Post-quantum cryptography for supply chain and logistics
Supply-chain security is fundamentally a signature problem: proving a component, firmware image or shipment record is authentic and unaltered. Those signatures must remain verifiable for the full service life of the asset — often 10 to 20 years for industrial and automotive parts. A classical signature applied today is forgeable once large quantum computers exist, which undermines provenance exactly when you most need to trust it.
Firmware and code signing outlive the device
When you ship a device that verifies signed firmware updates, the signature scheme is baked into hardware and must stay secure for the device’s entire life. If that device is deployed for 15 years and a quantum computer arrives in year 8, ECDSA-based update verification can be forged and malicious firmware pushed. Post-quantum code signing with ML-DSA (FIPS 204), or stateless hash-based SPHINCS+ for the most conservative long-term signing, closes that window before it opens.
Provenance and tamper-evidence
Every hand-off in a supply chain — manufacture, customs, warehouse, delivery — can be recorded as a signed, hash-chained entry. Alter one record and the chain no longer verifies, so a counterfeit or diverted part is detectable without trusting any single intermediary. Signing those records with post-quantum signatures means the provenance history stays checkable for the decades a regulated part may remain in service.
Honest scope
PQC signatures prove authenticity, integrity and ordering of what was recorded; they do not prove a physical part matches its digital record — that still needs secure enrollment at the source. The algorithms are resistant to known attacks per NIST, not unbreakable. Start with firmware verification and high-value provenance, where the device lifetime already exceeds the quantum horizon.
Try it yourself — live, free, verifiable in 30 seconds:
Sign provenance records with PQC →