a comparative study of fully homomorphic encryption schemes for cloud computing

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  • 8/14/2019 A Comparative Study of Fully Homomorphic Encryption Schemes for Cloud Computing

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    Kitjribtkaibc Lauribc ae Jfjrokio ]jdhiacaoy bim Bmvbidjm Jiokijjrkio

    _j`sktj< www.kljtbj.daf (KTTI 00:>-0=:;, KTA ;>>2>8 Djrtkekjm Lauribc, Uacufj 4, Tpjdkbc Kssuj =, Adta`jr 0>24)

    Kitjribtkaibc Daiejrjidj ai Famjri ]rjims ki Tdkjidj, Jiokijjrkio bim ]jdhiacaoy 0>24 (KDF]TJ] 0>24), Mu`bk, ZBJ . ^boj :>

    B Dafpbrbtkvj Ttumy ae Euccy Hafafarphkd JidryptkaiTdhjfjs ear Dcaum DafputkioBfib Bhfjm Bck2

    2Gjibib Tuobr Dafpbiy, Mu`bk, ZBJ

    2bfib.bck?:Nofbkc.daf

    B`strbdt]hj sjdurkty bim prkvbdy kssujs bssadkbtjm wkth

    dcaum dafputkio hbvj `jdafj thj fbki a`stbdcj ear

    `uskijssjs ta favj tawbrms dcaum dafputkio. Fbiy

    tjdhiacaokjs hbvj `jji usjm ta fktkobtj thjsj kssuj kidcumkio

    vbrkaus bddjss daitrac fjthams bim dryptaorbphy tjdhikqujs.

    ]hj patjitkbc thbt euccy hafafarphkd jidryptkai hbs ear

    dcaum dafputkio ks kts b`kckty ta pjrearf dafputbtkais aijidryptjm mbtb wkthaut prkar mjdryptkai. Tkidj Ojitrys

    kfpcjfjitbtkai ae thj ekrst euccy hafafarphkd sdhjfj ki 0>>;

    fbiy kitjrjstkio vbrkbits bim sdhjfjs hbvj `jji prapasjm

    bim mjvjcapjm ta kfpravj thj pjrearfbidj, rjmudj thj

    dafpcjxkty bim thj dast ae thj sdhjfj. ]wa kitjrjstkio

    sdhjfjs brj rjvkjwjm bim mksdussjm ki thks pbpjr. ]hj ekrst

    sdhjfj mksdussjm ki thks pbpjr ks Euccy Hafafarphkd

    Jidryptkai avjr Kitjojrs, `y Fbrtji Ubi Mklg jt bc. ]hj

    sjdaim sdhjfj ks Euccy Hafafarphkd Jidryptkai wkthaut

    @aatstrbppkio `y @rbgjrsgk jt bc. ]hj sdhjfj bibcysks ks

    fbkicy eadusjm ai thj sjdurkty, pjrearfbidj bim dafpcjxkty

    ebdtars ae thj fjitkaijm sdhjfjs.

    Gjywarms@aatstrbppkio, Dcaum Tjdurkty, Dryptaorbphy,

    Euccy Hafafarphkd Jidryptkai, EHJ Tdhjfj.

    K. KI]PAMZD]KAI]hks ]hj ibturbc jvbcubtkai ae thj Kitjrijt hbs dhbiojm

    thj dafputkio daidjpts eraf pbrbccjc dafputkio ta

    mkstrk`utjm dafputkio ta orkm dafputkio bim rjdjitcy ta

    dcaum dafputkio. ]hj Ibtkaibc Kistktutj ae Ttbimbrms bim

    ]jdhiacaoy (IKT]) hbs mjekijm thj dcaum dafputkio bs-0=:;, KTA ;>>2>8 Djrtkekjm Lauribc, Uacufj 4, Tpjdkbc Kssuj =, Adta`jr 0>24)

    Kitjribtkaibc Daiejrjidj ai Famjri ]rjims ki Tdkjidj, Jiokijjrkio bim ]jdhiacaoy 0>24 (KDF]TJ] 0>24), Mu`bk, ZBJ . ^boj :2

    Ki b dcasjr stjp tawbrms euccy hafafarphkd jidryptkai

    @aijh, Oah bim Iksskf mjvjcapjm bi jidryptkai sdhjfjthbt wbs b`cj ta pjrearf fbiy bmmktkais bim aij skiocj

    fuctkpckdbtkai ai dkphjrtjxts W5V.

    Ki Luij 0>>; Drbko Ojitry eraf K@F kfpcjfjitjm thj

    ekrst euccy hafafarphkd jidryptkai sdhjfj thbt wbs b`cj ta

    pjrearf fbiy bmmktkais bim fuctkpckdbtkais uskio kmjbc

    cbttkdjs bim `aatstrbppkio tjdhikquj. ]hj sdhjfj hbs

    pravjm thj passk`kckty ae kfpcjfjitkio euccy hafafarphkd

    jidryptkai bim cbkm b sackm orauim ear fast rjdjit euccy

    hafafarphkd jidryptkai sdhjfjs kidcumkio EuccyHafafarphkd Jidryptkai avjr Kitjojrs, `y Fbrtji UbiMklg jt bc. bim Euccy Hafafarphkd Jidryptkai wkthaut@aatstrbppkio `y @rbgjrsgk jt bc. whksh brj mksdussjm bim

    rjvkjwjm ki thks pbpjr. ]hj ijxt sjdtkai jxpcbkis Ojitryssdhjfj ki farj mjpth.

    KKK. OJI]P[T EZCC[ HAFAFAP^HKD JIDP[^]KAITDHJFJ

    Ojitrys sdhjfj W?V wbs `bsjm ai safjwhbthafafarphkd jidryptkai sdhjfj, b safjwhbt

    hafafarphkd sdhjfj dbi `j mjsdrk`jm bs b sdhjfj thbt dbi

    hbimcj b ckfktjm iuf`jr ae bmmktkais bim fuctkpckdbtkais

    `jearj thj mjdryptkai ebkcs. Ojitry usjm kmjbc cbttkdjs ta

    pravkmj bi bmmktkvj bim fuctkpckdbtkvj hafafarphksf. ]hj

    safjwhbt hafafarphkd sdhjfj ks thji trbisejrrjm kita

    euccy hafafarphkd jidryptkai sdhjfj uskio `aatstrbppkio

    tjdhikquj. ]hj `aatstrbppkio ks rjprjsjitjm bs b @aacjbidkrdukt thbt rjerjshjs thj dkphjrtjxt ta prjvjit thj kihjrjit

    iaksj ebdtar eraf orawkio taa cbroj bim hjidj fbgj kt

    mkeekduct ta ojt thj darrjdt mjdryptkai. Betjr thj iaksj ks

    rjmudjm thj iuf`jr ae bmmktkais bim fuctkpckdbtkais

    apjrbtkais hbs ia ckfktbtkai7 thus fbgkio thj sdhjfj euccy

    hafafarphkd. ]hj hafafarphkd jidryptkai sdhjfjs brj

    ojijrbccy mjsdrk`jm uskio thj eaccawkio euidtkais