Izinhlobo zokubethela: I-Symmetric, i-asymmetric kanye nomehluko wayo

I-Informatec Digital » Ukuphepha » Izinhlobo zokubethela: Ezilinganayo, ezingafani, kanye nomehluko wazo

Ukuphepha kolwazi kuyisici esibalulekile sesikhathi sedijithali. Kusukela ekuthengiselaneni kwebhange kuya ezingxoxweni zomuntu siqu kuzinhlelo zokusebenza zemiyalezo, konke kuvikelwe kusetshenziswa amasu okubethela . Ngenxa yalezi zindlela, kungenzeka ukuqinisekisa ubumfihlo , ubuqotho , kanye nokuqinisekiswa kwedatha, ukuvimbela ukuthi ingabanjwa noma ilawulwe yizinkampani zangaphandle. Uma ungathanda ukufunda kabanzi ngenye yalezi zindlela, ungafunda kabanzi mayelana nokubethela kwe-PGP.

Kulesi sihloko, sizohlola izinhlobo eziyinhloko zokubethela , indlela ezisebenza ngayo, izinhlelo zazo zokusebenza, kanye nezinzuzo kanye nokungalungi kwazo. Ukuqonda le mibono kubalulekile kunoma ubani onentshisekelo ekuphepheni kwe-inthanethi , kungaba ngezinjongo zomuntu siqu noma zobungcweti.

Kuyini ukubethela?

Ukubethela kuyinqubo lapho ulwazi luguqulwa lube ikhodi engachazwa kuphela yilabo abanokhiye ofanele. Inhloso yawo ukuvimbela ukufinyelela kudatha ebucayi ngabadlali abangagunyaziwe.

Kunezinhloso ezine eziyinhloko okufanele noma yiluphi uhlobo lokubethela luzifeze:

• Ukuyimfihlo: Abantu abagunyaziwe kuphela abangafinyelela ulwazi.
• Ubuqotho: Iqinisekisa ukuthi idatha ayizange ishintshwe phakathi nenqubo yokudlulisela.
• Ukufakazelwa ubuqiniso: Ivumela ukuthi uqinisekise ubunikazi babaxhumanisi.
• Ukunganqabi: Ivimbela umthumeli ukuthi angaphika ukuthi uthumele umlayezo.

Izinhlobo eziyinhloko zokubethela

Kunezindlela ezahlukene zokubethela, kodwa ezisetshenziswa kakhulu zihlukaniswe ngokubethela okuhambisanayo kanye nokungalinganiyo . Zombili zifeza injongo efanayo, kodwa ziyahlukahluka endleleni ezisingatha ngayo okhiye. Ukuze uqonde kangcono le mibono, bheka umhlahlandlela wethu mayelana nokubethela okuhambisanayo kanye nokungalinganiyo.

Ukubethela okulinganayo

Ekubetheleni okulinganayo, umthumeli kanye nomamukeli basebenzisa ukhiye ofanayo ukubethela nokususa ukubethela ulwazi. Kuyindlela esheshayo nephumelelayo, kodwa inkinga yayo eyinhloko iwukuthi kudingeka ukwabelana ngokhiye ngokuphephile. Ukuze uthole ukuhlaziywa okuningiliziwe, ungafunda mayelana [nesihloko sokubethela okulinganayo].

Izibonelo zama-algorithms we-symmetric zifaka:

• I-AES (Izinga Lokubethela Okuthuthukisiwe): Ibhekwa njengenye yezindlela ezivikeleke kakhulu futhi isetshenziswa ezinhlelweni ezifana namanethiwekhi e-HTTPS nokubethela kwefayela.
• I-3DES (i-DES Kathathu): Ithuthukisa ukuphepha kwe-DES ngokusebenzisa i-algorithm izikhathi ezintathu kudatha.
• Izinhlanzi ezimbili: I-algorithm eguquguqukayo nesebenzayo esetshenziswa ezinhlelweni ezihlukene ze-cryptographic.

Ukubethela okungalingani

Ukubethela okungalingani kusebenzisa okhiye ababili abahlukene kodwa abahlobene ngokwezibalo: ukhiye womphakathi wokubethela kanye nokhiye oyimfihlo wokuqaqa ukubethela. Le ndlela iphephile kakhulu, njengoba ingadingi ukwabelana ngokhiye oyimfihlo, kodwa ihamba kancane futhi idinga izinsiza ezengeziwe zokubala . Isibonelo esivelele yi- algorithm ye-RSA.

Amanye ama-algorithms aziwayo yilawa:

• I-RSA: Ingenye yezindlela ezisetshenziswa kakhulu zokuvikela idatha ku-inthanethi.
• I-ECC (I-Elliptic Curve Cryptography): Inikeza ukuvikeleka okuphezulu ngamaphasiwedi amafushane kanye nokusetshenziswa okuphansi kwezinsiza.
• U-Diffie-Hellman: Isetshenziselwa ukushintshanisa ukhiye ovikelekile kumanethiwekhi omphakathi.

Ukusetshenziswa kwe-encryption ekuphileni kwansuku zonke

Ukubethela kutholakala ezicini eziningi zempilo yethu yedijithali. Ezinye izibonelo zihlanganisa:

• I-HTTPS: Ukuphequlula ku-inthanethi okuvikelekile kusekelwe kumaphrothokholi wokubethela avikela ukudluliswa kwedatha.
• Amanethiwekhi e-Wi-Fi: I-WPA ne-WPA2 zisebenzisa ukubethela ukuvikela ukuxhumana okungenantambo.
• Izinhlelo zokusebenza zemiyalezo: I-WhatsApp ne-Signal isebenzisa ukubethela kokuphela ukuya ekupheleni ukuze kuqinisekiswe ubumfihlo ezingxoxweni.
• Isitoreji samafu: Amasevisi esitoreji abethela idatha ukuze avikele ulwazi ekufinyeleleni okungagunyaziwe.

Ezweni lapho izinsongo zedijithali ziya ngokuya ziba yinkimbinkimbi, ukuqonda nokusebenzisa amasu okubethela kubalulekile ukuqinisekisa ukuphepha kolwazi lwethu. Kusukela ekuvikeleni amadivayisi omuntu siqu kuya ekuvikeleni izindawo zebhizinisi, ukuba nezindlela ezifanele zokubethela kusisiza ukuthi sigcine idatha yethu ivikelekile futhi sivimbele ukufinyelela okungagunyaziwe.

I-athikili ehlobene:

I-Quantum-Safe: Inselele yokuphepha enkathini ye-quantum computing