Ethereum Keystore

Utility to extract private key from Ethereum KeyStore file

import EthereumKeyStore from 'eth2-keystore-js';

fs.readFile(filePath, 'utf8', async (err: ErrnoException, data: string) => {
    if (err) {
        reject(err);
    } else {
        const keyStore = new EthereumKeyStore(JSON.parse(data));
        
        const privateKey = await keyStore.getPrivateKey('<keystorePassword>');
    }
});

Dependencies

• scrypt-js - The scrypt password-base key derivation function
• ethereumjs-wallet - A lightweight wallet implementation
• typescript - TypeScript is a language for application-scale JavaScript