{"id":20687,"date":"2026-03-19T22:06:38","date_gmt":"2026-03-19T19:06:38","guid":{"rendered":"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/"},"modified":"2026-03-19T22:06:45","modified_gmt":"2026-03-19T19:06:45","slug":"sifreleme-encryption-nedir-veriler-nasil-sifrelenir","status":"publish","type":"post","link":"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/","title":{"rendered":"\u015eifreleme (Encryption) Nedir? Veriler Nas\u0131l \u015eifrelenir?"},"content":{"rendered":"<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_84 ez-toc-wrap-center counter-hierarchy ez-toc-counter ez-toc-custom ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<span class=\"ez-toc-title-toggle\"><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1 ' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/#Sifrelemenin_Temel_Kavramlari_ve_Onemi\" >\u015eifrelemenin Temel Kavramlar\u0131 ve \u00d6nemi<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/#Simetrik_Sifreleme\" >Simetrik \u015eifreleme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/#Asimetrik_Sifreleme\" >Asimetrik \u015eifreleme<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/#Veriler_Nasil_Sifrelenir_Uygulamali_Yontemler\" >Veriler Nas\u0131l \u015eifrelenir: Uygulamal\u0131 Y\u00f6ntemler<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/#1_Dosya_ve_Disk_Sifreleme\" >1. Dosya ve Disk \u015eifreleme<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/#2_Iletisim_ve_Veri_Aktarimi_Sifrelemesi\" >2. \u0130leti\u015fim ve Veri Aktar\u0131m\u0131 \u015eifrelemesi<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/#3_E-posta_Sifrelemesi\" >3. E-posta \u015eifrelemesi<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/sunucun.com.tr\/blog\/sifreleme-encryption-nedir-veriler-nasil-sifrelenir\/#Dogru_Sifreleme_Algoritmasini_Secmek\" >Do\u011fru \u015eifreleme Algoritmas\u0131n\u0131 Se\u00e7mek<\/a><\/li><\/ul><\/nav><\/div>\n<p>\u015eifreleme (Encryption) Nedir? Veriler Nas\u0131l \u015eifrelenir?<br \/>\nDijital \u00e7a\u011fda, veriler en de\u011ferli varl\u0131klar\u0131m\u0131zdan biri haline gelmi\u015ftir. Ki\u015fisel bilgilerimizden kurumsal s\u0131rlara, finansal i\u015flemlerden devlet g\u00fcvenli\u011fine kadar her alanda verinin korunmas\u0131 kritik bir \u00f6neme sahiptir. Peki, bu hassas bilgileri yetkisiz eri\u015fimlerden, siber sald\u0131r\u0131lardan ve veri ihlallerinden nas\u0131l koruruz? Cevap, modern siber g\u00fcvenli\u011fin temel ta\u015flar\u0131ndan biri olan \u015fifrelemede yatmaktad\u0131r. \u015eifreleme, okunabilir durumdaki bir veriyi (d\u00fcz metin), \u00f6zel bir anahtar olmadan anla\u015f\u0131lamayacak karma\u015f\u0131k bir forma (\u015fifreli metin) d\u00f6n\u00fc\u015ft\u00fcrme i\u015flemidir. Bu sayede, verileriniz \u00e7al\u0131nsa veya ele ge\u00e7irilse bile, do\u011fru anahtara sahip olmayan ki\u015filer i\u00e7in anlams\u0131z bir karakter y\u0131\u011f\u0131n\u0131ndan ibaret olur. Bu s\u00fcre\u00e7, dijital d\u00fcnyadaki gizlili\u011fimizin ve g\u00fcvenli\u011fimizin temel garantisidir.