KwamfutocinSoftware

Dubawa zanta da asalin dũkiyõyinku, abin da yake da shi?

Mutane da yawa masu amfani da kwamfuta a kan lokaci, a kan kusa idon sani, tambayar game zanta-asalin dũkiyõyinku. Suna da ake kira da checksum. Mene ne wannan? Abin da kuke bukata? Yadda lasafta wadannan guda yawa?

definition

Checksum aka ce wasu darajar, wanda aka lasafta ga data ta wajen musamman lissafi mai tsauri. Nufa zanta da asalin dũkiyõyinku - dubawa da mutunci data lokacin watsa. Mafi na kowa lissafi mai tsauri ga lissafi - MD5, CRC32 da kuma SHA-1. Checksums kuma za a iya amfani da su kwatanta sets na bayanai a kan wadanda ba daidaitawa, kamar yadda zartar, domin ganewa na ƙwayoyin cuta a kan kwamfutarka.

A shahararsa na yin amfani da wannan hanya ya sami asali daga gaskiya cewa gwajin ne sauki yi a dijital kayan aiki, aiki tare da binary tsarin na lissafi. Yana nazarin ba tare da matsala da kuma shi ne mai girma domin gano kurakurai da cewa suna lalacewa ta hanyar gaban amo a data hanyoyi.

Algorithms don dubawa

A MD5 algorithm ba kawai amfani don tabbatar da mutuncin da bayanai, amma kuma yana ba da wata dama don samun wani fairly m ganowa, wanda aka sau da yawa amfani a lokuta inda guda ana samu a kwamfuta fayiloli. Saboda haka, babu wani kwatanta da abinda ke ciki, da kuma su zanta da asalin dũkiyõyinku.

CRC32 algorithm aka yi amfani da archiving shirye-shirye. Yana tsaye a matsayin "cyclic redundancy code".

SHA-1 shikenan lissafin ya samu aikace-aikace a cikin tabbaci na data mutunci, wanda aka yi wa lodi ta wajen BitTorrent shirin.

misali

Alal misali, mai amfani yake so ya shigar da tsarin aiki, ko wasan a kan PC. Yana downloads da image kuma yana so ya tabbatar da cewa mutunci fayil domin da canja wurin kome aka rasa. A mafi sauki hanyar yin wannan - gwada zanta da sauke fayil, da yawa bayar da marubucin. Idan sun zo daidai, da image ba ya dauke da kurakurai. To, idan zanta Naira Miliyan Xari daban-daban fayiloli, shi wajibi ne don tsotso sake, saboda akwai wani rashin cin nasara.

Wannan na farko hanya ne wani m awo da ba daidai ba aikin rataye. Running shi, za ka iya tabbata cewa shigarwa na aiki tsarin, shirye-shirye, ko kuma wasanni zai zama daidai.

A wadannan za su bayyana mai amfani, copes tare da lissafi da kuma tabbaci daga checksums.

HashTab shirin: duba zanta Naira Miliyan Xari

Wannan mai amfani ne da wani plugin cewa integrates a cikin tsarin aiki da ake amfani a lokatai na bukata. Yana za a iya sauke daga official website cikakken kyauta a cikin nau'i na wani shigarwa fayil. Girkawa na shirin sosai da ilhama.

Bayan kafa da kaddarorin kowane fayil zai gabatar da wani sabon ƙarin shafin saboda kirga da checksum. By tsoho, za su iya lasafta a mafi uku lissafi mai tsauri da aka bayyana a sama.

Yadda za a duba zanta Naira Miliyan Xari? Don yin wannan, a cikin "Kwatanta" filin to saka da adadin da aka nuna da marubucin. Idan da sauke fayil an samu nasarar gwada for amincin, a kore checkmark. In ba haka ba, mai amfani zai ga wani ja giciye. A wannan yanayin, shi ne shawarar zuwa download na file sake.

Saituna a kan "zanta Naira Miliyan Xari fayiloli" tab za ka iya canza idan ka danna kan da ya dace abu. Bude Zabuka taga, inda yana yiwuwa a kafa da ake so nuni checksums ga tabbaci da kuma tantance al'amurra. Domin da duk abin da hujjõji, shi ne shawarar zuwa Tick akwati cewa ba ka damar nuna checksums Ƙaramin baki.

Saboda haka, aikin ne mai sauqi tare da wannan shirin. Tun da shi ma iya saba masu amfani don gane.

MD5 fayil Checker Shirin

Wannan mai amfani ne kuma sauke daga hukuma shafin, amma shi ba ya bukatar kafuwa. Mu dai bukatar gudu da shi. Yana amfani da wannan sunan ga tabbaci algorithm. Lokacin da sauke fayil kana so ka kwafa da allo mai rike takarda zanta Naira Miliyan Xari da asali sa'an nan kuma saka shi a cikin tabbaci filin. A mataki na gaba - zaɓi fayil cewa mai amfani yanã son ya gwada for mutunci. Bayan danna kan button "Duba" zai karɓi saƙon da sakamakon abin da za a gaya ko checksum daga cikin fayil ko fayil lalace kuma akwai wani wasa wasa.

A ci gaba da yiwuwar yin lissafi ne da mai amfani da MD5 Naira Miliyan Xari da wani fayil a kwamfutarka.

ƙarshe

Saboda haka, sai aka dauke da kalmar "checksum". Ya zama a sarari da ya sa aka yi amfani da. Ga talakawan mai amfani da wannan ne, mai sauƙi zaɓi don duba fayil mutunci da kuma yarda da asali. amfani utilities aka bayyana a gare kirga da kuma gwama zanta da asalin dũkiyõyinku. Na farko shi ne iya kwatanta daban-daban yawa, da kuma na biyu daya kawai shikenan lissafin, amma shi ba ya bukatar kafuwa, wanda yana da muhimmanci a cikin rashi na shugaba yancin.

Idan za ka shigar da tsarin aiki, ko wani software samfurin, tabbatar da duba shawarar zanta da asalin dũkiyõyinku, bayan sauke duk shigarwa fayiloli. Wannan zai ajiye lokaci mai yawa, mafi mahimmanci, jijiyoyi.

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