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blockchain tokyo #8 LT コンソーシアム型ブロックチェーンの設計考察@医療データ

5473e201512d6185624919c9dfc34cf0?s=47 tomomoto_Lv3
June 22, 2018
Programming
0
190

blockchain tokyo #8 LT コンソーシアム型ブロックチェーンの設計考察@医療データ

シングルポイントのハックでは 検知されないデータ改ざんできないような コンソーシアム型ブロックチェーンの設計考察

5473e201512d6185624919c9dfc34cf0?s=128

tomomoto_Lv3

June 22, 2018
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Transcript

  1. CMPDLDIBJOUPLZP-5 γϯάϧϙΠϯτͷϋοΫͰ͸ ݕ஌͞Εͳ͍σʔλվ͟ΜͰ͖ͳ͍Α͏ͳ ίϯιʔγΞϜܕϒϩοΫνΣʔϯͷઃܭߟ࡯ αεϝυגࣜձࣾ ຊڮஐޫ ެ։༻ࢿྉ Ұ෦վม

  2. ࣗݾ঺հ ໊લຊڮஐޫ ॴଐ ɹେख4*FSݚڀһ ɹˠେख8FCαʔϏεܥاۀػցֶशΤϯδχΞ ɹˠσδλϧҩྍελʔτΞοϓαεϝυ ג $50 4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO

  3. ෰ༀ৘ใɺࢦඪଌఆ݁Ռ ࢼݧ؅ཧγεςϜ F1SPΞϓϦ ϒϩοΫνΣʔϯ ػցֶश ױऀ৘ใ ϓϥηϘׂ෇ ͳͲ ױऀ৘ใೖྗ ൃߦ͞Εͨ*%Λ౉͢

    ෰ༀ༧ఆɺࢦඪ಺༰ $3$ҩࢣ ඃݧऀ $3"੡ༀձࣾϞχλʔ ϞχλϦϯάɺΞϥʔτ վ᜵ͳ͠Λอূͨ͠σʔλ ϦΞϧλΠϜʹσʔλ֬ೝ ҩྍ༻σʔλͷσʔλϓϥοτϑΥʔϜ 4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO ඃݧऀ͔ΒϒϩοΫνΣʔϯʹ௚઀σʔλΛॻ͖ࠐΈ ਓ਺͸ଟͯ͘΋ສਓҎԼɺਓ͋ͨΓ਺ेϩάఔ౓ ʢݱঢ়͸࣮ূ࣮ݧͱ࣮ͯ͠ࢪɻʣ

  4. ϒϩοΫνΣʔϯͷλΠϓબ୒

  5. ϒϩοΫνΣʔϯͱ͸ 4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO ॻ͖׵͑ෆՄೳͳڞ༗୆ாͰ͋Δ ˞ϒϩοΫνΣʔϯΛ࢖͑͹վ͟ΜΛશͯ๷͛ΔΘ͚Ͱͳ͍ ϋογϡνΣʔϯ ίϯηϯαε σʔλ෼ࢄڞ༗ %BUB )BTI %BUB

    )BTI )BTI %BUB )BTI )BTI ύϒϦοΫܕ ίϯιʔγΞϜܕ 1P8ͳͲܦࡁ߹ཧੑʹ ج͍ͮͨ໰୊Λղ͘͜ͱ ͰίϯηϯαεΛಘΔ ίϯιʔγΞϜʹࢀՃϝ ϯόʔͷଟ਺ܾͳͲͰί ϯηϯαεΛಘΔ

  6. ϒϩοΫνΣʔϯͷλΠϓબ୒ ɾେྔͷσʔλ͸ൃੜ͠ͳ͍ ɾσʔλվ͟ΜʹΑΔརӹ͕େ͖͍ 4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO ύϒϦοΫܕͰ͸վ͟Μ͕ى͖΍͍͢ ίϯιʔγΞϜܕΛબ୒ ίϯιʔγΞϜܕ͸ϒϩοΫνΣʔϯͳͷ͔ʁͱ͍͏࿩΋͋Γ·͕͢ɾɾɾ )ZQFS-FHFS'BCSJD Λ࠾༻

