Ib tus lej, lossis cryptographic algorithm, yog txhais tau tias hloov pauv cov ntaub ntawv los ntawm daim ntawv nyeem tau (tseem hu ua cov ntawv nyeem) mus rau daim ntawv tiv thaiv (tseem hu ua ciphertext ciphertext Ciphertext tseem hu ua encrypted lossis encoded cov ntaub ntawv vim tias nws muaj ib daim ntawv ntawm cov ntsiab lus tseem ceeb uas tsis tuaj yeem nyeem tau los ntawm tib neeg lossis lub khoos phis tawj yam tsis muaj tus lej cim los txiav txim nws. https://en.wikipedia.org › wiki › Ciphertext
Ciphertext - Wikipedia
), thiab rov qab mus rau daim ntawv nyeem tau. Hloov cov ntawv dawb rau ciphertext yog lub npe hu ua encryption, whereas hloov ciphertext rau plaintext hu ua decryption.
Dab tsi yog 3 lub ntsiab ntawm cryptographic algorithms?
Muaj peb chav kawm dav dav ntawm NIST-pom zoo cryptographic algorithms, uas yog txhais los ntawm tus lej lossis hom cryptographic yuam sij uas siv nrog txhua tus
- Hash ua haujlwm.
- Symmetric-key algorithms.
- Asymmetric-key algorithms.
- Hash Functions.
- Symmetric-Key algorithms rau encryption thiab decryption.
Tus algorithm twg yog siv hauv cryptography?
Tus Txheej Txheem Txheej Txheem Zoo Tshaj Plaws (AES) yog cov txheej txheem kev ntseeg siab raws li tus qauv los ntawm tsoomfwv Meskas thiab ntau lub koom haum. Txawm hais tias nws ua tau zoo heev hauv 128-ntsis daim ntawv, AES encryption kuj siv cov yuam sij ntawm 192 thiab 256 khoom rau hnyav-luag num encryption.
cryptoography nrog piv txwv yog dab tsi?
Cryptography yog kev tshawb fawb ntawm kev tiv thaiv cov ntaub ntawv los ntawm kev hloov pauv mus rau hauv hom kev nyab xeeb. … Ib qho piv txwv ntawm kev nkag siab yooj yim yog cov lus zais uas cov ntawv hloov nrog lwm tus cim. Txhawm rau txiav txim siab cov ntsiab lus encrypted, koj yuav xav tau ib daim phiaj lossis lub rooj uas txhais tau tias cov ntawv hloov pauv li cas.
Yuav ua li cas lub cryptographic algorithm ua haujlwm?
Ib tug cryptographic algorithm, los yog cipher, yog ib tug lej muaj nuj nqi siv nyob rau hauv lub encryption thiab decryption txheej txheem. Lub cryptographic algorithm ua haujlwm ua ke nrog tus yuam sij - ib lo lus, tus lej, lossis kab lus - txhawm rau nkag mus rau cov ntawv dawb. Tib daim ntawv dawb nkag mus rau cov ntawv ciphertext sib txawv nrog cov yuam sij sib txawv.
