BTC 钱包开发

账户生成

• 公钥私钥助记词

const bip39 = require("bip39");
const bitcoin = require("bitcoinjs-lib");
const ecc = require("tiny-secp256k1");
const { BIP32Factory } = require("bip32");

// 生成助记词
const mnemonic = bip39.generateMnemonic();
console.log("生成的助记词:", mnemonic);

// 使用助记词生成种子
const seed = bip39.mnemonicToSeedSync(mnemonic);
console.log("种子:", seed);

// 检查助记词的有效性
const isValid = bip39.validateMnemonic(mnemonic);
console.log("助记词是否有效:", isValid);

// 创建 bip32 实例
const bip32 = BIP32Factory(ecc);

// 使用种子生成 BIP32 根私钥
const root = bip32.fromSeed(seed);

console.log("助记词:", mnemonic);
console.log("根私钥 (WIF):", root.toWIF());
console.log("根公钥:", root.publicKey.toString("hex"));

// 派生子密钥
const child = root.derivePath("m/44'/0'/0'/0/0");
console.log("子私钥 (WIF):", child.toWIF());
console.log("子公钥:", child.publicKey.toString("hex"));

// 使用公钥生成 P2PKH 地址
const { address } = bitcoin.payments.p2pkh({
  pubkey: Buffer.from(child.publicKey, "hex"),
});

console.log("比特币地址:", address);

交易信息

• 获取资金

const axios = require("axios");

const btcAddress = "34xp4vRoCGJym3xR7yCVPFHoCNxv4Twseo"; // 替换为你要查询的比特币地址

axios
  .get(`https://blockchain.info/rawaddr/${btcAddress}`)
  .then((response) => {
    const finalBalance = response.data.final_balance; // 余额是以 satoshis 为单位
    console.log(
      `地址: ${btcAddress} 的余额为: ${finalBalance / 100000000} BTC`
    );
  })
  .catch((error) => {
    console.error("获取余额时发生错误:", error);
  });

• 发送交易

账户恢复

• 私钥恢复

• 助记词恢复

const bip39 = require("bip39");
const { BIP32Factory } = require("bip32");
const ecc = require("tiny-secp256k1");
const bitcoin = require("bitcoinjs-lib");

// 创建 bip32 实例
const bip32 = BIP32Factory(ecc);

// 假设你有一个助记词
const mnemonic =
  "fence core rapid bid hour denial brass flavor praise solve under mask";

// 通过助记词生成种子
const seed = bip39.mnemonicToSeedSync(mnemonic);

// 使用种子生成 BIP32 根私钥
const root = bip32.fromSeed(seed);

// 获取根私钥（WIF 格式）
const rootPrivateKeyWIF = root.toWIF();
console.log("根私钥 (WIF):", rootPrivateKeyWIF);

// 获取根公钥
const rootPublicKey = root.publicKey.toString("hex");
console.log("根公钥:", rootPublicKey);

// 生成根公钥对应的比特币地址
const { address } = bitcoin.payments.p2pkh({ pubkey: root.publicKey });
console.log("比特币地址:", address);

const bip39 = require("bip39");
const { BIP32Factory } = require("bip32");
const ecc = require("tiny-secp256k1");
const bitcoin = require("bitcoinjs-lib");

// 创建 bip32 实例
const bip32 = BIP32Factory(ecc);

// 假设你有一个助记词
const mnemonic =
  "fence core rapid bid hour denial brass flavor praise solve under mask";

// 通过助记词生成种子
const seed = bip39.mnemonicToSeedSync(mnemonic);

// 使用种子生成 BIP32 根私钥
const root = bip32.fromSeed(seed);

// 派生子密钥（示例路径 "m/44'/0'/0'/0/0"）
const child = root.derivePath("m/44'/0'/0'/0/0");

// 获取私钥（WIF 格式）
const privateKeyWIF = child.toWIF();
console.log("私钥 (WIF):", privateKeyWIF);

// 获取公钥
const publicKey = child.publicKey.toString("hex");
console.log("公钥:", publicKey);

// 生成比特币地址
const { address } = bitcoin.payments.p2pkh({ pubkey: child.publicKey });
console.log("比特币地址:", address);