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なめらかなセキュリティを目指して/Toward The Coherently Fittable Security

monochromegane
September 19, 2019

なめらかなセキュリティを目指して/Toward The Coherently Fittable Security

2019.09.19 第47回 情報処理学会 インターネットと運用技術研究会
https://www.ipsj.or.jp/kenkyukai/event/iot47spt35.html

monochromegane

September 19, 2019
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  1. Toward The Coherently Fittable Security
    ࡾ୐ ༔հ(GMOϖύϘגࣜձࣾ ϖύϘݚڀॴ), Ѩ෦ ത(ίίϯגࣜձࣾ ٕज़ݚڀࣨ), ܀ྛ ݈ଠ࿠(ϖύϘݚڀॴ)
    2019.09.19 ୈ47ճ ৘ใॲཧֶձ Πϯλʔωοτͱӡ༻ٕज़ݚڀձ
    ͳΊΒ͔ͳηΩϡϦςΟΛ໨ࢦͯ͠

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  2. 1. എܠ
    2. ͳΊΒ͔ͳηΩϡϦςΟ
    3. ͳΊΒ͔ͳηΩϡϦςΟͷ࣮ݱʹ޲͚ͨ෦෼ݚڀ
    4. ߟ࡯ͱ·ͱΊ
    2
    ໨࣍

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  3. ηΩϡϦςΟରࡦͷӡ༻ͱ՝୊

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  4. • ར༻ऀʹͱͬͯɼηΩϡϦςΟࢪࡦಋೖʹΑΔ໘౗͕૿͑རศੑ͕ଛͳΘΕΔ
    • ଟཁૉೝূͷಋೖ΍ΞΫηε੍ݶʢ௚઀తͳ੍໿ʣ
    • IDS/IPSʹΑΔޡݕग़΁ͷରԠʢؒ઀తͳӨڹʣ
    5
    ηΩϡϦςΟରࡦͷӡ༻ͱ՝୊ᶃ: རศੑͷ௿Լ

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  5. • ৽ͨͳڴҖʹରͯ͠ɼ৽͍͠ࢪࡦΛಋೖ͢ΔɼϧʔϧΛݟ௚͠ݫ͘͢͠ΔͳͲɼ
    ࡍݶͳ͘෺ྔΛཁٻ͢Δ
    • Ұ౓ڧԽͨ͠ηΩϡϦςΟରࡦ͸ɼηΩϡϦςΟ্ͷڴҖ͕ऑ·ͬͨͱͯ͠΋
    ܧଓ͞Εෆཁͳίετͷ૿Ճʹܨ͕Δ܏޲ʹ͋Δɽ
    6
    ηΩϡϦςΟରࡦͷӡ༻ͱ՝୊ᶄ: ίετͷ૿Ճ

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  6. • རศੑɾίετͱηΩϡϦςΟ͸τϨʔυΦϑ
    • ঢ়گ΍ݸʑਓʹΑͬͯඞཁͳηΩϡϦςΟରࡦ͸ҟͳΔ
    • ৴པͰ͖Δؔ܎ऀʹର͢ΔηΩϡϦςΟରࡦͷ෦෼తͳ؇࿨
    • ݸผ͔ͭৄࡉͳݖݶ؅ཧ͸ӡ༻ෛՙ͕ߴ͍
    • WebαʔϏεͷΑ͏ͳෆಛఆଟ਺ͷར༻ऀΛલఏͱ͢Δ৘ใγεςϜͰ
    ͸Ұ཯ͷݖݶ؅ཧ΁
    7
    ηΩϡϦςΟରࡦͷӡ༻ͱ՝୊: ᶃᶄ΁ͷΞϓϩʔν
    ॊೈͳηΩϡϦςΟରࡦΛӡ༻ෛՙΛ૿େ͢Δ͜ͱͳ͘ߦ͍͍ͨ

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  7. • ৘ใγεςϜͷ։ൃӡ༻ऀʹͱͬͯ͸ɼ؅ཧ͢΂͖ϧʔϧ΍؂ࢹ͢΂͖ϩάɼ
    ηΩϡϦςΟΠϯγσϯτ΁ͷରԠͳͲηΩϡϦςΟΛڧԽ͢Δҝʹ΍Δ΂͖
    ͜ͱ͕૿Ճɽ
    • ֤ηΩϡϦςΟରࡦͷ࿈ܞ
    • ֤ηΩϡϦςΟରࡦΛԣஅͨ͠ϩάͷ෼ੳ
    • ֤ηΩϡϦςΟରࡦͷ࠷৽Խ
    8
    ηΩϡϦςΟରࡦͷӡ༻ͱ՝୊ᶅ: ӡ༻ෛՙͷ૿େ

