What is post-quantum medical device readiness?

Post-quantum medical device readiness is how prepared a connected or implanted medical device is to keep its cryptographic identity and update integrity trustworthy once a cryptographically relevant quantum computer exists. A ready device signs its credentials and updates with quantum-resistant cryptography, can change algorithms in the field without a recall, and rotates keys in place. A device that relies only on RSA or elliptic-curve signatures, and cannot be updated, is exposed to the harvest-now-forge-later risk.

What is harvest now, forge later?

It is a documented threat pattern where an adversary captures today's classically-signed device credentials, firmware signatures, or attestation records now, then waits for a future quantum computer to forge or repudiate them. For a short-lived consumer gadget the risk is small. For an implant or a hospital device that stays in service for a decade or more and signs with RSA or elliptic-curve keys, the signature it ships with today may be forgeable long before the device is retired.

Does this checker give an FDA determination or clearance?

No. It is an educational readiness aid, not legal, clinical, or regulatory advice, and not an FDA determination. FDA premarket and postmarket cybersecurity expectations under section 524B turn on your specific device, its intended use, and your submission. Use the grade to organize a conversation with your regulatory and security teams, not as a compliance result.

Does the checker see any device data or PHI?

No. It runs entirely in your browser, sends nothing to a server, and asks only about design characteristics such as the signature algorithm and whether crypto can be updated in the field. It never touches protected health information and never inspects a real device. RankShieldMD as a platform is PHI-free by construction and is not a medical device.

What is crypto-agility, and why does the grade weight it?

Crypto-agility is the ability to change cryptographic algorithms in a device after it ships, ideally over the air, without a physical recall or service visit. It is weighted heavily because the migration to post-quantum cryptography will not be a single event: standards and parameters will keep evolving. A device that can update its algorithms in the field can migrate to ML-DSA and beyond as guidance matures. A device that cannot is frozen on whatever it shipped with.

Is a good grade the same as being quantum-proof?

No. A strong grade means the device is well positioned for the post-quantum transition: it uses or plans quantum-resistant signatures, it can update crypto in the field, and it can rotate keys. It is quantum-safe posture, not quantum-proof. No quantum computer capable of breaking today's cryptography exists yet, standards such as ML-DSA continue to mature, and no design removes the need for ongoing security work.

What does ML-DSA-65 have to do with medical devices?

ML-DSA is the NIST post-quantum digital signature standard, FIPS 204, derived from CRYSTALS-Dilithium. ML-DSA-65 is a middle security parameter set that many teams pair with a classical curve such as Ed25519 in a composite, or hybrid, signature. Pairing the two means the credential stays valid if either algorithm is later weakened, which is a sensible default for device identity and firmware signing that must remain defensible for years.

Post-Quantum Medical Device Readiness Checker

Interactive tool

Grade your device's post-quantum readiness.

Answer for one device design. Nothing you enter leaves your browser. The grade weighs the cryptography and governance that determine whether a device can survive the post-quantum transition, and the context questions set how urgent that transition is for this device.

Post-quantum device readiness checkerAnswer to grade

About the device

How is the device exposed?

Wireless and implanted devices have the largest attack surface.

Implanted or body-worn with wireless connectivity Connected to a network, Bluetooth, or Wi-Fi Standalone, no network or wireless interface

How long does the device stay in service?

The longer a device lives, the longer its signatures must resist a future quantum computer.

10 years or more, or an implant that cannot be recalled Roughly 3 to 10 years Under 3 years

Readiness 0 of 100

–Select an answer to each question to see a readiness grade.

Educational readiness aid only. Not FDA, legal, or clinical advice, and not an FDA determination or clearance. Runs entirely in your browser and reads no device data or PHI. RankShieldMD attests device evidence; it is not itself a medical device and does not make anyone compliant.

What the grade measures

Why does a medical device need to be post-quantum ready?

A medical device needs to be post-quantum ready because the cryptography that proves its identity and signs its updates must stay unforgeable for the whole time the device is in a patient, and in medicine that is often a decade or more, longer than today's RSA and elliptic-curve signatures are expected to hold against a quantum computer. The concern is not that a quantum computer exists today. It is the harvest-now-forge-later pattern: an adversary can record a device's classically-signed credentials and firmware signatures now and forge or repudiate them later, once a cryptographically relevant quantum computer arrives. A pacemaker or infusion pump signed only with RSA-2048 cannot be recalled to swap algorithms, so the signature it ships with is the signature it is stuck with. Readiness is the combination of using quantum-resistant signatures, being able to change algorithms in the field, and being able to rotate keys without a recall.

How does this connect to FDA section 524B?

Section 524B of the Federal Food, Drug, and Cosmetic Act, added by the Consolidated Appropriations Act of 2023, requires sponsors of cyber devices to provide a plan to monitor and address postmarket cybersecurity, to design and maintain the device so it can be updated and patched, and to provide a software bill of materials. FDA can refuse to accept a premarket submission that does not meet these expectations. Post-quantum readiness sits inside that frame in two ways. First, the ability to update and patch a device in the field is exactly the crypto-agility this checker weighs, because migrating to post-quantum signatures is a specific case of updating the device's cryptography. Second, the reasonable-assurance and monitoring expectations are easier to defend when device identity and update integrity rest on signatures that stay valid for the device's whole service life. This tool maps your answers onto those themes. It is an educational aid, not an FDA determination, and it does not certify anything.