<br \/>\n<\/p>\n<figure class=\"wp-block-image aligncenter size-medium is-resized\">\n  <img src=\"https:\/\/sunucun.com.tr\/blog\/wp-content\/uploads\/2026\/03\/text-sifreleme-encryption-nedir-veriler-nasil-sifrelenir.jpg\" class=\"size-medium aligncenter\" style=\"width:100%;\" alt=\"Veriler Nas\u0131l \u015eifrelenir sorusuna yan\u0131t olarak a\u00e7\u0131k ve \u00f6zel anahtar kullan\u0131m\u0131n\u0131 g\u00f6sterir.\" title=\"A\u00e7\u0131k Anahtarl\u0131 Kriptografi ile Veri D\u00f6n\u00fc\u015f\u00fcm\u00fc\" loading=\"lazy\" decoding=\"async\"><figcaption>\n    Veriler Nas\u0131l \u015eifrelenir sorusuna yan\u0131t olarak a\u00e7\u0131k ve \u00f6zel anahtar kullan\u0131m\u0131n\u0131 g\u00f6sterir.<br \/>\n  <\/figcaption><\/figure>\n<p><\/p>\n<h2><span class=\"ez-toc-section\" id=\"Sifrelemenin_Temel_Kavramlari_ve_Onemi\"><\/span>\u015eifrelemenin Temel Kavramlar\u0131 ve \u00d6nemi<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u015eifreleme, matematiksel algoritmalar ve bir veya daha fazla &#8220;anahtar&#8221; kullanarak veriyi d\u00f6n\u00fc\u015ft\u00fcr\u00fcr. Bu s\u00fcrecin temel amac\u0131, verinin gizlili\u011fini (confidentiality), b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc (integrity) ve kimlik do\u011frulamas\u0131n\u0131 (authentication) sa\u011flamakt\u0131r. Gizlilik, verinin yaln\u0131zca yetkili ki\u015filer taraf\u0131ndan okunabilmesini garanti eder. B\u00fct\u00fcnl\u00fck, verinin aktar\u0131m s\u0131ras\u0131nda veya depolan\u0131rken de\u011fi\u015ftirilmedi\u011finden emin olunmas\u0131n\u0131 sa\u011flar. Kimlik do\u011frulamas\u0131 ise verinin ger\u00e7ekten belirtilen kaynaktan geldi\u011fini do\u011frular. Bu \u00fc\u00e7 ilke, siber g\u00fcvenlik stratejilerinin bel kemi\u011fini olu\u015fturur.<\/p>\n<p>G\u00fcn\u00fcm\u00fczde \u015fifrelemenin \u00f6nemi giderek artmaktad\u0131r. E-ticaret sitelerinde kredi kart\u0131 bilgilerimizi girerken, e-posta g\u00f6nderirken, bulut depolama hizmetlerini kullan\u0131rken veya anl\u0131k mesajla\u015fma uygulamalar\u0131nda sohbet ederken arka planda s\u00fcrekli olarak \u015fifreleme teknolojileri \u00e7al\u0131\u015f\u0131r. SSL\/TLS sertifikalar\u0131 sayesinde web siteleri ile taray\u0131c\u0131lar\u0131m\u0131z aras\u0131ndaki <a href=\"https:\/\/sunucun.com.tr\/iletisim\" data-internallinksmanager029f6b8e52c=\"95\" title=\"\u0130leti\u015fim bilgilerine buradan ula\u015f\u0131n\">ileti\u015fim<\/a> \u015fifrelenir, bu da online al\u0131\u015fveri\u015f ve bankac\u0131l\u0131k i\u015flemlerini g\u00fcvenli hale getirir. U\u00e7tan uca \u015fifreleme (end-to-end encryption) kullanan mesajla\u015fma uygulamalar\u0131, mesajlar\u0131n sadece g\u00f6nderici ve al\u0131c\u0131 taraf\u0131ndan okunabilmesini sa\u011flar; hizmet sa\u011flay\u0131c\u0131n\u0131n kendisi bile bu mesajlara eri\u015femez. Veri ihlallerinin maliyetinin ve itibar kayb\u0131n\u0131n giderek artt\u0131\u011f\u0131 bir ortamda, \u015fifreleme art\u0131k bir se\u00e7enek de\u011fil, bir zorunluluktur.