Coldproof Migration Model
From cryptographic change to a budget you can defend.
Follow the evidence from measurement, through your estate, into a multi-year financial decision.
Coldproof Migration Model
Measured cryptography becomes a migration budget security and finance can use.
See how the model worksColdproof / Financial model / v1.4Post-Quantum Migration Workbook
Base case / USD M7-year undiscounted$18.4M
NPV of migration cost$15.8M
One-time migration spend$8.1M
Recurring infra delta$1.47M/yr
Peak annual spend2029 / $4.2M
Parallel operation18 months
1Migration spend scheduleAnnual cash flow / USD millions
Cost category2027202820292030203120322033Total
Discovery / inventory.45.35.20————1.00
PKI transition.10.40.70.70.40.25.152.70
HSM refresh.10.25.45.50.30.15.051.80
Application remediation.10.501.101.601.451.05.606.40
Network / infrastructure.05.20.35.45.40.35.302.10
Validation / testing.05.15.30.40.35.30.151.70
Parallel classical + PQC—.15.40.65.70.50.302.70
Total CapEx.35.751.351.551.05.70.456.20
Total OpEx.451.252.052.652.651.851.3012.20
Annual cash flow.802.003.404.203.702.551.7518.40
2Core assumptionsHighlighted cells are editable model inputs
Discount rate 8.5%Migration duration 7 yearsApp remediation $34.4K / appHSM replacement rate 64%Migration start Q2 2027Applications 186
SummaryAssumptionsMigration SchedulePKI + HSMApplicationsSensitivity
Illustrative model output — not a customer estimate
Output 01
Migration cost range
Low, base, and high cases with the inputs that drive the spread.
→Output 02Recurring infrastructure delta
What remains after the transition project is complete.
→Output 03Critical cost thresholds
Step changes in capacity, transport, validation, and parallel operation.
→Output 04Confidence and provenance
Measured inputs, customer inputs, public defaults, and bounded assumptions.
→Design partners
Price your migration.
We’re working with a small number of organizations to model the economics of their post-quantum transition.