Session 9: Secure Kernel 

• Configuring Security Features in the Kernel
• Flattened Image Tree (FIT) Kernel Image

Session 10: Securing the Root Filesystem 

• Root Filesystem Hardening
• Read-Only RootFS for Security
• Encrypting Images

Session 11: Data Encryption Methods 

• Full Disk Encryption (LUKS, TrueCrypt, VeraCrypt)
• File-Based Encryption (FBE)
• Pros & Cons of Each Encryption Method

Session 12: Hands-on Lab – Implementing Various Encryption Techniques