kootlekhan software

encryption software ack aisaa software haye joe digital jaankaari taka anadhikrit pahunch koo rokane key liye gupt lipi kaa upayog kartaa haye. cryptography kaa upayog computer parr digital jaankaari key saath-saath internet parr anya computers koo bheji jaane vaali digital jaankaari kii suraksha key liye kiya jaataa haye.
vargeekaran.
aise kaee software utpaad hain joe encryption pradaan karate hain. software encryption samagri koo seifertext mein aspasht karane key liye ack siffer kaa upayog kartaa haye. iss prakaar key software koo vargeekrit karane kaa ack tarika upayog kiya jaane vaalaa sifer kaa prakaar haye. sifer koo dou shreniyon mein vibhajit kiya jaa sakata haih saarvajanik kunji sifer (jise asmamit sifer key roop mein bhee jaanaa jaataa haye), aur samamit kunji sifer. encryption software saarvajanik kunji yaa samamit kunji encryption parr adharit hoe sakata haye.
software encryption koo vargeekrit karane kaa ack aur tarika isake uddeshya koo vargeekrit karna haye. iss drishtikon kaa upayog karate hue, software encryption koo software mein vargeekrit kiya jaa sakata haye joe "pargaman mein detta" aur software koo encrypt kartaa haye joe "baaki detta" koo encrypt kartaa haye. pargaman mein detta aam taur parr saarvajanik kunji siphers kaa upayog kartaa haye, aur baaki detta aam taur parr samamit kunji siphers kaa upayog kartaa haye.
samamit kunji siphers koo aage dhaara siphers aur block siphers mein vibhajit kiya jaa sakata haye. stream sifer aamtaur parr ack samay mein saade paath koo thodaa yaa bite encrypt karate hain, aur aamtaur parr vaastavik samay sanchaar, jaise audio aur video jaankaari koo encrypt karane key liye upayog kiye jaate hain. kunji kaa upayog ack keystream generator kii praarambhik sthiti sthaapit karane key liye kiya jaataa haye, aur usa generator key output kaa upayog saade paath koo kootbaddh karane key liye kiya jaataa haye. block sifer algorithm saade paath koo nishchit aakar key blocks mein vibhajit karate hain aur ack samay mein ack block koo encrypt karate hain. udaaharan key liye, aes 16-bite blocks koo sansaadhit kartaa haye, jabaki isake poorvavarti aathh bites key encrypted block hain.
ack prasiddh mamla bhee haye jahan baaki samay mein detta key pargaman mein detta key liye pee. key. aaee. kaa upayog kiya jaataa haye.
pargaman mein detta.
pargaman mein detta vaha detta haye joe computer network parr bheja jaa rhaa haye. jaba detta dou antim binduon key beach hotaa haye, tou koee bhee gopaniya jaankaari asurakshit hoe sakati haye. payload (gopaniya jaankaari) koo isaki gopaniyata key saath-saath isaki akhandata aur vaidhata koo surakshit karane key liye encrypt kiya jaa sakata haye.
aksar, pargaman mein detta dou sansthaon key beach hotaa haye joe ack-dusare koo naheen jaanate hain-jaise kii ack website parr jaane key mamle mein. ack sambandh sthaapit karane aur surakshit roop seey ack encryption kunji saajha karane key liye jaankaari koo surakshit karane key liye joe adaan-pradaan kiya jaayega, ise puuraa karane key liye bhoomikaon, neetiyon aur prakriyaon kaa ack sett vikasit kiya gayaa haye; ise saarvajanik pramukh buniyaadi dhaanche, yaa pee. key. aaee. key roop mein jaanaa jaataa haye. ack baar pee. key. aaee. ney ack surakshit connection sthaapit curr liya haye, tou ack samamit kunji koo antim binduon key beach saajha kiya jaa sakata haye. niji aur saarvajanik kunji kii tulanaa mein ack samamit kunji koo prathamikta dee jaati haye kyonki ack samamit sifer ack asmamit sifer kii tulanaa mein bahut adhik kushal (cumm cpu chakron kaa upayog kartaa haye) hotaa haye. pargaman mein detta koo kootbaddh karane key liye kaee tareeke hain, jaise kii ipsec, scp, sftp, shh, open pgp aur htts.
detta aaraam mein.