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  8. • ࿈ܞ΍ԣஅͷ՝୊͸౷߹؅ཧʹΑΔলྗԽ
    • ෳ਺ͷηΩϡϦςΟରࡦΛ౷߹͢ΔUTM
    • ֤छϩάͷҰݩ؅ཧɾ෼ੳΛߦ͏SIEM
    • ࠷৽Խͷ՝୊͸ύον΍γάωνϟͷࣗಈߋ৽ʹΑ࣮ͬͯݱ
    • ҰํͰɼFirewallͷϙϦγʔ΍WAFͷύλʔϯͱ͍ͬͨಋೖઌͷ؀ڥ΍
    WebαʔϏεͷಛੑʹґଘ͢Δ΋ͷ͸มߋʹ௥ै͢Δ࢓૊Έ͕ඞཁ
    9
    ηΩϡϦςΟରࡦͷӡ༻ͱ՝୊: ᶅ΁ͷΞϓϩʔν
    ޮ཰తͳηΩϡϦςΟରࡦͷͨΊҡ࣋؅ཧΛࣗಈԽ͍ͨ͠

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  9. ݚڀͷ໨త

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  10. • ৘ใηΩϡϦςΟʹؔ͢ΔΠϯγσϯτͷൃੜස౓΍ࣾձతӨڹ͸೥ʑ֦େ
    • ଟ༷Խ͢ΔαΠόʔ߈ܸʹରԠ͢ΔͨΊɼଟ૚๷ޚ͕ओྲྀͱͳΔ
    • ڧݻͳηΩϡϦςΟͱͷτϨʔυΦϑͰ͋Δརศੑͷ௿Լɾίετ΍ӡ༻ෛՙ
    ͷ૿େΛղফ͠ɼܧଓՄೳͳηΩϡϦςΟରࡦͷ࢓૊ΈΛ࡞Δ͜ͱ͕৘ใγε
    ςϜͷ։ൃӡ༻ऀʹͱͬͯॏཁ
    11
    ݚڀͷ໨త

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  11. ͜ΕΒΛ࣮ݱ͢ΔͨΊͷ࢓૊ΈΛʮͳΊΒ͔ͳηΩϡϦςΟʯͱͯ͠ఏҊ
    12
    ఏҊͷࠎࢠ
    ᶃ ඞཁͳ࣌ʹඞཁ࠷খݶͷηΩϡϦςΟΛఏڙ
    → ঢ়گ΍ݸʑਓʹ࠷దԽ͢Δ͜ͱͰརศੑͷҡ࣋ɾෆཁͳίετൃੜͷճආ
    ᶄ ࠷దͳαʔϏεΛࣗಈతʹఏڙ
    → ঢ়گ΍ݸʑਓͷ೺Ѳ΍࠷దԽ͕ࣗಈతʹߦΘΕΔ͜ͱͰӡ༻ෛՙΛ௿ݮ

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  12. ͳΊΒ͔ͳγεςϜ

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  13. • ৘ใγεςϜͷ͜ͱΛ͍͏ͷΈͳΒͣɼޓ͍ʹӨڹΛٴ΅͠߹͏ܧଓతͳؔ܎
    ʹ͋Δར༻ऀʢϢʔβ͓Αͼ։ൃӡ༻ऀʣͱ৘ใγεςϜͱ͔ΒͳΔ૯ମͱ͠
    ͯͷγεςϜ
    14
    ͳΊΒ͔ͳγεςϜ
    ग़ॴ܀ྛ݈ଠ࿠ ࡾ୐༔հ দຊ྄հ ͳΊΒ͔ͳγεςϜΛ໨ࢦͯ͠ ϚϧνϝσΟΞɺ෼ࢄɺڠௐͱϞόΠϧʢ%*$0.0ʣγϯϙδ΢Ϝ # +VM

