Xyuas hash sums: yog dab tsi?

Muaj ntau computer cov neeg siv lub sij hawm, nyob rau closer acquaintance, nug txog hash-qhaub. Lawv hu ua cov checksum. Yuav ua li cas yog nws? Yuav ua li cas koj xav tau? Yuav ua li cas xam cov tib nqi?

txhais

Checksum yog hais tias tej yam muaj nuj nqis, uas yog xam rau cov ntaub ntawv los ntawm txoj kev tshwj xeeb algorithms. Purpose hash sums - xyuas lub sam xeeb ntawm cov ntaub ntawv thaum lub sij hawm kis tau tus mob. Cov feem ntau algorithms rau xam - MD5, CRC32 thiab sab.-1. Checksums kuj yuav siv tau los sib piv poob lawm ntawm cov ntaub ntawv nyob rau hauv qhov uas tsis yog-equivalence, raws li muaj, rau cov nrhiav kom tau ntawm cov kab mob nyob rau hauv koj lub computer.

Lub koob meej ntawm kev siv ntawm cov qauv no derives los ntawm qhov tseeb hais tias lub xeem yog ib qho yooj yim los mus siv nyob rau hauv cov cuab yeej siv, ua hauj lwm nrog cov binary system ntawm xam. Nws ntsuam tsis muaj teeb meem thiab yog zoo rau kev nrhiav uas tsis yog tshwm sim los ntawm lub xub ntiag ntawm cov suab nrov nyob rau hauv cov ntaub ntawv paths.

Algorithms kev kuaj

Lub MD5 algorithm yog tsis tsuas siv kom paub tseeb lub sam xeeb ntawm cov ntaub ntawv, tab sis kuj muab ib lub sij hawm kom tau ib tug ncaj txhim khu kev qha identifier, uas yog feem ntau siv nyob rau hauv tus neeg mob qhov twg tib yam yog pom nyob rau hauv computer cov ntaub ntawv. Yog li, yog tsis muaj kev sib piv ntawm tus txheem, thiab lawv hash qhaub.

CRC32 algorithm yog siv nyob rau hauv lub archiving cov kev pab cuam. Nws sawv raws li ib tug "cyclic redundancy code".

Sab.-1 algorithm tau pom daim ntawv thov nyob rau hauv lub pov thawj ntawm cov ntaub ntawv kev ncaj ncees, uas yog loaded los ntawm txoj kev BitTorrent kev pab cuam.

Piv txwv li

Piv txwv li, ib tug neeg xav rau nruab lub operating system los yog ua si rau koj lub PC. Nws downloads cov duab thiab cov xav kom paub tseeb tias lub sam xeeb ntawm cov ntaub ntawv nyob rau hauv kev txiav txim thiab lub hloov lwm lub tsev tsis muaj dab tsi yog ploj lawm. Qhov yooj yim txoj kev uas yuav ua li no - piv ib hash ntawm cov ntaub ntawv downloaded, thiab tus nqi yog muab los ntawm tus sau. Yog hais tias lawv coincide, cov duab tsis muaj kom raug. Zoo, yog hais tias tus hash sum ntawm txawv cov ntaub ntawv, nws yog tsim nyog los tso dua, vim hais tias muaj yog ib tug tsis ua hauj lwm.

Qhov no elementary txoj kev yog ib tug tiv thaiv kev ntsuas tawm tsam tsis yog ua hauj lwm hangs. Khiav nws, koj yuav tau nco ntsoov hais tias tus installation ntawm lub operating system, cov kev pab cuam los yog kev ua si yuav tsum muaj tseeb.

Cov nram qab no yuav piav txog cov nqi hluav taws xob, copes nrog lub xam thiab pov thawj ntawm checksums.

HashTab kev pab cuam: kos hash sum

Qhov no nqi hluav taws xob yog ib tug plugin uas integrates rau hauv lub operating system thiab yog siv nyob rau hauv lub sij hawm ntawm yuav tsum tau. Nws yuav tsum downloaded los ntawm cov nom lub website dawb kiag li xwb nyob rau hauv daim ntawv ntawm ib tug installation cov ntaub ntawv. Txhim kho cov kev pab cuam yog heev intuitive.

