{"id":18885,"date":"2025-04-22T13:30:13","date_gmt":"2025-04-22T10:30:13","guid":{"rendered":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/"},"modified":"2025-04-22T13:30:13","modified_gmt":"2025-04-22T10:30:13","slug":"node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi","status":"publish","type":"post","link":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/","title":{"rendered":"Node.js&#8217;de Zamanlama Sald\u0131r\u0131lar\u0131: Uygulamalar\u0131n\u0131z\u0131 Koruma Rehberi"},"content":{"rendered":"<p><body><\/p>\n<p>Node.js&#8217;de Zamanlama Sald\u0131r\u0131lar\u0131: Uygulamalar\u0131n\u0131z\u0131 Koruma Rehberi<\/p>\n<p>Merhaba! Ben Fatih Soysal ve bug\u00fcn Node.js uygulamalar\u0131nda gizli bir tehdit olan zamanlama sald\u0131r\u0131lar\u0131n\u0131 (timing attacks) ele alaca\u011f\u0131z.  Bu sald\u0131r\u0131lar, bir sistemin i\u015flem s\u00fcrelerine dayanarak hassas bilgileri ortaya \u00e7\u0131karmay\u0131 ama\u00e7layan incelikli g\u00fcvenlik a\u00e7\u0131klar\u0131d\u0131r.  \u00d6rne\u011fin, bir parola do\u011frulama i\u015fleminin s\u00fcresi, paroladaki karakter say\u0131s\u0131yla do\u011fru orant\u0131l\u0131 olabilir.  Bu farklar,  sald\u0131rganlar i\u00e7in \u00f6nemli bilgiler sunabilir.  Bu nedenle, Node.js uygulamalar\u0131n\u0131z\u0131 bu sald\u0131r\u0131lardan korumak son derece \u00f6nemlidir.<\/p>\n<h2>Zamanlama Sald\u0131r\u0131lar\u0131 Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h2>\n<p>Zamanlama sald\u0131r\u0131lar\u0131nda temel fikir, sistemin yan\u0131t s\u00fcrelerini \u00f6l\u00e7mektir.  Sald\u0131rgan, farkl\u0131 girdiler i\u00e7in yan\u0131t s\u00fcrelerini kar\u015f\u0131la\u015ft\u0131rarak, sistemin i\u00e7 i\u015fleyi\u015fi hakk\u0131nda bilgi elde eder. \u00d6rne\u011fin, bir do\u011frulama i\u015fleminde, yanl\u0131\u015f bir parola girdisi ile do\u011fru parola girdisi aras\u0131nda \u00e7ok k\u00fc\u00e7\u00fck farklar olsa bile, bu farklar, sald\u0131rgan\u0131n parolay\u0131 tahmin etmesini sa\u011flayabilir.  Bu, \u00f6zellikle \u015fifreleme algoritmalar\u0131nda veya kriptografik i\u015flemlerde kullan\u0131lan zamanlama farklar\u0131ndan yararlan\u0131r.<\/p>\n<p>\u015eimdi, Node.js&#8217;de zamanlama sald\u0131r\u0131lar\u0131na daha yak\u0131ndan bakal\u0131m.  \u00d6ncelikle,  bu sald\u0131r\u0131lar nas\u0131l ger\u00e7ekle\u015fir ve ne t\u00fcr riskler ta\u015f\u0131r?  Daha sonra, bu risklerden nas\u0131l korunabilece\u011finizi ad\u0131m ad\u0131m a\u00e7\u0131klayaca\u011f\u0131m.<\/p>\n<h2>Node.js&#8217;de Zamanlama Sald\u0131r\u0131lar\u0131na \u00d6rnekler<\/h2>\n<p>Bir \u00f6rnek olarak, basit bir parola do\u011frulama mekanizmas\u0131n\u0131 ele alal\u0131m.  E\u011fer uygulama, her bir parola deneme s\u00fcresini \u00f6l\u00e7\u00fclebilir bir \u015fekilde i\u015flerse, bir sald\u0131rgan farkl\u0131 \u015fifreler denedi\u011finde ge\u00e7en s\u00fcreyi \u00f6l\u00e7erek do\u011fru \u015fifreyi bulabilir.  Bu, do\u011fru \u015fifreyle yap\u0131lan do\u011frulama daha h\u0131zl\u0131 oldu\u011fu i\u00e7in ger\u00e7ekle\u015fir.