Sonke sijwayele ukuthumela idatha nge-inthanethi noma amanye amanethiwekhi endawo. Ngokuvamile, idatha enjalo idluliselwa kunethiwekhi ngendlela yamabhithi. Ngokuvamile, lapho amathani edatha athunyelwa ngenethiwekhi, ingase ibe lula ekulahlekeni kwedatha ngenxa yenkinga yenethiwekhi noma ukuhlasela okunonya. I-checksum isetshenziselwa ukuqinisekisa ukuthi idatha etholiwe ayilimele futhi ayinawo amaphutha nokulahlekelwa. I-Checksum isebenza njengesigxivizo seminwe noma isihlonzi esihlukile sedatha.
Ukuze ukuqonde kangcono lokhu, cabanga ngalokhu: Ngikuthumelela ubhasikidi wama-apula nge-ejenti ethile yokulethwa. Manje, njengoba umenzeli wokulethwa engowesithathu, asikwazi ukuthembela ebuqiniso bakhe ngokuphelele. Ngakho ukuze ngiqiniseke ukuthi akakawadli ama-apula endleleni yakhe nokuthi niwathola wonke ama-apula, ngiyanibiza futhi nginitshele ukuthi ngikuthumelele ama-apula angu-20. Lapho uthola ubhasikidi, ubala inani lama-apula futhi uhlole ukuthi angu-20 yini.
Lokhu kubalwa kwama-apula yilokho okwenziwa yi-checksum kufayela lakho. Uma uthumele ifayela elikhulu kakhulu ngenethiwekhi (umuntu wesithathu) noma ulidawunilode ku-inthanethi futhi ufuna ukwenza isiqiniseko sokuthi ifayela lithunyelwe noma lamukelwe ngendlela efanele, usebenzisa i-checksum algorithm kufayela lakho elisetshenziswayo. ithumele futhi idlulise inani kumamukeli. Lapho ethola ifayela, umamukeli uzosebenzisa i-algorithm efanayo futhi afanise inani elitholiwe nalokho okuthumele. Uma amanani ehambisana, ifayela lithunyelwe ngendlela efanele futhi ayikho idatha elahlekile. Kodwa uma amanani ehlukile, umamukeli uzokwazi ngokushesha ukuthi enye idatha ilahlekile noma ifayela liphazanyiswe kunethiwekhi. Njengoba idatha ingase ibe bucayi kakhulu futhi ibalulekile kithi, kubalulekile ukuhlola noma yiliphi iphutha okungenzeka lenzeke ngenkathi idluliswa. Ngakho-ke, i-checksum ibaluleke kakhulu ukugcina ubuqiniso bedatha nobuqotho. Ngisho noshintsho oluncane kakhulu lwedatha lubangela ushintsho olukhulu kusheke. Amaphrothokholi afana ne-TCP/IP elawula imithetho yokuxhumana ye-inthanethi nawo asebenzisa isheke ukuze kuqinisekiswe ukuthi kulethwa idatha elungile njalo.
I-checksum iyi-algorithm esebenzisa umsebenzi we-cryptographic hash. Le algorithm isetshenziswa phezu kocezu lwedatha noma ifayela ngaphambi kokuyithumela nangemuva kokuyithola ngenethiwekhi. Kungenzeka ukuthi ubonile ukuthi inikezwe eceleni kwesixhumanisi sokulanda ukuze kuthi lapho ulanda ifayela, ukwazi ukubala isheke kukhompyutha yakho bese uyiqhathanisa nevelu enikeziwe. Qaphela ukuthi ubude be-checksum abuncikile kusayizi wedatha kodwa ku-algorithm esetshenzisiwe. Ama-algorithms avamile we-checksum asetshenziswayo yi-MD5 (Message Digest algorithm 5), SHA1 (Secure Hashing Algorithm 1), SHA-256 kanye ne-SHA-512. Lawa ma-algorithms akhiqiza amanani angu-128-bit, 160-bit, 256 -bit kanye nama-512-bit hash ngokulandelana. I-SHA-256 ne-SHA-512 ezakamuva kakhulu futhi zinamandla kune-SHA-1 ne-MD5, okuthi kwezinye izimo ezingavamile zikhiqize amanani afanayo okuhlola amafayela amabili ahlukene. Lokhu kwehlise ukufaneleka kwalawo ma-algorithms. Amasu amasha afakazela amaphutha futhi athembeke kakhulu. I-algorithm ye-Hashing ngokuyinhloko iguqulela idatha ekulingane nayo kanambambili bese iphatha imisebenzi ethile eyisisekelo efana nokuthi KANYE, NOMA, XOR, njll. kuyo futhi ekugcineni ikhiphe inani le-hex lezibalo.
