Module 3: Cryptography & Security Mechanisms

1. Cryptographic Fundamentals
   • Symmetric & asymmetric encryption
   • Hashing (MD5, SHA, bcrypt)
   • Public Key Infrastructure (PKI), digital certificates

2. Authentication & Access Control

• Passwords, biometrics, MFA
• Role-based access control (RBAC)
• Identity & Access Management (IAM)

3. Data Security

• Secure communication (SSL/TLS, IPSec)
• Email security (PGP, DKIM, SPF)

Data loss prevention (DLP)