Upgrade to Pro — share decks privately, control downloads, hide ads and more …

Zerochain: A privacy-protecting layer on top of...

Osuke
July 22, 2019
Technology
1
1.1k

Zerochain: A privacy-protecting layer on top of Substrate

Osuke

July 22, 2019
Tweet

More Decks by Osuke

See All by Osuke
特許データを使ったマルチモーダルAIの検証事例@LLMProd#4
osuke
0
170
dbtを中心に据えた データ分析とプロダクト開発
osuke
1
960
LayerX Privacy Tech事業部紹介 Tech編
osuke
0
160
(SCIS2021) Anonify: プライバシーを保護した 検証可能な状態遷移モジュール
osuke
1
350
Rustで実装された AWS Nitro Enclaves CLIを読む
osuke
0
320
Rustのパフォーマンスに関するTips
osuke
3
2.9k
ARM TrustZone入門 / ARM TrustZone intro
osuke
3
8.2k
Anonify
osuke
3
990
Rustのasync/awaitとスケジューラの話 / rust-async-await
osuke
9
3.8k

Other Decks in Technology

See All in Technology
My small contributions - Fujiwara Tech Conference 2025
ijin
0
1.4k
メールヘッダーを見てみよう
hinono
0
110
ABWGのRe:Cap!
hm5ug
1
120
深層学習と3Dキャプチャ・3Dモデル生成（土木学会応用力学委員会 応用数理・AIセミナー）
pfn
PRO
0
460
ゼロからわかる！！AWSの構成図を書いてみようワークショップ 問題&解答解説 #デッカイギ #羽田デッカイギおつ
_mossann_t
0
1.5k
AWSマルチアカウント統制環境のすゝめ / 20250115 Mitsutoshi Matsuo
shift_evolve
0
110
技術に触れたり、顔を出そう
maruto
1
150
Oracle Base Database Service 技術詳細
oracle4engineer
PRO
6
54k
[IBM TechXchange Dojo]Watson Discoveryとwatsonx.aiでRAGを実現!事例のご紹介+座学②
siyuanzh09
0
110
自社 200 記事を元に整理した読みやすいテックブログを書くための Tips 集
masakihirose
2
330
2025年に挑戦したいこと
molmolken
0
160
Formal Development of Operating Systems in Rust
riru
1
420

Featured

See All Featured
Embracing the Ebb and Flow
colly
84
4.5k
The Cost Of JavaScript in 2023
addyosmani
46
7.2k
Become a Pro
speakerdeck
PRO
26
5.1k
The Myth of the Modular Monolith - Day 2 Keynote - Rails World 2024
eileencodes
19
2.3k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
28
4.5k
Building a Modern Day 
E-commerce SEO Strategy
aleyda
38
7k
The Pragmatic Product Professional
lauravandoore
32
6.4k
RailsConf 2023
tenderlove
29
970
What's in a price? How to price your products and services
michaelherold
244
12k
Build your cross-platform service in a week with App Engine
jlugia
229
18k
Thoughts on Productivity
jonyablonski
68
4.4k
Save Time (by Creating Custom Rails Generators)
garrettdimon
PRO
29
960

Transcript

  1. ;FSPDIBJO 0TVLF4VEP!-BZFS9*OD+VM

  2. ;FSPDIBJO BQSJWBDZQSPUFDUJOHCMPDLDIBJO w 0OUPQPG4VCTUSBUF w 1SPWJEJOHTPNFTVCTUSBUFNPEVMFTBOEUPPMLJUTGPS QSPUFDUJOHTFOTJUJWFEBUBTUPSFEPODIBJO

  3. 1SJWBDZJO;FSPDIBJO w 5IFpSTUHPBMPG;FSPDIBJOJTQSPWJEJOHTFDVSFBOE F⒏DJFOUQSJWBDZQSPUFDUJOHBTTFUTQSPUPDPM w 5SBOTGFSSFEBNPVOUT FBDIBDDPVOUCBMBODF BOE JEFOUJUJFTPGTFOEFSBOESFDJQJFOUBSFQSJWBUF

  4. ;FSPDIBJOPWFSWJFX 1SJWBDZPSJFOUFEBQQMJDBUJPOT DPOpEFOUJBMBOPOZNPVTQBZNFOU FUDʜ ;FSPDIBJO ;FUIFS [L4OBSLT 4VCTUSBUF

  5. 4VCTUSBUF w "CBTJTCMPDLDIBJOQMBUGPSNEFWFMPQFECZ1BSJUZ w 8FDBOCVJMEBQQMJDBUJPOTQFDJpDNPEVMFTPOUPQPGJU %BUBCTF 4VCTUSBUF 11 OFUXPSLJOH $POTFOTVT