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Simetrik_Sifreleme\"><\/span>Simetrik \u015eifreleme<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Simetrik \u015fifreleme, en eski ve en temel \u015fifreleme y\u00f6ntemlerinden biridir. Bu y\u00f6ntemin temel \u00f6zelli\u011fi, hem \u015fifreleme hem de \u015fifre \u00e7\u00f6zme i\u015flemleri i\u00e7in ayn\u0131 gizli anahtar\u0131n kullan\u0131lmas\u0131d\u0131r. G\u00f6nderici, veriyi bu gizli anahtarla \u015fifreler ve al\u0131c\u0131ya \u015fifreli metinle birlikte bu anahtar\u0131 g\u00fcvenli bir \u015fekilde iletmek zorundad\u0131r. Al\u0131c\u0131, ayn\u0131 anahtar\u0131 kullanarak \u015fifreli metni tekrar orijinal, okunabilir haline d\u00f6n\u00fc\u015ft\u00fcr\u00fcr. H\u0131zl\u0131 ve verimli olmas\u0131 nedeniyle b\u00fcy\u00fck veri bloklar\u0131n\u0131n \u015fifrelenmesi i\u00e7in idealdir. AES (Advanced Encryption Standard), DES (Data Encryption Standard) ve 3DES gibi pop\u00fcler algoritmalar simetrik \u015fifreleme \u00f6rnekleridir. Ancak en b\u00fcy\u00fck zorlu\u011fu, anahtar\u0131n g\u00fcvenli bir \u015fekilde payla\u015f\u0131lmas\u0131d\u0131r. E\u011fer anahtar \u00fc\u00e7\u00fcnc\u00fc bir \u015fahs\u0131n eline ge\u00e7erse, t\u00fcm ileti\u015fim tehlikeye girer.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"Asimetrik_Sifreleme\"><\/span>Asimetrik \u015eifreleme<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Asimetrik \u015fifreleme, veya di\u011fer ad\u0131yla a\u00e7\u0131k anahtarl\u0131 \u015fifreleme, simetrik \u015fifrelemenin anahtar da\u011f\u0131t\u0131m sorununa bir \u00e7\u00f6z\u00fcm olarak geli\u015ftirilmi\u015ftir. Bu y\u00f6ntemde, birbiriyle matematiksel olarak ba\u011flant\u0131l\u0131 iki farkl\u0131 anahtar kullan\u0131l\u0131r: bir genel anahtar (public key) ve bir \u00f6zel anahtar (private key). Genel anahtar herkesle serbest\u00e7e payla\u015f\u0131labilirken, \u00f6zel anahtar sadece sahibi taraf\u0131ndan gizli tutulur. Veri, al\u0131c\u0131n\u0131n genel anahtar\u0131 kullan\u0131larak \u015fifrelenir ve bu \u015fifrelenmi\u015f veri yaln\u0131zca al\u0131c\u0131n\u0131n sahip oldu\u011fu \u00f6zel anahtar ile \u00e7\u00f6z\u00fclebilir. Bu sayede, anahtar de\u011fi\u015fimi i\u00e7in g\u00fcvenli bir kanala ihtiya\u00e7 duyulmaz. RSA ve ECC (Elliptic Curve Cryptography) en bilinen asimetrik \u015fifreleme algoritmalar\u0131d\u0131r. Asimetrik \u015fifreleme, simetrik \u015fifrelemeye g\u00f6re daha yava\u015f \u00e7al\u0131\u015f\u0131r, bu nedenle genellikle daha k\u00fc\u00e7\u00fck boyutlu verilerin, \u00f6rne\u011fin simetrik \u015fifreleme anahtarlar\u0131n\u0131n g\u00fcvenli bir \u015fekilde iletilmesi i\u00e7in kullan\u0131l\u0131r.