Algorithms nokuti date encryption. Symmetric encryption algorithms. RSA encryption algorithm. Des encryption algorithm. Sarudza encryption algorithm

In yedu kombiyuta zera vanhu kuramba anoramba kuchengeta mashoko akanyorwa nemaoko kana papepa, vachisarudza havo kuita zvemagetsi magwaro. Uye kana vasati kuba pepa kana yematehwe, asi ikozvino ihosha kupinda zvemagetsi ruzivo. Pachavo sezvo algorithms date encryption dzave kubvira panguva yakare. Vanhu vakawanda vava vaisarudza encrypt ruzivo rwavo rwakasiyana, kuitira kuti vawane chete munhu ruzivo. Asi ngationei sei kunoratidzwa yedu nyika.

Ndechipi date encryption gadziriro?

Kutanga kuona kuti vanomiririra cryptographic hurongwa zvavo. Nehasha kutaura, ichi chinhu chinokosha algorithm pakunyora mashoko, iro raizova rinongonzwisiswa mumwe denderedzwa vanhu.

Mupfungwa iyi, mutorwa zvose anoona, vanofanira (pfungwa, zviri) sokuti maturo akagadzirwa vatambi. Verenga kutevedzana anogona chete munhu anoziva mitemo nzvimbo yavo. Sezvo muenzaniso nyore chaizvo, unogona kuona kuti encryption algorithm pamwe chiperengo mashoko Somuenzaniso, kudzokera mberi. Chokwadi, ichi ndicho chinyakare, unogona kufunga. Chirevo ndechokuti kana uchiziva mitemo hwokupinda, nokudzosa epakutanga havana kushanda.

Nei izvozvo?

Chii zvose anokwira inenge haumanikidzwi kutsanangura. Tarirai, nokuti kuwanda ruzivo kusiiwa mararamiro ekare, zvino encrypted. Kana vekare aisada isu kuziva, kana akanga zvose zvaitwa, kuti murume aikwanisa kuzvishandisa chete kana achida nenhanho kukura - asi unogona chete zvokufungidzira.

Zvisinei, kana tiri kutaura pamusoro yanhasi, mashoko kuchengeteka yazova rimwe chainetsa. Nditongerei woga, nokuti pane magwaro akawanda zvakachengetedzwa chete, izvo dzimwe hurumende havadi kushandisa, vangani chakavanzika mazano sezvo michina mitsva. Asi ichi zvose zviri, pedyo uye yakakura, Chinangwa chikuru vanonzi hackers, ari chaiwo racho.

Totaura kunotiyeuchidza mumwe chete mashoko ava chaiwo misimboti yebasa Natana Rotshilda: ". Ndiani muridzi mashoko, muridzi wenyika" Uye kuti Ndokusaka mashoko zvakakodzera kudzivirira kubva yokunzvera maziso, saka kuti iye haana kushandisa mumwe munhu kuti zvinangwa zvoudyire yavo.

Cryptography: pokutangira

Zvino, asati kukurukura chaipo mamiriro kuti ane encryption algorithm, zvishoma svetuka kupinda nyaya, namazuva iwayo, kana sayenzi yakanga kuchangotanga.

Zvinofungidzirwa kuti unyanzvi dzokuaviga date vanobishairira akatanga kuva zviuru makore anoverengeka munhambo yedu. Ukuru rwunoverengerwa kuti sevaSumer vekare, Mambo Soromoni uye vapristi veIjipiti. Chete pave paya vakanga chete Runic kutaurwa uye zviratidzo zvakafanana. Asi chii Zvinofadza: dzimwe nguva chinyorwa encryption algorithm (kureva, vari waitaura zvaifanira kuitwa panguva) yakanga kuti chete yekare Sumerian ecuneiform rimwe hunhu aigona kureva tsamba kwete chete chete, asiwo yose shoko, pfungwa kana kunyange pfungwa. Nokuda dudziro iyi aya kunyange ano cryptographic gadziriro kubvumira kudzorera yepakutanga chitarisiko upi acho, zviri zvachose hazviiti. Kutaura mutauro wemazuva ano, zviri zvikuru akura, zvino sezvo runoratidzwa, symmetric encryption algorithms. Ivo vanogara vari voga.

The ano nyika: mhando encryption algorithms

Kana kudzivirira zvakavanzika Data munyika yanhasi, iwo anofanira kugara mazuva apo makombiyuta havana kuzivisa vanhu. Tisingatauri akanga sei mapepa zvikuru hwakatamisirwa masayendisiti, kana chete Templars, kuedza kuvanza magwaro wechokwadi akavazivisa zivo, zvinokosha kuyeuka kuti kubvira kwaita dambudziko kutaurirana anenge chete hwakawedzera kuderera.

Zvino, zvichida, anozivikanwa kupfuura mudziyo anganzi German Cipher muchina panguva World kwepiri akadana "kutadza kunzwisisa", iro rinoshandurwa kuti Chirungu rinoreva "chakavanzika." Zvakare, izvi muenzaniso sei symmetric encryption algorithms kushandiswa, musimboti chiri kuti shifrovschik uye cryptanalysts vanoziva kiyi (algorithm), pakutanga ndikarangarira kuvanza mashoko.