    5YRVFVF ɾɾɾ

  6. 4VCTUSBUFNPEVMFTBOESVOUJNF

  7. ;FUIFS w ;FUIFSJTBOF⒏DJFOU andGVMMZEFDFOUSBMJ[FE,DPOpEFOUJBMQBZNFOU NFDIBOJTNUIBUJTDPNQBUJCMFXJUITNBSUDPOUSBDUQMBUGPSNT w )PNPNPSQIJDFODSZQUJPOTDIFNFIJEFTUSBOTGFSSFEBNPVOUTBOE BDDPVOUCBMBODFT w "OBDDPVOUCBTFEBQQSPBDIGPSF⒏DJFODZBOEVTBCJMJUZ

    w "WPJEJOH6590BDDVNVMBUJPO w ;FSPDIBJOVTFT[L4/"3,TJOTUFBEPG4JHNBCVMMFUT w 5IFTUBUFNFOUTJO[L4/"3,TBSFCBTFEPO;FUIFSQSPUPDPM w #FOFEJLU#„VO[ 4IBTIBOL"HSBXBM .BIEJ;BNBOJ BOE%BO#POFI

  8. $POpEFOUJBMQBZNFOU "DDPVOUCBTFEIPNPNPSQIJDFODSZQUJPOTDIFNF "EESFTT@BMJDF PODIBJO "EESFTT@CPC "MJDFTFOET FODSZQZFEDPJOTUP#PC

  9. $POpEFOUJBMQBZNFOU "DDPVOUCBTFEIPNPNPSQIJDFODSZQUJPOTDIFNF "EESFTT@BMJDF PODIBJO "EESFTT@CPC -JGUFE&MHBNBM FODSZQUJPO &OD  &OD

     "MJDFTFOET FODSZQZFEDPJOTUP#PC

  10. $POpEFOUJBMQBZNFOU "DDPVOUCBTFEIPNPNPSQIJDFODSZQUJPOTDIFNF "EESFTT@BMJDF PODIBJO "EESFTT@CPC -JGUFE&MHBNBM FODSZQUJPO &OD  &OD

     &OD  &OD  Š &ODSZQUFE BNPVOU 5Y "MJDFTFOET FODSZQZFEDPJOTUP#PC

  11. $POpEFOUJBMQBZNFOU "DDPVOUCBTFEIPNPNPSQIJDFODSZQUJPOTDIFNF "EESFTT@BMJDF PODIBJO "EESFTT@CPC -JGUFE&MHBNBM FODSZQUJPO &OD  &OD

      &OD   &OD  6QEBUFE CBMBODF &OD  &OD  Š &ODSZQUFE BNPVOU 5Y "MJDFTFOET FODSZQZFEDPJOTUP#PC

  12. $POpEFOUJBMQBZNFOU "DDPVOUCBTFEIPNPNPSQIJDFODSZQUJPOTDIFNF "EESFTT@BMJDF PODIBJO "EESFTT@CPC -JGUFE&MHBNBM FODSZQUJPO &OD  &OD

      &OD   &OD  6QEBUFE CBMBODF &OD  &OD  Š &ODSZQUFE BNPVOU 5Y "MJDFTFOET FODSZQZFEDPJOTUP#PC %FDSZQUJPO DPJOT

  13. $POpEFOUJBMQBZNFOU "DDPVOUCBTFEIPNPNPSQIJDFODSZQUJPOTDIFNF "EESFTT@BMJDF PODIBJO "EESFTT@CPC -JGUFE&MHBNBM FODSZQUJPO &OD  &OD

      &OD   &OD  6QEBUFE CBMBODF &OD  &OD  Š &ODSZQUFE BNPVOU 5Y "MJDFTFOET FODSZQZFEDPJOTUP#PC %FDSZQUJPO DPJOT

  14. 7FSJpDBUJPOQBSU YCEFDCECDBCFDDEFBFFFDGDBCGD
 FCDDGBBDECCDEGDGFFBGFCBDBGDFEGDFEE &OD  CZUFT

  15. 7FSJpDBUJPOQBSU YCEFDCECDBCFDDEFBFFFDGDBCGD
 FCDDGBBDECCDEGDGFFBGFCBDBGDFEGDFEE &OD  CZUFT • A transferred amount

    is within a valid range. (Not negative) • Sender has enough balance. • It is encrypted by a correct encryption key • … [L4/"3,T

