Isibali sekhodi sehashi SHA-1

I-SHA-1 (i-Secure Hash Algorithm 1) iwumsebenzi we-hash we-cryptographic owaklanywa yi-NSA futhi wanyatheliswa yi-NIST ngo-1995. Ikhiqiza inani le-hash elingu-160 bit (20 byte), elivame ukumelwa njengentambo ye-hexadecimal enezinhlamvu ezingu-40. I-SHA-1 yayisetshenziswa kabanzi ekuqinisekiseni ubuqotho bedatha, amasignesha edijithali, kanye nezitifiketi, kodwa manje ibhekwa njengengavikelekile ngenxa yobuthakathaka bokuhlaselwa kokushayisana. Ifakiwe lapha uma kwenzeka umuntu edinga ukubala ikhodi ye-hash okumele ihambisane nohlelo oludala, kodwa akufanele isetshenziswe lapho kuklanywa izinhlelo ezintsha.

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

Angisiye isazi sezibalo, ngakho-ke ngizozama ukuchaza lo msebenzi we-hash ngendlela abanye abangebona ochwepheshe bezibalo abangayiqonda - uma ufuna inguqulo yesayensi yezibalo eqondile yencazelo, ungakuthola lokho kwamanye amawebhusayithi amaningi ;-)

Cabanga nge-SHA-1 njengomshini okhethekile wokusika amaphepha othatha noma yimuphi umlayezo - kungaba igama elilodwa, umusho, noma incwadi yonke - bese uwusika ngendlela ethile. Kodwa esikhundleni sokusika nje, ngokuyisimangaliso ukhipha "ikhodi yokusika" ehlukile ehlala inezinhlamvu ezingama-hexadecimal ezingama-40 ubude.

• Isibonelo, ubhala ukuthi "Sawubona
• Uthola izinombolo ezingama-40 ze-hexadecimal njenge-f7ff9e8b7bb2e09b70935a5d785e0cc5d9d0abf0

Kungakhathaliseki ukuthi uyondla ngani - mfushane noma mide - umphumela uhlala ufana.

I-shredder yemilingo" isebenza ngezinyathelo ezine:

Isinyathelo 1: Lungisa Iphepha (Ukugcwalisa)

• Ngaphambi kokusikwa, udinga ukulungisa iphepha lakho. Cabanga ufaka izikhala ezingenalutho ekugcineni komyalezo wakho ukuze ulingane kahle nethreyi yomshini wokusikwa.
• Kufana nalapho ubhaka amakhukhi, futhi uqinisekisa ukuthi inhlama igcwalisa isikhunta ngokulinganayo.

Isinyathelo sesi-2: Sika Ube Yizicucu Ezilinganayo (Ukuhlukanisa)

• I-shredder ayithandi izingcezu ezinkulu. Ngakho-ke, inquma umlayezo wakho owulungiselele ube yizingcezu ezincane, ezinobukhulu obulinganayo - njengokusika ikhekhe elikhulu libe yizingcezu eziphelele.

Isinyathelo 3: Iresiphi Eyimfihlo (Ukuxuba Nokuxubha)

• Manje sekuza ingxenye epholile! Ngaphakathi kwe-shredder, ingxenye ngayinye yomlayezo wakho idlula ochungechungeni lwabaxubi nama-roller: Ukuxuba: Kuvuselela umyalezo wakho ngezithako ezithile eziyimfihlo (imithetho nezinombolo ezakhelwe ngaphakathi). Ukuxubha: Kucindezela, kuphendule, futhi kujikelezise izingxenye ngendlela ekhethekile. Ukujikijela: Ezinye izingxenye zijikijelwa noma zijikijelwe, njengephepha eligoqwayo libe yi-origami.

Isinyathelo ngasinye senza umlayezo udideke kakhulu, kodwa ngendlela ecacile kakhulu njengoba umshini uhlala ulandela.

Isinyathelo 4: Ikhodi Yokugcina (i-Hash)

• Ngemva kwakho konke ukuxuba nokuhlanganisa, kuphuma ikhodi ecocekile, ehlungiwe - njengophawu lweminwe oluhlukile lomyalezo wakho.
• Ngisho noma ushintsha uhlamvu olulodwa nje emyalezweni wakho wokuqala, umphumela uzohluka ngokuphelele. Yilokho okwenza kube okukhethekile.

Isizathu sokuthi i-SHA-1 ingasasetshenziswa ukuthi abanye abantu abahlakaniphe kakhulu bathole indlela yokukhohlisa i-shredder ukuthi yenze ikhodi efanayo yemiyalezo emibili ehlukene (lokhu kubizwa ngokuthi ukushayisana).

Esikhundleni se-SHA-1, manje sesinama-"shredders" aqinile futhi ahlakaniphile. Ngesikhathi sokubhala, i-algorithm yami ye-hash yokuya ku-default ngezinjongo eziningi yi-SHA-256 - futhi yebo, nginayo ne-calculator yalokho futhi: Isixhumanisi

Ukufunda Okuqhubekayo

Uma ukujabulele lokhu okuthunyelwe, ungaphinda uthande lezi ziphakamiso:

• Isibali sekhodi sehashi XXH-128
• Isibali sekhodi sehashi MurmurHash3A
• Isibali sekhodi sehashi SHA-512