<\/p>\n<pre><code class=\"language-javascript\">\n\/\/ G\u00fcvensiz \u00d6rnek (Zamanlama Sald\u0131r\u0131s\u0131na A\u00e7\u0131k)\nfunction checkPassword(password) {\n  const hash = '...'; \/\/ Parolan\u0131n hash de\u011feri\n  const startTime = Date.now();\n  const isEqual = password === hash;\n  const endTime = Date.now();\n  console.log(\"Do\u011frulama s\u00fcresi: \", endTime - startTime); \/\/ Zamanlama bilgisi s\u0131z\u0131nt\u0131s\u0131!\n  return isEqual;\n}\n<\/code><\/pre>\n<p>Yukar\u0131daki kodda, do\u011frulama s\u00fcresi a\u00e7\u0131k\u00e7a \u00f6l\u00e7\u00fclmekte ve bu da sald\u0131rganlar i\u00e7in a\u00e7\u0131k bir pencere a\u00e7maktad\u0131r.  Bu t\u00fcr durumlarda, sabit zamanl\u0131 algoritmalar kullanmak hayati \u00f6nem ta\u015f\u0131r.<\/p>\n<h2>Korunma Y\u00f6ntemleri<\/h2>\n<p>Node.js uygulamalar\u0131n\u0131zda zamanlama sald\u0131r\u0131lar\u0131ndan korunmak i\u00e7in birka\u00e7 \u00f6nemli y\u00f6ntem bulunmaktad\u0131r.  \u00d6ncelikle, sabit zamanl\u0131 algoritmalar tercih edilmelidir.  Bu algoritmalar, girdi ne olursa olsun ayn\u0131 s\u00fcrede \u00e7al\u0131\u015f\u0131r.  B\u00f6ylece, sald\u0131rganlar i\u015flem s\u00fcrelerinden herhangi bir bilgi elde edemezler.<\/p>\n<p>\u0130kinci olarak,  kullan\u0131lan k\u00fct\u00fcphanelerin g\u00fcvenlik a\u00e7\u0131klar\u0131ndan haberdar olmak \u00f6nemlidir.  D\u00fczenli g\u00fcncellemeler yaparak ve g\u00fcvenli kodlama uygulamalar\u0131na uyarak, olas\u0131 riskleri minimize edebilirsiniz.  \u00d6rne\u011fin,  crypto mod\u00fcl\u00fcn\u00fc kullan\u0131rken, g\u00fcvenli fonksiyonlar\u0131 tercih etmek \u00f6nemlidir.<\/p>\n<p>Son olarak,  uygulaman\u0131z\u0131n t\u00fcm giri\u015f noktalar\u0131n\u0131 d\u00fczenli olarak g\u00fcvenlik a\u00e7\u0131s\u0131ndan incelemeniz \u00f6nemlidir.  Bu, olas\u0131 zamanlama sald\u0131r\u0131lar\u0131n\u0131n erken tespitini sa\u011flar.<\/p>\n<h2>Sonu\u00e7<\/h2>\n<p>Node.js uygulamalar\u0131nda zamanlama sald\u0131r\u0131lar\u0131 \u00f6nemli bir g\u00fcvenlik tehdididir.  Ancak, sabit zamanl\u0131 algoritmalar kullanarak ve g\u00fcvenli kodlama uygulamalar\u0131na uyarak, bu sald\u0131r\u0131lardan korunmak m\u00fcmk\u00fcnd\u00fcr.  Unutmay\u0131n ki, s\u00fcrekli g\u00fcvenlik g\u00fcncellemeleri yaparak ve g\u00fcvenli\u011finizi d\u00fczenli olarak g\u00f6zden ge\u00e7irerek uygulamalar\u0131n\u0131z\u0131 daha g\u00fcvenli hale getirebilirsiniz.<\/p>\n<p>Daha fazla bilgi i\u00e7in, <a href=\"https:\/\/fatihsoysal.com\">fatihsoysal.com<\/a> adresini ziyaret edebilirsiniz.  Ayr\u0131ca, a\u015fa\u011f\u0131daki kaynaklar da olduk\u00e7a faydal\u0131 olacakt\u0131r:<\/p>\n<ul>\n<li><a href=\"https:\/\/owasp.org\">OWASP<\/a><\/li>\n<li><a href=\"https:\/\/dev.to\/silentwatcher_95\/timing-attacks-in-nodejs-4pmb\">Dev.to Makalesi (\u0130ngilizce)<\/a><\/li>\n<\/ul>\n<p>Umar\u0131m bu makale size Node.js uygulamalar\u0131n\u0131zda zamanlama sald\u0131r\u0131lar\u0131 konusunda yard\u0131mc\u0131 olmu\u015ftur.