Vim li cas Triple de ruaj ntseg dua?
Vim li cas Triple de ruaj ntseg dua?

Video: Vim li cas Triple de ruaj ntseg dua?

Video: Vim li cas Triple de ruaj ntseg dua?
Video: Mob nrob qaum/ Mob duav yog vim li cas? 2024, Kaum ib hlis
Anonim

Txawm hais tias nws yog officially hu ua tus Triple Data Encryption Algorithm (3DEA), nws yog feem ntau feem ntau hu ua 3DES. Qhov no yog vim 3DES algorithm siv cov ntaub ntawv Encryption Standard (DES) cipher peb zaug los encrypt nws cov ntaub ntawv. 3DES tau tsim los ua ib qho ruaj ntseg dua Lwm txoj hauv kev vim yog DES qhov ntev me me.

Ib yam li ntawd, nws tau nug, yog Triple DES Ruaj Ntseg?

Zoo, yog thiab tsis yog. Triple DES siv 3 tus yuam sij sib txawv tseem xav txog ruaj ntseg vim tsis muaj leej twg paub qhov kev tawm tsam uas tawg tag nws kev ruaj ntseg mus rau qhov chaw uas nws muaj peev xwm tam sim no tawg nws. Triple DES nrog 3 tus yuam sij sib txawv tseem pom zoo los ntawm NIST raws li lawv cov lus pom zoo kawg hauv NIST SP 800-57.

Vim li cas AES thiaj ruaj ntseg dua? Advanced Encryption Standard ( AES ): AES cov ntaub ntawv encryption yog ib ntau lej zoo thiab elegant cryptographic algorithm, tab sis nws lub ntsiab lub zog nyob rau hauv cov kev xaiv rau ntau yam tseem ceeb lengths. AES tso cai rau koj xaiv 128-ntsis, 192-ntsis lossis 256-ntsis tus yuam sij, ua rau nws muaj zog dua li 56-ntsis yuam sij ntawm DES.

Raws li, yog vim li cas des tsis ruaj ntseg?

DES tsis ruaj ntseg . DES , Cov Ntaub Ntawv Encryption Standard, tuaj yeem tsis muaj xav tau ntev dua ruaj ntseg . Thaum tsis muaj qhov tsis txaus ntseeg loj hauv nws cov innards paub, nws yog qhov tsis txaus vim nws qhov tseem ceeb 56-ntsis luv dhau. Ib pawg ntawm cov kws tshaj lij cryptographers tau saib qhov ntev ntawm qhov tseem ceeb hauv 1996 daim ntawv.

Puas yog 3des ruaj ntseg dua AES?

AES yog ruaj ntseg dua lub DES cipher thiab yog tus qauv de facto ntiaj teb no. DES tuaj yeem tawg tau yooj yim vim nws paub qhov tsis zoo. 3 DES ( Triple DES ) yog variation ntawm DES uas yog ruaj ntseg dua li DES. AES tuaj yeem encrypt 128 me ntsis ntawm plaintext.

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