Pythagorean cipher

Mincemeat TEAM

Mayelana nalolu hlelo lokusebenza

I-Pythagorean cipher iyi-cryptosystem ye-cryptography yakudala, endala ngesikhathi kunezinye izinhlelo ezifana ne-Caesar cipher. Yachazwa ngabakwaPythagoras ngokusekelwe emfundisweni yomculo eyaqalwa uPythagoras, futhi yasetshenziswa kakhulu umbuso wamaGreki phakathi neMpi Yesibili YamaPunic.
NgokukaPlutarch, umbuso wamaRoma wawuncamela ukusebenzisa i-cipher kaKhesari ngoba yayilula kune-Pythagorean cipher, futhi nangenxa yokulinganiselwa kwalolu hlobo lwe-cipher ngenxa yenkinga ye-wolf yesihlanu, eyabangela amaphutha enqubweni yokubhala etholakala. kusuka ekuphambukeni kukakhefana wePythagorean. Incazelo yenqubo ingatholakala emsebenzini kaPlutarch, ngaphezu kokuqhathanisa ne-Spartan scytale cipher.
Ngokusho kwezinye izazi-mlando, le cipher yayidinga ama-cryptologists noma ababhali abanolwazi lwethiyori yomculo kanye nezindlebe zomculo ezifunde kakhulu. Futhi nakuba wawuvumela ukuba usakazwe ezindaweni ezikude kusetshenziswa izinsimbi zomculo ezihlukene zangaleso sikhathi, ezinye izinhlelo zazinqoba.
Isazi sefilosofi uPlato sibhekisela esiqeshini sezingxoxo zakhe ohlelweni olwandulele kulelo lukaPythagoras olusetshenziswa ama-Atlanteans. Ngisho nakuyo, kuphakanyiswa ithonya elisobala encazelweni nasekusetshenzisweni kwayo. Ngenxa yokuthi awekho amaphepha e-Atlantis, noma ngobukhona bayo bangempela, lesi sitatimende asikwazi ukuqinisekiswa.
Ukuthuthukiswa kwezinhlelo zokubhalwa komculo ezikhiqizwe ngeNkathi Ephakathi kwavumela lolu hlobo lwe-cipher yakudala ukuthi lusakazeke, ngaphezu kokuvumela ukwanda kokuhlukahluka. Kodwa ngokulinganayo, izinkinga ezitholakala esimweni esiwumphumela wokushuna kwePythagorean, zabangela izinkinga ukuba zihlale zivela ngesikhathi sokuqanjwa kwemfihlo, nakuba i-cryptogram yayidluliselwa ngokubhala kubasebenzi hhayi ngokukhipha imisindo kusetshenziswa insimbi yomculo. Ngaphezu kwalokho, ukudideka okuqhubekayo kumibandela yokubethela ngesikhathi lapho kwakungekho ukuvumelana okufana nokuphimisa nje. Ngaleso sikhathi zazingekho izindinganiso zomculo, futhi kwayixaka indlela yokubhala ngemfihlo nakuba zombili izinhlangothi zazinokhiye wokulinganisa kanye nenqubo.
Ngokweminye imibhalo, i-cryptosystem yayibalulekile ngesikhathi amaSulumane ehlasela i-Al-Andalus, isetshenziselwa ukudlulisa imiyalezo ebalulekile yezempi. Abanye ababhali besikhathi bangaleso sikhathi bayaqinisekisa ukuthi, ngenxa yokusatshalaliswa okuncane kwayo, kwakukhona amasiko amaningi ayengayiqapheli le ndlela yokubhala ngemfihlo, eyayidlala ngokuvuna ukuba amandla ama-cryptanalysts.
Ngesikhathi seRenaissance, ngenxa yokubukeka kwesimo esisha, i-Pythagorean cipher yayithandwa amanye ama-cryptogoles kune-Vigenère cipher. Kube nenkulumompikiswano evuthayo mayelana nokuba sengozini yako yomibili i-cryptosystems ekuhlaziyeni imvamisa, kanye nenani lama-cryptograms adingekayo ukuze kuqedwe noma iyiphi indlela. Iqiniso liwukuthi ubulula bezinhlelo zokushintsha zasendulo kwaba inzuzo enkulu kunenqubo esekelwe kuthiyori yomculo, eyayidinga ijika lokufunda elikhudlwana. Ngakolunye uhlangothi, ukudluliswa komlomo akuzange kwethulwe njengenzuzo, empeleni, bagcina bethumela imilayezo ngombhalo obhaliwe womculo. Okuphinde kwabonakala kuwukuphikisana uma kuqhathaniswa nencazelo yokuqala yenqubo ngokwemithombo ehlukahlukene.
ngokushesha, i-cipher ye-Pythagorean inentshisekelo yokufundisa kuphela, ifundwa njengesigaba sesethulo ngaphakathi kwe-cryptosystems yakudala. Kuyiqiniso ukuthi kunezazi ezithile eziphikisa ukuthi ngesikhathi ichazwa, kwakuyi-cryptosystem ethuthukisiwe ngesikhathi sayo futhi iqine kakhulu uma iqhathaniswa nezinye izindlela zanamuhla. Kodwa ngokulinganayo, kunabaningi abakholelwa ukuthi ubunkimbinkimbi bayo abulungiswanga, njengoba kunezinye izindlela ezilula nezishesha kakhulu ezinikeza ukuphepha okufanayo.