Okuqukethwe[ fihla ]
- Iyini i-checksum? Futhi Ungawabala Kanjani Amasheke
- Indlela yoku-1: Bala amasheke usebenzisa i-PowerShell
- Indlela yesi-2: Bala i-Checksum usebenzisa i-Online Checksum Calculator
- Indlela yesi-3: Sebenzisa i-MD5 ne-SHA Checksum Utility
Iyini i-checksum? Futhi Ungawabala Kanjani Amasheke
Indlela 1: Bala ama-Checksums usebenzisa i-PowerShell
1.Sebenzisa ukusesha kwimenyu yokuqala ku-Windows 10 bese uthayipha I-PowerShell bese uchofoza ' IWindows PowerShell ' kusuka ohlwini.
2.Okunye, ungachofoza kwesokudla ekuqaleni bese ukhetha ‘ IWindows PowerShell 'kusuka kumenyu.
3.Ku-Windows PowerShell, sebenzisa umyalo olandelayo:
|_+_|4.Ukwaziswa kuzovela Inani le-SHA-256 hashi ngokuzenzakalelayo.
5.Ngamanye ama-algorithms, ungasebenzisa:
|_+_|Manje usungakwazi ukufanisa ivelu etholiwe nevelu enikeziwe.
Indlela yesi-2: Bala i-Checksum usebenzisa i-Online Checksum Calculator
Kunezibali eziningi ze-checksum eziku-inthanethi ezifana ne-‘onlinemd5.com’. Leli sayithi lingasetshenziswa ukubala amanani okuhlola e-MD5, SHA1 kanye ne-SHA-256 anoma yiliphi ifayela ngisho nanoma yimuphi umbhalo.
1. Chofoza ku-' Khetha ifayela ' bese uvula ifayela lakho olifunayo.
2.Okunye, hudula bese uphonsa ifayela lakho ebhokisini elinikeziwe.
3.Khetha eyakho i-algorithm oyifunayo futhi uthole i-checksum edingekayo.
4.Ungaphinda uqondanise le-checksum etholiwe ne-checksum enikeziwe ngokukopisha isheke elinikeziwe ebhokisini lombhalo elithi ‘Qhathanisa ne:’.
5.Uzobona umaka noma isiphambano eceleni kwebhokisi lombhalo ngokufanele.
Ukuze ubale i-hashi yeyunithi yezinhlamvu noma umbhalo ngokuqondile:
a) Skrolela phansi ekhasini ukuze ' I-MD5 & SHA1 Hash Generator Yombhalo '
b) Kopisha iyunithi yezinhlamvu ebhokisini lombhalo elinikeziwe ukuze uthole isheke elidingekayo.
Ukuze uthole amanye ama-algorithms, ungasebenzisa ' https://defuse.ca/checksums.htm '. Lesi sizindalwazi sikunikeza uhlu olubanzi lwamanani amaningi we-hashing algorithm ehlukene. Chofoza ku-'Khetha ifayela' ukuze ukhethe ifayela lakho bese uchofoza ' Bala ama-Checksums... ' ukuze uthole imiphumela.
Indlela yesi-3: Sebenzisa i-MD5 ne-SHA Checksum Utility
Okokuqala, landa i-MD5 & SHA Checksum Utility bese uyethule ngokuchofoza kabili kufayela le-exe. Vele uphequlule ifayela lakho futhi ungathola i-MD5, SHA1, SHA-256, noma i-SHA-512 hash yayo. Ungakwazi futhi ukukopisha-unamathisele i-hashi enikeziwe ebhokisini lombhalo elifanele ukuze ulifanise kalula nenani elitholiwe.
Kunconyiwe:
- Lungisa iLaptop ayixhumi ku-WiFi (Ngezithombe)
- Awukho Umsindo ku-Windows 10 I-PC [SOLIVE]
- Ulilungisa Kanjani Iphutha Lokuvuselela IWindows 0x80070643
- Lungisa Inkinga Yomshayeli Webhasi Lomhlaba Wonke (i-USB)
Ngethemba ukuthi izinyathelo ezingenhla zibe usizo ekufundeni Iyini i-Checksum? Futhi Indlela Yokubala; kodwa uma usenemibuzo mayelana nalesi sihloko zizwe ukhululekile ukubabuza esigabeni sokuphawula.
Aditya Farrad U-Aditya uchwepheshe wezobuchwepheshe ozikhuthazayo futhi ube ngumbhali wezobuchwepheshe kule minyaka engu-7 edlule. Ukhava izinsiza ze-inthanethi, iselula, iWindows, isoftware, kanye nemihlahlandlela yokuthi ungazenza kanjani.