Tsanangudzo yeSHA-1 uye Iyo Inoshandiswa Sei Kujekesa Data
SHA-1 (shoma yeKachengeteka Hash Algorithm 1 ) chimwe chezvikwereti zve cryptographic hash mabasa .
SHA-1 inowanzoshandiswa kusimbisa kuti faira yakange isina kuiswa. Izvi zvinoitwa nekugadzira checksum isati yafaira faira, uye zvakare zvakare kana yasvika kwairi kuenda.
Iyo faira inotumirwa inogona kuonekwa seyechokwadi chete kana zvose checksums zvakafanana .
Nhoroondo & amp; Kushungurudzwa kweSHA Hash Basa
SHA-1 inongova imwe yezvigadziriswa zvina mumhuri yakachengeteka yeHash Algorithm (SHA). Yakawanda yakagadzirwa neU.S. National Security Agency (NSA) uye yakabudiswa neNational Institute of Standards uye Technology (NIST).
SHA-0 ine 160-bit message digest (hash value) ukuru uye yakanga iri yekutanga yei algorithm. SHA-0 nha yehh maitiro makumi mana akareba. Yakabudiswa sezita rokuti "SHA" muna 1993 asi yakanga isiri kushandiswa muzvikumbiro zvakawanda nokuti yakakurumidza kushandurwa neSHA-1 muna 1995 nekuda kweshoko rakachengeteka.
SHA-1 ndiyo yechipiri iteration iyi cryptographic hash basa. SHA-1 inewo gwaro rinosvika 160 bits uye rakatsvaga kuwedzera kuchengeteka nekugadzirisa utera hunowanikwa muSHA-0. Zvisinei, muna 2005, SHA-1 yakawanikwawo isina kuchengeteka.
Imwechete inonzi cryptographic kushaya simba yakawanikwa muSHA-1, NIST yakaita zvinyorwa muna 2006 zvichikurudzira masangano ehurumende kuti ashandise kushandiswa kweSHA-2 mugore ra2010. SHA-2 yakasimba kupfuura SHA-1 uye kushorwa kwakaitwa pamusoro peSHA-2 hakusviki kuti zviitike nekombiyuta yemagetsi ikozvino.
Kwete chete mapurisa ehurumende, asi kunyange makambani akafanana neGoogle, Mozilla, neMicrosoft vese vakatanga zvirongwa zvekurega kugamuchira zvivigiso zveSHA-1 SSL kana kuti vatovhara mapeji emhando iyi kubva pakuteerera.
Google ine uchapupu hwekupesana kweSHA-1 iyo inoshandisa nzira iyi isina kuvimbika kuburikidza nekugadzira checksums yakasiyana-siyana, ingave iri pamusoro pepawedi, faira, kana chimwe chikamu che data. Iwe unogona kutora mafayela maviri ega ega PDF kubva kuSHAttered kuona kuti izvi zvinoshanda sei. Shandisa SHA-1 calculator kubva pasi peji rino kuti uite checksum yevari mbiri, uye uchaona kuti kukosha ndeyeyochete kunyange zvazvo vane dhiyamusi yakasiyana.
SHA-2 & amp; SHA-3
SHA-2 yakabudiswa muna 2001, makore akawanda pashure peSHA-1. SHA-2 inosanganisira matanho matanhatu ane maitiro akasiyana-siyana: SHA-224 , SHA-256 , SHA-384 , SHA-512 , SHA-512/224 , uye SHA-512/256 .
Yakagadzirwa nevasiri vesa NSA uye yakasunungurwa neNIST muna 2015, ndeyeimwe nhengo yemhuri yakachengeteka yeHash Algorithm, inonzi SHA-3 (yaimbova Keccak ).
SHA-3 haisati yafanirwa kushandura SHA-2 seyashandurwa yekare yakashandurwa kutora nzvimbo yepakutanga. Pane kudaro, SHA-3 yakagadzirwa seimwe imwe nzira inoshandiswa kune SHA-0, SHA-1, uye MD5 .
SHA-1 Inoshandiswa sei?
