{"id":558462,"date":"2025-07-29T08:37:31","date_gmt":"2025-07-29T06:37:31","guid":{"rendered":"https:\/\/www.capgemini.com\/se-en\/?p=558462&preview=true&preview_id=558462"},"modified":"2025-08-04T08:39:24","modified_gmt":"2025-08-04T06:39:24","slug":"crypto-agility-the-unsung-hero-in-the-quantum-security-race","status":"publish","type":"post","link":"https:\/\/www.capgemini.com\/se-en\/insights\/expert-perspectives\/crypto-agility-the-unsung-hero-in-the-quantum-security-race\/","title":{"rendered":"Crypto-agility: The unsung hero in the quantum security race"},"content":{"rendered":"\n

Crypto-agility: The unsung hero in the quantum security race<\/h1><\/div><\/div><\/div><\/div>
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Marco Pereira<\/h5>
Jul 29, 2025<\/h5><\/div><\/div>
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In the global race to secure digital infrastructure against quantum threats, post-quantum cryptography (PQC) often takes the spotlight \u2013 and rightly so. Quantum computing has the potential to break the cryptographic systems that currently protect our data, communications, and national infrastructure.<\/p>\n\n\n\n

But there\u2019s another capability that deserves equal attention \u2013 crypto-agility. Quietly, but powerfully, it is emerging as the foundational layer upon which a truly quantum-resilient future will be built.<\/p>\n\n\n\n

What is crypto-agility \u2013 and why it matters<\/h4>\n\n\n\n

Just as security by design and, more recently, privacy by design have become essential principles in the development of modern IT solutions, it’s time to embrace a new imperative: crypto-agility by design. In a world where cryptographic algorithms can become obsolete overnight \u2013 due to advances in computing power, quantum threats, or newly discovered vulnerabilities \u2013 crypto-agility is no longer optional.<\/p>\n\n\n\n

Crypto-agility is the ability to swiftly switch between cryptographic algorithms \u2013 whether in response to a new vulnerability or to adopt an emerging standard \u2013 without disrupting operations. It\u2019s not about replacing cryptography once; it\u2019s about building the flexibility to respond again and again as threats evolve, and standards mature.<\/p>\n\n\n\n

This proactive approach ensures long-term resilience and trustworthiness, much like how security and privacy are now embedded from the ground up. As digital ecosystems grow more complex and interconnected, crypto-agility must become a foundational design principle \u2013 not an afterthought.<\/p>\n\n\n\n

Quantum computing isn\u2019t the only threat. The recent vulnerabilities in widely used libraries like OpenSSL are stark reminders of how brittle our current cryptographic landscape can be. Yet, our recent CRI research<\/a> reveals a troubling picture:<\/p>\n\n\n\n