Ib txoj kev sib txuas lus rau peb cov uas tsis zoo rau kev ua lej
WPA2 , WEP , 3DES, AES, Symmetric, Asymmetric, nws txhais tau tag nrho, thiab vim li cas koj yuav tsum tu?
Tag nrho cov nqe lus no muaj feem xyuam rau cov kev yees siv encryption siv los tiv thaiv koj cov ntaub ntawv. Encryption thiab cryptography feem ntau, tuaj yeem ua cov teeb meem los qhwv koj lub taub hau. Thaum twg kuv hnov lo lus cryptographic algorithm, kuv kos duab ib txhia xib fwb sau ntawv sib npaug ntawm daim kab dam, muab ib yam dab tsi rau nws tus kheej txog Medulla Oblongata li kuv ob lub qhov muag glaze los ntawm kev nyuaj siab.
Vim li cas koj yuav tsum tau tu txog encryption?
Qhov tseem ceeb tshaj plaws uas koj xav tau txog kev encryption yog vim qee zaus nws yog tib qhov ntawm koj cov ntaub ntawv thiab cov neeg phem uas tsis yog. Koj yuav tsum paub cov hauv paus thiaj li hais tias koj yuav, qhov tsawg tshaj plaws, paub tias koj cov ntaub ntawv raug tiv thaiv los ntawm koj lub txhab nyiaj, e-mail provider, thiab lwm yam. Koj xav kom lawv tsis siv cov khoom qub uas hackers twb tau tawg.
Kev siv encryption tsuas yog siv txhua qhov nyob hauv txhua hom kev siv. Lub hom phiaj tseem ceeb rau kev siv encryption yog tiv thaiv tsis pub lwm tus paub cov ntaub ntawv, los yog pab rau kev tiv thaiv ntawm lub meej mom ntawm cov lus los yog cov ntaub ntawv. Encryption yuav siv tau rau ob qho tib si ntawm 'transit', xws li thaum nws raug tawm ntawm ib qhov system mus rau lwm qhov, los yog cov ntaub ntawv 'so ntawm' DVD, USB thumb drive, lossis lwm qhov chaw nruab nrab.
Kuv tuaj yeem nqa koj cov ntaub ntawv keeb kwm ntawm cryptography thiab qhia rau koj paub Julius Caesar siv cov ntaub ntawv xa cov ntaub ntawv ua tub rog thiab tag nrho cov hom khoom, tab sis kuv paub hais tias muaj ntau tshaj li ib plhom lwm cov khoom nyob rau hauv net uas yuav ua kom muaj kev pom ntau tshaj kuv yuav muab, ces peb mam li hla txhua yam ntawd.
Yog tias koj zoo li kuv, koj xav kom koj txhais tes qias neeg. Kuv yog ib tug neeg kawm ntawv-ua-ua hom. Thaum kuv pib kawm txog encryption thiab cryptography ua ntej kuv tau siv qhov kev kuaj mob CISSP, kuv paub hais tias ntshe kuv "ua si" nrog daim ntawv nkag, ces kuv yeej yuav tsis to taub qhov teeb meem tom qab thaum muaj ib yam dab tsi yog encrypted los yog decrypted.
Kuv tsis yog tus lej, qhov tseeb, kuv phem heev ntawm kev ua lej. Kuv tsis tshua tu kom paub txog cov equations muab kev koom tes rau hauv qhov kev xaib encryption thiab whatnot, Kuv tsuas xav paub seb qhov teeb meem rau cov ntaub ntawv thaum nws tau encrypted. Kuv xav to taub qhov kev ua khawv koob tom qab nws tag nrho.
Li ntawd, Dab tsi yog qhov zoo tshaj plaws kom paub txog encryption thiab cryptography?
Thaum kawm txog kev kuaj mob, kuv tau ua qee yam kev tshawb fawb thiab pom tau tias ib qho ntawm cov cuab yeej zoo tshaj plaws los mus tau txais kev nqis tes ua kiag nrog kev txhim kho yog kuv daim ntawv thov hu ua CrypTool. CrypTool tau pib tsim los ntawm lub Deutsche Bank rov qab los hauv 1998 kom mob siab rau nws cov neeg ua hauj lwm kev nkag siab ntawm cryptography. Txij thaum ntawd los, CrypTool tau hloov zuj zus mus rau hauv cov khoom siv rau kev kawm thiab siv los ntawm lwm lub tuam txhab, thiab cov tsev kawm ntawv, thiab lwm tus uas xav kawm txog encryption, cryptography, thiab cryptanalysis.
Tus thawj Cryptool, tam sim no hu ua Cryptool 1 (CT1), yog Microsoft lub Windows-based application. Txij li thaum lub sij hawm ntawd, muaj ob peb lwm cov ntawv tso tawm xws li Cryptool 2 (tus qauv tshiab ntawm CrypTool, JCrypTool (rau Mac, Yeej thiab Linux), thiab raws li ib qho browser uas yog browser hu ua CrypTool-Online.
Tag nrho cov apps no muaj ib lub hom phiaj nyob rau hauv lub siab: ua ib yam dab tsi uas tsis yog-hom lej qiv zoo li kuv nkag siab.
Yog hais tias kev kawm encryption thiab cryptography tseem suab me ntsis rau ntawm sab tho txawv, tsis txhob ntshai, qhov zoo tshaj plaws ntawm ib yam dab tsi crypto txog yog qhov uas koj tau txais txoj cai-so. Cryptanalysis yog lo lus zoo rau txoj cai-rhuav tshem, los sis sim kom paub tseeb tias cov lus tshaj tawm yog tsis muaj qhov yuam kev. Qhov no yog qhov lom zem ib feem ntawm kev kawm tag nrho cov khoom no vim txhua tus nyiam puzzle thiab xav ua ib tug hacker ntawm xaiv.
Tus CrypTool folks txawm muaj qhov chaw sib tw rau would-be code-breakers hu ua MysteryTwister. Lub vev xaib cia koj sim koj koob hmoov rau cov ciphers uas tsuas siv cwj mem thiab ntawv, los yog koj tuaj yeem ua rau cov teeb meem nyuab dua uas yuav tsum tau siv qee qhov kev pab cuam nrog rau qee lub zog ntawm lub computer loj.
Yog tias koj xav tias koj tau txais dab tsi nws yuav siv sij hawm, koj tuaj yeem kuaj koj cov kev txawj ntse rau cov "Unsolved Ciphers". Cov ciphers tau soj ntsuam thiab tshawb nrhiav los ntawm qhov zoo tshaj plaws ntawm qhov zoo tshaj plaws rau xyoo thiab tseem tsis tau tawg. Yog hais tias koj tawg ntawm cov no ces koj yuav cia li khwv tau koj tus kheej qhov chaw nyob hauv keeb kwm raws li tus txiv leej tub los yog tus ciaj uas tau tawg lub uncrackable. Leej twg paub, koj yuav txawm koj tus kheej ib txoj haujlwm nrog NSA.
Lub point yog, encryption tsis tas yuav yog ib qho loj scary dab. Vim hais tias ib tug neeg tsis zoo ntawm kev ua lej (xws li kuv) tsis tau txhais hais tias lawv tsis nkag siab encryption thiab muaj kev lom zem kawm txog nws. Muab CrypTool ib zaug, koj yuav yog tus tom ntej zoo code-breaker tawm muaj thiab tsis txawm paub nws.
CrypTool yog pub dawb thiab muaj nyob ntawm CrypTool Portal