Dab tsi yog qhov txawv ntawm qhov encryption algorithm thiab tus yuam sij?
Dab tsi yog qhov txawv ntawm qhov encryption algorithm thiab tus yuam sij?

Video: Dab tsi yog qhov txawv ntawm qhov encryption algorithm thiab tus yuam sij?

Video: Dab tsi yog qhov txawv ntawm qhov encryption algorithm thiab tus yuam sij?
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Algorithm yog pej xeem, paub los ntawm tus sender, receiver, attacker thiab txhua leej txhua tus paub txog encryption . Ntsiab ntawm qhov tod tes yog tus nqi tshwj xeeb uas siv los ntawm koj nkaus xwb (thiab tus txais kev pabcuam hauv Symmetric Encryption ). Ntsiab yog qhov ua rau koj encrypted cov lus tshwj xeeb los ntawm cov uas siv los ntawm lwm tus.

Tsuas yog li ntawd, dab tsi yog qhov tseem ceeb hauv encryption algorithm?

Hauv cryptoography , a tus yuam sij yog ib daim ntawm cov ntaub ntawv (ib qho parameter) uas txiav txim siab qhov ua haujlwm ntawm cov ntaub ntawv cryptographic algorithm . Rau encryption algorithms , a tus yuam sij qhia meej txog kev hloov pauv ntawm cov ntawv dawb rau hauv ciphertext, thiab rov qab rau kev decryption algorithms.

Ib tug kuj yuav nug, hom tus yuam sij twg muaj ib tus yuam sij rau encryption thiab lwm tus yuam sij rau decryption? Nco qab tias muaj ob qho yooj yim hom ntawm encryption : symmetric algorithms: (tseem hu ua "secret tus yuam sij ”) siv tib yam tus yuam sij rau ob leeg encryption thiab decryption ; asymmetric algorithms: (tseem hu ua "public tus yuam sij ”) siv txawv cov yuam sij rau encryption thiab decryption.

Ntawm no, 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.

Dab tsi yog cipher thiab qhov tseem ceeb?

A cipher algorithm yog cov qauv lej tsim tshwj xeeb los ua kom pom tseeb tus nqi thiab cov ntsiab lus ntawm cov ntaub ntawv. Qhov no tus yuam sij yog siv los encrypt cov ntaub ntawv, thiab qhov ntawd tus yuam sij los yog complementary tus yuam sij yuav tsum tau decrypt cov ntaub ntawv rov qab mus rau ib daim ntawv muaj txiaj ntsig.

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