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  14. • ཁ݅ʢ1ʣɿར༻ऀͱ৘ใγεςϜͱ͕ܧଓతͳؔ܎ΛऔΓ࣋ͭաఔʹ͓͍
    ͯɼར༻ऀͦΕͧΕʹݻ༗ͷίϯςΩετΛݟग़ͨ͠Γɼ৽ͨͳίϯςΩετ
    Λ૑ग़ͨ͠ΓͰ͖Δ͜ͱ
    • ཁ݅ʢ2ʣɿཁ݅ʢ1ʣΛɼར༻ऀʹΑΔ໌ࣔతͳૢ࡞Λ՝͢͜ͱͳ࣮͘ݱͰ
    ͖Δ͜ͱ
    • ཁ݅ʢ3ʣɿཁ݅ʢ1ʣ͓Αͼʢ2ʣʹΑͬͯಘΒΕͨίϯςΩετʹجͮ
    ͖ɼ৘ใγεςϜ͕ར༻ऀʹରͯ͠࠷దͳαʔϏεΛࣗಈతʹఏڙͰ͖Δ͜ͱ
    15
    ͳΊΒ͔ͳγεςϜ
    ग़ॴ܀ྛ݈ଠ࿠ ࡾ୐༔հ দຊ྄հ ͳΊΒ͔ͳγεςϜΛ໨ࢦͯ͠ ϚϧνϝσΟΞɺ෼ࢄɺڠௐͱϞόΠϧʢ%*$0.0ʣγϯϙδ΢Ϝ # +VM

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  15. 2.
    ͳΊΒ͔ͳηΩϡϦςΟ

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  16. • ڧݻͳηΩϡϦςΟΛ࣮ݱ͢ΔηΩϡϦςΟରࡦͷͨΊʹ͸ɼརศੑ΍ίετ
    ͷ໘Ͱͷॊೈੑͱɼӡ༻ͷ໘Ͱͷޮ཰తͳҡ࣋؅ཧΛཱ͕྆ඞཁ
    • ʮͳΊΒ͔ͳγεςϜʯͷཁ݅Λຬͨ͢͜ͱͰ͜ΕΛղܾ͢Δ
    17
    ͳΊΒ͔ͳγεςϜʹΑΔηΩϡϦςΟͷ࣮ݱ
    ᶃ ݸʑਓʹ߹Θͤͨඞཁ࠷খݶͷηΩϡϦςΟରࡦʹΑͬͯॊೈੑΛ֬อ
    → ͳΊΒ͔ͳγεςϜʹ͓͚Δཁ݅ʢ3ʣ
    ᶄ ར༻ऀͱηΩϡϦςΟγεςϜͷؔ܎ੑΛࣗಈ͔ͭܧଓతʹݕग़ɽݸผԽΛ
    ؚΉηΩϡϦςΟରࡦΛޮ཰తʹҡ࣋؅ཧ
    → ͳΊΒ͔ͳγεςϜʹ͓͚Δཁ݅ʢ1ʣͱʢ2ʣ

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  17. 18
    ͳΊΒ͔ͳηΩϡϦςΟ
    ग़ॴʮϖύϘݚڀॴʯºʮίίϯٕज़ݚڀࣨʯʮͳΊΒ͔ͳηΩϡϦςΟʯͷ࣮ݱʹ޲͚ͨڞಉݚڀ੒Ռͱͯ͠࿦จ͓ΑͼΦʔϓϯιʔειϑτ΢ΣΞΛൃද
    γεςϜͷར༻΍ӡ༻ʹ͓͚Δ͞·͟·ͳোนʢΰπΰ
    πʣΛऔΓআ͖ɺݸʑਓʹ߹ΘͤͨʢύʔιφϥΠζ͠
    ͨʣηΩϡϦςΟΛඞཁͳ࣌ʹඞཁ࠷খݶͷػೳͱͯ͠
    ఏڙ͢Δ͜ͱͰɺརศੑΛଛͳΘͣɺ͔ͭϓϥΠόγʔ
    ৘ใ΋कΓͳ͕ΒηΩϡϦςΟΛ࣮ݱ͢Δ࢓૊Έɻ
    l
    z