<\/p>\n<p>A\u015fa\u011f\u0131daki tablo, bu iki temel \u015fifreleme t\u00fcr\u00fc aras\u0131ndaki temel farklar\u0131 \u00f6zetlemektedir:<\/p>\n<table>\n<thead>\n<tr>\n<th>\u00d6zellik<\/th>\n<th>Simetrik \u015eifreleme<\/th>\n<th>Asimetrik \u015eifreleme<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Kullan\u0131lan Anahtar Say\u0131s\u0131<\/strong><\/td>\n<td>Tek bir gizli anahtar (hem \u015fifreleme hem de \u015fifre \u00e7\u00f6zme i\u00e7in)<\/td>\n<td>\u0130ki anahtar: bir genel (public) ve bir \u00f6zel (private) anahtar<\/td>\n<\/tr>\n<tr>\n<td><strong>H\u0131z<\/strong><\/td>\n<td>\u00c7ok h\u0131zl\u0131 ve verimli<\/td>\n<td>Daha yava\u015f ve hesaplama a\u00e7\u0131s\u0131ndan yo\u011fun<\/td>\n<\/tr>\n<tr>\n<td><strong>Anahtar Y\u00f6netimi<\/strong><\/td>\n<td>Zor. Anahtar\u0131n g\u00fcvenli bir \u015fekilde payla\u015f\u0131lmas\u0131 gerekir.<\/td>\n<td>Kolay. Genel anahtar serbest\u00e7e da\u011f\u0131t\u0131labilir.<\/td>\n<\/tr>\n<tr>\n<td><strong>Kullan\u0131m Alanlar\u0131<\/strong><\/td>\n<td>B\u00fcy\u00fck veri setlerinin, dosya sistemlerinin ve veritabanlar\u0131n\u0131n \u015fifrelenmesi<\/td>\n<td>Dijital imzalar, SSL\/TLS el s\u0131k\u0131\u015fmalar\u0131, g\u00fcvenli anahtar de\u011fi\u015fimi<\/td>\n<\/tr>\n<tr>\n<td><strong>Pop\u00fcler Algoritmalar<\/strong><\/td>\n<td>AES, DES, 3DES, Blowfish<\/td>\n<td>RSA, ECC, Diffie-Hellman<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2><span class=\"ez-toc-section\" id=\"Veriler_Nasil_Sifrelenir_Uygulamali_Yontemler\"><\/span>Veriler Nas\u0131l \u015eifrelenir: Uygulamal\u0131 Y\u00f6ntemler<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>Teorik bilgilerin ard\u0131ndan, g\u00fcnl\u00fck hayatta ve kurumsal ortamlarda verilerin nas\u0131l \u015fifrelendi\u011fine dair pratik ad\u0131mlara g\u00f6z atal\u0131m. \u015eifreleme, farkl\u0131 veri t\u00fcrleri ve senaryolar i\u00e7in \u00e7e\u015fitli ara\u00e7lar ve protokoller arac\u0131l\u0131\u011f\u0131yla ger\u00e7ekle\u015ftirilir.<\/p>\n<h3><span class=\"ez-toc-section\" id=\"1_Dosya_ve_Disk_Sifreleme\"><\/span>1. Dosya ve Disk \u015eifreleme<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Bilgisayar\u0131n\u0131zdaki veya harici depolama ayg\u0131tlar\u0131n\u0131zdaki verileri koruman\u0131n en etkili yollar\u0131ndan biri tam disk \u015fifrelemesidir. Bu y\u00f6ntem, cihaz\u0131n\u0131z\u0131n t\u00fcm i\u00e7eri\u011fini otomatik olarak \u015fifreler.<\/p>\n<ul>\n<li><strong>Windows i\u00e7in BitLocker:<\/strong> Windows i\u015fletim sisteminin profesyonel ve kurumsal s\u00fcr\u00fcmlerinde yerle\u015fik olarak gelen bir ara\u00e7t\u0131r. Kontrol Panelinden kolayca etkinle\u015ftirilebilir ve s\u00fcr\u00fcc\u00fcn\u00fczdeki t\u00fcm verileri g\u00fc\u00e7l\u00fc AES \u015fifrelemesi ile korur. Cihaz\u0131n\u0131z \u00e7al\u0131nsa bile, \u015fifreniz veya kurtarma anahtar\u0131n\u0131z olmadan verilere eri\u015filemez.