SHA-512/256 Kalkuleta na Lambar Hash

SHA-512/256 (Tsarin Tsarin Hash Mai Tsaro 512/256-bit) aiki ne na hash mai ɓoyewa wanda ke ɗaukar shigarwa (ko saƙo) kuma yana samar da fitarwa mai girman 256-bit (32-byte), wanda aka fi wakilta a matsayin lambar hexadecimal mai haruffa 64. Yana cikin dangin SHA-2 na ayyukan hash, wanda NSA ta tsara. Hakika SHA-512 ne tare da ƙimar farawa daban-daban kuma an rage sakamakon zuwa bits 256, don cin gajiyar gaskiyar cewa SHA-512 yana aiki da sauri fiye da SHA-256 akan kwamfutocin bit 64, amma don kiyaye ƙananan buƙatun ajiya na lambobin bit 256 hash.

Fitowar SHA-512, SHA-256 da SHA-512/256 sun bambanta gaba ɗaya ga shigarwar iri ɗaya, don haka ba su dace ba - watau ba shi da ma'ana a kwatanta lambar hash SHA-256 na fayil da lambar hash SHA-512/256 na fayil ɗaya don ganin ko an canza shi.

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 SHA-512/256

Ban ƙware sosai a fannin lissafi ba kuma ban taɓa ɗaukar kaina a matsayin masanin lissafi ba, don haka zan yi ƙoƙarin bayyana wannan aikin hash ta hanyar da sauran abokan aikina waɗanda ba masu lissafi ba za su iya fahimta. Idan kana son nau'in lissafi mai kyau a kimiyya, ina da tabbacin za ka iya samun hakan a wasu gidajen yanar gizo da yawa ;-)

Koma dai mene ne, bari mu yi tunanin cewa aikin hash wani injin hadawa ne mai fasaha sosai wanda aka tsara don ƙirƙirar wani nau'in smoothie na musamman daga duk wani sinadari da kuka saka a ciki. Wannan yana ɗaukar matakai huɗu, uku daga cikinsu iri ɗaya ne da SHA-512:

Mataki na 1: Sanya Sinadaran (Shigarwa)

• Ka yi tunanin abin da za ka saka a matsayin duk wani abu da kake son haɗawa: ayaba, strawberries, yanka pizza, ko ma littafi gaba ɗaya. Ba kome abin da ka saka ba - babba ko ƙarami, mai sauƙi ko mai rikitarwa.

Mataki na 2: Tsarin Haɗawa (Aikin Hash)

• Kana danna maɓallin, sai injin blender ya yi tauri - yana yankawa, yana haɗawa, yana juyawa da sauri. Yana da girke-girke na musamman a ciki wanda babu wanda zai iya canzawa.
• Wannan girke-girke ya haɗa da ƙa'idodi masu ban mamaki kamar: "Juya hagu, juya dama, juya juye ƙasa, girgiza, sara ta hanyoyi masu ban mamaki." Duk wannan yana faruwa a bayan fage.

Mataki na 3: Kuna Samun Smoothie (Sakamako):

• Ko da kuwa irin sinadaran da ka yi amfani da su, injin blender ɗin koyaushe yana ba ka kofi ɗaya na smoothie (wannan shine matsakaicin girman bit 512 a SHA-512).
• Smoothie ɗin yana da ɗanɗano da launi na musamman dangane da sinadaran da kuka saka. Ko da kun canza ƙaramin abu ɗaya kawai - kamar ƙara ƙwayar sukari ɗaya - smoothie ɗin zai bambanta sosai.

Mataki na 4: Rage girman

• Ta hanyar rage (yanke) sakamakon zuwa ragowa 256, muna amfani da gaskiyar cewa SHA-512 yana aiki da sauri fiye da SHA-256 akan tsarin ragowa 64, amma kuma muna kiyaye fa'idodin ƙananan buƙatun ajiya don lambobin ragowa 256. Lura cewa sakamakon ba su dace ba, SHA-512/256 da SHA-256 suna samar da lambobin ragowa daban-daban.

Ni da kaina ina amfani da SHA-256, amma wataƙila wannan tsohuwar dabi'a ce da nake buƙatar kawar da ita. Lokacin da nake tsara sabbin tsarin da za su yi aiki galibi (ko gaba ɗaya) akan kwamfutocin bit 64, SHA-512/256 ya zama zaɓi mafi kyau.

Karin Karatu

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

• Kalkuleta na lambar hash RIPEMD-320
• Kalkuleta na lambar hash SHA-512
• Kalkuleta na lambar hash HAVAL-128/3