Advancing Secure Processing with FUJITSU-MONAKA and Arm Confidential Compute Architecture

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Presented at Open Confidential Computing Conference 2025 by

In an era where sensitive data is increasingly processed in distributed environments, the need to ensure its protection during processing is critical. The growing reliance on Arm CPUs, known for their energy efficiency and versatility, further underscores the demand for robust and scalable security frameworks. Addressing this challenge, Arm Confidential Compute Architecture (Arm CCA) represents a transformative approach, leveraging hardware-supported encryption and dynamic memory isolation to secure data in use. This talk explores the evolving landscape of secure processing with a focus on Arm CCA, its security model, practical tools, and real-world applications in domains such as healthcare, finance, and government. The session explores the Arm CCA's Realm environment, which enhances traditional systems like TrustZone by offering advanced secure memory isolation. Using tools like QEMU Virt and FVP, we will demonstrate how developers can prepare for upcoming Armv9-A architecture chips and integrate these capabilities into modern workloads. The session also highlights safeguarding applications in Realm VMs against malicious hypervisors and ensuring system integrity through remote attestation. By examining a real-world threat scenario, we’ll showcase the potential of confidential computing in mitigating risks and securing workloads in privacy-sensitive contexts. FUJITSU-MONAKA, Fujitsu’s next-generation 2nm low-power Arm processor, incorporates Arm CCA to redefine secure processing for future hardware systems. Join us to gain technical insights on leveraging Arm CCA to meet the growing need for secure, energy-efficient computing. This presentation is based on results obtained from a project, JPNP21029, subsidised by the New Energy and Industrial Technology Development Organisation (NEDO).