All-in-One Security Locking Operating System

Summary

This course project proposes upgrading the access-control platform of the hypothetical company Really Cool Locks LLC from a single-core card-reader-and-lock system to a multicore operating environment. It outlines hardware, firmware, and software migration steps and combines preemptive priority scheduling with multilevel-feedback queues to separate emergency operations from routine workloads.

The proposed four-core design assigns responsibilities for emergency response, normal inputs, authentication and sensor processing, and logging and networking. It considers event-driven and shared-memory concurrency, then identifies risks including priority inversion, shared-memory corruption, privilege escalation, event flooding, insecure updates, and log protection. The document also considers micro-VMs, edge computing, and trusted execution environments as future enhancements.

The paper presents a proposed architecture and mitigation strategy. It does not report an implemented system or measured performance results.

Document context

The title page identifies:

• Author: Nathan Bellew
• Institution: Colorado Technical University
• Course: CS630: Modern Operating Systems
• Displayed date: December 19th, 2025

“Really Cool Locks LLC” is identified in the document as a hypothetical company, not an employer or publication affiliation.

Topics covered

• benefits and migration considerations for multicore processing;
• preemptive priority and multilevel-feedback queue scheduling;
• event-driven and shared-memory concurrency;
• operating-system security risks and proposed mitigations;
• micro-VMs, edge computing, and trusted execution environments.

The original PDF is embedded below without converting or rewriting its full text.