<\/p>\n<h3>#Etiketler<\/h3>\n<p>#Node.js #ZamanlamaSald\u0131r\u0131s\u0131 #TimingAttack #G\u00fcvenlik #SiberG\u00fcvenlik #Programlama #Yaz\u0131l\u0131mG\u00fcvenli\u011fi #JavaScript #Kriptografi #G\u00fcvenliKodlama<\/p>\n<p><\/body><br \/>\n<\/html><\/p>\n","protected":false},"excerpt":{"rendered":"Node.js&#8217;de Zamanlama Sald\u0131r\u0131lar\u0131: Uygulamalar\u0131n\u0131z\u0131 Koruma Rehberi Merhaba! Ben Fatih Soysal ve bug\u00fcn Node.js uygulamalar\u0131nda gizli bir tehdit olan&hellip;","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"csco_page_header_type":"","csco_page_load_nextpost":"","csco_page_subscribe_form":"","csco_page_contact_form":"","footnotes":""},"categories":[1],"tags":[],"class_list":{"0":"post-18885","1":"post","2":"type-post","3":"status-publish","4":"format-standard","6":"category-genel","7":"cs-entry","8":"cs-video-wrap"},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v20.5 (Yoast SEO v25.3.1) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Node.js&#039;de Zamanlama Sald\u0131r\u0131lar\u0131: Uygulamalar\u0131n\u0131z\u0131 Koruma Rehberi<\/title>\n<meta name=\"description\" content=\"Merhaba! Ben Fatih Soysal ve bug\u00fcn Node.js uygulamalar\u0131nda gizli bir tehdit olan zamanlama sald\u0131r\u0131lar\u0131n\u0131 (timing attacks) ele alaca\u011f\u0131z. Bu sald\u0131r\u0131lar, bir sistemin i\u015flem s\u00fcrelerine dayanarak hassas bilgileri ortaya \u00e7\u0131karmay\u0131 ama\u00e7layan incelikli g\u00fcvenlik a\u00e7\u0131klar\u0131d\u0131r. \u00d6rne\u011fin, bir parola do\u011frulama i\u015fleminin s\u00fcresi, paroladaki karakter say\u0131s\u0131yla do\u011fru orant\u0131l\u0131 olabilir. Bu farklar, sald\u0131rganlar i\u00e7in \u00f6nemli bilgiler sunabilir. Bu nedenle, Node.js uygulamalar\u0131n\u0131z\u0131 bu sald\u0131r\u0131lardan korumak son derece \u00f6nemlidir.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Node.js&#039;de Zamanlama Sald\u0131r\u0131lar\u0131: Uygulamalar\u0131n\u0131z\u0131 Koruma Rehberi\" \/>\n<meta property=\"og:description\" content=\"Merhaba! Ben Fatih Soysal ve bug\u00fcn Node.js uygulamalar\u0131nda gizli bir tehdit olan zamanlama sald\u0131r\u0131lar\u0131n\u0131 (timing attacks) ele alaca\u011f\u0131z. Bu sald\u0131r\u0131lar, bir sistemin i\u015flem s\u00fcrelerine dayanarak hassas bilgileri ortaya \u00e7\u0131karmay\u0131 ama\u00e7layan incelikli g\u00fcvenlik a\u00e7\u0131klar\u0131d\u0131r. \u00d6rne\u011fin, bir parola do\u011frulama i\u015fleminin s\u00fcresi, paroladaki karakter say\u0131s\u0131yla do\u011fru orant\u0131l\u0131 olabilir. Bu farklar, sald\u0131rganlar i\u00e7in \u00f6nemli bilgiler sunabilir. 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Ben Fatih Soysal ve bug\u00fcn Node.js uygulamalar\u0131nda gizli bir tehdit olan zamanlama sald\u0131r\u0131lar\u0131n\u0131 (timing attacks) ele alaca\u011f\u0131z. Bu sald\u0131r\u0131lar, bir sistemin i\u015flem s\u00fcrelerine dayanarak hassas bilgileri ortaya \u00e7\u0131karmay\u0131 ama\u00e7layan incelikli g\u00fcvenlik a\u00e7\u0131klar\u0131d\u0131r. \u00d6rne\u011fin, bir parola do\u011frulama i\u015fleminin s\u00fcresi, paroladaki karakter say\u0131s\u0131yla do\u011fru orant\u0131l\u0131 olabilir. Bu farklar, sald\u0131rganlar i\u00e7in \u00f6nemli bilgiler sunabilir. Bu nedenle, Node.js uygulamalar\u0131n\u0131z\u0131 bu sald\u0131r\u0131lardan korumak son derece \u00f6nemlidir.