Video: Cov ntaub ntawv encryption key yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
A cov ntaub ntawv encryption key (DEK) yog hom tus yuam sij tsim los encryption thiab decrypt cov ntaub ntawv tsawg kawg ib zaug lossis tej zaum ntau zaus. Cov ntaub ntawv yog encrypted thiab decrypted nrog kev pab los ntawm tib DEK; Yog li ntawd, ib tug DEK yuav tsum tau muab khaws cia rau tsawg kawg ib lub sij hawm teev rau decrypting cov generated cipher ntawv.
Tom qab ntawd, dab tsi yog encryption ntawm cov ntaub ntawv?
Kev txhais lus ntawm cov ntaub ntawv mus rau hauv ib tug secret code. Encryption yog txoj hauv kev zoo tshaj plaws kom ua tiav cov ntaub ntawv kev ruaj ntseg. Nyeem ib encrypted cov ntaub ntawv, koj yuav tsum muaj kev nkag mus rau tus yuam sij zais lossis lo lus zais uas tso cai rau koj decrypt nws. Unencrypted cov ntaub ntawv yog hu ua cov ntawv dawb; encrypted cov ntaub ntawv yog hu ua cipher ntawv.
Kuj Paub, dab tsi yog tus yuam sij encryption rau wireless network? Wired Equivalent Privacy, lossis WEP, yog a kev ruaj ntseg raws tu qauv rau wireless networks. WEP xav tau Wireless Encryption Key kom nkag mus rau lub wireless network. Tus yuam sij yog encrypted thiab khaws cia ntawm lub router thiab ntawm txhua lub khoos phis tawj uas txuas nrog lub router.
Ib tug kuj yuav nug, dab tsi yog cov ntaub ntawv encryption thiab nws ua haujlwm li cas?
Encryption yog ib tug txheej txheem uas encodes ib cov lus lossis cov ntaub ntawv kom nws tsuas yog nyeem tau los ntawm qee tus neeg. Encryption siv ib qho algorithm rau scramble, los yog encryption , cov ntaub ntawv thiab tom qab ntawd siv tus yuam sij rau cov neeg tau txais kev pab kom tshem tawm, lossis txiav tawm, cov ntaub ntawv.
Tus yuam sij encryption zoo li cas?
Symmetrical key encryption yog siv rau encrypting cov ntaub ntawv loj npaum li cas. 256-ntsis AES cov yuam sij yog cov yuam sij sib npaug. Asymmetric, los yog pej xeem / ntiag tug encryption , siv ib khub ntawm cov yuam sij. Thaum asymmetrical tus yuam sij khub yog generated, pej xeem tus yuam sij feem ntau yog siv rau encryption , thiab private tus yuam sij feem ntau yog siv los decrypt.
Pom zoo:
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