Daniel FedickFIELD CTO
blog.fedick.net / posts

Posts

2 · newest first
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2026-10-08Post-Quantum, Plainly · Part 1The Locks: Post-Quantum Algorithms in Plain EnglishAlgorithms are lock designs. Keys fit those designs. Crypto-agility means swapping the lock without replacing the door. A plain-English tour of hashes, elliptic curves, lattices, hash-based signatures, and code-based crypto.
post-quantumpqccryptographyhashes
6 min
2026-10-08Assume the Math Will Move: Crypto-Agility After Vitalik's AI WarningVitalik Buterin says AI-accelerated math could shrink crypto security margins, including for lattices. I agree, and I think the answer is crypto-agility: hybrids, swappable algorithms, and migrations you have rehearsed before you need them.
post-quantumcrypto-agilitypqccryptography
9 min

Series · Post-Quantum, Plainly

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About

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Role
Field CTO, HashiCorp Public Sector (IBM)
Writes on
HashiCorp and IBM products, post-quantum cryptography, PKI, secrets management, Ethereum
Ethos
Privacy is a right. Your keys are your data. Math beats promises. Don't trust, verify.
Note
Views are my own and do not represent my employer.