Akukho ‘decrypt’ yesifihlo se-VPN esifakwe kukhodi

Ibinzana lokuhlanjulula ukhiye ofakwe kukhodi licabanga umsebenzi oyedwa ongelona. Imfihlo ye-VPN egciniwe ingaba amabhayithi afakwe kukhodi okuyisisekelo, ibhlobhu ebethelwe exhunywe esitolo sokhiye, noma isiqinisekisi sendlela eyodwa esingakwazi ukuhlanjululwa nhlobo, futhi ngasinye sidinga impendulo ehlukile. Ukufaka kukhodi okuyisisekelo akungezi mfihlo ngokwakho ukuhlela, ngakho ukukuhlanjulula kungabuyisa imfihlo esebenzekayo esikhundleni sokudalula evikelwe. Ukuqala enkambini nasekukhiqizweni okwayibhala yikho kuphela ukukhonjwa okuthembekile.

Gcina inani likude nazo zombili izihlumuli zewebhu kanye nokuthunyelwe emikhandlwini yomphakathi, ngoba imfihlo efakwe kukhodi iseyimfihlo.

Ukufaka kukhodi, ukubethela nesiqinisekisi kuyizinto ezintathu ezihlukene

I-RFC 4648 ichaza ukufaka kukhodi okuyisisekelo njengokumelela kwedatha ezindaweni ezikhawulelwe, futhi isigaba sayo sokuphepha sisho ngokusobala ukuthi akunikezi mfihlo yokubala. Lokho kusho ukuthi inkambu ye-Base64 noma ubani angayibuyisela kumabhayithi, futhi lokho kuyingozi yokubuyisa hhayi isithiyo se-cryptographic. Ukubethela kwehlukile: ngaphandle kwempahla yokhiye, amabhayithi ahlala engacaci. Isiqinisekisi siphinde sehluke, ngoba sakhiwe ukuze singakwazi ukuhlanjululwa. Ukufunda igama lenkambu elibhalwe emiqulwini ngokuvamile kukutshela ukuthi iyiphi kwezintathu onawo.

Ukubiza iyunithi yezinhlamvu ngokuthi i-Base64 akubonisi ukuthi iqukethe ini. Ingahlanjululwa ibe ukhiye, ibe isakhiwo esilandelanayo, noma ibe ukugcwalisa okungahleliwe, futhi ukubukeka kombhalo akusho lutho ngakho.

Khomba inkambu ngaphambi kokuyithinta

Bhala umkhiqizo okhiphayo kanye nenguqulo, ifomethi yephrofayili kanye negama lenkambu elibhalwe emiqulwini. Bese uhlukanisa izinhlobo zemfihlo ezihilelekile: ukhiye waphambi kokwabiwa weqembu akuwona iphasiwedi ye-akhawunti yomuntu ngamunye, akuwona umusho wephasiwedi wokhiye oyimfihlo, futhi akuwona ithokheni yokuqinisekisa. Zinabanikazi abehlukene kanye nezinqubo zokushintsha ezihlukene, futhi ukuzihlanganisa kushintsha ubufakazi obungalungile. Iphrofayili esaxhunyiwe ayiyona nemvume yokukhipha ubufakazi obungobomunye umuntu.

Ulwazi olusizo olunikezwa abasekeli umkhiqizo, inkambu, iphutha kanye nomgomo ogunyaziwe. Imfihlo ngokwayo ayiyona ingxenye yalolo hlu.

Ukubuyisa inqubo egunyaziwe, hhayi isihlumuli

Uma umkhiqizo ubhala umqulu wokukhipha okubuyisekayo kokubuyiswa okugunyaziwe, sebenzisa inqubo yawo yokungenisa noma yokubuyisa endaweni evikelwe. Gcina ifayela lokuqala, futhi gcina impahla ehlanjululwe kude namalogi, umlando we-shell namathikithi. Uma inani libethelwe noma lixhunywe esitolo esivikelwe, indlela yokuvula ebhalwe emiqulwini kanye nemvume edingekayo zivela kumnikazi, ngoba ukuhlanjulula akunikezi ukhiye noma umongo wokufinyelela womunye umsebenzisi. Uma inkambu iqukethe isiqinisekisi, landela indlela yokushintsha ebhalwe emiqulwini esikhundleni sokuzama izihlumuli.

Uma umnikazi engakwazi ukubuyisa noma ukukhipha kabusha inani ngokuphephile, impendulo ubufakazi obusha kanye nokuhlelwa kontanga okubuyekeziwe. Lokho kuyiphrojekthi enokushintsha, hhayi umyalo.

Ukushintsha imfihlo eyabiwe kungushintsho oludidiyelwe

Ukubhala phezu kwemfihlo eyabiwe yokukhiqiza ohlangothini olulodwa kuphela kwephula iklayenti ngalinye eligunyaziwe elisaphethe inani langaphambilini. Hlela ushintsho, thatha isinqumo sokuthi kukhona yini ukufinyelela okufanele kuhoxiswe, futhi gcina indlela yokubuyisa itholakala ngaphambi kokushintsha noma yimuphi umkhawulo. Memezela iwindi lesikhathi kubantu abazokubona.

Uma inani lokuqala lidaluliwe, ukujikeleza yimpendulo efanele futhi ukulihlanjulula akungezi lutho. Imfihlo edaluliwe isengozini kungakhathaliseki ukuthi ukhona yini obuyise amabhayithi.

Bhala ukuthi inani elisha likuphi nokuthi lingobani. Isigameko esilandelayo sizocela lokho, hhayi isihlumuli.