Kalkuleta na lambar hash XXH-64

XXH, wanda kuma aka sani da XXHash, wani tsari ne mai sauri, wanda ba na ɓoye bayanai ba wanda aka tsara don babban aiki da inganci, musamman a cikin yanayi inda saurin yake da mahimmanci, kamar a cikin matse bayanai, checksums, da kuma lissafin bayanai. Bambancin da aka gabatar a wannan shafin yana samar da lambar hash mai bit 64 (byte 8), wanda galibi ana iya gani a matsayin lambar hexadecimal mai lambobi 16.

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 XXH-64

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 ;-)

Ka yi ƙoƙarin tunanin XXHash a matsayin babban injin blender. Kana son yin smoothie, don haka sai ka ƙara wasu sinadarai daban-daban. Abu na musamman game da wannan injin blender shine yana fitar da smoothie mai girman iri ɗaya komai yawan sinadaran da ka saka, amma idan ka yi ƙananan canje-canje ga sinadaran, za ka sami smoothie mai ɗanɗano daban-daban.

Mataki na 1: Haɗa Bayanan

Ka yi tunanin bayananka a matsayin tarin 'ya'yan itatuwa daban-daban: apples, ayaba, strawberries.

• Za ka jefa su a cikin injin niƙa.
• Kana haɗa su da babban gudu.
• Komai girman 'ya'yan itacen, za ku ƙare da ƙaramin smoothie mai gauraye sosai.

Mataki na 2: Miyar Sirri - Tura da Lambobin "Sihiri

Domin tabbatar da cewa ba a iya hasashen abin da za a yi amfani da shi wajen yin smoothie ba, XXHash ya ƙara wani sinadari na sirri: manyan lambobi "sihiri" da ake kira primes. Me yasa ake yin primes?

• Suna taimakawa wajen haɗa bayanai daidai gwargwado.
• Suna sa ya yi wuya a sake fasalin ainihin sinadaran (bayanai) daga smoothie (hash).

Mataki na 3: Ƙara Sauri: Yankewa a Jumla

XXHash yana da sauri sosai domin maimakon yanka 'ya'yan itace ɗaya a lokaci guda, yana:

• Yana yanka manyan 'ya'yan itatuwa a lokaci guda.
• Wannan kamar amfani da babban injin sarrafa abinci ne maimakon ƙaramin wuka.
• Wannan yana bawa XXHash damar sarrafa gigabytes na bayanai a kowace daƙiƙa - cikakke ne ga manyan fayiloli!

Mataki na 4: Taɓawa ta Ƙarshe: Tasirin Ambaliyar Ruwa

Ga sihirin:

• Ko da ka canza ƙaramin abu ɗaya kawai (kamar waƙafi a cikin jimla), dandanon simintin ƙarshe ya bambanta sosai.
• Ana kiran wannan tasirin zaftarewar ƙasa: Ƙananan canje-canje = manyan bambance-bambance a cikin hash. Kamar ƙara digon launin abinci ne a cikin ruwa, kuma ba zato ba tsammani gilashin gaba ɗaya ya canza launi.

Karin Karatu

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

• XXH-32 Kalkuleta na Lambar Hash
• Kalkuleta na lambar hash SHA3-256
• Kalkuleta na Lambar Hash SHA3-512