ΥڡϤƤʥ֥åޡɲΥڡޤϤƤʥ֥åޡ Υڡlivedoor åפɲΥڡޤlivedoor å

ܼ

ȤˤŹ˴ؤڡǤϡ­ʤäꡢäҤ򤷤ƤꤹȤޤ塢ĽͽǤ

ŹΡذŹ浻ѤΤ٤ơ٤ȯ䤵Ƥޤ鿴ԸΰŹܤǤޤǰŹܤ˲٤ĩ路ĤĤޤƤޤäعβǺǤʻˤưŹ꤬ʤɤˤǤ

ذŹ浻ѤΤ٤ơ

̣򻲾ȤƤAmazonǤȯǤ

ŨΥǥ

Ũϲ餫ˡ(ʿʸ,Źʸ)(m1,c1),,(mq,cq)ꤷȤ롣ξȤˡK빶ͤ롣

Ź湶ˤϤ륢ץޤޤ֥롼ȥեåɥͥ륢å硼ȥåʬǤ롣

֥롼ȥեå

֥롼ȥեåõ

Ϲͤ븰򤹤٤꼰Ĵ٤ƤȤˡǤΥåϤ٤ƤΰŹˤѤ뤳ȤǤޤϥåˡǤֻ֤ΤǡΤ̾盧ΥåDzɤƤޤǽΤΤϰŹȤƻȤޤ

ʥСǡåˡŹʸ׹

СǡѥɥåȸƤФ֥23ͤ򽸤Ʊʹ֤2Ͱʾ夤Ψ⤤פȤ˴ŤƤ빶ˡǤ̲ȡNӥåȤνϤϡ2N/2٤νϤ򽸤ȡƱǡ¸ߤǽ⤤ȤΨȤˤƲϤʤޤ

񹶷ʥǥʥ꡼å

ˡǤ¤ʿʸȰŹʸΥڥƤơоݤʸϤȰפΤõФˡǤ

ɥͥ륢å

ϡɥˡǤ

SPASimple Power Analysis attackñϲϹ

DPADifferential Power Analysis attackϺʬϡ

SPADPAϡ׻˾Ϥ뤳ȤܤåǤ

ߥ󥰹

׻Ƥ֤ܤåǤ

å并

ưŪ˸ѲƤŹФơå˥ǡ˥ҥåȤɤǷ׻֤Ѳ뤳ȤܤåǤ

DFADifferential Fault Analysis attack

鶯Ϥʸʥ졼ˤʤɤȼͤ뤳ȤˤꡢտŪ˥顼ȯơȤ˲ɤμ꤬륢åǤ

硼ȥå

Ū˲Ǥ롣

Źʸcipertext-only attack

ŹʸΤߤȤäΤȡĤޤꡢŨΤäƤΤϰŹʸΤߤǡΰŹʸ餽бʿʸ뤤 ϸɤ褦ȤˡǤ롣

İͳˤǤȤŪξбǤ롣깶⡢ʿʸγΨŪѤ빶⤬ޤޤ롣

ϰŹΥ르ꥺˤʤäƤȤιǥǤ롣äơŵŹˤǤɸŪʹǥȤ롣

ʿʸknown-plaintext attack

ŨʿʸȰŹʸΥڥΤäƤˤ빶⡣ŨϤΥڥͳ򤹤뤳ȤϤǤʤĤޤꡢŨʿʸȰŹʸΥڥǤ(m1,c1)ġ(mq,cq)Ϳ졢鸰KɤˡǤ롣

̿Ѥˤʤäʿʸ򥴥ȢŨȤ褦ʸŪξбǤ롣ޤ㤨Сַɶס𡹡פʤɤηӤθդʿʸ˴ޤޤƤ뤳ȤŨΤäƤ⡢ΥåξȤ롣

ŹξϡŹ沽르ꥺƤΤǡʿʸʾǤʿʸ⤬¹ԤǤ롣ޤǸŵŹˤ빶ǥǤ롣ŹʸͭפʡʤȻפ˾ŨΤǡιФƤ褦˸ŵŹϺ٤Ǥ롣

ʿʸchosen-plaintext attack

Ũʿʸm1,,mqͳӡбŹʸǤȤˡKɤˡǤ롣

ιϸŹˤŹ楹ǤϾ˲ǽǤ롣äơŹˤ㤤٥ιǥǤ롣ŹϺǤ⤳ιǥʾäƤʤа̣ʤ

Źʸchosen-cipertext attack

Ũʿʸ˲äơŹʸc1,,cqͳӡбʿ ʸꤹ뤳ȤǤ롣äǸKɤˡǤ롣

ޤбʿʸˡޤ̤ΰŹʸǤʿʸʹ뤫ɤʤɤξˤäơ̾1,2Ȥͤդͳ˲Ǥ⤿ͤŨΤǡȸ롣

ʬ򤷤Źʸ楢르ꥺʸȤ鷺ˡˤ¹ԤǤ롣ϸŹ楹ˤ빶ǥκǤ⶯Ǥ롣ιФƤʰŹ줿ִ򤷤Ȥˤʤ롣

ΤʿʸΤ

嵭ǤŨɸϸ򸫤Ĥ뤳ȤǤäʤ顢ξˤơŨϸ빶⡢Ϳ줿ŹʸʥåȰŹʸȤˤбʿʸʴ뤤ʬŪˡ˹ͤ뤳Ȥ¿ȤΤŨϸΤ뤳ȤǤСʿʸ˵뤳ȤϤǤ뤫Ǥ롣ޤиȤ鷺ʿʸϤ뤳ȤǤ뤫⤷ʤĤޤꡢŨˤȤäƸʿʸΤۤϤ䤹ǽΤǤ롣 ŹϤ궯Ϥʹ򤹤ŨФơǤ򤷤Ĥޤꡢ궯⡢¨ŨˤȤäƤ䤹ŻξǤ롢ʿʸȤŨιѥȤȤ¿ΤǤ롣