Imagine if, tomorrow, someone invented a “digital skeleton key” that could unlock any keyless entry system. Overnight, millions of door locks, garages and practically every modern vehicle would become vulnerable to theft. Can you picture the mad scramble when everyone realizes their valuables are suddenly unprotected? Then, you can understand why security experts are concerned about the looming collision of quantum computing and cryptography.
Post-quantum cryptography (PQC) envisions a future in which bad actors can use quantum computers to crack today’s strongest encryption and digital signature schemes. And that future is coming. Each new advance brings us closer to functional quantum systems that can perform calculations that are effectively impossible today—including cracking modern encryption and signing algorithms.
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