  16. [L4/"3,T<(SPUI> 1SPWFS 7FSJpFS PODIBJO QSPPG 'GVODUJPO YQSJWBUFJOQVU ZQVCMJDJOQVU 'GVODUJPO ZQVCMJDJOQVU

    ' Y Z

  17. [L4/"3,T<(SPUI> 1SPWFS 7FSJpFS PODIBJO QSPPG 'GVODUJPO YQSJWBUFJOQVU ZQVCMJDJOQVU 'GVODUJPO ZQVCMJDJOQVU

    ' Y Z "NPVOUJTOPUPWFSqPX "NPVOU &ODSZQUFEBNPVOU

  18. [L4/"3,T<(SPUI> QL WL 4FUVQ 'GVODUJPO 1SPWFS 7FSJpFS PODIBJO QSPPG 'GVODUJPO

    YQSJWBUFJOQVU ZQVCMJDJOQVU 'GVODUJPO ZQVCMJDJOQVU ' Y Z "NPVOUJTOPUPWFSqPX "NPVOU &ODSZQUFEBNPVOU

  19. 8IZ[L4/"3,T w 4JHOJpDBOUMZTNBMMQSPPGTBOEF⒏DJFOUWFSJpDBUJPO w (SFBUDPNNVOJUZ BXTPNFUPPMDIBJOTEFWFMPQFECZ;DBTI w %PXOTJEFJTUSVTUFETFUVQ w 4PMVUJPOT

    w .1$ [DBTI  w 6OJWBSTBMBOEVQEBUBCMF434 40/*$

  20. ;FSPDIBJOQSPUPDPM w )ZCSJETPMVUJPOT w ;FUIFS)JHIMFWFMQSJWBDZTDIFNFXIJDIUBLFTBO BDDPVOUCBTFEBQQSPBDI w ;DBTIUPPMDIBJO#BTJT;FSPLOPXMFEHFQSPWJOH TZTUFNT w

    4VCTUSBUF$PSFCMPDLDIBJOMBZFSXIJDIQSPWJEFT 11OFUXPSLJOH EBUBCBTF DPOTFOTVTFOHJOF FUD

  21. "VEJUBCJMJUZ w 'PSSFBMXPSMEVTBHF BVEJUBCJMJUZJTBOJNQPSUBOU BTQFDU w 1SPUFDUJOHGSPNUIJOHTMJLF".- w "QQSPQSJBUFFOUJUJFTBSFTVQQPTFEUPBVEJUDFSUBJO VTFS`TNPOFZqPXTJOTPNFpOBODJBMVTFDBTFT

  22. ,FZDPNQPOFOUTGPSBVEJUBCJMJUZ 3FSBOEPNJ[FE TJHOJOHLFZ 3FSBOEPNJ[FE WFSJGZJOHLFZ 4QFOEJOHLFZ 1SPPGHFOFSBUJPO LFZ %FDSZQUJPOLFZ &ODSZQUJPOLFZ

    1SJWBUFLFZ 1VCMJDLFZ SBOEPNJ[F SBOEPNJ[F

  23. ,FZDPNQPOFOUTGPSBVEJUBCJMJUZ 3FSBOEPNJ[FE TJHOJOHLFZ 3FSBOEPNJ[FE WFSJGZJOHLFZ 4QFOEJOHLFZ 1SPPGHFOFSBUJPO LFZ %FDSZQUJPOLFZ &ODSZQUJPOLFZ

    1SJWBUFLFZ 1VCMJDLFZ SBOEPNJ[F SBOEPNJ[F

  24. $VSSFOUTUBUVTPG;FSPDIBJO w IUUQTHJUIVCDPN-BZFS9DPN[FSPDIBJO w 0QFOTPVSDF w *NQMFNFOUFEJO3VTU

  25. $VSSFOUTUBUVTPG;FSPDIBJO w 4VQQPSUFECZ8FCGPVOEBUJPOHSBOUQSPHSBN w "MQIBWFSJTXPSLJOH w 6OEFSEFWFMPQNFOUGPSQSPEVDUJPOSFBEZ w (FUUJOHTFDVSJUZSFWJFXT NPSFPQUJNJ[BUJPO

    BOE NBLJOHEPDVNFOUBUJPOTʜ

  26. ;'BDF w "OJOUFSGBDFGPSJOUFSBDUJOHXJUI;FSPDIBJO w -PXMFWFMXBMMFUGFBUVSFTBOEDSZQUPHSBQIJDUPPMT w $PNNBOEMJOFVUJMJUJFTQPXFSFECZ;'BDFJT BWBJMBCMFOPX

  27. 'VUVSFXPSLT w "EEJOHJOUFSBTUJOHGBODUJPOBMJUJFT w QSJWBDZNJOUCVSO BUPNJDFYDIBOHFT NVMUJTJHOBUVSFʜ w #FJOHDPNQBUJCMFXJUIBNPEVMFGPS6590CBTFEQSJWBUF DPNQVUBUJPOT

    FY;&9&  w *NQMFNFOUJOHBUPZ4POJD w IUUQTHJUIVCDPN-BZFS9DPNMYTPOJD

  28. 5IBOLZPV