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  18. • ৘ใγεςϜͷڥքɼ͢ͳΘͪϢʔβ΋͘͠͸։ൃӡ༻ऀͱίΞαʔϏεͷத
    ؒʹҐஔ͢Δ
    • ར༻ऀଆͷEdgeͰ͸ཁٻʹର͢ΔηΩϡϦςΟݕূΛߦ͏
    • ཁٻʹର͢ΔηΩϡϦςΟཁ݅ͷબ୒͸ݸਓ·ͨ͸ݸʑʹ࠷దԽ
    • ։ൃऀଆͷEdgeͰ͸ίΞαʔϏεʹର͢ΔηΩϡϦςΟཁ݅Λड͚෇͚ɼ۩
    ମɾݸผͷϧʔϧͷࣗಈੜ੒΍ৼΓ෼͚Λߦ͏ɽ
    • ηΩϡϦςΟΦʔέετϨʔλͱͷ࿈ܞ
    20
    Edge

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  19. 21
    ηΩϡϦςΟΦʔέετϨʔλ
    ϩάऩूɾݕࡧ
    จ຺ղੳ
    ϧʔϧద༻
    ηΩϡϦςΟΦʔέετϨʔλ
    ৘ใγεςϜͱϢʔβͱͷ΍ΓͱΓʹؔ͢Δ๲େͳϩάΛऩ
    ू͠ɺඞཁʹԠͯ͡ݕࡧͰ͖ΔػೳΛఏڙ
    ཁٻΛ࣌ܥྻʹଊ͑Δ͜ͱͰจ຺Λ೺Ѳ͠ɺͦͷ಺༰΍ม
    Խʹରͯ͠ద੾ͳϥϕϦϯάͱܖػΛ༩͑Δ
    จ຺ղੳ͔ΒಘΒΕͨϥϕϦϯά΍ܖػʹج͍ͮͯɺ࠷ద͔
    ͭඞཁ࠷খݶ౓ͷηΩϡϦςΟΛఏڙ͢ΔαʔϏεΛߏ੒
    ཁٻจ຺ʹରͯ͠ɺͦͷ࣌ʑʹඞཁ࠷খݶ౓ͷηΩϡϦςΟ
    ͷఏڙΛҡ࣋͢Δ࢓૊ΈɻԼهͷίϯϙωϯτ͔ΒͳΔɻ

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  20. 3.
    ͳΊΒ͔ͳηΩϡϦςΟͷ
    ࣮ݱʹ޲͚ͨ෦෼ݚڀ

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  21. SQLΫΤϦͷϗϫΠτϦετࣗಈ࡞੒

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  22. • ͳΊΒ͔ͳηΩϡϦςΟʹݶΒͣɼҰൠతͳηΩϡϦςΟରࡦͰ͸ɼอޢର৅
    ͷ৘ใγεςϜʹ௥ैͯ͠ɼηΩϡϦςΟཁ݅Λߋ৽͢Δඞཁ͕͋Δɽ
    • ఏҊγεςϜͰ͸ɼݸʑਓʹ߹ΘͤͨηΩϡϦςΟΛඞཁͳ࣌ʹඞཁ࠷খݶͷ
    ػೳͱͯ͠ఏڙ͢ΔͨΊʹηΩϡϦςΟཁ݅͸ଟ༷Խ͢Δɽ
    • ͜ΕΒΛӡ༻ෛՙΛߴΊͣʹղܾ͢Δʹ͸ɼηΩϡϦςΟཁ݅ͷߋ৽ΛਓखΛ
    հͣ͞ʹߦ͑Δ࢓૊Έ͕ඞཁͱͳΔɽ
    24
    ӡ༻໘Ͱͷޮ཰తͳҡ࣋؅ཧ

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  23. SQLΫΤϦͷϗϫΠτϦετࣗಈ࡞੒
    25
    ໺ଜ޸໋ Ѩ෦ത ੁ໺఩ ྗ෢݈࣍ দຊ྄հ 8FCΞϓϦέʔγϣϯςετΛ༻͍ͨ42-ΫΤϦͷϗϫΠτϦετࣗಈ࡞੒ख๏ Πϯλʔωοτͱӡ༻ٕज़γϯϙδ΢Ϝ࿦จू WPMVNF QBHFTr OPW
    • WebΞϓϦέʔγϣϯͷࣗಈςετ࣌ʹൃߦ͞
    ΕΔΫΤϦΛߏ଄Խ͠ɼσʔλϕʔεFirewallͷ
    ϗϫΠτϦετͱͯ͠ར༻
    • ఏҊγεςϜͰ͸ɼ։ൃӡ༻ऀଆͷEdgeʹର͠
    ͯWebΞϓϦέʔγϣϯͷࣗಈςετ͕ొ࿥͞
    Εɼੜ੒͞ΕͨϗϫΠτϦετΛηΩϡϦςΟ
    ཁ݅ͱͯ͠ߋ৽

