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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