Tom qab teem lub zog ntawm txhua cov ntaub ntawv yuav qhia ib tug tshiab ntxiv tab rau xam cov checksum. Yog lub neej ntawd, lawv yuav tsum tau xam nyob rau feem ntau peb algorithms piav saum toj no.

Yuav ua li cas mus saib hash sum? Ua li no nyob rau hauv lub "Muab piv rau" teb mus tau ntxig cov nyiaj qhia los ntawm tus sau. Yog hais tias cov ntaub ntawv downloaded twb tau ntse mus kuaj rau authenticity, ib tug ntsuab checkmark. Txwv tsis pub, tus neeg siv yuav pom ib tug liab tus ntoo khaub lig. Nyob rau hauv cov ntaub ntawv no, nws yog pom zoo kom mus download tau cov ntaub ntawv dua.

Chaw nyob rau hauv "hash sum cov ntaub ntawv" tab koj yuav hloov yog hais tias koj tau nyem rau ntawm cov tsim nyog. Qhib lub Options qhov rais, qhov twg nws yog tau teem rau lub Desired zaub checksums rau pov thawj thiab kev soj ntsuam. Nyob rau hauv thiaj li yuav muaj txhua yam ntshiab, nws yog pom zoo kom zuam cov checkbox uas tso cai rau koj qhia rau checksums lowercase.

Yog li, lub chaw ua hauj lwm yog heev yooj yim nrog kev pab cuam no. Txij li thaum nws muaj peev xwm txawm inexperienced cov neeg siv kom to taub.

MD5 ntaub ntawv tub xam nyiaj Program

Qhov no nqi hluav taws xob kuj yog downloaded los ntawm cov nom site, tab sis nws tsis yuav tsum tau installation. Peb cia li yuav tsum tau khiav nws. Nws yuav siv lub tib lub npe rau pov thawj algorithm. Thaum daus cov ntaub ntawv koj xav kom luam rau ntawv los teev cia hash sum ntawm tus thawj thiab ces ntxig rau nws nyob rau hauv lub pov thawj teb. Cov kauj ruam tom ntej - xaiv cov ntaub ntawv uas tus neeg siv xav mus ntsuam xyuas rau kev ncaj ncees. Tom qab txhaj rau lub khawm "Xyuas" yuav tau txais ib cov lus nrog rau cov tshwm sim ntawm uas yuav tsum tau hais rau seb tus checksum ntawm cov ntaub ntawv los yog cov ntaub ntawv yog puas thiab yog tsis muaj match match.

Ib tug ntxiv tau yog xam cov nqi hluav taws xob lub MD5 sum ntawm tej ntaub ntawv nyob rau hauv koj lub computer.

xaus

Yog li ntawd, nws suav hais tias lub sij hawm "checksum". Nws los ua tseeb vim li cas nws yog siv. Rau qhov nruab nrab neeg siv qhov no yog ib qho yooj yim xaiv mus xyuas cov ntaub ntawv kev ncaj ncees thiab kev ua raws cai nrog tus thawj. pab tau hlauv taws xob tau piav rau xam thiab muab piv rau cov hash qhaub. Tus thawj yog tau los sib piv qhov txawv cov nqi, thiab lub thib ob tsuas yog ib qho algorithm, tab sis nws tsis yuav tsum tau installation, uas yog ib qho tseem ceeb nyob rau hauv lub qhaj ntawv ntawm cov thawj coj txoj cai.

Yog hais tias koj yeej yuav tau mus nruab ib lub operating system los yog lwm yam software khoom, nco ntsoov xyuas pom zoo hash qhaub tom qab daus tag nrho cov installation cov ntaub ntawv. Qhov no yuav txuag tau ib tug ntau ntawm cov sij hawm thiab, ceeb tshaj, qab haus huv.