A post-quantum migration starts with a surprisingly ordinary question: where does your organization use public-key cryptography? The answer spans more than website certificates. It includes VPNs, software signatures, device identities, key management, and dependencies hidden inside purchased services. Finding those connections now is useful even before every supplier has a production migration path.<\/p>\n
This guide is for application owners, infrastructure teams, and security leads who need a defensible starting point. You will learn what the NIST standards cover, how to prioritize one pilot, and what evidence to request from vendors. No quantum computer or custom cryptographic implementation is required.<\/p>\n
NIST published its first three post-quantum cryptography standards on August 13, 2024. These are established standards, not speculative algorithm proposals. Their availability does not mean every protocol, hardware device, or certificate ecosystem has completed its transition.<\/p>\n
The distinction matters operationally. Updating a connection’s key establishment does not automatically update its certificate signatures or your software release signing. Track confidentiality and authentication separately. Follow maintained product documentation and standard errata rather than translating mathematical specifications into application code.<\/p>\n
A future attacker could retain encrypted traffic for later analysis. For information that must remain confidential for many years, waiting until a cryptographically relevant quantum computer exists may leave historical exposures unresolved. This is a planning risk, not a prediction of a particular arrival date.<\/p>\n
Consider a document portal holding long-lived research agreements. Its public endpoint is only one boundary. A load balancer may terminate TLS, another connection may reach the application, and an export service may send documents elsewhere. A successful browser handshake proves little about those remaining paths.<\/p>\n
Do not put private keys or sensitive certificate-management credentials into the inventory. Record identifiers, owners, versions, and references to controlled systems.<\/p>\n
A compact inventory entry might look like this. It is an assessment record, not a cryptographic configuration:<\/p>\n
Service: research document portal\nBoundary: external client to gateway\nFunction: key establishment and peer authentication\nImplementation: record installed product and version\nData lifetime: determined by information owner\nPQC support: awaiting supplier evidence\nNext action: stage supported client compatibility tests<\/code><\/pre>\n