
sainkripshan

cryptography, digital signecharinteyum encryptionteyum pravartthanangal oresamayam nirvahikkunna oru pothu-qee aadimamaanu sainkripshan.
rahasyathmakatha, samagratha, nirasikkaathirikkal enniva urappakkaan kazhiyunna rund adisthaana cryptographic upakaranangalaan encryption digital signechar. 1997 vare avaa vividha cryptographic samvidaanangalude pradhanappettathum ennaal vyathirikthavumaya nirmmaana blokkukalaayi kanakkaakkappettirunnu. pothu qee skeemukalil, oru sandeshathil digitalaayi oppidukayum thudarnnu rund prasnangal undaakunna oru encryption (signature-thenn-encryption) nadathukayum cheyyuka ennathaanu oru parambaraagatha reethi kuranja kaaryakshamathayum atharam samgrahathinte uyarnna chelavum, eathenkilum ekapaksheeyamaaya schemine suraksha urappu nalkaan kazhiyilla. digital signecharinteyum encryptionteyum pravartthanangal orotta logical ghattathil nirvahikkendathum parambaraagatha signature-pinneedu-encryption skeemukalumaayi thaarathamyappeduthumbol computational chelavukalum ashayavinimaya ovarhedukalum phalapradamaayi kuraykkaan kazhiyunnathumaaya thaarathamyena puthiya cryptographic saankethikathayaanu sainkripshan.
sainkripshan digital signecharukaludeyum encryption skeemukaludeyum savisheshathakal prathyekam oppidunnathinum encrypt cheiyunnathinum pakaram kooduthal kaaryakshamamaya reethiyil nalkunnu. ithinartham, oru prathyeka suraksha maathrkaykku keezhil, athinte kaaryakshamathayude chila vashangalenkilum (udaaharanathinu kanakkukoottal samayam) digital signature, encryption skeemukalude eathenkilum sankarayinathekkaal mikachathaanu. chilappol lalithamaaya encryptionu pakaram hibrid encryption upayogikkaam, koodaathe niravadhi encryptionukalkkaayi oru session-qee veendum upayogikkukayum oru sainkripshan scheminekkaal mikacha mothatthilulla karyakshamatha kaivarikkukayum cheiyunnu, ennaal session-qee punarupayogam thaarathamyena durbalamaaya sii. pii. eiii modalinu keezhil polum systethinu suraksha nashtappedaan kaaranamaakunnu. oru hibrid encryption schemile oro sandeshathinum oru kramarahithamaya session qee upayogikkunnathinte kaaranam ithaanu, pakshe oru nischitha thalatthilulla surakshaykkaayi (athaayath.iii.oru nischitha maathrkayil, sii. pii. eiii. ennu parayuka), oru sainkripshan skeem eathoru lalithamaaya signature-hibrid encryption kombineshanekkaalum kooduthal kaaryakshamamayirikkanam.
charithram.
aadyathe sainkripshan skeem 1997 ll yuliang sheng avatharippichu. parambaraagatha deerghavrithaakrithiyilulla signature-thudarnnu-encryption skeemukalumaayi thaarathamyappeduthumbol computational chelavinte 58 sathamaanavum ashayavinimaya chelavinte 40 sathamaanavum laabhikkunna oru deerghavrithaakrithiyilulla sainkripshan skeem sheng nirddeshichu. varshangaludaneelam nirddeshikkappetta mattu niravadhi sainkripshan skeemukalum undu, avayil oronninum athintethaaya prashnangalum parimithikalumundu, athesamayam vividha thalatthilulla surakshyum computational chelavukalum vaagdaanam cheiyunnu.
padhathi.
oru sainkripshan schemil saadhaaranayaayi moonnu algorithangal adangiyirikkunnu qee janareshan (jenne), sainkripshan (essie), ansainkripshan (usc). jenne eathoru upayokthaavinum oru jodi keekal srishtikkunnu, essie saadhaaranayaayi oru probabilistik algoritam aanu, usc mikkavarum nirnnaayakamaan. eathoru sainkripshan schemine inipparayunna gunangal undaayirikkanam
aaplikkeshanukal.
sainkripshanil inipparayunnava ulppede niravadhi aaplikkeshanukal undennu kaanapedunnu