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RFC 9881finalA1IETF · 2025-10

ML-DSA in X.509 certificates

Defines algorithm identifiers and encodings for ML-DSA in X.509.

What it changes in practice
  • ·CAs, certificate management and validation stacks all need updates
  • ·Chain sizes and profile support become deployment blockers
Last verified 2026-09-06
Same layer
RFC 9882