Daim duab rau sab laug qhia txog qhov ua ntawm Blowfish. Txhua kab sawv cev 32 ntsis. Lub algorithm khaws ob lub ntsiab lus tseem ceeb: 18-nkag P-array thiab plaub 256- nkag S-boxes.
Puas muaj S-boxes nyob rau hauv Blowfish algorithm?
Kev piav qhia: Muaj 4 s-boxes nrog 256 qhov nkag txhua hauv cov tshuab blowfish algorithm.
Kev ua haujlwm ntawm S-box hauv Blowfish algorithm yog dab tsi?
Hauv kev zais zais, S-box (hloov-lub thawv) yog ib qho tseem ceeb ntawm cov ntsiab lus tseem ceeb symmetrical uas ua hloov pauvHauv thaiv ciphers, lawv feem ntau siv los ua kom pom kev sib raug zoo. nruab nrab ntawm tus yuam sij thiab cov ntawv ciphertext, yog li ua kom Shannon cov khoom tsis meej pem.
Npauj npaim ntev npaum li cas?
Blowfish yog qhov encryption algorithm, lossis cipher, tshwj xeeb yog thaiv cipher. Blowfish muaj 64-ntsis thaiv qhov loj thiab nws txhawb nqa qhov ntev ntawm 32-448 khoom.
Yuav ua li cas hom algorithm yog Blowfish?
Blowfish yog a symmetric encryption algorithm, txhais tau tias nws siv tib tus yuam sij zais cia rau ob qho tib si encrypt thiab decrypt cov lus. Blowfish kuj yog ib qho thaiv cipher, txhais tau hais tias nws faib cov lus mus rau hauv qhov ntev ntev thaiv thaum encryption thiab decryption.
