Protecting Mission-Critical Data Beyond The SoC: Why Inline Memory Encryption Needs Integrity

By Vincent van der Leest and Ajay Kapoor Security architects devote considerable attention to trusted processing, secure boot, and protected communications. Yet sensitive instructions and data often leave the system-on-chip (SoC) whenever they are written to external (off-chip) memory. That interface can expose mission-critical data like cryptographic material, sensor feeds, executable code, and intermediate processing results to physical probing or modification. For aerospace and government pla