<\/li>\n<li><strong>macOS i\u00e7in FileVault:<\/strong> Apple&#8217;\u0131n macOS i\u015fletim sisteminde bulunan benzer bir tam disk \u015fifreleme \u00e7\u00f6z\u00fcm\u00fcd\u00fcr. Sistem Tercihleri \u00fczerinden etkinle\u015ftirilir ve ba\u015flang\u0131\u00e7 diskinizi koruma alt\u0131na al\u0131r.<\/li>\n<li><strong>VeraCrypt:<\/strong> A\u00e7\u0131k kaynakl\u0131 ve platformlar aras\u0131 \u00e7al\u0131\u015fan g\u00fc\u00e7l\u00fc bir \u015fifreleme arac\u0131d\u0131r. Sadece tam disk \u015fifrelemesi yapmakla kalmaz, ayn\u0131 zamanda belirli dosyalar\u0131 veya klas\u00f6rleri i\u00e7eren \u015fifreli sanal disk &#8220;konteynerleri&#8221; olu\u015fturman\u0131za da olanak tan\u0131r.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"2_Iletisim_ve_Veri_Aktarimi_Sifrelemesi\"><\/span>2. \u0130leti\u015fim ve Veri Aktar\u0131m\u0131 \u015eifrelemesi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Veriler sadece depolan\u0131rken de\u011fil, ayn\u0131 zamanda bir yerden bir yere aktar\u0131l\u0131rken de savunmas\u0131zd\u0131r. Bu nedenle ileti\u015fim kanallar\u0131n\u0131n \u015fifrelenmesi hayati \u00f6nem ta\u015f\u0131r.<\/p>\n<ul>\n<li><strong>SSL\/TLS (HTTPS):<\/strong> Web taray\u0131c\u0131n\u0131z ile ziyaret etti\u011finiz web sitesi aras\u0131ndaki trafi\u011fi \u015fifreler. Adres \u00e7ubu\u011funda g\u00f6rd\u00fc\u011f\u00fcn\u00fcz &#8220;https:\/\/&#8221; ve kilit simgesi, ba\u011flant\u0131n\u0131z\u0131n g\u00fcvenli oldu\u011funu ve g\u00f6nderdi\u011finiz veya ald\u0131\u011f\u0131n\u0131z verilerin (\u015fifreler, form bilgileri vb.) \u00fc\u00e7\u00fcnc\u00fc \u015fah\u0131slar taraf\u0131ndan okunmas\u0131n\u0131n engellendi\u011fini g\u00f6sterir.<\/li>\n<li><strong>VPN (Sanal \u00d6zel A\u011f):<\/strong> \u0130nternet ba\u011flant\u0131n\u0131z\u0131 \u015fifrelenmi\u015f bir t\u00fcnel \u00fczerinden y\u00f6nlendirerek t\u00fcm \u00e7evrimi\u00e7i aktivitelerinizi gizler. \u00d6zellikle halka a\u00e7\u0131k Wi-Fi a\u011flar\u0131 gibi g\u00fcvenli olmayan ba\u011flant\u0131lar\u0131 kullan\u0131rken <a href=\"https:\/\/sunucun.com.tr\/blog\/vpn-nedir-internette-gizlilik-ve-guvenlik-icin-kullanim-rehberi\/\">VPN kullanmak<\/a>, verilerinizin ele ge\u00e7irilmesini \u00f6nler.<\/li>\n<li><strong>U\u00e7tan Uca \u015eifreleme (E2EE):<\/strong> WhatsApp, Signal gibi modern mesajla\u015fma uygulamalar\u0131 taraf\u0131ndan kullan\u0131l\u0131r. Mesajlar, cihaz\u0131n\u0131zdan g\u00f6nderildi\u011fi anda \u015fifrelenir ve yaln\u0131zca al\u0131c\u0131n\u0131n cihaz\u0131nda \u00e7\u00f6z\u00fcl\u00fcr. Bu, hizmet sa\u011flay\u0131c\u0131lar\u0131 da dahil olmak \u00fczere aradaki hi\u00e7 kimsenin mesaj i\u00e7eri\u011fini g\u00f6remeyece\u011fi anlam\u0131na gelir.<\/li>\n<\/ul>\n<h3><span class=\"ez-toc-section\" id=\"3_E-posta_Sifrelemesi\"><\/span>3. E-posta \u015eifrelemesi<span class=\"ez-toc-section-end\"><\/span><\/h3>\n<p>Standart e-postalar, bir kartpostal g\u00f6ndermek gibi, g\u00fcvensizdir ve yol boyunca okunabilir. Hassas bilgiler i\u00e7eren e-postalar\u0131 korumak i\u00e7in ek \u015fifreleme y\u00f6ntemleri kullan\u0131lmal\u0131d\u0131r.