Quantum-safe cryptography: what it means for identity and key management

TL;DR: Quantum computing is turning current public-key cryptography into a near-term governance problem because RSA and ECC protections can be undermined by harvest-now, decrypt-later tactics, while migration to post-quantum cryptography requires inventory, testing, and phased change, according to Fortanix.

Editorial analysis by NHI Mgmt Group, based on content published by Fortanix: “Why CISOs Should Prioritize Quantum-Safe Cryptography Today”.

Key questions

Q: How should teams prioritise data for post-quantum cryptography migration?

A: Prioritise data by confidentiality lifetime, replaceability, and exposure spread.

Q: Why does quantum risk matter before quantum computers can actually break RSA?

A: Quantum risk matters early because attackers can record encrypted traffic today and decrypt it later once enough quantum capability exists.

Q: When should organisations prioritise post-quantum migration work over waiting for final standards?

A: Organisations should begin planning now, even before every standard detail is final, because migration across certificates, validation software, and application ecosystems can take years.

Practitioner guidance

• Build a cryptographic inventory across all trust dependencies Catalogue where RSA, ECC, certificates, signing services, and key management live across applications, data stores, and infrastructure.
• Test hybrid post-quantum modes in controlled environments Run interoperability and performance tests before making any broad change to production trust paths.
• Prioritise long-lived data and signatures first Move the most sensitive and longest-retained data ahead of short-lived operational traffic.

Bottom line: Quantum-safe planning is about preserving trust in data, signatures, and certificates that must remain valid beyond the life of today’s algorithms.

Explore further

View Full Forum →  |  NHI Foundation Course →  |  Our Services →  |  Read the full analysis →