Core engineering and protocols for Privilege Domain Isolation.
Even in modern operating systems, high-privilege kernel exploits (e.g., in monolithic Linux kernels) allow attackers to inspect all physical memory. EmbeddedWall leverages hardware privilege domains (ARM TrustZone Secure World or RISC-V Physical Memory Protection) to execute cryptographic operations in a segregated execution realm completely invisible to the host OS.
To protect against physical inter-chip probing between the SoC and external DDR memory, EmbeddedWall integrates real-time hardware memory scrambling. Data written to memory is encrypted on-the-fly with an ephemeral AES-XTS key generated randomly on boot, ensuring that physical RAM dumps yield only high-entropy pseudorandom noise.