Cov txheej txheem:
Video: Dab tsi yog qhov txawv ntawm cipher thiab Cypher?
2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47
Raws li lub npe qhov sib txawv ntawm cipher thiab cypher
yog tias cipher yog tus lej cim thaum cypher yog ( cipher ).
Tsis tas li ntawd, dab tsi yog cipher hauv rap?
“A cypher los yog cipher yog ib qho kev sib sau ua ke ntawm rappers , beatboxers, thiab/los yog break-dancers nyob rau hauv lub voj voog, nyob rau hauv thiaj li yuav jam music ua ke. Lub sij hawm tseem muaj xyoo tsis ntev los no los txhais tau tias cov neeg coob coob uas tsim nyob ib puag ncig kev sib ntaus sib tua, suav nrog cov neeg saib thiab cov saib.
Kuj Paub, Cypher ua haujlwm li cas? Thaum siv a cipher cov ntaub ntawv qub yog hu ua plaintext, thiab daim ntawv encrypted li ciphertext. Los ntawm seb lawv ua haujlwm ntawm cov cim ntawm cov cim feem ntau ntawm ib qho ruaj khov (block ciphers), lossis ntawm cov kwj deg ntawm cov cim (streamciphers).
Ib yam li ntawd, qhov txawv ntawm cipher thiab code yog dab tsi?
Cov qhov sib txawv ntawm a cipher thiab a code yog:a cipher hloov cov lus ntawm tsab ntawv los ntawm tsab ntawv, thaum a code converts tag nrho cov ntsiab lus los yog kab lus mus rau lwm cov lus los yog zauv. TheRossignols 'Great Cypher tau siv los ntawm Louis XIV ntawm Fabkis hauv 1600s thiab yog ib qho piv txwv ntawm tus nom tswv.
Dab tsi yog qhov txawv ciphers?
Hom Cipher
- AMSCO (lub sij hawm lub sij hawm 8-12 kab sib sib zog nqus)
- AUTOKEY (40-55 tsab ntawv)
- BACONIAN (25-txoj lus plaintext siab tshaj plaws)
- BAZERIES (150-250 tsab ntawv)
- BEAUFORT (dav ntawm lub sijhawm 10-15 kab sib sib zog nqus)
- BIFID (125-150 tsab ntawv)
- CADENUS (lub sijhawm tsis tshaj 6)
- CHECKERBOARD (60-90 khub)
Pom zoo:
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