Imwe mienzaniso chaiyo yenyika iyo SHA-1 ingashandiswa ndeye paunopinda password yako muwebsite yekutsvaga yewebsite. Kunyange zvazvo zvichiitika kumashure pasina ruzivo rwako, ingangodaro ndiyo nzira iyo webhusaiti inoshandisa kuchengetedza kuti password yako ndeyechokwadi.
Mumuenzaniso uyu, fungidzira uri kuedza kupinda kune webhusaiti iwe unowanzoshanyira. Nguva imwe neimwe paunokumbira kuti uende pairi, unofanirwa kupinda muzita rako rekushandisa uye password.
Kana iyo webhusaiti inoshandisa SHA-1 cryptographic hash basa, zvinoreva kuti password yako inoshandiswa kuva checksum mushure mekunge maipinda mairi. Checksum iyoyo inobva yamboenzaniswa ne checksum yakachengetwa pawebsite inoenderana neshoko rako redu, kana iwe uri 't shandura password yako kubva pawakasina kana kana iwe wakangochinja maawa akapfuura. Kana iyo miviri yakafanana, iwe unobvumirwa kuwana; kana vasingakwanisi, iwe unoudzwa kuti password haisi yakarurama.
Chimwe chiitiko apo SHA-1 hash basa rinogona kushandiswa ndeyekudzivirira mafaira. Dzimwe nzvimbo dzepawebhu dzichapa SHA-1 checksum yefaira pane peji rekutsvaga kuitira kuti paunotora faira, unogona kutarisa checksum iwe pachako kuti uone kuti faira rakadhindwa yakafanana neyawaida kuitsvaga.
Iwe unogona kushamisika kuti kushandiswa kwechokwadi ndechepi rudzi rwekuongorora. Chimbofunga mamiriro ezvinhu apo iwe unoziva SHA-1 checksum yefaira kubva pawebsite yeunyanzvi asi iwe unoda kutora shanduro imwechete kubva pane webusaiti yakasiyana. Iwe unogona kubva ugovera SHA-1 checksum kuti udzidze uye uenzanise ne checksum chaiye kubva peji rekuvandudza rekugadzira.
Kana aya maviri akasiyana naizvozvo haisi kungoreva kuti zviri mukati mefaira hazvina kufanana asi kuti pane inogona kunge yakavanzwa malware mune faira, iyo data ingasvibiswa uye inokonzera kukanganisa kwesefaira yako yepakombiyuta, faira haisi chinhu chakafanana ne faira chaiye, nezvimwe.
Zvisinei, zvinogonawo kureva kuti imwe faira inomiririra chikamu chakare chepurogiramu kupfuura imwe sezvo kubva ipapo kunyange zvishoma zveshanduko zvichange zvichiita chekeeum inokosha.
Iwe unogonawo kuongorora kuti mahwendefa acho maviri akafanana kana uri kuisa service pack kana imwe purogiramu kana kuvandudza nokuti zvinetso zvinoitika kana mamwe emafaira aripo panguva yekuisa.
Ona Nzira Yokusimbisa Sei Faira Kuvimbika muWindows Ne FCIV kwekudzidzisa kwenguva pfupi pane izvi?
SHA-1 Checksum Calculators
Rudzi rwemhando yekupikisa inogona kushandiswa kugadzirisa checksum yefaira kana boka revanhu.
Semuenzaniso, SHA1 Online uye SHA1 Hash mune zvishandiso zvepaIndaneti zvisingabhadhari zvinogona kubudisa SHA-1 checksum yeboka chero ripi zvaro remashoko, zviratidzo, uye / kana nhamba.
Aya mawebsite achaita, semuenzaniso, kubudisa SHA-1 checksum ye bd17dabf6fdd24dab5ed0e2e6624d312e4ebeaba kwemashoko pAssw0rd! .
Ona Chii Chinonzi Checksum? zvimwe zvekushandisa zvisingabhadhari zvinogona kuwana checksum yemafaira chaiwo pamakombiyuta yako kwete kungoita tambo yemashoko.