Isithombe: I-SHA-1 Hash Algorithm – Ukubuka Konke Okubonakalayo Okulula

Kushicilelwe: Januwari 12, 2026 09:10:56 UTC
Igcine ukubuyekezwa: Januwari 10, 2026 19:48:43 UTC

I-infographic elula ukuyiqonda echaza ukugeleza okuphelele kwe-algorithm ye-SHA-1 hash kusukela kumyalezo wokufaka kuya enanini lokugcina le-hash elingu-160-bit, ngaphandle kwemininingwane yobuchwepheshe ngokweqile.

Leli khasi lihunyushwe ngomshini lisuka esiNgisini ukuze lenze lifinyeleleke kubantu abaningi ngangokunokwenzeka. Ngeshwa, ukuhumusha ngomshini akukabi ubuchwepheshe obuphelele, ngakho-ke amaphutha angenzeka. Uma uthanda, ungabuka inguqulo yokuqala yesiNgisi lapha:

SHA-1 Hash Algorithm – Simplified Visual Overview

I-infographic yokwakheka komhlaba ekhombisa indlela i-algorithm ye-SHA-1 hash ecubungula ngayo idatha yokufaka nge-padding, i-block processing, imisebenzi ye-hash ephindaphindwayo, futhi ikhiqize umphumela we-hash ongu-160-bit.

Izinguqulo ezitholakalayo zalesi sithombe

Amafayela ezithombe atholakalayo ukuze alandwe ngezansi awacindezelwe kakhulu futhi anesisombululo esiphezulu - futhi ngenxa yalokho, ikhwalithi ephezulu - kunezithombe ezifakwe ezihlokweni nasemakhasini akule webhusayithi, ezilungiselelwe kangcono usayizi wefayela ukuze kuncishiswe ukusetshenziswa komkhawulokudonsa.

Usayizi ojwayelekile (1,536 x 1,024)

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JPEG (321 KB)

Usayizi omkhulu (3,072 x 2,048)

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Usayizi omkhulu kakhulu (4,608 x 3,072)

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Usayizi omkhulu kakhulu (6,144 x 4,096)

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Usayizi omkhulu ngokwe-comic (1,048,576 x 699,051)

Isalayisha... ;-)

Incazelo yesithombe

Isithombe siwumfanekiso obanzi, ogxile endaweni enesizinda esiluhlaza okwesibhakabhaka esihlanzekile kanye nezinto ezigqamile, ezihlukile kakhulu ezenzelwe ukuqondakala kalula. Phezulu, isihloko esikhulu sifunda ukuthi "SHA-1 HASH ALGORITHM", esichaza ngokucacile isihloko sokubonakala. Ukuhlelwa kugeleza kusuka kwesobunxele kuye kwesokudla, kuqondise umbukeli ezigabeni zomqondo zenqubo ye-hashing.

Ngakwesobunxele kunesigaba esibhalwe ukuthi "INPUT MESSAGE". Ngaphansi kwale lebula kukhona isithonjana sedokhumenti esilula esimele idatha yokuqala. Isihloko esincane esifana nokuthi "Original Data" sichaza ukuthi lolu ulwazi olunikezwe ku-algorithm. Ngezansi kwaso, unxande ophuzi oyindilinga obhalwe ukuthi "Padding & Splitting" ukhomba phansi enqwabeni yama-rectangle amancane, anemibala abhalwe ukuthi "Message Blocks". La ma-block abonisa ngokusobala ukuthi umyalezo wokuqala ulungisiwe futhi uhlukaniswe izingxenye eziningi ngaphambi kokucutshungulwa okwengeziwe.

Imicibisholo evela kumabhulokhi emiyalezo ijika iye endaweni ephakathi ye-infographic enesihloko esithi "PROCESSING STAGES". Lesi sifunda esiphakathi sizungezwe uhlaka olunemigqa ukukhombisa ukuthi kuyinqubo yangaphakathi ephindaphindwayo. Ngaphakathi kwale ndawo kunamabhokisi amaningana amakhulu abhalwe ukuthi "HASH FUNCTIONS", ngalinye lihlotshiswe ngezithonjana zegiya elincane ukuphakamisa ukubalwa. Lawa mabhokisi axhunywe ngemicibisholo, akha uchungechunge oluvela kwesobunxele kuya kwesokudla. Ngaphezulu kwawo kukhona ibha ebhalwe ukuthi "LOOP" enemicibisholo ebuyela emuva, eqinisa umqondo wokuthi isethi efanayo yokusebenza isetshenziswa ngokuphindaphindiwe kubhulokhi ngayinye yedatha. Ngaphansi kwamabhokisi, ilebula efana nethi "Compress & Mix" ifingqa injongo yalezi zigaba ngaphandle kokucwaninga imininingwane yobuchwepheshe.

Ngezansi kwesigaba sokucubungula kukhona ibheji elivundlile elivelele elibhalwe ukuthi "64 ROUNDS", elihambisana nochungechunge olufushane lwezinombolo ezimbili ezifana nokuthi "0101 1100 1010..." kanye negama elithi "Iterations". Lesi sici siveza ngokubonakalayo ukuthi i-algorithm idlula emijikelezweni eminingi yangaphakathi, kodwa umklamo ugwema ukudalula imininingwane yokusetshenziswa ebuthakathaka.

Ngakwesokudla kwesithombe kukhona ingxenye ebhalwe ukuthi "FINAL HASH OUTPUT". Izikwele ezinhlanu ezincane ezi-orenji ezibhalwe ukuthi A, B, C, D, kanye no-E fan phansi ngemicibisholo egobile ibe unxande omkhulu wegolide oyindilinga. Lesi sitsha sokugcina sinesihloko esithi "RESULTING HASH" futhi sifaka umbhalo othi "160-bit Hash Value" ukukhombisa usayizi womkhiqizo. Imicibisholo ehlanganayo igcizelela ukuthi wonke amanani esimo sangaphakathi ahlangana abe yi-digest eyodwa, enobude obungaguquki.

Sekukonke, i-infographic isebenzisa imibala ehambisanayo, ukuthayipha okukhulu, kanye nemicibisholo ecacile eqondisa indlela ukwethula inqubo ye-SHA-1 njengokugeleza okulula: kusukela kumyalezo wokufaka, ngokulungiselela kanye nokucubungula okuphindaphindiwe, kuya enanini elilodwa le-hash eliphumayo. Umklamo uhlala usezingeni eliphezulu ngamabomu, okwenza ufanelekele izimo zemfundo ngaphandle kokuthembela emininingwaneni engaba yiphutha yezinga eliphansi.

Isithombe sihlobene: Isibali sekhodi sehashi SHA-1