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Androidでユーザーの大切なデータを預かる

 Androidでユーザーの大切なデータを預かる

【第3回】MoquMoquCOM@恵比寿【もくもく会】LT発表資料
https://eventdots.jp/event/615079

- Qiita記事
http://qiita.com/KazaKago/items/ec1a609feb6d10286e19

- Github
https://github.com/KazaKago/Cryptore

16d3962b8f11b7e801dacb129d20d8dd?s=128

KazaKago

March 26, 2017
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  1. ɹɹɹɹɹͰϢʔβʔͷ େ੾ͳσʔλΛ༬͔Δ ʙͲ͜·Ͱରࡦ͢Ε͹ηΩϡϦςΟ͕ ୲อ͞ΕͯΔͬͯݴ͑Δͷʁʙ

  2. ࣗݾ঺հ w ాଜݠհʢ!,B[B,BHPʣ w גࣜձࣾΠάχεॴଐ w ࿀Ѫɾࠗ׆ϚονϯάαʔϏε ʮXJUIʯ։ൃϝϯόʔ w "OESPJE։ൃྺɿ͍͍ͩͨ೥͘Β͍

  3. ϢʔβʔͷσʔλΛ༬͔Δ w "OESPJEΞϓϦʹݶΒͣɺΤϯδχΞͱͯ͠׆ಈ͠ ͍ͯΕ͹ϢʔβʔͷσʔλΛΞϓϦ಺΍αʔόʔʹ ༬͔Δ͜ͱ͸Α͋͘Δͱࢥ͍·͢ ݸਓ৘ใͩͬͨΓɺύεϫʔυͩͬͨΓɺτʔΫϯͩͬͨΓʜ

  4. w ػີσʔλΛΞϓϦ಺ʹอଘ͢Δ৔߹ɺ҉߸ԽΛ͢ Δͱࢥ͍·͕͢ɺ"OESPJEͷ৔߹ͨͩ҉߸Խͨͩ͠ ͚Ͱ͸҆৺͢Δͷ͸·ͩૣ͍Ͱ͢ʂ w ҉߸ԽΛߦ͏ࡍ͸෮߸Խ͢ΔͨΊͷ伴Ͱ͋Δʮ҉߸ ԽΩʔʯʹඞͣΞϓϦ಺ͷͲ͔͜ʹ͓࣋ͬͯ͘ඞཁ ͕͋Γ·͢ ҉߸Խͯ͠΋ʜ ɾ҉߸ԽΩʔ

    ɾ҉߸Խ͞Εͨσʔλ ɾ෮߸Խख๏ શ෦࣋ͬͯΔΑʂ
  5. "OESPJEʹ͓͚Δ՝୊ w ୺຤͔ΒΞϓϦͱσʔλΛൈ͖ग़͢ͷ͕༰қ w σόοάΛ0/ʹͯ͠BECCBDLVQ͢Δ͚ͩ w +BWBͷݴޠ࢓্༷ϦόʔεΤϯδχΞϦϯά͕༰қ w ࣌ؒΛ͔͚Ε͹҉߸Խ͞Εͨจࣈྻ΍҉߸Խͷख๏ɺ҉߸ԽΩʔ· Ͱநग़͢Δ͜ͱ΋Մೳ

    w ιʔεΛ೉ಡԽͨ͠Γɺ$ݴޠΛܦ༝ͯ͠ղੳ͞Εʹ͘͘͢Δख๏ ΋͋Δ͕ղੳ͞Εͳ͍ͱ͍͏อূ͸ͳ͍ w ͦ΋ͦ΋͋Ε͜Εߟ͑ͯରԠ͢ΔͷΊΜͲ͍͘͞ΑͶ
  6. None
  7. "OESPJE,FZ4UPSF4ZTUFN w IUUQTEFWFMPQFSBOESPJEDPNUSBJOJOHBSUJDMFT LFZTUPSFIUNM w "OESPJE "1* ͔Β04ͷ҆શͳྖҬ ʢ$SFEFOUJBM4UPSBHFʣʹ҉߸ԽΩʔΛอଘ͢Δ͜ ͱ͕Ͱ͖ΔΑ͏ʹͳΓ·ͨ͠ɻ

    w ։ൃऀ͕"OESPJEҎ߱ͷ୺຤޲͚ʹରԠͨ͠ίʔ υΛهड़͢Δ͜ͱͰϦόʔεΤϯδχΞϦϯά͞Εͯ ΋伴Λൈ͔Εͳ͍Α͏ʹରࡦ͢Δ͜ͱ͕Ͱ͖·͢ɻ
  8. <એ఻>$SZQUPSF<એ఻> w IUUQTHJUIVCDPN,B[B,BHP$SZQUPSF w "OESPJE,FZ4UPSF4ZTUFNΛΞϓϦ಺Ͱͷจࣈྻ ҉߸ԽʹಛԽͤͯ͞؆୯ʹѻ͑ΔΑ͏ʹͨ͠ϥΠϒ ϥϦɻ w ʮ"OESPJEͰ҉߸Խͷൿີ伴ΛʢͳΔ΂͘ʣ҆શʹ อ࣋͢ΔͨΊͷิॿϥΠϒϥϦ࡞ͬͨʯͱ͍͏

    2JJUBهࣄΛॻ͍ͨͷͰͦͪΒͰ΋ΈͯͶʂ ΈΜͳ࢖ͬͯͶʂʂʂʂʢએ఻ʣ
  9. ͪͳΈʹJ04͸ʁ w J04͸୺຤͔ΒΞϓϦͱσʔλΛൈ͖ग़ͨ͠ΓɺϦ όʔεΤϯδχΞϦϯάΛߦ͏ͷ͸ࠔ೉Ͱ͋Δͷͱ ΩʔνΣʔϯͷଘࡏʹΑΓΞϓϦΛղੳ͞ΕΔϦε Ϋͱͯ͠͸"OESPJEΑΓ͸গͳ͍Ͱ͢ w ΋ͪΖΜώϡʔϚϯΤϥʔʹΑΔ৘ใྲྀग़͸๷͛ͳ ͍ͷͰJ1IPOFϢʔβʔ͔ͩΒͱݴͬͯ҆৺ͪ͠Ό ͩΊͰ͢ʂ

  10. ͋Γ͕ͱ͏͍͟͝·ͨ͠