besu-network-manager/dist/KeyGenerator.js

TypeScript library for managing Hyperledger Besu networks with Clique consensus using Docker

import elliptic from 'elliptic';
import keccak from 'keccak';
export class KeyGenerator {
    ec;
    constructor() {
        this.ec = new elliptic.ec('secp256k1');
    }
    generateKeyPair(ip, port) {
        const keyPair = this.ec.genKeyPair();
        const privateKey = keyPair.getPrivate('hex');
        const publicKey = keyPair.getPublic(false, 'hex').slice(2);
        const address = this.publicKeyToAddress(publicKey);
        const enode = `enode://${publicKey}@${ip}:${port}`;
        return {
            privateKey: this.addHexPrefix(privateKey),
            publicKey: this.addHexPrefix(publicKey),
            address: this.addHexPrefix(address),
            enode: enode
        };
    }
    publicKeyToAddress(publicKey) {
        const cleanPublicKey = publicKey.startsWith('04') ? publicKey.slice(2) : publicKey;
        const publicKeyBytes = Buffer.from(cleanPublicKey, 'hex');
        const hash = keccak('keccak256').update(publicKeyBytes).digest();
        return hash.slice(-20).toString('hex');
    }
    addHexPrefix(hex) {
        return hex.startsWith('0x') ? hex : `0x${hex}`;
    }
    removeHexPrefix(hex) {
        return hex.startsWith('0x') ? hex.slice(2) : hex;
    }
    isValidAddress(address) {
        const cleanAddress = this.removeHexPrefix(address);
        return /^[0-9a-fA-F]{40}$/.test(cleanAddress);
    }
}
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