V4 密鑰存儲單
本例演示如何加密和解密 keystore V4 單。
從 @kaiachain/web3js-ext 包中導入 Web3 類。
設置提供程序,並使用該提供程序定義一個web3實例。
定義加密密鑰庫 版本 4
指定密鑰存儲的當前密碼和新密碼。
使用當前密碼加載密鑰庫
解密後,您可以訪問公鑰和私鑰。
您可以使用解密密鑰和新密碼生成新的密鑰存儲。 請注意,新的加密密鑰將是密鑰存儲 v3。
檢查新的密鑰庫 public 和 private 密鑰,它將與原始密鑰庫不同,因為密鑰庫 v3 ** 不支持 klaytn 賬戶系統。
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