Isibali sekhodi sehashi SHA-1

I-SHA-1 (I-Secure Hash Algorithm 1) iwumsebenzi we-cryptographic hashi oklanywe i-NSA futhi wanyatheliswa yi-NIST ngo-1995. Ikhiqiza inani le-hashi elingu-160 bit (20 byte), elivame ukumelelwa njengeyunithi yezinhlamvu ze-hexadecimal enezinhlamvu ezingu-40. I-SHA-1 ibisetshenziswa kabanzi ukuze kuvikelwe ubuqotho bedatha, amasiginesha edijithali, nezitifiketi, kodwa manje isibhekwa njengengavikelekile ngenxa yokuba sengozini yokuhlaselwa ukushayisana. Ifakwe lapha uma kwenzeka umuntu edinga ukubala ikhodi ye-hashi okufanele ihambisane nesistimu endala, kodwa akufanele isetshenziswe lapho kuklanywa amasistimu amasha.

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-1 Hash Algorithm

Angisona isazi sezibalo, ngakho-ke ngizozama ukuchaza lo msebenzi we-hashi ngendlela abanye abangezona izibalo abangayiqonda - uma ufuna inguqulo yezibalo zesayensi enembile yencazelo, ungathola lokho kwamanye amawebhusayithi amaningi ;-)

Cabanga nge-SHA-1 njengomshini wokusika amaphepha okhethekile othatha noma yimuphi umlayezo - kungakhathaliseki ukuthi igama elilodwa, umusho, noma incwadi yonke - futhi uyihlikihle ngendlela eqondile. Kodwa esikhundleni sokumane sihlakaze, sikhafula "ikhodi ehlukanisiwe" eyingqayizivele ehlala inezinhlamvu ezingama-hexadecimal angu-40 ubude.

• Isibonelo, ufake okuthi "Sawubona"
• Uthola amadijithi angama-hexadecimal angama-40 afana no-f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0

Kungakhathaliseki ukuthi uyipha ini - kufushane noma yinde - okukhiphayo kuhlala kunobude obufanayo.

"I-shredder yemilingo" isebenza ngezinyathelo ezine:

Isinyathelo 1: Lungiselela Iphepha (Padding)

• Ngaphambi kokuqothula, udinga ukulungisa iphepha lakho. Cabanga ungeza izikhala ezingenalutho ekugcineni komlayezo wakho ukuze ulingane kahle ethreyini yokushisela.
• Kufana nokuthi uma ubhaka amakhukhi, futhi uqinisekisa ukuthi inhlama igcwalisa isikhunta ngokulinganayo.

Isinyathelo sesi-2: Sika sibe Izingcezu Ezilinganayo (Ukuhlukanisa)

• I-shredder ayithandi izingcezu ezinkulu. Ngakho-ke, inquma umlayezo wakho owulungisile ube izingcezu ezincane, ezinosayizi olinganayo - njengokusika ikhekhe elikhulu libe izingcezu eziphelele.

Isinyathelo sesi-3: Iresiphi eyimfihlo (Ukuxuba nokuhlanganisa)

• Manje kufika ingxenye epholile! Ngaphakathi kwe-shredder, ucezu ngalunye lomlayezo wakho ludlula ochungechungeni lwama-mixer nama-roller:
  • Ukuxuba: Kunyakazisa umlayezo wakho ngezithako eziyimfihlo (imithetho eyakhelwe ngaphakathi nezinombolo).
  • I-Mashing: Iyashwibeka, iyaphendukisa, futhi ijikelezisa izingxenye ngendlela ekhethekile.
  • Ukusonteka: Ezinye izingxenye zisontekile noma zihlehlisiwe, njengephepha eligoqayo libe yi-origami.

Isinyathelo ngasinye senza umlayezo uhlangane kakhulu, kodwa ngendlela eqondile umshini ohlale ulandela.

Isinyathelo sesi-4: Ikhodi yokugcina (Hash)

• Ngemva kwakho konke ukuxuba nokuhlanganisa, kuphuma ikhodi ehlanzekile, eshicilele - njengesigxivizo somunwe esiyingqayizivele somlayezo wakho.
• Noma ushintsha uhlamvu olulodwa nje emlayezweni wakho wokuqala, okukhiphayo kuzohluka ngokuphelele. Yilokho okwenza kube okukhethekile.

Isizathu sokuthi i-SHA-1 ingasasetshenziswa ukuthi abanye abantu abahlakaniphe kakhulu bathole ukuthi bangakhohlisa kanjani i-shredder ekwenzeni ikhodi efanayo yemilayezo emibili ehlukene (lokhu kubizwa ngokuthi ukungqubuzana ).

Esikhundleni se-SHA-1, manje sesine-"shredders" enamandla, ehlakaniphe kakhudlwana. Ngesikhathi sokubhala, i-algorithm yami yokuya ku-hashi yezinjongo eziningi i-SHA-256 - futhi yebo, nginayo i-calculator yalokho futhi: SHA-256 Hash Code Calculator