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Alice & Bob say RSA-2048 crackable with 22,593 cat qubits

Original: Alice & Bob published a resource estimate today: 22,593 cat qubits could factor RSA-2048 in about three days, and the el

French quantum hardware startup Alice & Bob published a new resource estimate putting the cost of breaking RSA-2048 far below previous assumptions: roughly 22,593 cat qubits running for about three days. The estimate also says factoring the elliptic-curve discrete logarithm on secp256k1, the curve protecting Bitcoin, would take about an hour on at most 29,588 qubits. Security researchers are weighing the implications for encrypted traffic and cryptocurrency, though such hardware does not yet exist.

Why now: New estimates dramatically lowering the qubit count needed to break mainstream encryption raise fresh urgency around post-quantum cryptography migration.

Alice & BobRSA-2048secp256k1Bitcoin

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• Alice & Bob published a resource estimate today: 22,593 cat qubits could factor RSA-2048 in about three days, and the elliptic-curve discrete logarithm on secp256k1, Bitcoin's curve, would take about an hour on at most 29,588 qubits. https:// postquantum.com/security-pqc/a… · infosec@defcon.social · 2

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