이 페이지는 영어로 된 기계 번역을 사용하므로 오류나 불명확한 언어가 포함될 수 있습니다. 가장 정확한 정보는 영어 원문을 참조하시기 바랍니다. 잦은 업데이트로 인해 일부 콘텐츠는 원래 영어로 되어 있을 수 있습니다. Crowdin에서 이 페이지의 번역을 개선하는 데 동참하여 도움을 주세요. (Crowdin translation page, Contributing guide)

Public Account Key

AccountKeyPublic is used for accounts having one public key. If an account has an AccountKeyPublic object, the transaction validation process is done like below:

Import the @kaiachain/web3js-ext packages to add kaia features on web3

Define sender's address and private key

Set up the provider with the specified kairos testnet URL. A provider in web3js is a read-only abstraction to access the blockchain data.

Also, you can change the provider URL from kairos to quicknode

Define a web3 instance using the provider

Create a sender's wallet with the private key and provider

Define a message to be signed and recovered

Sign the message with sender's wallet

Recover the address from signed message using web3.eth.accounts.recover

Recover the address from signed message using web3.klay.recoverFromMessage

SignMsgWithPubkeyExample.js

const { Web3 } = require("@kaiachain/web3js-ext");

// Using senderPriv == senderNewPriv to execute this example repeatedly.

// But you might want to register a different private key.

const senderAddr = "0xfb60ded0ae96fe04eed6450aead860aa9d57128e";

const senderPriv = "0x0e4ca6d38096ad99324de0dde108587e5d7c600165ae4cd6c2462c597458c2b8";

const provider = new Web3.providers.HttpProvider("https://public-en-kairos.node.kaia.io");

const web3 = new Web3(provider);

const senderAccount = web3.eth.accounts.privateKeyToAccount(senderPriv);

async function main() {

const msg = "hello";

const msghex = Web3.utils.utf8ToHex(msg);

const signResult = senderAccount.sign(msg);

console.log({ senderAddr, msg, msghex, sig: signResult.signature });

const { v, r, s } = signResult;

const addr1 = web3.eth.accounts.recover(msg, v, r, s);

console.log("recoveredAddr lib", addr1, addr1.toLowerCase() === senderAccount.address.toLowerCase());

const sig = signResult.signature;

const addr2 = await web3.klay.recoverFromMessage(senderAddr, msghex, sig, "latest");

console.log("recoveredAddr rpc", addr2, addr2.toLowerCase() === senderAccount.address.toLowerCase());

}

main().catch(console.error);

output

❯ js SignMsgWithPubkeyExample.js

{

senderAddr: '0xe15cd70a41dfb05e7214004d7d054801b2a2f06b',

msg: 'hello',

msghex: '0x68656c6c6f',

sig: '0xed55b92b3db953c4b4d928c99f93275d2590fe2ec95f2d8c069068d86d43ce0c0d1206f297351c6a0dfaba9c24d1a2ac293ac8f8a73d16c2b0c39ce90bc36ab71b'

}

recoveredAddr lib 0xA2a8854b1802D8Cd5De631E690817c253d6a9153 true

recoveredAddr rpc 0xa2a8854b1802d8cd5de631e690817c253d6a9153 true