Master Authentication & Security

Master Authentication & Security

Build secure, production-ready applications. Learn modern authentication methods, API security, OAuth 2.0, JWT, password hashing, and defense against common vulnerabilities.

Secure Auth Flows

Threat Prevention

Production Best Practices

Secure Password Hashing with Bcrypt

const bcrypt = require('bcrypt');
const saltRounds = 12;

// Hash a password
const hashPassword = async (plainPassword) => {
    const hash = await bcrypt.hash(plainPassword, saltRounds);
    return hash;
};

// Verify a password
const verifyPassword = async (plainPassword, hashedPassword) => {
    const match = await bcrypt.compare(plainPassword, hashedPassword);
    return match;
};

// Example usage
const main = async () => {
    const userPassword = 'MySecurePass123!';
    const hash = await hashPassword(userPassword);
    console.log('Secure Hash:', hash);
};
main();

Authentication & Security Fundamentals

Master the core principles and terminology of application security

Introduction to Auth & Security

  • What is authentication?
  • Authentication vs authorization
  • CIA Triad (Confidentiality, Integrity, Availability)
  • Why security matters in modern applications

Types of Authentication

  • Basic & Token-based Authentication
  • Session-based Authentication
  • OAuth 2.0 authentication flow
  • Passwordless & Multi-Factor (MFA)

Password Security

  • Understanding password hashing
  • Algorithms: bcrypt, scrypt, Argon2
  • Salt & pepper concepts
  • Secure storage best practices

Key Security Technologies

Deep dive into the protocols and standards that keep applications secure

Session Management

  • How sessions work
  • Cookies & secure flags (HTTPOnly, SameSite)
  • Session expiration & renewal
  • Preventing session hijacking

JSON Web Tokens (JWT)

  • JWT structure (Header, Payload, Signature)
  • Access vs refresh tokens
  • Storing JWT securely
  • Common vulnerabilities & prevention

OAuth 2.0 & OpenID Connect

  • OAuth basics & authorization code flow
  • PKCE flow for enhanced security
  • Social login (Google, Facebook, GitHub)
  • OpenID Connect identity layer

Defense & Implementation

Learn to secure your APIs, defend against attacks, and implement robust access controls

API & Web Security Essentials

  • Securing REST APIs & rate limiting
  • API Keys vs Bearer Tokens
  • HTTPS, SSL/TLS & HSTS headers
  • CORS configuration best practices
  • Content Security Policy (CSP)

Common Vulnerabilities & Prevention

  • SQL Injection & XSS
  • CSRF & Clickjacking
  • Man-in-the-middle (MITM) attacks
  • Brute-force attack mitigation

Security Tools & Frameworks

OWASP Top 10, vulnerability scanners, and security libraries for Express.js, Spring Security, Django, and Laravel.

Role-Based Access Control

Implementing Admin/User roles, ACL, RBAC, and fine-grained permissions for enterprise applications.

Secure Deployment & DevOps

Secrets management (Vault, AWS), environment variables, monitoring logs, and DevSecOps practices.

Platforms & Identity Services

Utilize managed services and implement security across different environments

AWS Cognito

User identity & access control

Firebase Auth

Mobile & web authentication

IDaaS Solutions

Identity-as-a-Service platforms

Logging, Auditing & Best Practices

Track login attempts, set up alerts, maintain compliance logs, monitor failures, design secure flows, and learn from real-world case studies and breaches.

Ready to Master Application Security?

Join developers building secure, trustworthy applications with our comprehensive Authentication & Security curriculum.

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