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  24. ଟ༷Խ͢ΔηΩϡϦςΟཁ݅ͷࣗಈੜ੒
    26
    ҰൠϢʔβ
    6TFS"ཁٻ༻ͷ*'
    6TFS#ཁٻ༻ͷ*'
    0QT"ͷηΩϡϦςΟཁٻ
    0QT"
    ϢʔβγεςϜ܈ ӡ༻։ൃऀγεςϜ
    ৘ใγεςϜ
    ݸผͷཁٻ
    ʢจ຺ʣ
    ηΩϡϦςΟ
    ΦʔέετϨʔλ
    ಛݖϢʔβ
    ΞϓϦέʔγϣϯͷࣗಈςετ͔ΒηΩϡϦςΟཁٻΛࣗಈ
    ੜ੒<>
    ࠓޙɺϢʔβཁٻͷจ຺ʹԠͯ͡ɺͷηΩϡϦςΟཁٻΛ
    ద༻͠Θ͚Δʢ͋Δ42-จΛಛݖϢʔβʹ͸ڐՄ͢Δ౳ʣऔ
    Γ૊ΈΛߦ͏
    ໺ଜ޸໋ Ѩ෦ത ੁ໺఩ ྗ෢݈࣍ দຊ྄հ 8FCΞϓϦέʔγϣϯςετΛ༻͍ͨ42-ΫΤϦͷϗϫΠτϦετࣗಈ࡞੒ख๏ Πϯλʔωοτͱӡ༻ٕज़γϯϙδ΢Ϝ࿦จू WPMVNF QBHFTr OPW

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  25. 28
    طଘݚڀ: Hayabusa
    Ѩ෦ത ౡܚҰ ٶຊେี ؔ୩༐࢘ ੴݪ஌༸ Ԭా࿨໵ தଜྒྷ দӜ஌࢙ ࣰాཅҰ ࣌ؒ࣠ݕࡧʹ࠷దԽͨ͠εέʔϧΞ΢τՄೳͳߴ଎ϩάݕࡧΤϯδϯͷ࣮ݱͱධՁ ৘ใॲཧֶձ࿦จࢽ ר߸ QBHFT NBS
    • ͳΊΒ͔ͳηΩϡϦςΟʹݶΒͣɼҰൠతͳηΩϡϦςΟରࡦͰ͸ɼϩάΛҰ
    ՕॴʹूΊɼूதॲཧΛߦ͏৔߹͕ଟ͍
    • େྔͷϩάΛऩू͔ͭ͠ॲཧ͢ΔͨΊͷࣄલݚڀͱͯ͠ɼHayabusaΛ։ൃ
    • ධՁ࣮ݧͰ͸ɼ144ԯߦͷsyslogσʔλ΁ͷશจݕࡧ͕໿7ඵͰ׬ྃ

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  26. • ϚΠΫϩηΩϡϦςΟαʔϏε͕࣮ߦ͞ΕΔEdgeࣗମʹେྔͷϩά͕஝ੵ͞
    ΕΔɼ͔ͭEdgeͷ਺͸๲େʢ1ສʙʣ
    • ϩάΛूதతʹॲཧͤ͞Δʹ͸ɺϩάͷసૹ஗Ԇ΍ଳҬͷѹഭ͕ݒ೦͞ΕΔ
    • EdgeͰͷ෼ࢄॲཧ
    • EdgeͷதͰࣗ཯తʹॲཧΛ׬݁ͤ͞Δ
    • EdgeͷதͰඞཁͳσʔλͷΈूܭͯ͠ɺΦʔέετϨʔλʹ఻ୡ
    29
    EdgeΛ૝ఆͨ͠ϩάॲཧ

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  27. Scalable Edge Log Processing
    30
    • ϩάॲཧΛEdge΁دͤΔ
    • EdgeͰͷϩά஝ੵ
    • EdgeͰͷϩάॲཧͷ׬݁ʢࣗݾ׬݁ or ݁
    ՌͷΈ֎෦΁సૹʣ
    • αʔϏεσΟεΧόϦʔͷԠ༻
    • EdgeͰಈ͘ϚΠΫϩαʔϏεͷϩάΛऩ
    ूɾॲཧ
    • ͦͷͨΊͷϚΠΫϩαʔϏε΁ͷ࠷దԽϧʔ
    ςΟϯά

