0439 \u0445\u043e\u0441\u0442\u0438\u043d\u0433 \u0434\u043b\u044f \u0441\u0430\u0439\u0442\u043e\u0432 \u0441 \u0437\u0430\u0449\u0438\u0442\u043e\u0439 \u043e\u0442 DDoS, VPS VDS \u0441\u0435\u0440\u0432\u0435\u0440\u044b","og:type":"article","og:title":"\ud83e\udd47\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u043e\u0433\u043e \u043e\u0440\u0430\u043a\u0443\u043b\u0430 \u043d\u0430 \u043f\u0440\u0438\u043c\u0435\u0440\u0435 \u043b\u043e\u0442\u0435\u0440\u0435\u0438 | ProHoster","og:description":"\u041a\u0430\u043a-\u0442\u043e \u0443\u0442\u0440\u043e\u043c \u043d\u0430 \u0433\u043b\u0430\u0437\u0430 \u043f\u043e\u043f\u0430\u043b\u0430\u0441\u044c \u0441\u0442\u0430\u0442\u044c\u044f \u043e \u043f\u0440\u043e\u0432\u0435\u0440\u044f\u0435\u043c\u043e\u043c \u0433\u0435\u043d\u0435\u0440\u0430\u0442\u043e\u0440\u0435 \u0441\u043b\u0443\u0447\u0430\u0439\u043d\u044b\u0445 \u0447\u0438\u0441\u0435\u043b \u043d\u0430 \u0431\u043b\u043e\u043a\u0447\u0435\u0439\u043d\u0435 Waves platform. \u041e\u0431\u0449\u0430\u044f \u043a\u0430\u0440\u0442\u0438\u043d\u0430 \u0431\u044b\u043b\u0430 \u043f\u043e\u043d\u044f\u0442\u043d\u0430, \u0430 \u0432\u043e\u0442 \u0441\u043f\u043e\u0441\u043e\u0431 \u043a\u043e\u043d\u043a\u0440\u0435\u0442\u043d\u043e\u0439 \u0440\u0435\u0430\u043b\u0438\u0437\u0430\u0446\u0438\u0438 \u2014 \u043d\u0435\u0442. \u041a\u0430\u043a\u0438\u0435-\u0442\u043e \u043a\u043e\u0434\u044b, \u043f\u043e\u0434\u043f\u0438\u0441\u0438, \u0447\u0442\u043e, \u043a\u0443\u0434\u0430, \u0437\u0430\u0447\u0435\u043c? 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