Video: DER file yog dab tsi?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
DER yog dab tsi ? Daim ntawv pov thawj digital ntaub ntawv tsim nyob rau hauv Cov Kev Cai Encoding Distinguished ( DER ) hom ntawv; muaj ib tug binary sawv cev ntawm daim ntawv pov thawj; feem ntau yog siv los khaws X. 509 daim ntawv pov thawj hauv pej xeem cryptography. Txhua tus qauv Web browsers lees paub cov ntawv pov thawj digital muab los ntawm cov vev xaib ruaj ntseg.
Ib yam li ntawd, tib neeg nug, DER hom ntawv yog dab tsi?
DER cov ntaub ntawv yog daim ntawv pov thawj digital hauv binary hom ntawv , es es tsis txhob ASCII PEM hom ntawv . A DER cov ntaub ntawv yuav tsum tsis muaj BEGIN/END cov nqe lus thiab yuav qhia garbled binary ntsiab lus. Ob daim ntawv pov thawj digital thiab tus yuam sij ntiag tug tuaj yeem nkag rau hauv DER format . DER feem ntau siv nrog Java platforms.
Tsis tas li ntawd, kuv yuav qhib daim ntawv pov thawj DER li cas? Koj xav tau ib tug haum software zoo li DER X509 encoded Daim ntawv pov thawj rau qhib a DER ntaub ntawv. Yog tsis muaj software tsim nyog koj yuav tau txais cov lus Windows "Koj xav li cas qhib cov ntaub ntawv no?" (Windows 10) lossis "Windows ua tsis tau qhib cov ntaub ntawv no" (Windows 7) lossis ib qho zoo sib xws Mac / iPhone / Android ceeb toom.
Ib yam li ntawd, qhov txawv ntawm PEM thiab Der yog dab tsi?
Encodings (tseem siv ua extensions) DER = Cov DER extension yog siv rau binary DER daim ntawv pov thawj encoded. PEM = Cov PEM extension yog siv rau ntau hom X. 509v3 cov ntaub ntawv uas muaj ASCII (Base64) armored cov ntaub ntawv ua ntej nrog a “-– BEGIN…” kab.
Qhov txawv ntawm DER thiab base64 yog dab tsi?
A DER cov ntaub ntawv yog X. 509 daim ntawv pov thawj digital encoded hauv binary – 1's thiab 0's. Base 64 yog binary-to-text encoding tswvyim, yog li PEM cov ntaub ntawv, uas yog a Base 64 encoded DER cov ntaub ntawv, yog tib yam X. 509 daim ntawv pov thawj, tab sis encoded nyob rau hauv cov ntawv nyeem, uas (nco ntsoov!) yog sawv cev raws li ASCII.
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