Leej twg invented lub rail laj kab cipher?

2024 Tus sau: Lynn Donovan | [email protected]. Kawg hloov kho: 2023-12-15 23:47

Cov Rail laj kab Cipher yog invented nyob rau hauv ancient sij hawm. Nws tau siv los ntawm Greeks, leej twg tsim ib lub cuab yeej tshwj xeeb, hu ua scytale, ua kom cov lus encryption thiab decryption yooj yim dua. Tam sim no, nws feem ntau yog siv nrog ib daim ntawv.

Tom qab ntawd, ib tug kuj yuav nug, yuav ua li cas koj txiav txim siab ib tug rail laj kab cipher?

Cov ciphertext yog tom qab ntawd nyeem los ntawm kev sau cov kab saum toj kawg nkaus ua ntej, ua raws kab hauv qab, kom tau "DFNTEATALEEDHESWL". Txhawm rau encrypt cov lus siv lub Rail laj kab Cipher , koj yuav tsum sau koj cov lus hauv kab zigzag thoob plaws nplooj ntawv, thiab tom qab ntawd nyeem tawm txhua kab.

Kuj Paub, yog vim li cas ib tug ntshiab transposition cipher yog yooj yim lees paub? A ntshiab transposition cipher yog pom tau yooj yim vim nws muaj tib tsab ntawv frequencies raws li tus thawj plaintext. Cov transposition cipher tuaj yeem ua kom ruaj ntseg ntau dua los ntawm kev ua ntau tshaj ib theem ntawm kev hloov pauv . Qhov tshwm sim yog qhov nyuaj dua kev hloov pauv uas tsis yog yooj yim rov tsim dua.

Tsis tas li ntawd, lub laj kab laj kab cipher ua haujlwm li cas?

Cov rail laj kab cipher (qee zaus hu ua zigzag cipher ) yog ib transposition cipher uas jumbles li qhov kev txiav txim ntawm cov tsiaj ntawv ntawm cov lus siv ib tug yooj yim algorithm. Cov rail laj kab cipher ua haujlwm los ntawm kev sau koj cov lus ntawm lwm kab nyob rau ntawm nplooj ntawv, thiab tom qab ntawd nyeem tawm txhua kab hauv lem.

Route cipher yog dab tsi?

Cov Txoj Kev Cipher yog transposition cipher qhov twg yog tus yuam sij txoj kev ua raws li thaum nyeem ntawv ciphertext los ntawm qhov thaiv tau tsim nrog cov ntawv dawb. Cov ntawv sau yooj yim yog sau rau hauv kab sib chaws, thiab tom qab ntawd nyeem tawm raws li qhov txoj kev xaiv.