keygentoolshed/keyGen/jwkGenerator.js

Key generation utilities for cryptographic operations. QUANTUM ENCRYPTION FOLDER UPDATE!!! See its folder for all <3

import { generateKeyPair, exportJWK } from 'jose';
import { program } from 'commander';
import fs from 'fs';

async function generateJwk(keyType, keySize, keyId) {
    let keyPair;

    if (keyType === 'RSA') {
        keyPair = await generateKeyPair('RS256', { modulusLength: keySize });
    } else if (keyType === 'EC') {
        keyPair = await generateKeyPair('ES256', { crv: keySize });
    } else {
        throw new Error('Unsupported key type. Use RSA or EC.');
    }

    const jwk = await exportJWK(keyPair.publicKey);
    jwk.kid = keyId; 
    jwk.use = 'sig';

    return jwk;
}

program
    .version('1.0.0')
    .description('Generate a JSON Web Key (JWK)')
    .requiredOption('-t, --type <type>', 'Key type (RSA or EC)')
    .requiredOption('-s, --size <size>', 'Key size (e.g., 2048 for RSA, P-256 for EC)')
    .requiredOption('-i, --id <id>', 'Key ID')
    .action(async (options) => {
        try {
            const jwk = await generateJwk(options.type, options.size, options.id);
            fs.writeFileSync('./jwk.json', JSON.stringify(jwk, null, 4));
            console.log('JWK generated and saved to jwk.json');
        } catch (error) {
            console.error('Error generating JWK:', error.message);
        }
    });

program.parse(process.argv);