<\/p>\n<ul>\n<li><strong>PGP (Pretty Good Privacy) \/ GPG (GNU Privacy Guard):<\/strong> E-postalar\u0131 ve eklerini \u015fifrelemek ve dijital olarak imzalamak i\u00e7in kullan\u0131lan bir standartt\u0131r. Asimetrik \u015fifreleme prensibine dayan\u0131r. Kullan\u0131c\u0131lar bir genel ve bir \u00f6zel anahtar \u00e7ifti olu\u015fturur. Size e-posta g\u00f6ndermek isteyenler, e-postay\u0131 sizin genel anahtar\u0131n\u0131zla \u015fifreler ve bu e-postay\u0131 sadece siz kendi \u00f6zel anahtar\u0131n\u0131zla a\u00e7abilirsiniz.<\/li>\n<\/ul>\n<h2><span class=\"ez-toc-section\" id=\"Dogru_Sifreleme_Algoritmasini_Secmek\"><\/span>Do\u011fru \u015eifreleme Algoritmas\u0131n\u0131 Se\u00e7mek<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u015eifreleme d\u00fcnyas\u0131, her biri farkl\u0131 matematiksel temellere, g\u00fcvenlik seviyelerine ve performans \u00f6zelliklerine sahip \u00e7ok say\u0131da algoritma i\u00e7erir. Do\u011fru algoritmay\u0131 se\u00e7mek, uygulaman\u0131n gereksinimlerine ba\u011fl\u0131d\u0131r.<\/p>\n<ul>\n<li><strong>AES (Advanced Encryption Standard):<\/strong> G\u00fcn\u00fcm\u00fczde en yayg\u0131n kullan\u0131lan simetrik \u015fifreleme standard\u0131d\u0131r. 128, 192 veya 256-bit anahtar boyutlar\u0131 sunar. H\u0131z\u0131 ve g\u00fcvenli\u011fi nedeniyle hem donan\u0131m hem de yaz\u0131l\u0131m uygulamalar\u0131nda geni\u015f bir kullan\u0131m alan\u0131na sahiptir. ABD h\u00fck\u00fcmeti taraf\u0131ndan gizli bilgileri korumak i\u00e7in onaylanm\u0131\u015ft\u0131r.<\/li>\n<li><strong>RSA (Rivest-Shamir-Adleman):<\/strong> En pop\u00fcler asimetrik \u015fifreleme algoritmalar\u0131ndan biridir. G\u00fcvenli\u011fi, b\u00fcy\u00fck say\u0131lar\u0131 \u00e7arpanlar\u0131na ay\u0131rman\u0131n zorlu\u011funa dayan\u0131r. Genellikle SSL\/TLS sertifikalar\u0131nda ve dijital imzalarda kullan\u0131l\u0131r. Anahtar boyutlar\u0131 tipik olarak 2048-bit veya daha y\u00fcksektir.<\/li>\n<li><strong>ECC (Elliptic Curve Cryptography):<\/strong> RSA&#8217;ya g\u00f6re daha modern bir asimetrik \u015fifreleme yakla\u015f\u0131m\u0131d\u0131r. Eliptik e\u011fri matemati\u011fini kullanarak daha k\u00fc\u00e7\u00fck anahtar boyutlar\u0131yla e\u015fde\u011fer g\u00fcvenlik seviyeleri sunar. Bu, \u00f6zellikle mobil cihazlar ve IoT (Nesnelerin \u0130nterneti) gibi i\u015flem g\u00fcc\u00fc s\u0131n\u0131rl\u0131 platformlar i\u00e7in onu daha verimli hale getirir.<\/li>\n<\/ul>\n<p><\/p>\n<figure class=\"wp-block-image aligncenter size-medium is-resized\">\n  <img src=\"https:\/\/sunucun.com.tr\/blog\/wp-content\/uploads\/2026\/03\/text2-sifreleme-encryption-nedir-veriler-nasil-sifrelenir.png\" class=\"size-medium aligncenter\" style=\"width:100%;\" alt=\"Veriler Nas\u0131l \u015eifrelenir asimetrik y\u00f6ntemde, herkese a\u00e7\u0131k genel anahtar veriyi kilitlerken \u00f6zel anahtar \u00e7\u00f6zer\" title=\"A\u00e7\u0131k