const crypto = require('crypto');

// Get all supported elliptic curves
const curves = crypto.getCurves();

// Filter to show only common ECDH curves
const commonCurves = curves.filter(curve => 
  curve.startsWith('prime') || 
  curve.startsWith('secp') ||
  curve.startsWith('curve') ||
  curve.includes('25519')
);

console.log('Common ECDH curves supported in this Node.js version:');
console.log('='.repeat(50));
commonCurves.forEach((curve, index) => {
  console.log(`${index + 1}. ${curve}`);
});

// Show total count
console.log('\nTotal common ECDH curves:', commonCurves.length);
console.log('Total all curves:', curves.length);