Ifayile Yokugcinwa kweStellption Definition
Yiyiphi iFayile yokuLungisa ukuTyhila?
Ukufakela imfihlo yokugcinwa kwefayile yindlela yokugcinwa kwedatha yokugcinwa kwedatha, ngokuqhelekileyo ngenjongo yokukhusela ulwazi olubucayi ukuba lujongwe ngabantu abangenakukwazi ukufikelela kuyo.
Ukubhaliweyo kufaka iifayile kwifomathi ekhuselekile nekhutshwe ngegama elibizwa ngokuba yi- ciphertext engafundwa ngumntu, kwaye ngoko ayikwazi ukuqondwa ngaphandle kokuyibuyisela kuqala kwiimeko eziqhelekileyo ezifundekayo ezibizwa ngokuba yi- plaintext , okanye icacile .
Ukufakela imfihlo yokugcinwa kwefayile kuhlukile kunokuba kufakwe ukubetha kwefayile , okubhaliweyo kusetyenziswa kuphela xa uhambisa idatha ukusuka kwenye indawo ukuya kwenye.
Uphi iFayile Yokugcinwa kweSitoreji seFayile?
Ukufakela imfihlo yokugcinwa kwefayile kunokwenzeka ukuba kusetyenziswe ukuba idatha igcinwe kwi-intanethi okanye kwindawo efikeleleka kalula, kufana ne- drive yangaphandle okanye i- flash drive .
Naliphi na isahlulo se-software inokuphumeza ukubethelwa kwefayile yokugcinwa kwefayile kodwa ngokuqhelekileyo yinto efanelekileyo kuphela ukuba ulwazi lomntu siqu lugcinwa.
Kwiiprogram ezingenayo ukugcinwa kwefayile yokugcinwa kwefayile, izixhobo zenkampani yesithathu zingenza umsebenzi. Ngokomzekelo, inani lenkululeko, iifayile ze-disk encryption epheleleyo zikhona apho zingasetyenziselwa ukubethela yonke idrayivu.
Kuqhelekileyo ukubethela okumele kusetyenziswe ngamashishini kumaseva abo xa iinkcukacha zakho zobuntu zifana nolwazi lokuhlawula, iifoto, i-imeyile, okanye ulwazi lwendawo ligcinwa.
Iifayile zokuThengisa ukuThengiswa kweeNkcazo zeBakala
I-AES encryption algorithm ifumaneka ngeendlela ezahlukeneyo: i-128-bit, 192-bit, kunye ne-256-bit. Umgangatho ophezulu ophezulu uza kunika ukhuseleko olungaphezulu kunomncinci, kodwa ngeenjongo ezibonakalayo, ukhetho lokubhaliweyo lwe-128-bit lugqibelele ngokupheleleyo kulwazi olukhuselekileyo lokulondoloza ulwazi lwedijithali.
I-Blowfish yenye enye i-algorithm ene-encryption eqinile engasetyenziselwa ukugcina idatha ngokukhuselekileyo. I-Blowfish isebenzisa ubude obuphambili kuyo yonke indawo ukusuka kuma-32 bits ukuya kuma-448 bits.
Umahluko omkhulu phakathi kwala manani-bakala kukuba iisayizi eziphambili zexesha elide zisetyenziselwa ukujikeleza ngaphezu kwezona ncinane. Umzekelo, ukubethelwa kwe-128-bit usebenzisa i-round-rounds ye-256 ngelixa u-256-bit encryption usebenzisa i-round round 14, kunye ne-Blowfish isebenzisa eli-16. Ukuphindaphinda ngokuphindaphindiweyo, ukugqithiswa kwedatha kubakho, okwenza kube nzima ukuphula.
Nangona kunjalo, nangona i-128-bit encryption ayiphindaphindi umjikelezo ngokuphindaphindiweyo njengamanye amanqanaba amancinci, isalokhu ikhuselekile kakhulu , kwaye iza kuthatha inani elikhulu lokusebenza kwamandla kunye nexesha elide kakhulu lokusebenzisa iteknoloji yanamhlanje.
Ifayile yeSitoreji sokuLondoloza ngeSofthiwe yokuSebenza
Phantse zonke iinkonzo zokugcina i-intanethi zisebenzisa i-encryption yefayile yefayile. Oku kuyimfuneko kuqwalasela ukuba iinkcukacha zabucala ezifana nevidiyo, imifanekiso, kunye namaxwebhu agcinwa kwiiseva ezifumaneka kwi-Intanethi.
Emva kokubhaliweyo, idatha ayinakufundwa ngabani ngaphandle kokuba iphasiwedi esetshenziselwa ukubethela ibhokisi isetyenziselwa ukuguqula i-encryption, okanye ukuyichitha, ukunika iifayile.
Ezinye izixhobo zokugcina izinto ezingekho phantsi kwe-intanethi zizalisekisa ukubetha kwefayile yefayile ukwenzela ukuba iifayile ozibuyisele kwi-drive ephathekayo, njenge-disk drive yangaphandle, i-disk okanye i-flash drive, ayikho kwifomu yokuba nabani na abanayo i-drive bangabheka .
Kule meko, kufana nokugcinwa kwe-intanethi, iifayile azifundwanga ngaphandle kokuba isofthiwe efanayo, ihamba kunye nephasiwedi ye-decryption, isetyenziselwa ukubuyisela iifayile kwakhona.