Secure Authentication Patterns

Security should never be an afterthought.

Always hash passwords with a strong algorithm:

import { hash, verify } from '@node-rs/argon2';

const hashedPassword = await hash(password);
const isValid = await verify(hashedPassword, password);

Session Management

• Use secure, HTTP-only cookies
• Implement session expiration
• Rotate session tokens regularly

Token Best Practices

1. Keep tokens short-lived
2. Use refresh token rotation
3. Store securely on client

Rate Limiting

Protect against brute force attacks with rate limiting.