Kalkuleta na lambar hash MurmurHash3A

MurmurHash3 wani aiki ne da ba na ɓoye bayanai ba wanda Austin Appleby ya tsara a shekarar 2008. Ana amfani da shi sosai don yin hashing na gabaɗaya saboda saurinsa, sauƙinsa, da kuma kyawawan halayen rarrabawa. Ayyukan MurmurHash suna da tasiri musamman ga tsarin bayanai na tushen hash kamar teburin hash, matattarar furanni, da tsarin cire bayanai.

Bambancin da aka gabatar a wannan shafin shine nau'in 3A, wanda aka inganta shi don tsarin bit 32. Yana samar da lambobin hash na bit 32 (byte 4), wanda aka wakilta a matsayin lambar hexadecimal mai lambobi 8.

Cikakken bayyanawa: Ban rubuta takamaiman aiwatar da aikin hash da aka yi amfani da shi akan wannan shafin ba. Daidaitaccen aiki ne wanda aka haɗa tare da yaren shirye-shiryen PHP. Na yi mahaɗin yanar gizo ne kawai don sanya shi a fili a nan don dacewa.

Game da Tsarin Hash na MurmurHash3A

Ni ba masanin lissafi ba ne, amma zan yi ƙoƙarin bayyana wannan aikin hash ta amfani da misalin da sauran abokan aikina waɗanda ba masana lissafi ba za su iya fahimta. Idan kana son cikakken bayani game da lissafi daidai, na kimiyya, ina da tabbacin za ka iya samun hakan a wani wuri ;-)

Yanzu, ka yi tunanin kana da babban akwati na tubalan LEGO. Duk lokacin da ka shirya su ta wata hanya ta musamman, za ka ɗauki hoto. Komai girman ko launi na tsarin, kyamarar koyaushe tana ba ka ƙaramin hoto mai tsayi. Wannan hoton yana wakiltar ƙirƙirar LEGO ɗinka, amma a cikin ƙaramin tsari.

MurmurHash3 yana yin wani abu makamancin haka da bayanai. Yana ɗaukar kowace irin bayanai (rubutu, lambobi, fayiloli) kuma yana rage su zuwa ƙaramin "zanen yatsa" ko ƙimar hash. Wannan yatsan yana taimaka wa kwamfutoci su gano, tsara, da kwatanta bayanai cikin sauri ba tare da buƙatar duba komai ba.

Wani misalin kuma zai kasance kamar yin burodin kek kuma MurmurHash3 shine girke-girken mayar da kek ɗin zuwa ƙaramin kek ɗin cupcake (hash). Wannan zai zama tsari mai matakai uku:

Mataki na 1: Yanke Guda-Guda (Yarda Bayanan)

• Da farko, MurmurHash3 yana raba bayananka zuwa guntu-guntu iri ɗaya, kamar yanke kek ɗin zuwa murabba'i iri ɗaya.

Mataki na 2: Haɗa Kamar Mahaukaci (Haɗa Yanka)

• Kowace yanki tana tafiya ta hanyar haɗa abubuwa iri-iri: Juyawa: Kamar juya fanke, yana sake tsara sassan. Juyawa: Yana ƙara sinadaran da bazuwar (aikin lissafi) don haɗa abubuwa. Juyawa: Yana matsa bayanai tare don tabbatar da cewa babu wani abu na asali da ya fito fili.

Mataki na 3: Gwajin Ɗanɗano na Ƙarshe (Ƙarshe)

• Bayan an haɗa dukkan guntun, MurmurHash3 ya juya shi sau ɗaya don tabbatar da cewa ko da ƙaramin ɓawon canji a cikin bayanan asali zai canza ɗanɗanon gaba ɗaya (hash).

Karin Karatu

Idan kuna jin daɗin wannan sakon, kuna iya kuma son waɗannan shawarwari:

• MurmurHash3F Hash Code Kalkuleta
• SHA-1 Hash Code Na'ura
• Kalkuleta na lambar hash HAVAL-160/3