detta aitt rest usa detta koo sandarbhit kartaa haye jise lagaatar bhandaran key liye saheja gayaa haye. baaki detta aamtaur parr ack samamit kunji dwara encrypt kiya jaataa haye.
bhandaran dher mein vibhinn paraton parr kootlekhan lagu kiya jaa sakata haye. udaaharan key liye, kootlekhan koo disk parat parr, disk key ack upasamuchchay parr, jise vibhajan kahaa jaataa haye, ack aayatan parr, joe disk yaa vibhajanon kaa ack sanyojan haye, ack file pranali kii parat parr, yaa upayogkarta sthaan anuprayogon key bheetar jaise databases yaa anya anuprayog joe mezban operating system parr chalate hain, configure kiya jaa sakata haye.
poorna disk kootlekhan key saath, poori disk kootbaddh haye (disk koo boot karane yaa axes karane key liye aavashyak bits koo chhodkar jaba ack unencrypted boot/preboot vibhajan kaa upayog naheen kiya jaataa haye). choonki disk koo kaee vibhajanon mein vibhajit kiya jaa sakata haye, vibhajan kootlekhan kaa upayog vyaktigat disk vibhajanon koo kootbaddh karane key liye kiya jaa sakata haye. dou yaa dou seey adhik vibhajanon key sanyojan seey banaae gaye khandon koo matra kootlekhan kaa upayog karke kootbaddh kiya jaa sakata haye. file system, joe ack yaa adhik vibhajanon seey banaa haye, koo file system-star key kootlekhan kaa upayog karke kootbaddh kiya jaa sakata haye. nirdeshikaon koo encrypted key roop mein sandarbhit kiya jaataa haye jaba nirdeshika key bheetar kii faailen encrypted hoti hain. file kootlekhan ack ekal file koo kootbaddh kartaa haye. databases encryption sangraheet kiye jaane vaale detta parr kaary kartaa haye, binaa encrypted jaankaari koo sweekaar kartaa haye aur usa jaankaari koo lagaatar bhandaran key liye kewal detta koo encrypt karane key baad hii likhate haye. upkaran-star kaa kootlekhan, kuchh hudd taka aspasht shabd jisamen kootlekhan-saksham tape drive shamil hain, kaa upayog cpu seey kootlekhan karyon koo bund karane key liye kiya jaa sakata haye.
detta kaa pargaman vishram mein.
jaba surakshit connection banaane kii kshamata key binaa, aaraam mein detta koo surakshit roop seey sanchaarit karane kii aavashyakta hoti haye, tou upayogkarta sthaan upkaran vikasit kiye gaye hain joe iss aavashyakta kaa samarthan karate hain. yeye upkaran praaptakarta dwara apani saarvajanik kunji prakaashit karane aur preshak dwara usa saarvajanik kunji koo praapt karane mein saksham honey parr nirbhar karate hain. preshak taba jaankaari koo kootbaddh karane key liye ack samamit kunji banaane mein saksham hotaa haye, aur phir jaankaari key sancharan aur samamit kunji kii surakshit roop seey raksha karane key liye praaptakarta kii saarvajanik kunji kaa upayog kartaa haye. yeh ack paksh seey dusare paksh mein jaankaari key surakshit sancharan kii anumati detaa haye. 
pradarshan.
encryption software key pradarshan koo cpu kii gati key saapeksh maapa jaataa haye. iss prakaar, prati bite chakr (kabhi-kabhi sankshipt see. pee. bee.), ack ikai joe ack microprocessor koo sansaadhit detta key prati bite kii aavashyakta hogi, maap kii samanya ikai haye. prati bite chakr gupt lipi sambandhi karyon mein vaastavik duniya key pradarshan key aanshik sanketak key roop mein kaary karate hain. anuprayog apane swayam key encryption kii peshkash curr sakate hain jise deshi encryption kahaa jaataa haye, jisamen databases anuprayog jaise kii microsoft aiss. kyu. ell., orecal aur mongodab shamil hain, aur aamtaur parr pradarshan key liye see. pee. yuu. chakron key pratyaksh upayog parr bharosa karate hain. yeh aksar adhik suraksha aur santoshjanak anupaalan kii aasaani kii maang karane vaale vyavsaayon mein encryption kii vaanchhaniyataa koo prabhaavit kartaa haye, joe sangathanon key bheetar apane bhagidaron key madhyam seey detta kii gati aur paimaane koo prabhaavit kartaa haye.

