Video: Private key encryption ua haujlwm li cas?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Yuav rov qab: Public keycryptography tso cai rau ib tug neeg xa lawv pej xeem key hauv qhov qhib, tsis ruaj ntseg channel. Muaj phooj ywg pej xeem key tso cai rau koj encryption lus rau lawv. Koj tus yuam sij ntiag tug yog siv los decrypt cov lus encrypted rau koj.
Kuj kom paub yog, koj puas tau encrypt nrog pej xeem lossis tus yuam sij ntiag tug?
Cov ntaub ntawv encrypted nrog lub public key tau tsuas yog decrypted nrog cov tus yuam sij ntiag tug , thiab cov ntaub ntawv encrypted nrog lub private key tau tsuas yog decrypted nrog cov pej xeem key . Public key encryption Nws tseem hu ua asymmetrical encryption . Nws yog dav siv, tshwj xeeb tshaj yog rau TLS / SSL, uas ua rau HTTPS ua tau.
Tsis tas li ntawd, tus yuam sij ntiag tug ua haujlwm li cas? Private Key . Cov tus yuam sij ntiag tug yog a tus yuam sij zais cia uas yog siv los decrypt cov lus thiab tog paub nws qhov kev sib pauv lus. Nyob rau hauv txoj kev cai, a tus yuam sij zais cia yog qhia nyob rau hauv kev sib txuas lus kom pab encryption thiab decryption cov lus, tab sis yog hais tias tus tus yuam sij ploj lawm, lub kaw lus yuav void.
Kuj kom paub, tus yuam sij ntiag tug tuaj yeem siv rau kev encryption?
Private key encryption yog daim ntawv ntawm encryption qhov twg tsuas yog ib leeg xwb tus yuam sij ntiag tug tuaj yeem nkag mus thiab decrypt cov ntaub ntawv. Nws yog txheej txheem ceev txij li nws siv ib ib tus yuam sij . Txawm li cas los xij, tiv thaiv ib qho tus yuam sij tsim ib tus yuam sij kev tswj qhov teeb meem thaum sawv daws siv cov yuam sij ntiag tug . Cov tus yuam sij ntiag tug tej zaum yuav raug nyiag los yog xau.
Leej twg khaws tus yuam sij ntiag tug?
Kev lees paub hauv ntiaj teb online vam khom rau pej xeem key cryptoography qhov twg a tus yuam sij muaj ob ntu: a tus yuam sij ntiag tug khaws cia los ntawm tus tswv thiab a pej xeem key koom nrog lub ntiaj teb no. Tom qab lub pej xeem key encrypts cov ntaub ntawv, tsuas yog cov tus yuam sij ntiag tug tuaj yeem decrypt nws.
Pom zoo:
Vim li cas symmetric encryption sai dua asymmetric encryption?
Rau cov txheej txheem encrypt / decrypt lub luag haujlwm, symmetrical algorithms feem ntau ua tau sai dua li lawv cov asymmetrical counterparts. Qhov no yog vim lub fact tias asymmetric cryptography yog loj heev inefficient. Symmetric cryptography yog tsim los rau kev ua haujlwm zoo ntawm cov ntaub ntawv loj
Yuav ua li cas encryption ua haujlwm quizlet?
Tus neeg xa ntawv sau cov lus yooj yim thiab encrypts nws siv tus yuam sij zais cia. Cov lus encrypted yog xa mus rau tus txais, uas muaj peev xwm decrypt cov lus siv tib tus yuam sij zais cia. Asymmetric Key Encryption ua haujlwm li cas? Tus neeg xa ntawv sau cov lus thiab encrypts nws nrog tus yuam sij pej xeem
AES encryption thiab decryption ua haujlwm li cas?
Encryption ua haujlwm los ntawm kev noj cov ntawv dawb thiab hloov mus rau hauv cov ntawv cipher, uas yog tsim los ntawm cov cim tsis zoo. Tsuas yog cov uas muaj tus yuam sij tshwj xeeb tuaj yeem decrypt nws. AES siv tus yuam sij symmetric encryption, uas suav nrog kev siv tsuas yog ib tus yuam sij zais cia rau cipher thiab decipher cov ntaub ntawv
Vim li cas lo lus symmetric siv nyob rau hauv symmetric key encryption?
Symmetric Encryption yog ob-txoj kev algorithm, vim hais tias tus lej algorithm yog thim rov qab thaum lub sij hawm decryption ntawm cov lus los ntawm tib tus yuam sij zais cia. Symmetric encryption, tseem nrov hu ua private-key encryption & secure-key encryption
Triple DES encryption ua haujlwm li cas?
Triple DES encryption txheej txheem Nws ua haujlwm los ntawm kev siv peb 56-ntsis yuam sij (K1, K2 thiab K3), thiab encrypting thawj zaug nrog K1, decrypting tom ntej nrog K2 thiab encrypting lub sijhawm kawg nrog K3. 3DES muaj ob-tus yuam sij thiab peb-tus yuam sij versions. Hauv ob qhov tseem ceeb version, tib lub algorithm khiav peb zaug, tab sis siv K1 rau thawj zaug thiab zaum kawg