Design factor	Post-quantum ready	Exposed to harvest-now-forge-later
Signature algorithm	Composite ML-DSA-65 with a classical curve	RSA-2048 or P-256 only
Field crypto update	Over-the-air, no recall needed	Fixed at manufacture
Key rotation	Remote, fleet-wide	Permanent shipping key
Device lifetime vs crypto	Crypto can outlast the device	Device outlives its signatures
524B evidence	SBOM, plan, disclosure ready	Not documented

What should a manufacturer do about a low grade?

A low grade is a roadmap, not a verdict. The most durable first move is crypto-agility: a field-updatable path so a device's signature algorithms can change without a physical recall, because the post-quantum migration will keep evolving as standards mature. With that path in place, a manufacturer can move device identity and firmware signing to composite post-quantum signatures, pairing ML-DSA-65, the NIST FIPS 204 standard, with a classical curve such as Ed25519 so the credential survives if either algorithm is later weakened. In-field key rotation comes next, so a fleet can re-key without service visits when a key or algorithm is retired. Around the cryptography, the 524B evidence base, a software bill of materials, a cybersecurity management plan, and a coordinated disclosure process, turns readiness into something a submission can point to. RankShieldMD's role in this is narrow and deliberate: it attests that a device carries post-quantum-safe credentials and that its update records are tamper-evident and independently verifiable. It attests the evidence. It does not render the device, and it is not itself a clearance.

Honest by design

What this tool is careful never to claim.

It is guidance, not a clearance

This is an educational readiness aid. It is not FDA, legal, or clinical advice, not an FDA determination, and no grade certifies a device or makes anyone compliant.

Quantum-safe, not quantum-proof

A strong grade means good post-quantum posture. No quantum computer that breaks today's cryptography exists yet, standards keep maturing, and no design ends the need for ongoing security work.

It sees no device or patient data

The checker runs in your browser and asks only about design choices. It never inspects a real device and never touches PHI. RankShieldMD attests evidence; it is not a medical device.

Answer engine

Post-quantum device readiness, answered.

Straight answers about verifiable healthcare AI. Tap a question, or type your own.

Jamie Kloncz, founderverified human ✓

Ask me anything about proving your clinical AI. I built RankShieldMD so a small practice can prove its AI, not just be asked to trust it.

What is post-quantum medical device readiness?: Post-quantum medical device readiness is how prepared a connected or implanted medical device is to keep its cryptographic identity and update integrity trustworthy once a cryptographically relevant quantum computer exists. A ready device signs its credentials and updates with quantum-resistant cryptography, can change algorithms in the field without a recall, and rotates keys in place. A device that relies only on RSA or elliptic-curve signatures, and cannot be updated, is exposed to the harvest-now-forge-later risk.
What is harvest now, forge later?: It is a documented threat pattern where an adversary captures today's classically-signed device credentials, firmware signatures, or attestation records now, then waits for a future quantum computer to forge or repudiate them. For a short-lived consumer gadget the risk is small. For an implant or a hospital device that stays in service for a decade or more and signs with RSA or elliptic-curve keys, the signature it ships with today may be forgeable long before the device is retired.
Does this checker give an FDA determination or clearance?: No. It is an educational readiness aid, not legal, clinical, or regulatory advice, and not an FDA determination. FDA premarket and postmarket cybersecurity expectations under section 524B turn on your specific device, its intended use, and your submission. Use the grade to organize a conversation with your regulatory and security teams, not as a compliance result.
Does the checker see any device data or PHI?: No. It runs entirely in your browser, sends nothing to a server, and asks only about design characteristics such as the signature algorithm and whether crypto can be updated in the field. It never touches protected health information and never inspects a real device. RankShieldMD as a platform is PHI-free by construction and is not a medical device.
What is crypto-agility, and why does the grade weight it?: Crypto-agility is the ability to change cryptographic algorithms in a device after it ships, ideally over the air, without a physical recall or service visit. It is weighted heavily because the migration to post-quantum cryptography will not be a single event: standards and parameters will keep evolving. A device that can update its algorithms in the field can migrate to ML-DSA and beyond as guidance matures. A device that cannot is frozen on whatever it shipped with.
Is a good grade the same as being quantum-proof?: No. A strong grade means the device is well positioned for the post-quantum transition: it uses or plans quantum-resistant signatures, it can update crypto in the field, and it can rotate keys. It is quantum-safe posture, not quantum-proof. No quantum computer capable of breaking today's cryptography exists yet, standards such as ML-DSA continue to mature, and no design removes the need for ongoing security work.
What does ML-DSA-65 have to do with medical devices?: ML-DSA is the NIST post-quantum digital signature standard, FIPS 204, derived from CRYSTALS-Dilithium. ML-DSA-65 is a middle security parameter set that many teams pair with a classical curve such as Ed25519 in a composite, or hybrid, signature. Pairing the two means the credential stays valid if either algorithm is later weakened, which is a sensible default for device identity and firmware signing that must remain defensible for years.

Early access

Turn a readiness grade into verifiable evidence.

Bring one device design. We will show how RankShieldMD attests post-quantum-safe device credentials and seals tamper-evident, independently verifiable update records that support your 524B submission. It attests the evidence, without PHI, and it is not a clearance.

Request early access → Post-quantum implants

Post-quantum medical device readiness.