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Quantum

Post-Quantum Readiness, Chain by Chain: The Honest List

August 7, 2026 by Vinoth Kanna

Scorecard of six chains and what signs their transactions, from QRL using hash-based XMSS down to Bitcoin using ECDSA.

"Quantum-resistant" is an unregulated marketing term. Nobody audits it, search engines reward it, and the gap between chains that say it and chains that are it is now wide enough to mislead real money. This page sorts six chains not by their claims but by one question: if a large quantum computer existed tomorrow, what would actually stand? The test throughout is simple … [Read more...] about Post-Quantum Readiness, Chain by Chain: The Honest List

What a Quantum Computer Could Actually Break

August 7, 2026 by Vinoth Kanna

Comparison of Shor and Grover algorithms: exponential speedup breaking elliptic-curve signatures versus a quadratic speedup only halving hash security.

Nearly every claim about quantum computers and cryptocurrency traces back to two algorithms: Shor's (1994) and Grover's (1996). They are routinely bundled together as "quantum computers break crypto", which hides the single most useful fact in this field: they have wildly different power. Shor's algorithm destroys the mathematics behind today's signatures. Grover's only … [Read more...] about What a Quantum Computer Could Actually Break

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An independent reference on crypto self-custody — keys, backups, inheritance, and the scams built to take them.

We do not make or sell wallets, backup plates, or any other product. Some links earn a commission; that never changes a recommendation.

Written by Vinoth Kanna.

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About SteelPhrase

An independent reference on crypto self-custody — keys, backups, inheritance, and the scams built to take them.

We do not make or sell wallets, backup plates, or any other product. Some links earn a commission; that never changes a recommendation.

Written by Vinoth Kanna.

Topics

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  • Seed Phrases

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