// archive
All studies
Technical reporting on the post-quantum frontier: cryptanalysis, defense, migration. No sponsors, no tracking.
2 pieces
cryptanalysis
4 min read
01
RSA-2048 falls: the 20M noisy-qubit estimate, redrawn
Gidney & Ekerå said ~20 million noisy qubits and ~8 hours. Three years of error-correction progress later, the number is moving — but not the conclusion. Where the 2026 resource estimates land.
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cryptanalysis
5 min read
02
Shor's Algorithm vs Bitcoin: anatomy of a key-derivation kill chain
How Shor's period-finding routine breaks ECDSA over secp256k1, what that means for exposed Bitcoin UTXOs, and what migration to a post-quantum signature scheme actually looks like at protocol level.
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