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/","og_locale":"tr_TR","og_type":"article","og_title":"Node.js'de Zamanlama Sald\u0131r\u0131lar\u0131: Uygulamalar\u0131n\u0131z\u0131 Koruma Rehberi","og_description":"Merhaba! Ben Fatih Soysal ve bug\u00fcn Node.js uygulamalar\u0131nda gizli bir tehdit olan zamanlama sald\u0131r\u0131lar\u0131n\u0131 (timing attacks) ele alaca\u011f\u0131z. Bu sald\u0131r\u0131lar, bir sistemin i\u015flem s\u00fcrelerine dayanarak hassas bilgileri ortaya \u00e7\u0131karmay\u0131 ama\u00e7layan incelikli g\u00fcvenlik a\u00e7\u0131klar\u0131d\u0131r. \u00d6rne\u011fin, bir parola do\u011frulama i\u015fleminin s\u00fcresi, paroladaki karakter say\u0131s\u0131yla do\u011fru orant\u0131l\u0131 olabilir. Bu farklar, sald\u0131rganlar i\u00e7in \u00f6nemli bilgiler sunabilir. Bu nedenle, Node.js uygulamalar\u0131n\u0131z\u0131 bu sald\u0131r\u0131lardan korumak son derece \u00f6nemlidir.","og_url":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/","og_site_name":"Kodlar\u0131n Gizemli D\u00fcnyas\u0131","article_published_time":"2025-04-22T10:30:13+00:00","author":"Fatih Soysal","twitter_card":"summary_large_image","twitter_misc":{"Yazan:":"Fatih Soysal","Tahmini okuma s\u00fcresi":"3 dakika"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/#article","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/"},"author":{"name":"Fatih Soysal","@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"headline":"Node.js&#8217;de Zamanlama Sald\u0131r\u0131lar\u0131: Uygulamalar\u0131n\u0131z\u0131 Koruma Rehberi","datePublished":"2025-04-22T10:30:13+00:00","mainEntityOfPage":{"@id":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/"},"wordCount":629,"commentCount":0,"publisher":{"@id":"https:\/\/fatihsoysal.com\/blog\/#\/schema\/person\/002a254750921dcfd568a99e48240dd1"},"inLanguage":"tr","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/#respond"]}],"copyrightYear":"2025","copyrightHolder":{"@id":"https:\/\/fatihsoysal.com\/blog\/#organization"}},{"@type":"WebPage","@id":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/","url":"https:\/\/fatihsoysal.com\/blog\/node-jsde-zamanlama-saldirilari-uygulamalarinizi-koruma-rehberi\/","name":"Node.js'de Zamanlama Sald\u0131r\u0131lar\u0131: Uygulamalar\u0131n\u0131z\u0131 Koruma Rehberi","isPartOf":{"@id":"https:\/\/fatihsoysal.com\/blog\/#website"},"datePublished":"2025-04-22T10:30:13+00:00","description":"Merhaba! Ben Fatih Soysal ve bug\u00fcn Node.js uygulamalar\u0131nda gizli bir tehdit olan zamanlama sald\u0131r\u0131lar\u0131n\u0131 (timing attacks) ele alaca\u011f\u0131z. Bu sald\u0131r\u0131lar, bir sistemin i\u015flem s\u00fcrelerine dayanarak hassas bilgileri ortaya \u00e7\u0131karmay\u0131 ama\u00e7layan incelikli g\u00fcvenlik a\u00e7\u0131klar\u0131d\u0131r. \u00d6rne\u011fin, bir parola do\u011frulama i\u015fleminin s\u00fcresi, paroladaki karakter say\u0131s\u0131yla do\u011fru orant\u0131l\u0131 olabilir. Bu farklar, sald\u0131rganlar i\u00e7in \u00f6nemli bilgiler sunabilir. 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