Isithombe: I-Adler-32 Hash Algorithm – Ukubuka Konke Komqondo
Kushicilelwe: Januwari 12, 2026 09:14:28 UTC
Igcine ukubuyekezwa: Januwari 9, 2026 22:13:43 UTC
Ukuboniswa okuhlanzekile nokulula ukuqonda kwe-algorithm ye-Adler-32 hash, okubonisa indlela ama-byte okufaka abuyekeza ngayo amanani amabili asebenzayo ahlanganiswa abe yi-checksum yokugcina.
Adler-32 Hash Algorithm – Conceptual Overview
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)
Usayizi omkhulu (3,072 x 2,048)
Usayizi omkhulu kakhulu (4,608 x 3,072)
Usayizi omkhulu kakhulu (6,144 x 4,096)
Usayizi omkhulu ngokwe-comic (1,048,576 x 699,051)
- Isalayisha... ;-)
Incazelo yesithombe
Isithombe siyisithombe esibanzi, esibheke endaweni enesihloko esithi "Adler-32 Hash Algorithm" esisethwe ngemuva kwe-gradient eluhlaza okwesibhakabhaka. Emaphakathini aphezulu, isihloko sivela ngezinhlamvu ezinkulu ezimhlophe ezinemigqa emincane ehlukanisayo e-orenji ohlangothini ngalunye, okudala isitayela somdwebo wobuchwepheshe ohlanzekile. Ukwakheka kugeleza kusuka kwesobunxele kuya kwesokudla, kuqondise umbukeli ngepayipi elilula lomqondo lokuthi idatha iguqulwa kanjani ibe yi-checksum.
Ngakwesobunxele kude kunephaneli eliwolintshi eliyindilinga elibhalwe ukuthi "Idatha Yokufaka." Ngaphakathi kwaleli phaneli kunamabhulokhi amathathu ayizikwele aphawulwe ngezinhlamvu u-A, u-B, no-C, ezifanekisela amabhayithi noma izinhlamvu ngazinye zedatha engenayo ngaphandle kokuzibopha kunoma yisiphi isibonelo esithile sezinombolo. Ngaphansi kwaleli phaneli, amagama athi "Amabhayithi Acutshunguliwe" abhalwe ngombala omhlophe, nomcibisholo ogobile ohamba phansi bese ubheke enkabeni yesithombe, okubonisa ukuthi amabhayithi aphathwa ngokulandelana.
Phakathi nendawo kukhona isitsha esikhulu esiluhlaza okwesibhakabhaka esimele umongo we-algorithm. Ngaphakathi kwayo kukhona amakholomu amabili ahambisanayo. Ikholomu yesobunxele ibhalwe ukuthi "Sum (A)" kanti ikholomu yesokudla ibhalwe ukuthi "Checksum (B)." Ikholomu ngayinye iqukethe ibhokisi eliluhlaza okwesibhakabhaka elikhanyayo elifundeka ngokuthi "Mod 65521," elibonisa ngokubonakalayo ukuthi womabili amanani asebenzayo ancishiswa ngezikhathi ezithile yi-modulus, kodwa ngaphandle kokubonisa izibalo eziqondile. Kusukela kubhokisi ngalinye lalawa, umcibisholo omhlophe obheke phansi ukhomba kunxande ophuzi wesitayela sezinkinobho obhalwe ukuthi "Engeza & Mod," okuphakamisa ukuthi i-algorithm ingeza ngokuphindaphindiwe idatha engenayo ku-accumulator ngayinye futhi isebenzisa umsebenzi we-modulus ku-loop.
Ngaphansi kwamakholomu amabili, imicibisholo ihlangana iye kubha ende evundlile ehlanganisa ububanzi bendawo ephakathi nendawo. Le bha iqukethe umbhalo othi "Checksum = B << 16
A," okubonisa ngendlela engaqondakali ukuthi amanani amabili aphakathi ahlanganiswe abe umphumela owodwa we-32-bit. Umdwebo ugwema noma yiziphi izibonelo zezinombolo ngale kwamalebula ajwayelekile, ugcina umbono oqondile kunokuba uqondiswe ekusetshenzisweni.
Ngakwesokudla kwesithombe kukhona iphaneli yokugcina yokukhipha. Iyibhokisi eliluhlaza okwesibhakabhaka eliyindilinga elinesihloko esithi "Adler-32 Hash" futhi, ngaphakathi kwesikwele esiluhlaza okotshani, inani lesibambi sendawo "12345678." Leli nani libonisa ngokucacile kunokuba lihloselwe ukuba yi-checksum yangempela. Umcibisholo ovela kubha yokuhlanganisa ukhomba kule phaneli yokukhipha, uqedela ukugeleza kusuka kwesobunxele kuya kwesokudla.
Sekukonke, iphalethi yemibala ibuswa yimibala eluhlaza okwesibhakabhaka yesakhiwo, enezimpawu eziphuzi neziphuzi zokugcizelela okufakwayo kanye nokusebenza. Ukuhlelwa akugcwele, kusetshenziswa imicibisholo, amabhokisi ayindilinga, kanye nokuthayipha okuhambisanayo ukwenza umqondo wezinga eliphezulu wenqubo ye-Adler-32 ube lula ukuwuqonda ngaphandle kokuthembela emininingwaneni ephansi noma engase ibe namaphutha.
Isithombe sihlobene: Isibali sekhodi sehashi Adler-32