Afufuze chete limanena: ndichiyani?

Ambiri owerenga kompyuta nthawi, pa womdziwa pafupi, kufunsa za hasi-limanena. Iwo amatchedwa checksum. Ndi chiyani icho? Kodi mukufuna? Kodi masamu ndalama zomwezi?

tanthauzo

Checksum Akuti mtengo, amene ndi kuchita masamu kuti deta kudzera mwa ma aligorivimu wapadera. Cholinga chete limanena - poona kukhulupirika kwa deta pa HIV. The ma aligorivimu ambiri chifukwa mawerengedwe - MD5, CRC32 ndi akuti sha-1. Checksums Angagwiritsidwenso ntchito kuyerekeza waika deta pa sanali pazikhala kufanana monga applicable chifukwa kudziwika mavairasi pa kompyuta.

Kutchuka kwa ntchito njira zichokela ku chakuti kuyesedwa ndi zovuta kuzitsatira zipangizo digito, ntchito ndi bayinare dongosolo la mawerengedwe. Iwo kusanthula popanda vuto ndi lalikulu kupeza zolakwika zimene zimapangidwa ndi kukhalapo kwa phokoso mu njira deta.

Ma aligorivimu kwambiri poona

The MD5 aligorivimu sikuti ntchito kutsimikizira kukhulupirika kwa deta, komanso amatipatsa mwayi kupeza dzina mwachilungamo odalirika, amene amagwiritsidwa ntchito pa nthawi imene omwewo pa owona kompyuta. Choncho, palibe kufanana kwa nkhani, ndi chete limanena awo.

CRC32 aligorivimu ntchito mapulogalamu archiving. Yaima monga "ozungulira redundancy kachidindo".

Akuti sha-1 aligorivimu wapeza ntchito ku yotsimikiza umphumphu deta, amene akuvutika mwa dongosolo BitTorrent.

Mwachitsanzo

Mwachitsanzo, wosuta akufuna kukhazikitsa dongosolo opaleshoni kapena masewera pa PC wanu. Iwo Downloads chithunzi ndipo amafuna kuonetsetsa kuti umphumphu wa file kuti ndi kulanda kanthu atayika. Chophweka njira kuchita zimenezi - choyerekezera chete a file dawunilodi, ndi mulingo operekedwa ndi wolemba. Ngati iwo mwamalunji, fano lilibe zolakwika. Chabwino, ngati chete ndalama owona osiyana, m'pofunika kutulutsa kachiwiri, chifukwa kunali kulephera.

Izi ndondomeko ya pulayimale ndi njira muyeso ndi zapachikika ntchito pachithunzichi. Akuthamanga izo, dziwani kuti unsembe wa zikugwira ntchito dongosolo, mapulogalamu kapena masewera adzakhala olondola.

Zotsatirazi pofotokoza zofunikira, uzigwirizana ndi mawerengedwe ndi kutsimikizira checksums.

HashTab pulogalamu: fufuzani chete ndalama

zofunikira izi ndi pulogalamu yowonjezera kuti integrates mu opaleshoni dongosolo ndi ntchito nthawi yakusowa. Iwo akhoza dawunilodi ku pawebusaiti yovomerezeka mwamtheradi mfulu mlandu mu mawonekedwe a file yowalongera unsembe. Khazikitsa Pulogalamuyi mwachilengedwe kwambiri.

Pambuyo kuika katundu aliyense file udzaonetsera latsopano tsamba zina ankatha kuwerengetsera checksum. Ndi kusakhulupirika, iwo masamu pa ambiri ma aligorivimu atatu tafotokozazi.

Kodi kuonanso chete ndalama? Kuti muchite izi "Yerekezerani" munda amaika kuchuluka zasonyezedwa ndi wolemba. Ngati file dawunilodi wakhala bwinobwino kuti aone lodalirika, ndi checkmark wobiriwira. Apo ayi, wosuta adzaona mtanda wofiira. Pankhaniyi, izo tikulimbikitsidwa download file kachiwiri.

Zikhazikiko pa "owona chete ndalama" tsamba mungathe kusintha ngati inu alemba pa item yoyenera. Tsegulani Mungasankhe zenera, kumene kuli zotheka kufunika checksums anasonyeza kuti yotsimikiza ndi kuwunika. Pofuna kuti zonse zikhale bwino bwino, izo tikulimbikitsidwa kuti bango ndi checkbox kuti amalola kusonyeza checksums lowercase.

Choncho, ntchito ndi zosavuta ndi pulogalamu imeneyi. Popeza ngakhale ogwiritsa wosadziwa kumvetsa.

MD5 failo tchesi Program

zofunikira chimenechi dawunilodi ku malo boma, koma sikutanthauza unsembe. Tikufuna kuti muthamange. Limagwiritsa ntchito dzina chimodzimodzi aligorivimu yachinsinsi. Pamene otsitsira file mukufuna kutengera kwa zomatula chete ndalama la apachiyambi ndiye amaika mu munda yotsimikiza. Chotsatira - sankhani file kuti wosuta akufuna ayese chifukwa cha kukhulupirika. Pambuyo kuwonekera pa batani "Chongani" adzalandira uthenga ndi chifukwa cha zomwe ukauzidwa ngati checksum wa file kapena wapamwamba chawonongeka ndipo palibe machesi machesi.

A kuthekera zina ndi kuwerengera zofunikira pa MD5 Uwerenge file chilichonse pa kompyuta.

Pomaliza

Kotero, ankaona kuti mawu akuti "checksum". Zinadziwika chifukwa imagwiritsidwa ntchito. Pakuti wosuta pafupifupi ili ndi njira zosavuta onani file wokhulupirika ndi kugwilizana ndi wapachiyambi. zofunikira zothandiza yatchedwa kuti kuwerengetsa ndi kuyerekezera chete limanena. Woyamba akhoza kuyerekeza mosiyanasiyana, ndipo chachiwiri chimodzi chokha aligorivimu, koma sikutanthauza unsembe, chimene chiri chofunika, pakalibe ufulu woyang'anira.

Ngati mukupita kukhazikitsa dongosolo opaleshoni kapena mapulogalamu mankhwala, onetsetsani kuti analimbikitsa chete limanena pambuyo otsitsira owona onse unsembe. Izi adzapulumutsa nthawi yambiri ndi, Chofunika kwambiri, misempha.