Post-quantum migration is fundamentally a key management problem.
You can’t upgrade key security if you can’t find the keys. A key management service (KMS) centralizes key generation, storage, access control, rotation, and audit, so keys live in one hardened place, like a trusted execution environment (TEE). That's security you need today.
Post quantum cryptography (PQC) is security for the future where quantum computers will eventually break public key encryption.
These threats are relevant today. Harvest now, decrypt later attacks collect encrypted data today to break it once quantum machines are strong enough.
So why do you need both?
When every key lives in a KMS and you swap in quantum-resistant algorithms, every key inherits the upgrade. The KMS becomes your layer of cryptographic agility.
A KMS also automates the mechanics of generating new keys, re-encrypting data, and key rotation and retirement across your stack. It also absorbs the friction of PQC's larger keys and signatures so your applications stay fast.
With quantum computing still on the horizon, and KMS options available from every cloud provider, why is SpaceComputer building a post-quantum agile platform?
One simple reason: a satellite launched today must be ready for the next 5-10 years. You can't add hardware in orbit (for obvious reasons), so crypto-agility must be built in before launch.
Our KMS will anchor keys in attested TEEs, non-exportable by design: they can be used but never extracted.
We're starting with hardened infrastructure on Earth, eventually moving to keys born in orbit inside a satellite-based TEE, with post-quantum readiness currently in development.
So we ask you: how are your security keys managed today? And if you could test a KMS built for orbit: would you?
Drop a 🙋 below if you'd want early access.