Tanthauzo la MD5 ndi Mbiri Yake ndi Zowonongeka
MD5 (yomwe imatchedwa MD5 Message-Digest Algorithm ) ndi ntchito yolemba ntchito yomwe cholinga chake chachikulu ndicho kutsimikizira kuti fayilo sinasinthidwe.
M'malo motsimikizira kuti ma datasti awiriwa ali ofanana poyerekezera deta yofiira, MD5 imachita izi popanga checksum pazitsulo zonsezo, ndiyeno poyerekeza ndi checksums kuti atsimikizire kuti ali ofanana.
MD5 ili ndi zolakwika zina, kotero sizothandiza pazithunzithunzi zopititsa patsogolo, koma ndizovomerezeka kuti zigwiritsidwe ntchito pazithunzi zoyenera.
Kugwiritsa ntchito MD5 Checker kapena MD5 Generator
Microsoft File Checksum Integrity Verifier (FCIV) ndi imodzi yowonjezera maulendo omwe angapange MD5 checksum kuchokera pazowona komanso osati malemba. Onani Mmene Mungatsimikizire Kukhulupirika kwa Faili mu Windows ndi FCIV kuti mudziwe momwe mungagwiritsire ntchito mndandanda wa mzerewu .
Njira imodzi yosavuta yothetsera MD5 yachitsulo cha makalata, manambala, ndi zizindikiro ndi chodabwitsa chodabwitsa cha Salad MD5 Hash Generator. Zambiri zimakhalaponso, monga MD5 Hash Generator, PasswordsGenerator, ndi OnlineMD5.
Pamene machitidwe alumikizi ofananawa agwiritsidwa ntchito, zotsatira zomwezo zimapangidwa. Izi zikutanthauza kuti mungagwiritse ntchito MD5 chojambulira kuti mutengere MD5 checksum ya malemba ena ndiyeno mugwiritse ntchito chowerengera chosiyana cha MD5 kuti mupeze zotsatira zomwezo. Izi zikhoza kubwerezedwa ndi zipangizo zonse zomwe zimapanga checksum zochokera ku MD5 hash ntchito.
Mbiri & amp; Vuto la MD5
MD5 inakhazikitsidwa ndi Ronald Rivest, koma ndi imodzi mwa njira zitatu zokhazokha.
Ntchito yoyamba yomwe adaipanga inali MD2 mu 1989, yomwe inamangidwa kwa makompyuta 8-bit. Ngakhale MD2 ikugwiritsabe ntchito, siyikufunikiranso ntchito zomwe zimafunikira chiwerengero cha chitetezo, popeza chinasonyezedwa kuti chikhale chovuta kuukiridwa.
MD2 inatsatidwa ndi MD4 mu 1990. MD4 inapangidwira makina 32-bit ndipo inali yofulumira kwambiri kuposa MD2, koma inasonyezedwanso kuti ili ndi zofooka ndipo tsopano ikuwoneka kuti ilibe ntchito ndi Internet Engineering Task Force .
MD5 inatulutsidwa mu 1992 ndipo inamangidwanso makina 32-bit. MD5 sichifulumira monga MD4, koma imaonedwa kuti ndi yotetezeka kwambiri kuposa momwe MDx yapitayi idakhalira.
Ngakhale kuti MD5 ndi yotetezeka kwambiri kuposa MD2 ndi MD4, ntchito zina zowonjezera, monga SHA-1 , zakhala ngati njira ina, chifukwa MD5 yasonyezedwanso kuti ili ndi zofooka.
Carnegie Mellon University Engineering Institute Institute ili ndi izi zonena za MD5: "Okonzekera mapulogalamu, Ovomerezeka ndi Ovomerezeka, eni eni a webusaitiyi, ndipo ogwiritsa ntchito ayenera kupewa kugwiritsa ntchito njira ya MD5 muyeso iliyonse. Monga momwe kafukufuku wam'mbuyomu wawonetsera, ayenera kuonedwa ngati cryptographically broken and inappropriate kugwiritsa ntchito kwambiri. "
Mu 2008, MD6 idaperekedwa ku National Institute of Standards ndi Technology monga njira ina ya SHA-3. Mukhoza kuwerenga zambiri zokhudza izi .
Zambiri za MD5 Hash
Mafuta a MD5 ali kutalika kwa makilogalamu 128 ndipo nthawi zambiri amasonyezedwa mu mtengo wake wa haxadecimal 32 wofanana. Izi ndizoona ziribe kanthu kaya fayilo kapena malemba angakhale aakulu kapena ang'ono.
Chitsanzo chimodzi cha izi ndi mtengo wa hex 120EA8A25E5D487BF68B5F7096440019 , omwe malemba omasulira ndi "Ichi ndi mayesero.". Kuwonjezera malemba ambiri kuti muwerenge "Ichi ndi mayeso kuti asonyeze momwe kutalika kwa mawuwo kulibe kanthu." amatanthawuza ku mtengo wosiyana kwambiri koma ndi nambala yofanana ya malemba: 6c16fcac44da359e1c3d81f19181735b .
Ndipotu, ngakhale chingwe ndi zilembo za zero zili ndi mtengo wa d41d8cd98f00b204e9800998ecf8427e , ndipo kugwiritsa ntchito ngakhale nthawi imodzi kumapangitsa mtengo 5058f1af8388633f609cadb75a75dc9d .
MD5 ma checksums amamangidwa kuti asasinthidwe, kutanthauza kuti simungayang'ane pa checksum ndikudziŵa deta yoyamba yomwe mwalemba. Pomwe zikunenedwa, pali MD5 "decrypters" yambiri yomwe imalengezedwa kuti ikutha kuwonetsa mtengo wa MD5, koma zomwe zikuchitika ndikuti iwo amapanga checksum chifukwa cha miyezo yambiri ndikukuyang'anirani mu checksum yawo kuti awone ngati ali ndi masewera omwe angakuwonetseni deta yapachiyambi.
MD5Decrypt ndi MD5 Decrypter ndi zida ziwiri zaulere zomwe zingathe kuchita izi koma zimangogwiritsira ntchito mawu ndi ziganizo.
Onani Kodi Checksum Ndi Chiyani? kuti mupeze zitsanzo zambiri za MD5 checksum ndi njira zina zaulere zopangira MD5 mtengo wa mafoni ku mafayilo.