anahtarl\u0131 \u015fifreleme anahtar \u00e7ifti konsepti\" loading=\"lazy\" decoding=\"async\"><figcaption>\n    Veriler Nas\u0131l \u015eifrelenir asimetrik y\u00f6ntemde, herkese a\u00e7\u0131k genel anahtar veriyi kilitlerken \u00f6zel anahtar \u00e7\u00f6zer<br \/>\n  <\/figcaption><\/figure>\n<p><\/p>\n<p>G\u00fc\u00e7l\u00fc bir <a href=\"https:\/\/tr.wikipedia.org\/wiki\/%C5%9Eifreleme\" target=\"_blank\" rel=\"noopener\">\u015fifreleme<\/a> stratejisi, yaln\u0131zca do\u011fru algoritmalar\u0131 se\u00e7mekle kalmaz, ayn\u0131 zamanda anahtar y\u00f6netimini de ciddiye almay\u0131 gerektirir. Anahtarlar\u0131n g\u00fcvenli bir \u015fekilde olu\u015fturulmas\u0131, saklanmas\u0131, da\u011f\u0131t\u0131lmas\u0131 ve gerekti\u011finde iptal edilmesi, \u015fifreleme sisteminin genel g\u00fcvenli\u011fi i\u00e7in en az algoritman\u0131n kendisi kadar \u00f6nemlidir. Veri g\u00fcvenli\u011fi, dijital varl\u0131klar\u0131 korumak ve gizlili\u011fi sa\u011flamak i\u00e7in \u00e7ok katmanl\u0131 bir yakla\u015f\u0131m gerektirir ve \u015fifreleme bu yakla\u015f\u0131m\u0131n vazge\u00e7ilmez bir par\u00e7as\u0131d\u0131r.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u015eifreleme (Encryption) Nedir? Veriler Nas\u0131l \u015eifrelenir? Dijital \u00e7a\u011fda, veriler en de\u011ferli varl\u0131klar\u0131m\u0131zdan biri haline gelmi\u015ftir. Ki\u015fisel bilgilerimizden kurumsal s\u0131rlara, finansal i\u015flemlerden devlet g\u00fcvenli\u011fine kadar her alanda verinin korunmas\u0131 kritik bir \u00f6neme sahiptir. Peki, bu hassas bilgileri yetkisiz eri\u015fimlerden, siber sald\u0131r\u0131lardan ve veri ihlallerinden nas\u0131l koruruz? Cevap, modern siber g\u00fcvenli\u011fin temel ta\u015flar\u0131ndan biri olan \u015fifrelemede yatmaktad\u0131r.&hellip;<\/p>\n","protected":false},"author":1,"featured_media":20684,"comment_status":"closed","ping_status":"","sticky":false,"template":"","format":"standard","meta":{"_uf_show_specific_survey":0,"_uf_disable_surveys":false,"footnotes":""},"categories":[1525],"tags":[],"class_list":["post-20687","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-siber-guvenlik"],"_links":{"self":[{"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/posts\/20687","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/comments?post=20687"}],"version-history":[{"count":1,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/posts\/20687\/revisions"}],"predecessor-version":[{"id":20688,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/posts\/20687\/revisions\/20688"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/media\/20684"}],"wp:attachment":[{"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/media?parent=20687"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/categories?post=20687"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sunucun.com.tr\/blog\/wp-json\/wp\/v2\/tags?post=20687"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}