Isibali sekhodi sehashi JOAAT

Umsebenzi we-JOAAT (Jenkins One At A Time) uwumsebenzi we-hashi ongabhalwanga phansi oklanywe u-Bob Jenkins, usosayensi wekhompyutha owaziwayo emkhakheni we-hashing algorithms. Isetshenziswa kabanzi ngenxa yobulula bayo, isivinini, kanye nezakhiwo ezinhle zokusabalalisa, okuyenza iphumelele ekubhekeni kwetafula lama-hashi, amasheke, kanye nenkomba yedatha. Ikhipha ikhodi ye-hashi engu-32 bit (4 byte), ngokuvamile emelelwa njengenombolo ye-hexadecimal enezinhlamvu ezingu-8.

Ukudalulwa okuphelele: Angibhalanga ukusetshenziswa okuqondile komsebenzi we-hashi osetshenziswe kuleli khasi. Kungumsebenzi ojwayelekile ofakwe nolimi lokuhlela lwe-PHP. Ngenze isixhumi esibonakalayo sewebhu kuphela ukuze ngisenze sitholakale esidlangalaleni lapha ukuze kube lula.

Mayelana ne-JOAAT Hash Algorithm

Angisona isazi sezibalo, kodwa ngizozama ukuchaza lo msebenzi we-hash ngisebenzisa isifaniso esingasiqonda ozakwethu abangezona izibalo. Uma ukhetha incazelo yezibalo elungile ngokwesayensi, egcwele, ngiyaqiniseka ukuthi ungayithola kwenye indawo ;-)

Cabanga nge-JOAAT njengokwenza isobho elikhethekile. Unohlu lwezithako (lokhu idatha yakho yokokufaka, njengegama noma ifayela), futhi ufuna ukuzixuba ngendlela yokuthi noma ushintsha into eyodwa nje encane - njengokwengeza ingcosana kasawoti eyodwa - ukunambitheka kwesobho kushintshe ngokuphelele. Le "flavour" inani lakho le-hashi, inombolo ehlukile emele okufakayo.

Umsebenzi we-JOAAT wenza lokhu ngezinyathelo ezine:

Isinyathelo 1: Ukuqala Ngebhodwe Elingenalutho (Ukuqalisa)

Uqala ngebhodwe elingenalutho lesobho. Ku-JOAAT, le "bhodwe" iqala ngenombolo engu-0.

Isinyathelo sesi-2: Ukwengeza Izithako Kanye Ngesikhathi (Ukucubungula Ibhayithi Ngayinye)

Manje, ungeza izithako zakho ngamunye ngamunye. Cabanga ukuthi lonke uhlamvu noma inombolo kudatha yakho kufana nokwengeza isinongo esihlukile ebhodweni.

• Faka izinongo (engeza inani lencwadi embizeni yakho).
• Hlanganisa ngamandla (yixube ngokuphinda kabili ukunambitheka ngokunyakaza okukhethekile okunyakazisayo - lokhu kufana "nokushintsha" kwezibalo.
• Engeza i-twist emangazayo (phonsa ingcosana yokungahleliwe - lokhu ukusebenza kwe-XOR, okusiza ukuxova inhlanganisela).

Isinyathelo sesi-3: Izinongo Zokugcina Eziyimfihlo (Ukuxuba Kokugcina)

Ngemva kokwengeza zonke izithako zakho, wenza okunye okuyimfihlo okunyakazisayo kanye nokunyakazisa izinongo ukuze uqiniseke ukuthi ukunambitheka akubikezeleki. Yilapho i-JOAAT yenza khona izinyathelo ezimbalwa zokugcina zokuhlanganisa nokuphenya ukuze kuqinisekiswe ukuthi umphumela uhlukile.

Isinyathelo sesi-4: Ukuhlolwa kokunambitha (Okukhiphayo)

Ekugcineni, unambitha isobho - noma esimweni sika-JOAAT, uthola inombolo (inani le-hashi) emele ukunambitheka okuyingqayizivele kwesobho lakho. Ngisho noshintsho oluncane kakhulu ezithakweni (njengokushintsha uhlamvu olulodwa kokokufaka kwakho) luzokunikeza ukunambitheka okuhluke ngokuphelele (inombolo ehluke ngokuphelele).