Taki moni hae: he aha te mea te reira?

He maha ngā kaiwhakamahi rorohiko ki runga i te wā, i runga i mohio ofi, tono e pā ana ki hae-moni. E huaina ratou te Checksum. He aha te mea te reira? He aha e hiahia ana koe? Pehea tatau enei taua moni?

whakamāramatanga

Checksum mea te etahi uara, tatau nei mo te raraunga i te tikanga o hātepe motuhake. moni hae Whāinga - te taki i te tapatahi o ngā raraunga i roto i te tuku. Ko te hātepe tino noa mō te tātaitanga - MD5, CRC32 me SHA-1. taea hoki te whakamahi Checksums ki whakatairite huinga o raraunga i runga i te ōrite-kore, rite hāngai ana, mo te rapunga o wheori i runga i tō rorohiko.

Ko te rongonui o te whakamahi o tenei tikanga ahu i te meka e he ngāwari ki te whakatinana i roto i te taputapu mamati, mahi ana ki te rua te whakamātautau pūnaha o tātaitanga. tātari te reira, kahore raruraru me he nui hoki te kimi hapa e kua meinga e te aroaro o ngangau i roto i te ara raraunga.

Hātepe mō te arowhai i

E kore te te hātepe MD5 whakamahia anake ki te manatoko i te tapatahi o te raraunga, engari homai ano hoki he wāhi ki te tiki i te pūtāutu tika pono, Kei te maha i whakamahia i roto i te wā e kitea te taua i reira i runga i te kōnae rorohiko. Ko te kupu, kahore he rite o nga tirotiro, me o ratou moni hae.

whakamahia CRC32 hātepe te i roto i te hōtaka whakapūranga. tu te reira i rite te "waehere hapanga huringa".

Kua kitea SHA-1 hātepe tono i roto i te whakaū o te tapatahi raraunga, e kua utaina e te tikanga o te hōtaka BitTorrent.

tauira

Hei tauira, e hiahia ana te kaiwhakamahi ki te tāuta i te pūnaha whakahaere kēmu ranei i runga i tō PC. tikiake te reira i te whakapakoko, me te hiahia ki te kia e ngaro te tapatahi o te kōnae i roto i te tikanga, me te kahore whakawhiti te. Ko te huarahi māmā ki te mahi i tenei - whakatairite i te hae o te kōnae tikiake, me nga moni e whakaratohia ana e te kaituhi. Ki te hāngai ratou, e kore e te whakapakoko i roto i hapa. Well, ki te te moni hae o ngā kōnae rerekē, he mea e tika ana ki te papu ano, no te mea i reira ko te kore.

Tenei tukanga māmā ko te mehua ārai ki tārewatanga hē mahi. Rere reira, ka taea e waiho e koe mohio e ka hei te tāutanga o te pūnaha whakahaere, hōtaka kēmu ranei tika.

Ko te whai ka whakaahua i te whaipainga, pakari ki te tātai me te whakaū o checksums.

hōtaka HashTab: tirohia Hash moni

Tenei whaipainga Ko te mono e whakauru ana ki roto ki te pūnaha whakahaere me te whakamahia i roto i nga wa o te hiahia. Ka taea te tikiake te reira i te paetukutuku e pā ana tino noa o te tiaki i roto i te puka o te kōnae tāuta. Tāuta i te hōtaka ko te tino pūmanawa.

I muri i ngā te āhuatanga o ia kōnae ka tapae he ripa atu hou mō te tātai i te Checksum. Na roto i te taunoa, ka kia tātai ratou i te hātepe te nuinga toru whakaahuatia ana i runga.

Me pēhea te ki te tirohia Hash moni? Ki te mahi i tenei i roto i te "Fakafehoanaki" mara ki te kōkuhu i te moni e whakaaturia ana e te kaituhi. Ki te mea kua pai kua whakamatauria te kōnae tīkina hoki motuhēhē, he tohutaki matomato. Kore, ka kite i te kaiwhakamahi i te ripeka whero. I roto i tenei take, e tūtohu ana ki te tiki ano te kōnae.

Tautuhinga i runga i te "kōnae moni hae" ripa koe e taea te huri ki te te pāwhiri koe i runga i te take e tika ana. Uakina te matapihi Kōwhiringa, te wahi e taea ki te whakaturia te checksums whakaatu hiahiatia mō te whakaū me te aro mātai. I roto i te tikanga ki te whai mārama katoa, e tūtohu ana ki te tohua i te pouakataki e taea ki a koe whakaatu checksums pūriki.

Ko te kupu, Ko te tino ngāwari ki tenei hōtaka te mahi. Mai taea ki te matau i te reira ara kaiwhakamahi ngawari.

Kōnae MD5 Kaitakitaki Program

Kei te tīkina tēnei whaipainga hoki i te pae mōhiohio, engari e kore e rapu utu i te reira tāutanga. Me tika tatou ki te rere i te reira. whakamahi te reira i te taua ingoa mo te whakaū hātepe papatono. A, no te tikiake i te kōnae e hiahia ana koe ki te tārua ki te moni papatopenga hae o te taketake me te ka kōkuhu reira i roto i te mara whakaū. Ko te mahi i muri mai - tīpako i te kōnae e hiahia te kaiwhakamahi ki te whakamātau hoki tapatahi. I muri te pāwhiri i runga i te pātene "Tirohia" Ka riro i te karere ki te hua o nei e kia korerotia ranei pakaru te Checksum o te kōnae te kōnae ranei kei a kahore he ōrite ōrite.

He atu taea ko ki te tātai i te whaipainga te moni MD5 o tetahi kōnae i runga i tō rorohiko.

mutunga

Na, ka whakaaro ai i te wā "Checksum". ka te reira mārama reira he aha te whakamahia. Hoki te kaiwhakamahi toharite ko te kōwhiringa ngāwari ki te tirohia tapatahi kōnae me te hanganga ture ki te taketake tenei. Kua taputapu whai hua whakaahuatia hoki te tātai me te whakatairite i te moni hae. taea ki te whakarite i te moni rerekē te tuatahi ko, me te tuarua kotahi anake hātepe, engari e kore e rapua e te reira tāutanga, i te mea nui i roto i te ngaro o ngā tika kaiwhakahaere.

Ki te haere koe ki te tāuta i te pūnaha whakahaere i tetahi atu hua pūmanawa ranei, kia mohio ki te tirohia moni hae tūtohutia i muri i te tikiake i te kōnae katoa tāutanga. Tenei ka whakaora i te rota o te wā me te, nui atu, ka raru ko.