Dab tsi yog qhov txawv ntawm symmetrical thiab asymmetrical?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

Qhov sib txawv ntawm Symmetric thiab Asymmetric Encryption

Symmetrical encryption siv ib tus yuam sij uas yuav tsum tau muab sib koom ntawm cov neeg uas xav tau txais cov lus thaum asymmetrical encryption siv ib khub ntawm pej xeem tus yuam sij thiab tus yuam sij ntiag tug los encrypt thiab decrypt cov lus thaum sib txuas lus

Cov lus nug tseem yog, puas yog symmetric lossis asymmetric encryption zoo dua?

Feem ntau asymmetric encryption schemes muaj kev nyab xeeb dua vim lawv xav tau ob qho tib si pej xeem thiab tus yuam sij ntiag tug. Tsis yog. AES muaj kev nyab xeeb dua rau kev tawm tsam cryptanalytic dua li 512-ntsis RSA, txawm tias RSA yog asymmetrical thiab AES yog symmetrical.

Tsis tas li ntawd, 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.

Ib yam li ib tug yuav nug, dab tsi yog qhov txawv ntawm qhov sib txawv thiab asymmetric key cryptography?

Cov qhov sib txawv uas txawv symmetrical thiab asymmetric encryption yog tias symmetric encryption tso cai encryption thiab decryption ntawm cov lus nrog tib yam tus yuam sij . Ntawm qhov tod tes, asymmetric encryption siv pej xeem tus yuam sij rau cov encryption , thiab private tus yuam sij yog siv rau decryption.

Puas yog Caesar cipher symmetric lossis asymmetric?

Yeej, hauv ib symmetrical cryptosytem, tus sender thiab receiver siv tib tus yuam sij rau encrypt thiab decrypt cov lus. Cov Caesar cipher tau piav qhia saum toj no yog ib qho piv txwv zoo ntawm qhov no: ob tus neeg xa ntawv thiab tus txais siv tus yuam sij ntawm peb thaum encrypting thiab decrypting cov lus.