The slow-moving threat that blockchains can’t ignore
Quantum computers still look like lab toys: Racks of hardware, error-prone qubits and almost no real-world applications. Yet if you check the roadmaps of major layer-1 blockchains, a new priority now sits next to scaling and modularity: post-quantum security.
The concern is simple even if the math isn’t. Most major blockchains rely on elliptic-curve signatures (ECDSA and Ed25519) to prove that a transaction came from the owner of a…
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