Isibali sekhodi sehashi SHA-512/256

I-SHA-512/256 (Secure Hash Algorithm 512/256-bit) iwumsebenzi we-cryptographic hashi othatha okokufaka (noma umlayezo) futhi ukhiqize usayizi ogxilile, ophumayo ongu-256-bit (32-byte), ovame ukumelelwa njengenombolo ye-hexadecimal yezinhlamvu ezingu-64. Ingokomndeni we-SHA-2 wemisebenzi ye-hashi, eklanywe yi-NSA. I-SHA-512 ngempela enamanani ahlukene okuqalisa futhi umphumela uncishisiwe waba ngamabhithi angu-256, ukusizakala ukuthi i-SHA-512 isebenza ngokushesha kune-SHA-256 kumakhompyutha angu-64 bit, kodwa ukugcina izidingo zesitoreji esincane samakhodi angu-256 bit hashi.

Imiphumela ye-SHA-512, SHA-256 kanye ne-SHA-512/256 ihluke ngokuphelele kokokufaka okufanayo, ngakho-ke ayihambelani - okusho ukuthi akwenzi mqondo ukuqhathanisa ikhodi ye-SHA-256 hashi yefayela nekhodi ye-SHA-512/256 yefayela elifanayo ukuze ubone ukuthi ishintshiwe yini.

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-SHA-512/256 Hash Algorithm

Angihlakaniphile kakhulu ezibalweni futhi angizibheki njengesazi sezibalo, ngakho-ke ngizozama ukuchaza lo msebenzi we-hashi ngendlela engingayiqonda ngayo izazi zami ezingezona zezibalo. Uma ukhetha inguqulo yezibalo elungile ngokwesayensi, ngiyaqiniseka ukuthi ungathola lokho kwamanye amawebhusayithi amaningi ;-)

Noma kunjalo, ake sicabange ukuthi umsebenzi we-hashi yi-super high-tech blender eklanyelwe ukwakha i-smoothie ehlukile kunoma yiziphi izithako ozifaka kuyo. Lokhu kuthatha izinyathelo ezine, ezintathu zazo ezifanayo ne-SHA-512:

Isinyathelo 1: Faka Izithako (Okokufaka)

• Cabanga okokufaka njenganoma yini ofuna ukuyihlanganisa: ubhanana, ama-strawberry, izingcezu ze-pizza, noma incwadi yonke. Akukhathalekile ukuthi ufake ini - enkulu noma encane, elula noma eyinkimbinkimbi.

Isinyathelo sesi-2: Inqubo yokuhlanganisa (Umsebenzi we-Hash)

• Ucindezela inkinobho, bese i-blender ihamba kabi - ukusika, ukuxuba, ukuphotha ngesivinini esihlanya. Ineresiphi ekhethekile ngaphakathi ukuthi akekho ongashintsha.
• Le recipe ihlanganisa imithetho engasile efana nokuthi: "Spin kwesokunxele, shwila kwesokudla, phenduka ubheke phansi, nyakazisa, sika ngezindlela ezixakile." Konke lokhu kwenzeka ngemuva kwezigcawu.

Isinyathelo sesi-3: Uthola I-Smoothie (Okukhiphayo):

• Kungakhathaliseki ukuthi usebenzise ziphi izithako, i-blender ihlale ikunikeza inkomishi eyodwa ye-smoothie (lokho usayizi omisiwe wamabhithi angu-512 ku-SHA-512).
• I-smoothie inokunambitheka okuyingqayizivele nombala osuselwe ezithakweni ozifaka kuzo. Ngisho noma ushintsha into eyodwa nje encane - njengokwengeza uhlamvu olulodwa lukashukela - i-smoothie izonambitha ehluke ngokuphelele.

Isinyathelo sesi-4: Nciphisa

• Ngokunciphisa (ukusika) umphumela wehlisele kumabhithi angu-256, sisebenzisa iqiniso lokuthi i-SHA-512 isebenza ngokushesha kune-SHA-256 kumasistimu angu-64 bit, kodwa futhi sigcina inzuzo yezidingo zokulondoloza ezincane zamakhodi angu-256 bit hashi. Qaphela ukuthi imiphumela ayihambelani, i-SHA-512/256 ne-SHA-256 zikhiqiza amakhodi e-hashi ahluke ngokuphelele.

Mina ngokwami ​​ngivame ukunamathela ku-SHA-256, kodwa mhlawumbe lowo umkhuba wakudala okufanele ngiwususe. Uma uklama amasistimu amasha azosebenza kakhulu (noma ngokuphelele) kumakhompyutha angu-64 bit, i-SHA-512/256 ibonakala iyisinqumo esingcono.