Umahluko phakathi kwe-SHA-1, SHA-2, SHA-256 hash algorithms
Umahluko phakathi kwe-SHA-1, SHA-2, SHA-256 hash algorithms
Masiqale ngokuchaza isishwankathelo se-algorithm.
I-algorithm ye-Hash ngumsebenzi wezibalo odibanisa idatha kwisayizi emiselweyo, umz. ukuba sithathe nasiphi na isivakalisi "i-Ola inekati" kwaye siyiqhube nge-algorithm ekhethekileyo ye-CRC32 siya kufumana isishunqulelo "b165e001". Zininzi ii-algorithms kwaye zonke zineenjongo ezithile, ezinye ziphuculwe ngohlobo lwedatha, ezinye zezokhuseleko.
Kithi, eyona nto ibaluleke kakhulu zii-algorithms ze-SHA.
I-SHA-imele uHashing Algorithm ekhuselekileyo- isetyenziselwa ukhuseleko lwe-cryptographic. Eyona nto ibaluleke kakhulu kule algorithm kukungabinakuchazeka kunye nokuhluka kwe-hash. Ukungabuyiseki-idatha yoqobo iya kuhlala ikhuselekile kwaye ingaziwa. Umahluko-iziqwenga ezibini zedatha azinako ukuvelisa isitshixo esinye.
Utyikityo lwedijithali lunovakalelo olugqithisileyo - naluphi na utshintsho kuxwebhu luya kutshintsha utyikityo. Ukuba sithathe esi sivakalisi sikhankanywe ngasentla "OLA MA KOTA" kwaye sibhale ngoonobumba abakhulu, besiya kufumana isishunqulelo esahluke ngokupheleleyo "baa875a6". Esinye isifinyezo sithetha ukuba utyikityo alusasebenzi.
I-SHA-1 ne-SHA-2 ziinguqulelo ezimbini zealgorithm. Bahlukile ngokwezokwakha kunye nobude obude. I-SHA-2 yinguqulelo ephuculweyo ye-SHA-1.
I-SHA-1 ubude bayi-160 ubude
I-SHA-2 yenzeka ngobude obahlukeneyo, ikakhulu kuma-256 bits
Inani elikhulu le-hash linika ukhuseleko olukhulu. Inani lezifinyezo ezizodwa zinokuchazwa njengenani, umzekelo.e-SHA-256 zingu-2 256 indibaniselwano enokwenzeka. 2 256 eli nani likhulu lidlula inani lamasanti entlabathi.
Ukuba isatifikethi somsebenzisi sisekwe kwi-SHA-1 (kwaye siyasebenza, kuba sakhutshwa phambi kukaJulayi 1), utyikityo olwenziwe (emva koJulayi 1) oluqinisekisiweyo nesi satifikethi kufuneka siqulathe isifinyezo somxholo osayiniweyo obalwe nge-SHA-2 algorithm (hayi i-SHA-1). Ke iinkqubo kunye neenkqubo ze-IT kufuneka zijongane kungekuphela nezatifikethi ezitsha, kodwa uninzi lwazo zonke zenza utyikityo kunye nokutywina xa usebenzisa i-hash ngokungqinelana ne-SHA-2.
Iinkqubo esizifakayo sele zivunyelwe namhlanje ukuba zenze imisebenzi yokungenisa kunye nokuqinisekisa ukusayinwa kwe-elektroniki kusetyenziswa umsebenzi we-SHA-2 hash.
Kuthatha kuphela imizuzu embalwa, ukufowunela okanye ukubhala ukufumana okungakumbi malunga nesiginitsha ye-elektroniki efanelekileyo.
Apha ngezantsi kukho iiseti ezicetywayo zotyikityo lwe-elektroniki:
