V4 密钥存储单
本例演示如何加密和解密 keystore V4 单。
从 @kaiachain/web3js-ext 包中导入 Web3 类。
设置提供程序,并使用该提供程序定义一个web3实例。
定义加密密钥库 版本 4
指定密钥存储的当前密码和新密码。
使用当前密码加载密钥库
解密后,您可以访问公钥和私钥。
您可以使用解密密钥和新密码生成新的密钥存储。 请注意,新的加密密钥将是密钥存储 v3。
检查新的密钥库 public 和 private 密钥,它将与原始密钥库不同,因为密钥库 v3 ** 不支持 klaytn 账户系统。
keystoreV4-single.js
const { Web3 } = require("@kaiachain/web3js-ext");const provider = new Web3.providers.HttpProvider("https://public-en-kairos.node.kaia.io");const web3 = new Web3(provider);// Klaytn V4 with one key. kcn account new --lightkdfconst encryptedKey = `{ "address":"ec5eaa07b4d3cbafe7bf437a1ea9a898209f617c", "keyring":[ [ { "cipher":"aes-128-ctr", "ciphertext":"0a5aa3749b9e83c2a4238445aeb66f59355c0363a54c163e34e454f76e061e47", "cipherparams":{"iv":"2a0b2e02a61e0f721bd800ea6e23a588"}, "kdf":"scrypt", "kdfparams":{"dklen":32,"n":4096,"p":6,"r":8,"salt":"538ead57745bcd946b05fe294de08256628d9a0a393fd29ced933ba5fc045b07"}, "mac":"30b5488bc97165bc7ecac8ff8dfec65a75a8ad206450aecff0ac2dfea6f79b08" } ] ], "id":"362c0766-f5e3-4b4d-af22-7e89d5fb613a", "version":4 }`;// const address = "0xEc5eAa07b4d3CbAfe7bf437a1Ea9A898209F617c";// const key = "0x4062512193ef1dab8ccf3e3d7a4862e3c740bdf11d852954ed48bc73643e354f";const password = "password";const newPassword = "newPassword";async function main() { const account = await web3.eth.accounts.decrypt(encryptedKey, password); console.log("\ndecrypted address"); console.log(account.address); console.log("decrypted privateKey"); console.log(account.privateKey); const encryptedKey2 = await account.encrypt(newPassword); const account2 = await web3.eth.accounts.decrypt(encryptedKey2, newPassword); console.log("\ndecrypted address with new password"); console.log(account2.address); console.log("decrypted privateKey with new password"); console.log(account2.privateKey);}main();
output
❯ node keystoreV4-single.jsdecrypted address0xEc5eAa07b4d3CbAfe7bf437a1Ea9A898209F617cdecrypted privateKey0x4062512193ef1dab8ccf3e3d7a4862e3c740bdf11d852954ed48bc73643e354fdecrypted address with new password0xEc5eAa07b4d3CbAfe7bf437a1Ea9A898209F617cdecrypted privateKey with new password0x4062512193ef1dab8ccf3e3d7a4862e3c740bdf11d852954ed48bc73643e354f