Nhasi, kwakadaro cryptosystem rinoshandiswa pose pose. Muenzaniso kupfuura unoshamisa unogona kunzi Somuenzaniso, AES256 encryption algorithm, inova international mureza. Kubva nemaonero kombiyuta mazwi zvinoita kuti kushandisa kiyi kureba 256 matomu. Kazhinji, ano encryption algorithms vano- siyana, uye akavakamura kunogona nehasha huviri pakufara makirasi: symmetric uye asymmetric. Vari, zvichienderana kuenda nzvimbo, zvino kushandiswa chaizvo chaizvo. Pakusarudza encryption algorithm anoenderana mabasa uye nzira nokupora mashoko kwayo kwepakutanga chimiro. Asi chii musiyano pakati pavo?

Symmetric uye asymmetric encryption algorithms: chii musiyano

Zvino ngationei rudzii inokosha musiyano pakati hurongwa hwakadaro uye nhungamiro pamusoro iyo kunobva chikumbiro chavo uchidzidzira. Sezvo zviri pachena, kuti encryption algorithms vari chokuita geometrical Dzidziso symmetry uye asymmetry. Zvazvinoreva zvino uye kutsanangurwa.

Symmetric encryption algorithm of, yakatanga muna 1977, zvinoratidza kuvapo kiyi chete kuti anofungidzirwa kuzivikanwa mapato maviri hanya. zviri nyore kushandisa uchiziva kiyi, ndizviite, kuverenga chete maturo akagadzirwa vatambi, ikasara, saka kutaura, ari verengeka chimiro.

Uye ndezvipi asymmetric encryption algorithms? Pane kiyi maviri anoshandiswa, ndiko kuti encode ruzivo repakutanga anoshandisa munhu decrypt zvirimo - mumwe, uye harisi zvakakodzera kuva chete, kana panguva iyoyo vakanga vari Coding uye decoding mativi. Nokuti mumwe nomumwe wavo chete. Saka, mumwe mukuru chaizvo dhigirii vose makiyi kunze kupinda ruoko rechitatu. Zvisinei, inobva ezvinhu aripo, hackers zhinji vanoba ichi mhando imwe dambudziko uye havasi. Chimwe chinhu - kuwana chaizvoizvo kiyi (nehasha kutaura, mumwe pasiwedhi), izvo anokodzera decrypt humboo. Asi nzira inogona kuva vazhinji kuti kunyange kombiyuta zvikuru ano kuchaita kubata pavo emakore. Sezvakataurwa, hapana nyika iripo makombiyuta kuti Hack kupinda kwaari uye kuwana chii anonzi "wiretapping" haagoni uye havazokwanisi mumakumi emakore anotevera.

Chinonyanya inozivikanwa uye raiwanzoshandiswa encryption algorithms

Asi kare kombiyuta nyika. Zviri kupa zvinokosha encryption algorithms pakudzivirira mashoko pamusoro kuitika padariro kukura kombiyuta uye Mobile rwokugadzira?

Munyika dzakawanda, of facto mwero iri AES cryptographic ezvinhu pahwaro 128-ikakuruma kiyi. Zvisinei, muna zvakafanana naro pacho rinoshandiswa algorithm RSA encryption, izvo kunyange akarondedzera encryption uchishandisa pachena (pachena) kiyi zvisinei ndechimwe chezvinhu rakavimbika. Izvi, Sezvineiwo, akaratidza vose vaikudzwa nyanzvi sezvo hurongwa pachayo hakubvi chete pamusoro date encryption asiwo pakuchengetedza kuvimbika mashoko. Kana mangwanani kukura, kuti izvo zvinoreva kuti Des encryption algorithm, zviri tariro yechinyakare, uye oedza kuritsiva zvakatangwa muna 1997. Rakanga ipapo anoritsanangura, itsva uye akura (Advanced) encryption mureza AES (kutanga 128-yati kiyi, uye ipapo - aine 256-ikakuruma kiyi).

RSA encryption

Zvino isu omerera RSA zvigadzirwa iyo chokuita asymmetric encryption hurongwa. Ngatitii mumwe munhu anotumira mumwe ruzivo encrypted pamwe algorithm ichi.

Kuti encrypt tora mbiri zvakakwana vazhinji X uye Y, vari ipapo akaverenga kwavo chigadzirwa Z, anonzi module. Uyezve vamwe extraneous akasarudzwa nhamba A, izvo anogutisa mamiriro: 1

Chii chinoitika kana munhu zvacho? Yatumira zvinowanisa munhu ciphertext, akasarudzwa F, pamwe kwokutanga shoko M, zvichiteverwa Exponentiation A chokuwanziridza module uye Z: F = M ** A * (Mod Z). Ndakaitirwa muenzaniso nyore ndiko kuverenga: M = F ** B * (Mod Z). Nehasha kutaura, zvose zvinoitwa idzi kuderedzwa kuti pavakwe simba chete. The ichocho unoshanda Ipfungwa pakusika digital siginicha, asi mukana wokuti vanhu vanga pano zvikuru kuoma. Kuti tidzivise ichizadza inodzidzisa musoro nemasvomhu, zvinhu zvakadai havazogari zvaigoverwa.

