Yuav ua li cas symmetrical thiab asymmetric yuam sij siv ua ke?
Yuav ua li cas symmetrical thiab asymmetric yuam sij siv ua ke?

Video: Yuav ua li cas symmetrical thiab asymmetric yuam sij siv ua ke?

Video: Yuav ua li cas symmetrical thiab asymmetric yuam sij siv ua ke?
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Asymmetrical thiab symmetric encryption feem ntau yog siv ua ke : use ib asymmetrical algorithm xws li RSA kom ruaj ntseg xa ib tug neeg AES ( symmetrical ) tus yuam sij . Cov symmetric key hu ua kev sib kho tus yuam sij ; kev sib ntsib tshiab tus yuam sij tej zaum yuav raug xa rov qab raws sijhawm ntawm RSA. Txoj hauv kev no txhawb nqa lub zog ntawm ob qho tib si cryptosystems.

Xav txog qhov no, qhov twg peb tuaj yeem siv cov yuam sij symmetric thiab asymmetric?

Koj tsuas xav tau asymmetrical cryptoography thaum koj xav tau rau pauv cov ntaub ntawv nrog ib tus neeg tshwj xeeb uas koj tsis muaj ib tus yuam sij pauv nrog (thiab txawm tias tom qab ntawd, koj siv symmetrical thiab encrypt tus yuam sij asymmetrically nquag) los yog thaum koj xav tau rau kos npe rau ib yam dab tsi (hauv qhov xwm txheej twg koj encryption tus hash tus nqi asymmetrically).

Ib yam li ntawd, cov yuam sij symmetric sib koom li cas? Symmetric key cryptoography cia siab rau a muab tus yuam sij nruab nrab ntawm ob tog. Asymmetric key cryptography siv pej xeem-private tus yuam sij par ib tus yuam sij yog siv los encrypt thiab lwm yam los decrypt. Symmetrical cryptography muaj txiaj ntsig zoo dua thiab yog li tsim nyog rau encrypting / decrypting cov ntaub ntawv loj.

Hais txog qhov no, dab tsi yog kev sib xyaw ua ke thiab asymmetric key cryptography?

Combining Symmetric thiab Asymmetric Encryption . Tus neeg xa ntawv khaws cov neeg tau txais kev pom zoo tus yuam sij . Tus neeg xa xov retrieves cov pej xeem tus yuam sij los ntawm qhov chaw ntseeg siab, xws li Active Directory. 2. Tus xa khoom tsim tawm a symmetric key thiab siv qhov no tus yuam sij los encrypt cov ntaub ntawv qub.

Puas yog AES symmetric lossis asymmetric?

Yog ib yam tus yuam sij yog siv rau ob qho tib si encryption thiab decryption, cov txheej txheem tau hais tias yog symmetrical. Yog siv cov yuam sij sib txawv, cov txheej txheem txhais tau tias yog asymmetric. Ob qho ntawm feem ntau siv encryption algorithms hnub no yog AES thiab RSA.

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