Kuidas WhatsApp töötab?
YouTube'is on WhatsAppi tarkvaraarendaja Rick Reedi tehniline video WhatsAppi tarkvara infrastruktuuri kohta. Põhiloogikas on WhatsApp vestlustarkvara, kus saate suhelda krüpteeritud ühendustega kirjalikul, heli- ja videovormil inimeselt inimesele, inimeselt mitmele inimesele või grupivestluse vormis. Kui WhatsApp esmakordselt seadmesse installitakse, ühtib see inimese telefoninumbri ja WhatsAppi kontoga, nii et iga number registreeritakse süsteemis kasutajana. Kuna telefoninumbrid on kogu maailmas ainulaadsed, ei ole registreerimisfaasis vaja täiendavat paroolikaitset.
Konto kinnitamise protsess viiakse läbi SMS-iga, mis saadetakse sellele telefonile. Kui teie seade suhtleb esimest korda WhatsAppi serveritega, luuakse teile saadetud SMS-kinnituskoodiga teie telefoninumbrile ainulaadne luba (turvamärk). Programm kasutab oma infrastruktuuris kohandatud XMPP-protokolli. Seda protokolli kasutasid varem ka sellised programmid nagu ICQ, AIM, Yahoo Chat ja Google Talk. Kontaktide automaatseks lisamiseks kasutaja WhatsAppi kontaktiloendisse otsib WhatsApp automaatselt kõik telefoninumbrid seadme aadressiraamatust ja võrdleb neid keskse WhatsAppi kasutajate andmebaasiga. Nii saab salvestatud telefoninumbritega WhatsAppi kontaktidega ühendust võtta.
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