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  28. • Edge͕ಁաతʹৼΔ෣͏ͨΊʹ͸ύϑΥʔϚϯε͕ॏཁ
    • ҰํͰɼݸਓԽʹΑͬͯEdge਺͕૿Ճ͢ΔͨΊɼࢿݯࡃ഑ͷ࠷దԽ͕ٻΊΒ
    ΕΔɽ
    • ಉ༷ʹɼݸਓԽʹ൐͍֤Edgeͷଟ༷ੑ͕૿ͨ͢ΊɼखಈͰͷνϡʔχϯά͸
    ࠔ೉ͱͳΔɽ
    32
    Edgeʹ͓͚ΔࢿݯεέδϡʔϦϯάͷඞཁੑ

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  29. 33
    Edgeʹ͓͚ΔࢿݯεέδϡʔϦϯάͷඞཁੑ
    &EHF
    ϚΠΫϩηΩϡϦςΟαʔϏε࣮ߦͷฒྻԽ ֤ϚΠΫϩηΩϡϦςΟαʔϏεͷ࣮ߦج൫ͷΦʔτεέʔϦϯά
    • ύϑΥʔϚϯε޲্ʹ͸ϚΠΫϩηΩϡϦςΟαʔ
    Ϗε࣮ߦͷฒྻԽ΍࣮ߦج൫ͷεέʔϦϯά͕༗ޮ
    • ͜ΕΒΛෛՙ΍ࢿݯ੍໿Λߟྀͯ͠࠷దԽ͍ͨ͠
    QSPDFTTͰෳ਺ϚΠΫϩηΩϡϦςΟαʔ
    Ϗε͕࣮ߦ͞ΕΔ৔߹ͳͲ
    ֤ϚΠΫϩηΩϡϦςΟαʔϏε͕ίϯς
    φͰఏڙ͞ΕΔ৔߹ͳͲ
    ⁞ ⁞  

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  30. • ϑΟʔυόοΫ੍ޚΛ༻͍ͯɼର৅ͷλεΫͷಛੑΛࣄલʹ஌Δ͜ͱͳ͘ɼ
    ൓Ԡత͔ͭܧଓతʹ࠷దͳฒߦ਺ΛٻΊΔ
    • ఏҊγεςϜͰ͸ɼݸผԽ͞ΕͨηΩϡϦςΟݕূ಺༰ͱॲཧ࣌ؒΛࣄલ
    ʹ஌Δ͜ͱͳ͘ɼ࠷దͳ૊Έ߹ΘͤΛ࣮ߦ࣌ʹࣗಈͰಋ͘
    Kaburaya
    34
    :VTVLF.JZBLF 0QUJNJ[BUJPOGPS/VNCFSPGHPSPVUJOFT6TJOH'FFECBDL$POUSPM (PQIFS$PO.BSSJPUU.BSRVJT4BO%JFHP.BSJOB $BMJGPSOJB +VMZ

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  31. 4.
    ߟ࡯ͱ·ͱΊ

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  32. • ͳΊΒ͔ͳγεςϜͷཁ݅ʹج͖ͮηΩϡϦςΟରࡦͷݸਓ΁ͷ࠷దԽΛࣗಈ͔
    ͭܧଓతʹߦ͏ηΩϡϦςΟγεςϜΛఏҊ
    • EdgeͰͷϩάऩूɾݕࡧͷ؍఺͔ΒHayabusaͷ֦ு
    • ޮ཰తͳҡ࣋؅ཧʹඞཁͳηΩϡϦςΟఆٛͷࣗಈੜ੒
    • ݸผԽ͞Εͨଟ༷ͳ؀ڥʹ͓͚ΔΦʔτεέʔϦϯάͷ࠷దԽ
    • ࠓޙ͸ίϯςΩετղੳͱηΩϡϦςΟରࡦͷϚονϯάͷ࣮ݱͱEdgeͷ෺ཧత
    ͳ഑ஔ΍ܦ࿏બ୒ʹؔ͢Δݕ౼ΛਐΊΔ
    • ෳ਺ͷ৘ใγεςϜΛԣஅ͢Δ؀ڥΛલఏͱͨ͠EdgeͷઃܭΛ௨࣮ͯ͠༻ੑͷ
    ߴ͍γεςϜΛ࣮ݱ͢Δ 36
    ߟ࡯ͱ·ͱΊ

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