  7. தܧαʔό͋Γͳ͠

  8. தܧαʔόͳ͠ͷ৔߹ ઐ༻εϚϗΞϓϦ ϒϩοΫνΣʔϯαʔό܈ 4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO ɾ ɾ ɾ ɾඃݧऀ਺෼ͷ伴؅ཧʢଟ͍ʣ ɾϋοΫ͞ΕͨΫϥΠΞϯτͷΈվ͟Μ͞ΕΔ ɾɾɾ

  9. தܧαʔό͋Γͷ৔߹ ઐ༻εϚϗΞϓϦ தܧαʔό ϒϩοΫνΣʔϯαʔό܈ 4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO ɾ ɾ ɾ ɾதܧαʔό਺෼ͷ伴؅ཧʢগͳ͍ʣ ɾதܧαʔό୆ͷϋοΫʹΑͬͯ޿͘վ͟Μ͞ΕΔ

  10. ෳ਺தܧαʔόར༻ʹΑΔରԠ ઐ༻εϚϗΞϓϦ தܧαʔό ϒϩοΫνΣʔϯαʔό܈ 4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO ɾ ɾ ɾ ɾதܧαʔό਺෼ͷ伴؅ཧͰվ͟Μʹ΋ڧ͍ ɾϒϩοΫνΣʔϯ΁ͷॻ͖ࠐΈσʔλ਺͕૿͑Δ

    ॻ͖ࠐΈޙ σʔλൺֱ

  11. தܧαʔόͱεϚϗΞϓϦؒͷೝূ

  12. ͭͷೝূαʔό ઐ༻εϚϗΞϓϦ தܧαʔό ɾதܧαʔό͔ΒೝূαʔόʹUPLFOೝূ࣮ࢪ ɾதܧαʔόΛͭϋοΫ͢Δ͜ͱͰɺվ͟ΜՄೳ ϒϩοΫνΣʔϯαʔό܈ ೝূαʔό ඃݧऀͷUPLFO UPLFOೝূ UPLFOೝূ

    4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO

  13. தܧαʔό͝ͱʹೝূαʔό४උ ઐ༻εϚϗΞϓϦ தܧαʔό ɾதܧαʔό͝ͱͷೝূαʔόͰUPLFOೝূ࣮ࢪ ɾதܧαʔό͝ͱʹΞΧ΢ϯτ؅ཧ͢Δඞཁ͕͋Δ ϒϩοΫνΣʔϯαʔό܈ ೝূαʔό ඃݧऀͷதܧαʔόຖͷ UPLFO UPLFOೝূ

    UPLFOೝূ 4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO

  14. ػցֶशʹΑΔݕ஌

  15. ػցֶशʹΑΔݕ஌ ϒϩοΫνΣʔϯαʔό܈ ࢦඪɾ೔෇ຖͷ ෆਖ਼ݕ஌ ඃݧऀຖͷ ෆਖ਼ݕ஌ පӃຖͷ ෆਖ਼ݕ஌ ɾϒϩοΫνΣʔϯ্ͷσʔλΛ༷ʑͳཻ౓Ͱ෼ੳ ɾೖྗϛε΍පӃͷ΍ΓํͷࠩҟΛݕग़

    4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO

  16. )BEPPQͷྺ࢙͔Βߟ͑Δ #MPDLDIBJOͷҐஔ෇͚

  17. )BEPPQ#MPDLDIBJOൺֱ ɾϩΪϯάͱͯ͠ѻ͏͔ɺ%#ͱͯ͠ѻ͏͔ ɾ%#ͱͯ͠࢖͏৔߹ɺ)#BTFಉ༷ʹ$"1ఆཧͷલఏ͔Β Կ͔Λ٘ਜ਼ʹ͢Δඞཁ͕͋Δ DSFBUFB DSFBUFC VQEBUFB EFMFUFC DSFBUFD BɺD

    4VTNFEQSPQSJFUBSZBOEDPOpEFOUJBMJOGPSNBUJPO