Ethereum 以太坊區塊鏈

Ethereum Blockchain

How does Ethereum work, anyway? (中文翻譯)
Ethereum block architecture (Source file: BlockchainIllustrations)

Smart Contract

Ethereum Smart Contract Security Best Practices
- GitHub ConsenSys/smart-contract-best-practices
RBAC-SC: Role-Based Access Control Using Smart Contract
Decentralized Application Security Project
1. Reentrancy
2. Access Control
3. Arithmetic
4. Unchecked Low Level Calls
5. Denial of Services
6. Bad Randomness
7. Front Running
8. Time Manipulation
9. Short Addresses
10. Unknown Unknowns

Solidity

Learn X in Y minutes, where X=Solidity
Truffle The most popular Ethereum development framework
- Truffle Boxes example applications and project templates
什麼是智能合約(Smart Contract)?
如何撰寫智能合約(Smart Contract)?(I)
如何撰寫智能合約(Smart Contract)?(II)建立加密代幣
如何撰寫智能合約(Smart Contract)?(III)建立標準代幣
OpenZeppelin a framework to build secure smart contracts on Ethereum
Ethereum 智能合約開發筆記：編譯和部署合約的第一種姿勢 - 使用 Remix
Ethereum區塊鏈！智能合約(Smart Contract)與分散式網頁應用(dApp)入門
區塊鏈技術-智能合約Solidity編程語言

亂數

由於區塊高度、timestamp 等不算是真正隨機亂數，可以加上 sender address 並 hash 過來增加亂度

Struct

struct Kitty {
    uint256 genes;
    uint64 birthTime;
    uint16 generation;
}

Modifier

modifier onlyOwner {
    require (msg.sender == owner);
    _;
}

Solidity Modifier Tutorial - Control Functions with Modifiers

Samples

EtherTW/LogoVote2017
EtherTW/tickets A Dapp for meetup tickets
Taiwan Digital Token (TWDT-ETH)
- 0x35A4e77aE040AFc9743157911d39D1451cF2F05d
- 0x381eC72ebf803cb517285990955b2453d0529c46
ICO-tutorial
Binance BNB contract
GolemToken Contract

Multi-Signature Wallet

Vyper

New experimental programming language

EIPs

ERC20 Token Standard

ERC165

ERC223 token standard

If the receiver is a contract, ERC223 token contract will try to call tokenFallback function on receiver contract. If there is no tokenFallback function on receiver contract transaction will fail.

會造成 false positive 的結果而未被採用。

Istanbul Byzantine Fault Tolerance #650

ERC677

Non-fungible Token Standard #721

ERC721x
- ERC721x — A Smarter Token for the Future of Crypto Collectibles
- GitHub

ERC777

ERC865: Pay transfers in tokens instead of gas, in one transaction

Ability for token holders to pay transfer transactions in tokens instead of gas, in one transaction.

ERC875 for non fungible tokens and simple atomic swaps

ERC: Crypto Item Standard #1155

A standard interface for multiple item/token definitions in a single deployed contract.

Some White Papers

Decentralized Autonomous Organization (DAO)

Testing for Reentrancy attacks in remix

Dapp

ToDo List Ethereum Dapp
- ToDo List Ethereum Dapp Tutorial (Solidity/Javascript)

HD Wallet

一組主私鑰建立許多子私鑰，透過一份seed產生多組子私鑰，轉移錢包時只需要主私鑰。

BIP32 Hierarchical Deterministic Wallets
BIP44 Multi-Account Hierarchy for Deterministic Wallets
- 提供 5 個階層，包括多幣種
- m / purpose' / coin_type' / account' / change / address_index
HD Wallet
【加密貨幣錢包】從 BIP32、BIP39、BIP44 到 Ethereum HD Wallet
So you want to build an Ethereum HD wallet?

Mnemonic code

列出錢包助記詞及產生規則。

Geth

Geth 基礎用法及架設 Muti-Nodes 私有鏈
操作 macOS 的 Mist App 內的 Geth ~/Library/Application\ Support/Mist/binaries/Geth/unpacked/geth attach ~/Library/Ethereum/geth.ipc -> net.peerCount 可以顯示目前連接的 peer 數量
Infura - Your Access to the Ethereum Network
- 除了自己用 geth 架一個以太坊節點，也可以用其他人的節點來測試或遞送交易