Ndingadzidzei kutaura, kana tiri kutsvaga yemberi, vasingakwanise kuti decipher zvakapfuura. Kana kutarira nyika kwemireniyumu kwedu, tinogona kuona kuti zvakafanana mambo weRoma Gayo Yuliy Tsezar mune mamwe magwaro ake vakashandisa symmetric encryption algorithms. Zvakanaka, kana uchitarisa Leonardo da Vinci, saka zvose zviri zvimwe kwete pachayo kubva pakuziva kuti mumunda cryptography, murume ane upenyu akafuka mhando chifukidziro chakavanzika, rakapfuura modernity wayo kwemazana emakore.

Kusvikira zvino, vanhu vazhinji havana kupa zororo kuna vanonzi "Mona Lisa Smile," umo chinhu chinokwezva, kuti murume ano haasi kukwanisa kunzwisisa. Sezvineiwo, pamufananidzo noruremekedzo kune vamwe vatambi (muziso mapfekero, uye zvichingodaro. D.) achangobva kuwanikwa kuti dzinoratidza zvakajeka kuti izvi zvose rine zvimwe encrypted shasha guru mashoko nhasi, nhamo, kutora isu kwete. Asi isu hatina kunyange nezvemipiro nekuve pamwero mukuru zvivako, iro vakakwanisa kutsausa kunzwisisa wefizikisi nguva.

Chokwadi, dzimwe pfungwa kurerekera chete chokuti kazhinji, rave Zvisinei ashandisa vanonzi "yendarama chikamu",, uye hazviiti kupa kiyi nezvose yakakura chitoro zivo, iro vakatenda kana tisina kunzwisisa, kana akarasikirwa nokusingaperi. Kunenge cryptography anoramba kuitwa Zvaifadza rakawanda basa kunzwisisa kuti ano encryption algorithms vasingawanzotauri kuenda chero tichienzanisa uchishandisa nguva mararamiro ekare. Uyezve, kana nhasi pane vakawanda vaibvuma zvinotaurwa mashoko kuchengeteka, ndivo vakanga yaishandiswa kare, zvinosuruvarisa tiri dzisingambosvikiki zvakakwana uye isinganzwisisiki.

Uye chimwe chinhu. Pane dzisina kutenda kuti ruzhinji magwaro ekare haishandurike nekuti makiyi achiongorora zvaive zvavo kunyatsotevera kurindwa epachivande akafanana yeFreemasons, ivo Illuminati, uye zvichingodaro. D. Kunyange Templars vakasiya pavaida pano. Tingatii nezvezvinodiwa yasara zvachose dzisingambosvikiki raibhurari Vatican? Regai vanounganidza huru kutibatsira makarekare ikoko? Vanamazvikokota vakawanda vari kurerekera kune shanduro iyi kudavira kuti Vatican nemaune achimunyima ruzivo urwu kubva kuruzhinji. Like kana kwete, hapana munhu anoziva. Asi chinhu chimwe chokwadi - rekare cryptography wemuTesitamende hapana nzira muduku (uye zvichida kupfuura) nezvaishandiswa mune yanhasi kombiyuta nyika.

panzvimbo imwe epilogue

Pakupedzisira zvinofanira kutaurwa kuti ikoko zvakurukurwa, kwete zvose zvinoumba kuitika cryptographic hurongwa uye unyanzvi kuti kushandisa. Chokwadi ndechokuti kakawanda aizofanira kutungamirira zvakaoma kwemasvomhu Masvomhu uye chipo Masvomhu, umo vakawanda vanoshandisa nyore kuenda musoro kuruka. Imboona muenzaniso tsananguro RSA algorithm, kuziva kuti zvose uchaona zvizhinji yakaoma.

Chinhu chikuru - kunzwisisa uye kunzwisisa, saka kutaura, mumwoyo yacho. Zvakanaka, kana pamusoro pezvatinotaura ndedzipi hurongwa ano, kupa yokuchengetera zvakavanzika mashoko nenzira iri nyore nhamba duku vanoshandisa, hapana sarudzo. Kunyange zvazvo paine zvakawanda cryptographic gadziriro, zvakafanana RSA uye Des algorithms vari pachena yokurasikirwa AES chaizvo. Zvisinei, vakawanda mafomu ano akagadzirirwa kuti zvikuru dzakasiyana pakati anodawo mugadziriro, kushandiswa iri AES (sezvingatarisirwa zvichienderana application uye mudziyo). Asi pano Ndiyo "kunze komutemo" Kushanduka cryptosystem ichi, kuti akariisa zvinyoronyoro, vazhinji, kunyanya havaoni ayo, nehana. Asi yose, kunobva kuti pane nhasi, vanoshandisa zhinji hazvizovi zvakaoma kunzwisisa kuti cryptographic date encryption hurongwa, nei vari kudiwa uye sei avanoshandira.