V4 keystore single

本例演示如何加密和解密 keystore V4 single。

從 @kaiachain/ethers-ext/v6 軟件包中導入錢包類。

定義加密密鑰庫 ** version 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 keystore 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 { Wallet } = require("@kaiachain/ethers-ext/v6");

// Klaytn V4 with one key. kcn account new --lightkdf

const 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 password = "password";

const newPassword = "newPassword";

async function main() {

const account = Wallet.fromEncryptedJsonSync(encryptedKey, password);

console.log("decrypted (address, privateKey)");

console.log(account.klaytnAddr, ", ", account.privateKey);

const v3encryptedKey = await account.encrypt(newPassword);

const newAccount = Wallet.fromEncryptedJsonSync(v3encryptedKey, newPassword);

console.log("\ndecrypted (address, privateKey) with new password");

console.log(newAccount.address, ", ", newAccount.privateKey);

}

main();

output

❯ node keystoreV4-single.js

decrypted (address, privateKey)

0xec5eaa07b4d3cbafe7bf437a1ea9a898209f617c , 0x4062512193ef1dab8ccf3e3d7a4862e3c740bdf11d852954ed48bc73643e354f

decrypted (address, privateKey) with new password

0xEc5eAa07b4d3CbAfe7bf437a1Ea9A898209F617c , 0x4062512193ef1dab8ccf3e3d7a4862e3c740bdf11d852954ed48bc73643e354f