操作各種比特幣錢包：BitcoinJS

BitcoinJS 是一個純 JavaScript 庫，支持 Node.js 和瀏覽器，用于操作各種比特幣錢包。超過150萬錢包用戶在生產中使用它。

特性

• Clean - 純JavaScript，代碼簡潔，易于閱讀。

• Tested - 覆蓋率>95％，第三方集成測試。

• Careful - Two person approval process for small, focused pull requests.

• 兼容 - 可工作在Node.js和所有現代瀏覽器。

• 強大 - 支持高級特性，比如 multi-sig, HD Wallets.

• 安全 - 強隨機數生成, PGP簽名的版本，值得信賴的開發者。

• Principled - No support for browsers with crap RNG (IE < 11)

• Standardized - Node community coding style, Browserify, Node's stdlib and Buffers.

• Fast - Optimized code, uses typed arrays instead of byte arrays for performance.

• Experiment-friendly - Bitcoin Mainnet and Testnet support.

• Altcoin-ready - Capable of working with bitcoin-derived currencies (such as Dogecoin).

示例代碼：

//生成比特幣地址
key = Bitcoin.ECKey.makeRandom()

// Print your private key (in WIF format)
console.log(key.toWIF())
// => 8c112cf628362ecf4d482f68af2dbb50c8a2cb90d226215de925417aa9336a48

// Print your public key (toString defaults to a Bitcoin address)
console.log(key.pub.getAddress().toString())
// => 14bZ7YWde4KdRb5YN7GYkToz3EHVCvRxkF

//開始交易
tx = new Bitcoin.Transaction()

// Add the input (who is paying) of the form [previous transaction hash, index of the output to use]
tx.addInput("aa94ab02c182214f090e99a0d57021caffd0f195a81c24602b1028b130b63e31", 0)

// Add the output (who to pay to) of the form [payee's address, amount in satoshis]
tx.addOutput("1Gokm82v6DmtwKEB8AiVhm82hyFSsEvBDK", 15000)

// Initialize a private key using WIF
key = Bitcoin.ECKey.fromWIF("L1uyy5qTuGrVXrmrsvHWHgVzW9kKdrp27wBC7Vs6nZDTF2BRUVwy")

// Sign the first input with the new key
tx.sign(0, key)

// Print transaction serialized as hex
console.log(tx.serializeHex())
// => 0100000001313eb630b128102b60241ca895f1d0ffca21 ...

// You could now push the transaction onto the Bitcoin network manually (see https://blockchain.info/pushtx)

項目主頁：http://www.baiduhome.net/lib/view/home/1406706664296