What Is Quantum-Safe Encryption and Do I Need It?

Most organizations don't spend much time thinking about the cryptography underneath their systems. It just works. That assumption is starting to require a second look.

The Encryption Protecting Your Business Is Changing

Encryption is embedded throughout modern business. It protects communications, financial transactions, customer information, intellectual property, authentication systems, cloud services, and countless other digital processes.

The problem is that some of the public-key cryptographic algorithms organizations rely on today were designed for a world of conventional computers.

Quantum computing is creating a new security consideration.

A sufficiently capable quantum computer could threaten widely used public-key cryptographic systems. That does not mean today's encryption has suddenly stopped working. It means organizations need to prepare for a future in which some of today's cryptographic protections may no longer provide the security they were designed to deliver.

What Does "Quantum-Safe" Mean?

Quantum-safe — also commonly called post-quantum or quantum-resistant cryptography — refers to cryptographic approaches designed to remain secure against attacks from both conventional and sufficiently capable quantum computers.

This is no longer simply an academic research topic.

In August 2024, the U.S. National Institute of Standards and Technology (NIST) finalized its first three post-quantum cryptography standards:

• FIPS 203 — ML-KEM (key encapsulation)
• FIPS 204 — ML-DSA (digital signatures)
• FIPS 205 — SLH-DSA (digital signatures)

These standards address key establishment and digital signatures and were designed to resist attacks from future quantum computers.

Does My Organization Need It Today?

The more useful question is: how long does your information need to remain confidential?

Some business information loses value quickly. Other information may remain sensitive for many years. Data that needs long-term protection includes:

• Intellectual property
• Financial records
• Customer data
• Strategic plans
• Government information
• Authentication credentials
• Proprietary research
• Long-term contracts and communications

Organizations handling any of these categories need to consider whether information encrypted today could still have value when more capable quantum computing becomes available. Adversaries can capture encrypted traffic now and decrypt it later — a tactic sometimes called "harvest now, decrypt later."

Start With Visibility

Organizations do not necessarily need to replace every cryptographic system immediately. They do need to understand what they have.

A practical starting point is building a cryptographic inventory:

• What information are we protecting?
• Which applications and systems protect it?
• Which cryptographic algorithms, keys, certificates, protocols, and libraries do those systems depend upon?
• How long must the protected information remain confidential?
• Which systems would be most difficult to migrate?

Once those questions are answered, an organization can prioritize its transition rather than trying to replace everything at once.

Quantum Readiness Is a Migration Strategy

The transition to quantum-safe security should be treated as an architectural and risk-management program, not a single technology purchase.

NIST notes that historically it can take 10 to 20 years for newly standardized algorithms to become fully integrated into information systems. That makes preparation important even though no one knows precisely when a cryptographically relevant quantum computer will exist.

The objective is not to predict an exact date. The objective is to ensure that your organization is not dependent on vulnerable cryptography when that date arrives.

How Amera Approaches Quantum-Safe Security

At Amera, we approached the problem from first principles. AmeraKey eliminates keys from the network entirely — there are no keys to intercept, no secrets to expose, and nothing for a quantum computer to attack. Instead of building stronger keys, we remove the attack surface.

This keyless architecture is designed for organizations that cannot afford to be caught mid-migration when the threat matures. For a deeper look at the underlying design, our white papers on quantum-proof encryption and why PKI is the wrong bet for the post-quantum era are a good starting point.