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RFC 9925 - Unsigned X.509 Certificates

  • Status: Proposed Standard
  • Published: February 2026
  • Stream: IETF
  • Errata: No Errata

Abstract​

This document defines a placeholder X.509 signature algorithm that may be used in contexts where the consumer of the certificate is not expected to verify the signature. It describes how Unsigned X.509 Certificates can be represented while preserving compatibility with PKI data structures.

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