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SubscribeMimbleWimble隱私協議以及其實作 - 賴佳祈
由於場地問題，第二天我們移動到另一棟大樓啦！議程教室變動請見網站上的議程表。
歡迎來到 https://hackmd.io/@coscup/2019 共筆
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Learn More →點擊本頁上方的 開始用 Markdown 一起寫筆記！
手機版請點選上方 按鈕展開議程列表。
MimbleWimble 協議
Confidential Transaction 機密交易
Pedersen commitment
C = v*H + r*Gv: 交易金額r: 致盲因子（私密金鑰）加法同態：先加密再相加 = 先相加再加密
C1 + C2 = (v1*H + r1*G) + (v2*H + r2*G) = (v1+v2)*H + (r1+r2)*GRange Proofs
10 = 15 + (-5)，導致可以
Alice 有 10 Grin，給 Bob -5 Grin，找回 15 Grin，因此需要 range proof 證明所有輸入都大於 0CoinJoin
Onw-Way Aggregate Signatures (OWAS) 單向聚合簽名
Sum(outputs) - Sum(inputs) = Kernel_excess + kernel_offsetX*G = X1*G + X2*GCut-through
輸入輸出相同部份可以不儲存，減少佔用儲存空間
Grin
MimbleWimble 協議的實現，加上 IP 隱藏
Dandelion 蒲公英協議
挖礦演算法：Cuckoo cycle
tags:
COSCUP2019Blockchain and Distributed LedgerIB502