I-D Action: draft-dogru-cedulon-reattestation-00.txt

Internet-Draft draft-dogru-cedulon-reattestation-00.txt is now available.

   Title:   Cedulon Re-Attestation: Carrying Spend Evidence Across Algorithm Retirement
   Author:  Emek Can Dogru
   Name:    draft-dogru-cedulon-reattestation-00.txt
   Pages:   6
   Dates:   2026-08-25

Abstract:

   Audit evidence is only useful for as long as it can be verified.
   Cedulon produces COSE spend receipts and epoch checkpoints whose
   signature algorithms will eventually be deprecated or broken; the
   recent transition from polymorphic EdDSA to fully-specified Ed25519
   algorithm identifiers shows that even identifiers change within a
   decade.  This document proposes a re-attestation profile for Cedulon
   evidence: a signed statement, produced while the original algorithm
   is still trustworthy, that binds the original evidence bytes to a
   successor algorithm and is registered in a SCITT transparency
   service.  Chains of such statements allow a verifier decades later to
   trust evidence whose original cipher has been retired.  Structures
   are meant to outlive ciphers.  This is an extension proposal to the
   Cedulon core document; its normative language is provisional and the
   companion implementation does not implement it yet.

The IETF datatracker status page for this Internet-Draft is:
https://datatracker.ietf.org/doc/draft-dogru-cedulon-reattestation/

There is also an HTML version available at:
https://www.ietf.org/archive/id/draft-dogru-cedulon-reattestation-00.html

Internet-Drafts are also available by rsync at:
rsync.ietf.org::internet-drafts


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