Deciphering yog ib qho ua kom txaus siab ntau tshaj plaws. Tom qab tag nrho, nws yog ib txwm yog li xav paub saib dab tsi raws nraim yog muab zais tom qab ib qho tshwj xeeb encoding. Ntxiv mus, muaj ntau ntau hom sib txawv ntawm ciphers. Yog li ntawd, kuj tseem muaj ntau txoj hauv kev los paub thiab txhais tau lawv. Qhov haujlwm uas nyuaj tshaj plaws yog los txiav txim seb qhov twg yog qhov tsim nyog los txiav txim siab qhov no lossis qhov kev daws teeb meem ntawd.
Cov Lus Qhia
Kauj ruam 1
Yog hais tias koj yuav mus decrypt ib qho kev cai encoding, nco ntsoov tias feem ntau cov ntaub ntawv yog encrypted los hloov cov ntawv ntawm cov niam ntawv. Sim txheeb xyuas cov tsiaj ntawv uas tshwm sim ua ke hauv hom lus thiab txuas rau lawv nrog cov ntawv koj muaj nyob hauv kev cai. Cov kws tshawb nrhiav tau ua nws yooj yim dua rau koj, thiab qee qhov ntawm lawv tau twb tas tas. Yog tias koj siv nws, nws yuav hloov kho sai ntawm txoj kev decryption. Nyob rau hauv txoj kev zoo sib xws, cov ciphers ntawm Polybius thiab Caesar tau daws nyob rau lub sijhawm.
Kauj ruam 2
Siv cov yuam sij kom nws yooj yim rau decrypt. Rau kev txiav txim siab, koj yuav xav tau cov kev xav zoo li qhov ntev ntawm tus yuam sij, uas koj tsuas yog txiav txim tau los ntawm xaiv cov tsiaj ntawv (saib cov kauj ruam 1). Tom qab koj xaiv qhov ntev ntawm koj tus yuam sij, koj tuaj yeem tsim pab pawg ntawm cov cim, uas tau sau nrog ib tsab ntawv. Thiab yog li maj maj rau tag nrho cipher yuav muab qhia rau koj. Tus txheej txheem no ua haujlwm hnyav thiab siv sijhawm ntau, yog li thov ua siab ntev.
Kauj ruam 3
Kuj sim txiav txim siab cov lus los ntawm kev xaiv ib lo lus, uas nrog lub siab ntawm qhov tshwm sim yuav tsum tshwm sim hauv cov ntawv no. Txav nws raws cov ntawv nyeem kom txog thaum nws hla nws tus kheej hauv cipher. Qhov no yuav txhais tau qee qhov ntawm qhov tseem ceeb. Tom qab ntawv decrypt cov ntawv nyeem hauv thaj chaw ib ncig ntawm tus yawm sij. Xaiv cov kev xaiv rau decrypting cov ntawv nyeem kom haum. Nws yuav tsum cuam tshuam nrog cov lus tseem ceeb thiab tsim nyog rau nws, i.e. phim cov ntsiab lus teb.
Kauj ruam 4
Nco ntsoov tias kev paub ntawm cov kev paub zoo tshaj plaws ntawm kev sau cov ntawv yuav muaj txiaj ntsig zoo rau koj kom ua tiav qhov kev zais encryption. Yog li, piv txwv li, yog tias koj muaj cov ntawv sau sau nyob rau xyoo pua thib 5 BC, tom qab ntawd nrog qhov siab ntawm qhov tshwm sim peb tuaj yeem hais tias nws tau muab sau rau hauv kev taug. Lub hauv paus ntsiab lus ntawm cov kev tawm tsam no yog ib txoj kev yooj yim pom zoo. Ntawd yog, cov tsiaj ntawv ntawm cov niam ntawv tsuas yog hloov chaw thiab tom qab ntawd, siv cov khoom hloov puag ncig, tau siv rau daim ntawv hauv qhov tsis zoo. Txhawm rau txiav txim siab qhov lus, qhov tseem ceeb yog txhawm rau kho kom rov qab qhov loj me ntawm qhov khoom puag ncig no.
Kauj ruam 5
Cim tau cov digital ciphers uas siv kev siv lej. Ib txoj hauv kev nyiam yog siv qhov kev xav ntawm qhov tshwm sim. Thiab hauv Hnub nyoog Nruab Nrab, kev siv encryption siv cov cim cim lej tau nqa tawm los ntawm kev rov ua dua thiab siv cov duab sib dhos. Cov no yog cov lej uas cov lej tau sau nyob hauv lub hlwb nrog cov lej keeb kwm ib txwm muaj. Raws li txoj cai, lawv pib nrog 1. Cov lus zais ntawm cov xwm txheej magic yog tias txhua tus lej hauv nws nyob rau hauv cov lej ntawm txhua kem lossis kab, lossis kab pheeb ces muab tib tus lej.
Kauj Ruam 6
Coj mus rau hauv tus account qhov tseeb tias cov ntawv nyeem rau decryption yog nyob rau hauv xws li xwmfab raws li tus lej xov tooj. Sau cov ncauj lus ntawm kab ntawv kab ntawv los ntawm kab thiab tau txais cov ntawv sau uas koj xav tau decipher. Thiab tsuas yog tom qab ntawd, los ntawm kev dhau cai, xaiv cov kev xaiv uas xav tau encryption.
