Video: Vim li cas symmetric encryption sai dua asymmetric encryption?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Rau tus qauv encryption /decrypt ua haujlwm, symmetrical algorithms feem ntau ua tau ntau yam sai dua lawv asymmetrical cov neeg sib tw. Qhov no yog vim qhov tseeb tias asymmetric cryptography yog loj heev inefficient. Symmetric cryptography yog tsim los rau qhov ua tau zoo ntawm cov ntaub ntawv loj.
Yog li ntawd, puas symmetric encryption sai dua asymmetric?
Symmetric encryption feem ntau yog sai dua asymmetric encryption . Qhov ntawd yog qhov laj thawj tseem ceeb rau kev siv symmetric encryption nrog cov ntaub ntawv loj dua. Lub sij hawm sib txawv ntawm ob txoj kev yuav nce linearly raws li tus nqi ntawm cov ntaub ntawv nce.
Dab tsi yog qhov zoo ntawm kev siv asymmetric encryption tshaj symmetric encryption? Lub ntsiab qhov zoo ntawm symmetric encryption dhau asymmetric encryption yog tias nws ceev thiab ua tau zoo rau ntau cov ntaub ntawv; tus qhov tsis zoo yog qhov yuav tsum tau khaws cov tus yuam sij zais cia - qhov no tuaj yeem yog qhov nyuaj tshwj xeeb encryption thiab decryption tshwm sim nyob rau hauv ntau qhov chaw, yuav tsum tau cov tus yuam sij yuav tsum tau tsiv
Hauv qhov no, dab tsi ua rau asymmetric encryption zoo dua li symmetric encryption?
Symmetric encryption siv ib leeg tus yuam sij uas yuav tsum tau muab qhia rau cov neeg uas yuav tsum tau txais cov lus thaum asymmetrical encryption siv ib khub pej xeem key thiab ib tug private tus yuam sij rau encryption thiab decrypt cov lus thaum sib txuas lus. Asymmetric encryption yuav siv sij hawm ntau dua tshaj tus symmetric encryption.
Puas yog asymmetric encryption muab kev ncaj ncees?
Rau asymmetric encryption kom xa tsis pub leej twg paub, kev ncaj ncees , authenticity thiab non-repudiability, cov neeg siv thiab cov tshuab yuav tsum paub tseeb tias a pej xeem key yog qhov tseeb, tias nws yog tus neeg lossis lub koomhaum tau thov thiab nws tsis tau raug cuam tshuam lossis hloov los ntawm tus neeg thib peb siab phem.
Pom zoo:
Vim li cas thiaj siv kev txhim kho sai sai?
Qhov ntawd yog qhov laj thawj tseem ceeb vim li cas software xav tau cov qauv kev txhim kho zoo kom ua tau zoo los ntawm kev tsim mus rau kev tshaj tawm. Kev txhim kho sai ntawm daim ntawv thov tau tsim rau lub hom phiaj no - txhawm rau tsim cov qauv sai sai rau kev sim ua haujlwm thiab cov yam ntxwv, tsis tas yuav txhawj xeeb txog qhov khoom kawg yuav cuam tshuam li cas
Puas yog ECC symmetric lossis asymmetric?
ECC yog ib txoj hauv kev - cov txheej txheem ntawm cov txheej txheem rau cov cim tseem ceeb, encryption thiab decryption - ua asymmetric cryptography. Asymmetric cryptographic algorithms muaj cov cuab yeej uas koj tsis siv ib tus yuam sij - xws li hauv symmetric cryptographic algorithms xws li AES - tab sis tus khub tseem ceeb
Puas yog BitLocker symmetric lossis asymmetric?
Yog tias nkag siab raug los ntawm cov ntawv tshaj tawm no thiab nplooj ntawv Wikipedia rau BitLocker thiab TPM, los ntawm lub neej ntawd, BitLocker siv symmetric cryptography zoo li AES. Txawm li cas los xij, TPM muaj peev xwm ua tau RSA encryption. Muab hais tias tus yuam sij RSA khaws cia hauv TPM, vim li cas BitLocker tsis siv asymmetric encryption (piv txwv li, RSA)?
Vim li cas lo lus symmetric siv nyob rau hauv symmetric key encryption?
Symmetric Encryption yog ob-txoj kev algorithm, vim hais tias tus lej algorithm yog thim rov qab thaum lub sij hawm decryption ntawm cov lus los ntawm tib tus yuam sij zais cia. Symmetric encryption, tseem nrov hu ua private-key encryption & secure-key encryption
Dab tsi asymmetric encryption algorithm yog siv rau symmetric key pauv?
Qhov feem ntau siv symmetrical algorithm yog AES-128, AES-192, thiab AES-256. Lub ntsiab tsis zoo ntawm tus yuam sij symmetric encryption yog tias txhua tus neeg koom nrog yuav tsum tau pauv tus yuam sij siv los encrypt cov ntaub ntawv ua ntej lawv tuaj yeem decrypt nws