Video: Dab tsi yog hash encryption siv rau?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Hashing yog siv txhawm rau txheeb xyuas qhov ncaj ncees ntawm cov ntsiab lus los ntawm kev txheeb xyuas txhua qhov kev hloov kho thiab tom qab ntawd hloov mus rau a hash tso zis. Encryption encodes cov ntaub ntawv rau lub hom phiaj tseem ceeb ntawm kev tswj cov ntaub ntawv tsis pub lwm tus paub thiab kev ruaj ntseg. Nws yuav tsum muaj tus yuam sij ntiag tug kom thim rov qab ua haujlwm encrypted ntawv mus rau cov ntawv nyeem.
Yog li ntawd, qhov txawv ntawm hash thiab encryption yog dab tsi?
Hashing : Thaum kawg, hashing yog ib daim ntawv ntawm kev ruaj ntseg cryptographic uas txawv ntawm encryption . Qhov twg encryption yog ob kauj ruam txheej txheem siv thawj zaug encryption thiab tom qab ntawd decrypt cov lus, hashing condenses ib cov lus rau hauv ib qho irreversible taag-ntev tus nqi, los yog hash.
Ib yam li ntawd, vim li cas thiaj muaj peev xwm hash tsis siv rau kev encryption? Ib qho kom zoo dua ntawd hashing muaj dhau lawm encryption yog tias nws tsis yog txhais tau tias tig lub random tso zis ntawm lub hash rov qab mus rau hauv ib yam dab tsi pab tau, qhov twg encryption yog tsim los rau lub hom phiaj xwb. Yog ib tug tau tuav ntawm lub encryption key, nws yog tsis tseem ceeb rau decrypt cov ntaub ntawv.
Ib yam li ntawd, tib neeg nug, hash encryption ua haujlwm li cas?
Hashing algorithm. A hashing algorithm yog a cryptographic hash muaj nuj nqi uas maps cov ntaub ntawv ntawm random loj rau a hash ntawm ib qhov loj me. Lub tswv yim yooj yim yog siv qhov kev txiav txim siab algorithm uas siv rau hauv ib qho kev tawm tswv yim thiab tsim cov hlua ntev ntev txhua lub sijhawm. Yog li ntawd, tib lub tswv yim yuav ib txwm muab tib qhov tso zis.
Dab tsi yog hashes siv rau?
A hash kev ua haujlwm yog txhua yam haujlwm uas tuaj yeem ua tau siv rau daim ntawv qhia cov ntaub ntawv ntawm arbitrary loj rau taag-size qhov tseem ceeb. Cov nqi xa rov qab los ntawm a hash muaj nuj nqi hu ua hash tus nqi, hash codes, digests, los yog yooj yim hashs.
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