DApp创建本地钱包并实现签名转账(BSC,Polygon,ETH) |
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DApp创建本地钱包并实现签名转账(BSC,Polygon,ETH)
文章目录
1. 项目准备2. 钱包相关概念3.随机创建一个钱包4.根据助记词导入钱包5.根据keystore导入钱包6.签名转账
1. 项目准备
安装ether.js
npm install --save ethers
引入ether.js:的三种方法 es3: var ethers = require(‘ethers’); es5/es6 const ethers = require(‘ethers’); javascript/typescript es6 import ethers from ‘ethers’; 2. 钱包相关概念这里默认为你已经了解 地址、密码、私钥、助记词、Keystore 之间的关系,所以不再过多介绍,只列出他们之间的关联: 地址 = 银行卡号 密码 = 银行卡密码 私钥 = 银行卡号+密码 助记词 = 银行卡号+密码 Keystore = 加密私钥 Keystore + 密码 = 私钥 3.随机创建一个钱包使用到的ethers的Wallet类: ethers.Wallet.createRandom()createRandom 返回一个带有随机私钥的新钱包，由加密安全的熵源生成。如果当前环境没有安全的熵源，则会抛出错误。 使用此方法创建的钱包将具有助记词 createNewWallet() { let walletRandom = ethers.Wallet.createRandom() // 钱包助记词对象 let mnemonic = walletRandom.mnemonic //钱包助记词单词 let phrase = mnemonic.phrase //path: "m/44'/60'/0'/0/0", let path = mnemonic.path //钱包地址 let address = walletRandom.address //钱包公钥 let publicKey = walletRandom.publicKey //钱包私钥 let privateKey = walletRandom.privateKey //通过用户设置的密码生成keystore文件 let password = "123456" walletRandom.encrypt(password).then((keystory_string) => { let keystory_json = JSON.parse(keystory_string) //钱包的keystore字符串 this.keystory = keystory_string console.log(keystory_json) }) //可以通过AES对称加密把钱包的助记词加密存储在本地 let encryptPassword = "1234qwer" let encryptedPhrase = encryption(phrase, encryptPassword) console.log('加密后的助记词:', encryptedPhrase) let decryptedPhrase = decryption(encryptedPhrase, encryptPassword) console.log('解密后的助记词:', decryptedPhrase) } import * as CryptoJS from 'crypto-js' //数据对称加密 function encryption(data, password) { let encrypted = CryptoJS.AES.encrypt(data, password); return encrypted.toString() } //数据解密 function decryption(encrypted, password) { let decrypted = CryptoJS.AES.decrypt(encrypted, password); return decrypted.toString(CryptoJS.enc.Utf8); } 4.根据助记词导入钱包 ethers.Wallet.fromMnemonic( mnemonic [ , path , [ wordlist ] ] ) ⇒ Wallet从助记短语中创建实例。 如果没有指定path，则使用以太坊的默认path路径(如m/44’/60’/0’/0/0). 如果不指定wordlist，则使用English Wordlist。 async createWalletByPhrase() { //默认路径 let path = ethers.utils.defaultPath //要导入的钱包助记词 let phrase = 'able fee damage express dilemma visit fine claim similar attract awkward market' let mnemonic = ethers.Wallet.fromMnemonic(phrase) //钱包私钥 let privateKey = mnemonic.privateKey //通过钱包私钥创建钱包实例 let wallet = new ethers.Wallet(privateKey) //钱包公钥 let publicKey = wallet.publicKey //钱包地址 let address = wallet.address //通过用户设置的密码生成keystore文件 let password = "123456" wallet.encrypt(password).then((keystory_string) => { let keystory_json = JSON.parse(keystory_string) let keystory = keystory_string console.log(keystory_json) }) } 5.根据keystore导入钱包 ethers.Wallet.fromEncryptedJson( json , password [ , progress ] ) ⇒ Promisesource从加密的JSON钱包创建一个实例。 如果提供了进度，它将在解密期间被调用，其值介于0到1之间，表示一个完成进度。 createWalletByKeystory() { //要导入的钱包keystore let keystory = '{"address":"df9e902814baba3ddc6b4a1ac9db11bc79eda07f","id":"60db3db5-ef64-400a-b25e-3615a9bdfa24","version":3,"crypto":{"cipher":"aes-128-ctr","cipherparams":{"iv":"f4c7ece791d112dc408537203aa2bb10"},"ciphertext":"acba3333e3d7078e2186ebd561c28bf0e4a8c105e4b1eec40bec20616441cc31","kdf":"scrypt","kdfparams":{"salt":"f1e8acd43868559c1ecda1c9b31489efd12f6c7c9302710b957a3b779dd6ec54","n":131072,"dklen":32,"p":1,"r":8},"mac":"e466473ae761f98b1f26354e27305ce23e41b5d5c8a5674b65675bdfbf848718"},"x-ethers":{"client":"ethers.js","gethFilename":"UTC--2023-03-25T03-36-38.0Z--df9e902814baba3ddc6b4a1ac9db11bc79eda07f","mnemonicCounter":"e4482220566b9a9f9d821c1352d1708f","mnemonicCiphertext":"7357682acae64479641611e17e1c6473","path":"m/44'/60'/0'/0/0","locale":"en","version":"0.1"}}' //改keystore创建时使用的密码 let password = "123456" ethers.Wallet.fromEncryptedJson(keystory, password).then((wallet) => { console.log('wallet实例:', wallet) //钱包地址 let address = wallet.address //钱包公钥 let publicKey = wallet.publicKey //钱包私钥 let privateKey = wallet.privateKey //默认的路径 let path = ethers.utils.defaultPath }) } 6.签名转账 async sendTransaction() { //ETH // let network = 'goerli' // let contractAddress = '' //Polygon // let network = 'maticmum' // let contractAddress = '' //BSC // let network = 'https://bsc-dataseed.binance.org/' let network = 'https://data-seed-prebsc-1-s1.binance.org:8545/' let contractAddress = '' //使用Infura作为RPC使用 //let projectId = '' // let provider = new ethers.providers.InfuraProvider(network, projectId) let provider = new ethers.providers.JsonRpcProvider(network); let privateKey = '0x0fb9146e20a3bd3497b47de967316c8aa7f83818ddc62429a24774f0df1f8065' let wallet = new ethers.Wallet(privateKey, provider) // let balance = await wallet.getBalance('latest') // console.log('余额:', balance) // console.log('余额:', ethers.utils.formatEther(balance)) // console.log(await wallet.getChainId()) // return /** //ETH转账 let tx = { to: '', value: ethers.utils.parseEther('0.001'), chainId: ethers.BigNumber.from('5').toHexString() } let res = await wallet.sendTransaction(tx) console.log(res) */ /** * //使用signers进行ERC20转账 let contract = new ethers.Contract(contractAddress, GBK.abi, wallet) console.log(contract) let balance = await contract.balanceOf(wallet.address) balance = ethers.utils.formatEther(balance) console.log(balance) let res = await contract.transfer('', ethers.utils.parseUnits('1')) console.log(res) */ } |
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