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SD-JWT VC Issuer Signature Profiles/Mechanisms #316

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SD-JWT VC Issuer Signature Profiles/Mechanisms #316

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@bc-pi bc-pi commented Jun 10, 2025 •
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This is inspired by numerous discussions over the past many months, including (but not limited to) those with @alenhorvat and @awoie about better modularization of signature profiles in SD-JWT VC.

Highlights of this change:

  • Renames 'Issuer-signed JWT Verification Key Validation' to 'Issuer Signature Mechanisms' and reworks some text accordingly.
  • Provides a web-based metadata resolution mechanism and an inline x509 mechanism.
  • A DID-based mechanism is not explicitly provided but still possible via profile/extension.
  • Is more explicit that the employed Issuer Signature Mechanism has to be one that is permitted for the Issuer according to policy.
  • Is more clear that one permitted Issuer Signature Mechanism is sufficient.

Effectively supersedes PR #299

Touches on and/or fixes Issues #253 and #281

@bc-pi
Rename 'Issuer-signed JWT Verification Key Validation' to 'Issuer Sig…
f1dbaf9 
…nature Mechanisms' and rework some text accordingly. Provide a web-based metadata resolution mechanism and an inline x509 mechanism. A DID-based mechanism is not explicitly provided herein but still possible via profile/extension. Be explicit that the employed Issuer Signature Mechanism has to be one that is permitted for the Issuer according to policy.
@bc-pi bc-pi requested review from awoie and danielfett as code owners June 10, 2025 17:55
awoie
awoie approved these changes Jun 10, 2025
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Great PR, I like how the extension is now clearly defined while allowing room for signature profiles in ETSI.

@bc-pi bc-pi mentioned this pull request Jun 10, 2025
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This was linked to issues Jun 10, 2025
Should the verifier stop issuer key discovery if they already got one that worked for them? #281
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Issuer-signed JWT Verification Key Validation - Separation of signature and identity verification/validation? #253
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bc-pi
bc-pi commented Jun 10, 2025
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@awoie awoie awoie approved these changes

@danielfett danielfett Awaiting requested review from danielfett danielfett is a code owner

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