Agile is the new black – Why Preparing for Postquantum Crypto also Matters to You!
summary
Quantum-capable computers running Shor's algorithm can derive private keys and break RSA/elliptic-curve systems, creating a store‑now‑decrypt‑later risk for archived encrypted data and signatures. NIST is running a standards competition with candidates (e.g., lattice, hash, code, multivariate, isogeny families) and recent breaks (Rainbow) show fragility. The US issues an executive order forcing government migration planning; practical mitigations are NIST standardisation adoption, hybrid signatures and planned re‑encryption or dual-signature deployments across PKI and supplier stacks.
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