and Signatures – no Problem?
summary
Argues that qualified digital signatures require immediate action because legal signatures often must remain valid for 30 years while algorithmic certainty is far shorter; notes PKI migrations historically take about 10 years and NIST’s PQC process already runs six years. Proposes concrete hybrid options—related/catalyst/careleon certificate extensions, K-of-N composite signatures, cross-certified root updates—and a D-Trust style HI‑PKI with automated key switching; flags time‑stamping as effective but costly.
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chapters (8)
- 0:00Introduction
- 1:27Act now on digital signatures
- 5:24Post-quantum cryptography challenges
- 12:19Extending signature longevity with hybrids
- 19:53Hybrid signature schemes overview
- 25:00Crypto-agile PKI for post-quantum
- 27:49Key takeaways and outlook
- 28:55Q&A: One PKI solution?
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