Cisco network secured against quantum threats in under an hour per site

A United States federal agency recently secured its network against evolving quantum threats by deploying full post-quantum cryptography in under an hour per site, a speed previously considered unattainable without extensive infrastructure changes. The agency integrated Phio TX-EM cryptographic management software with existing Cisco hardware, achieving zero downtime during algorithm updates as part of an ongoing Cisco SD-WAN upgrade, the company says. The company reports demonstrating a phased rollout that eases compliance with Executive Order 14412. This approach highlights a path toward adaptable, audit-ready quantum security without costly hardware replacements.

Phio TX-EM Enables Rapid Post-Quantum Cryptography on Cisco Networks

The agency prioritized a phased rollout, strategically incorporating the security upgrade alongside an ongoing Cisco SD-WAN upgrade to minimize disruption and maximize resource use. This approach to network security allowed for zero downtime during algorithm changes, a critical feature for maintaining operational continuity while adapting to evolving cryptographic standards. Phio TX-EM operates as a containerized software platform within the Cisco router’s device boundary, delivering strong symmetric keys independently from the data plane.

The agency’s decision to deploy post-quantum cryptography on existing infrastructure also streamlined compliance with Executive Order 14412, providing an expedited path to audit-ready crypto-agility. “Deploying on existing hardware eased the burden of compliance,” the agency reports, highlighting the benefits of avoiding costly and time-consuming hardware replacements.

KETS’ chip-based Quantum Key Distribution technology was successfully integrated with Cisco IOS XR-based routing infrastructure, feeding quantum keys into MACsec encryption. The agency’s successful deployment highlights the potential for adaptable, audit-ready quantum security without necessitating wholesale infrastructure overhauls, a significant advancement for organizations facing the looming threat of quantum decryption.

Site-by-Site Deployment with Zero Downtime During SD-WAN Upgrades

This approach bypassed the need for extensive hardware overhauls, a significant departure from previously anticipated timelines for quantum readiness. The agency maintained zero downtime during algorithm changes, demonstrating a level of crypto-agility essential for adapting to evolving quantum threats. This uninterrupted service was achieved because Phio TX-EM delivers strong symmetric keys out of band, separate from the data plane, allowing for smooth cryptographic updates. Phio TX-EM is both FIPS 140-3 and FIPS 203 validated, adding another layer of assurance to the agency’s network security.

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Rusty Flint

Rusty is a quantum science nerd. He's been into academic science all his life, but spent his formative years doing less academic things. Now he turns his attention to write about his passion, the quantum realm. He loves all things Quantum Physics especially. Rusty likes the more esoteric side of Quantum Computing and the Quantum world. Everything from Quantum Entanglement to Quantum Physics. Rusty thinks that we are in the 1950s quantum equivalent of the classical computing world. While other quantum journalists focus on IBM's latest chip or which startup just raised $50 million, Rusty's over here writing 3,000-word deep dives on whether quantum entanglement might explain why you sometimes think about someone right before they text you. (Spoiler: it doesn't, but the exploration is fascinating)

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