Video: AES yog dab tsi hauv kev ruaj ntseg ntaub ntawv?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Advanced Encryption Standard, los yog AES , yog symmetric block cipher xaiv los ntawm US tsoom fwv los tiv thaiv cais cov ntaub ntawv thiab yog siv rau hauv software thiab kho vajtse thoob plaws ntiaj teb los encrypt cov ntaub ntawv rhiab heev.
Xav txog qhov no, AES encryption yog dab tsi nrog piv txwv?
Block cipher yog ib qho algorithm uas encrypts cov ntaub ntawv ntawm ib lub hauv paus. Qhov loj ntawm txhua qhov thaiv feem ntau yog ntsuas hauv cov khoom. AES , rau piv txwv , yog 128 ntsis ntev. Lub ntsiab lus, AES yuav ua haujlwm ntawm 128 me ntsis ntawm plaintext los tsim 128 me ntsis ntawm ciphertext. Cov yuam sij siv hauv AES encryption yog tib cov yuam sij siv hauv AES decryption.
Tom qab ntawd, lo lus nug yog, puas yog AES 128 tseem muaj kev nyab xeeb? AES - 128 muab ntau tshaj qhov txaus kev ruaj ntseg margin rau yav tom ntej foreseeable. Tab sis yog tias koj twb siv lawm AES -256, tsis muaj laj thawj hloov. Tseeb, Schneier tau sib cav yav dhau los tias AE- 128 yog, qhov tseeb, ntau dua ruaj ntseg uas AES , vim nws muaj lub sij hawm tseem ceeb zog dua AES -256.
Tsis tas li ntawd, AES encryption ua haujlwm li cas?
Encryption ua haujlwm los ntawm kev noj cov ntawv dawb thiab hloov mus rau hauv cipher ntawv, uas yog ua los ntawm seemingly random cim. Tsuas yog cov uas muaj tus yuam sij tshwj xeeb tuaj yeem decrypt nws. AES siv tus yuam sij symmetrical encryption , uas koom nrog kev siv tsuas yog ib tus yuam sij zais cia rau cipher thiab decipher cov ntaub ntawv.
Leej twg tsim AES encryption?
Vincent Rijmen
Pom zoo:
Dab tsi yog cov ntaub ntawv kev ruaj ntseg thiab kev tswj hwm kev tshwm sim SIEM system?
Cov ntaub ntawv kev nyab xeeb thiab kev tswj hwm qhov xwm txheej (SIEM) yog txoj hauv kev rau kev tswj hwm kev nyab xeeb uas sib txuas SIM (kev tswj hwm cov ntaub ntawv kev nyab xeeb) thiab SEM (kev tswj hwm kev nyab xeeb) ua haujlwm rau hauv ib qho kev tswj hwm kev ruaj ntseg. Lub acronym SIEM yog pronounced 'sim' nrog ib tug ntsiag to e. Download tau phau ntawv qhia no pub dawb
Kev tswj hwm hauv kev ruaj ntseg ntaub ntawv yog dab tsi?
IT kev tswj hwm kev ruaj ntseg yog qhov system uas ib lub koom haum tswj hwm thiab tswj IT kev ruaj ntseg (hloov los ntawm ISO 38500). Kev tswj hwm qhia txog lub luag haujlwm kev lav phib xaub thiab muab kev saib xyuas kom ntseeg tau tias cov kev pheej hmoo raug txo kom txaus, thaum kev tswj xyuas kom ntseeg tau tias cov kev tswj hwm raug siv los txo cov kev pheej hmoo
Dab tsi yog kev ruaj ntseg ruaj ntseg thiab muaj nyob rau hauv kev ruaj ntseg?
Kev ceev ntiag tug txhais tau hais tias cov ntaub ntawv, cov khoom thiab cov peev txheej raug tiv thaiv los ntawm kev tsis pom zoo thiab lwm yam kev nkag. Kev ncaj ncees txhais tau tias cov ntaub ntawv raug tiv thaiv los ntawm kev hloov pauv tsis tau tso cai los xyuas kom meej tias nws ntseeg tau thiab raug. Muaj txhais tau hais tias cov neeg siv tau tso cai nkag tau rau hauv cov tshuab thiab cov peev txheej uas lawv xav tau
Kev tswj hwm kev tswj hwm hauv kev ruaj ntseg ntaub ntawv yog dab tsi?
Kev tswj hwm kev nyab xeeb (tseem hu ua cov txheej txheem tswj hwm) feem ntau yog cov txheej txheem thiab cov cai uas tau muab tso rau hauv qhov chaw los txheeb xyuas thiab qhia cov neeg ua haujlwm hauv kev cuam tshuam nrog cov koom haum cov ntaub ntawv rhiab
Dab tsi yog qhov tseem ceeb ntawm kev siv kev coj ncaj ncees rau cov ntaub ntawv kev ruaj ntseg?
Rau cov kws tshaj lij kev ruaj ntseg cov ntaub ntawv, muaj ob lub hom phiaj tseem ceeb thaum nws los txog rau cov ntaub ntawv tseem ceeb: tiv thaiv nws thiab paub txog nws qhov chaw. Cov koom haum tsis tuaj yeem xav tias cov ntaub ntawv raug cai lossis tau txais los ntawm kev coj ncaj ncees