Migration Planning / Hybrid Transition Planner

What this is for: Architect-facing decision tree from CSWP.39 §3.2.4 - pick traditional+PQC, PQC+PQC, pure PQC, or crypto-gateway pathway with concrete algorithm pairings.

What a good answer looks like: A stated exit from hybrid, with a trigger. Hybrid without an end date is permanent, and permanent hybrid is twice the maintenance forever.

Worked example: Leave the defaults — TLS 1.3 on X25519, key exchange only, data lifetime 5 - 15 years, deadline 2030: the preview recommends Hybrid (Traditional + PQC) with X25519MLKEM768, a hybrid target of Q4 2028 and a pure-PQC sunset of Q4 2030.

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For your role

Security Architect
Inventory the protocol, the algorithm in use, the data lifetime and the deployment maturity, set the interoperability and compliance constraints, then edit the plan narrative: the tool's decision tree from CSWP.39 §3.2.4 picks traditional+PQC, PQC+PQC, pure PQC or a gateway, and a hybrid without an exit trigger is flagged as permanent.

Hybrid Algorithm Transition Planner

Architect-facing decision tree from NIST CSWP 39 Section 3.2.4 - Hybrid Cryptographic Algorithms. Recommends a transition pathway and emits an editable migration plan.

Traditional

Today: RSA, ECDSA, ECDH - quantum-vulnerable under Shor.

Hybrid (Traditional + PQC)

Transition step: classical and PQC together while PQC confidence builds.

Pure PQC

End-state: FIPS 203 / 204 / 205 standalone, with hybrid-PQC+PQC as a sibling option.

Step 1 — Inventory

Which protocol or asset is this transition plan for?

Step 2 — Constraints

What limits your choices?

Step 3 — Plan narrative (editable)

Edit the narrative, risks, and validation steps that will appear in the exported plan.

Try it

Why does the tool flag a hybrid plan without an exit trigger?

Next step

Next in Migration Planning: MTI Negotiator

MTI Negotiator is the next Migration Planning tool in the Command Center.