Secure32 🆓

You can use this as a template for documentation, a blog post, or an internal memo. 1. Introduction Secure32 refers to a lightweight, hardware-assisted security framework designed specifically for 32‑bit embedded systems, legacy industrial controllers, and IoT edge devices. While modern 64‑bit processors dominate general‑purpose computing, billions of 32‑bit ARM Cortex‑A/R/M, MIPS, and x86 (e.g., Intel Quark, AMD Geode) cores remain in active deployment. Secure32 addresses their unique constraints: limited memory, lack of a memory management unit (MMU) in some variants, and the absence of hardware virtualization extensions. 2. Core Components Secure32 is built on four pillars:

// Verify a firmware update image before committing bool secure32_validate_update(const uint8_t *image, uint32_t len) return (secure32_sha256_verify(image, len, &stored_hash) == SECURE32_OK); secure32

#include <secure32.h> // Called from reset vector before any application code void secure32_init(void) // 1. Lock flash configuration registers secure32_lock_flash(); You can use this as a template for