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[Credential Lifecycle] - Revocation with retroactive flag #302

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[Credential Lifecycle] - Revocation with retroactive flag #302

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[Credential Lifecycle] - Revocation with retroactive flag
SaraConsoliACN Jun 3, 2024
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Updated according to the latest "draft-demarco-oauth-status-assertion…
SaraConsoliACN Jun 28, 2024
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SaraConsoliACN Jun 28, 2024
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7 changes: 7 additions & 0 deletions docs/en/revocation-lists.rst
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Expand Up @@ -100,6 +100,13 @@ Credential Revocation Flows can start under different scenarios, such as:
- The Authentic Sources that for any administrative reasons update one or more attributes of a User, shall inform the Issuer of related Credentials.
- The Issuers, for technical security reasons (e.g. in the case of compromised cryptographic keys, death of the User, etc.), can decide to revoke the Credentials.

The Credential in some cases MUST be considered valid (thus is still accurate, useful and valid) for the period before the revocation: a driving license, revoked due expiration or other reasons, is still valid for the period before the revocation.
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The Credential in some cases MUST be considered valid (thus is still accurate, useful and valid) for the period before the revocation: a driving license, revoked due expiration or other reasons, is still valid for the period before the revocation.
There are cases where a Credential MAY be considered valid (thus is still accurate, useful and valid) for a period after the revocation: a driving license, revoked due expiration or other reasons, MAY be still valid for the period after the revocation.

is this what you want to say?
could you please bring also legal evidences as example according to the italian regulation?

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Not really, considering the example of Residence Certificate: I may be resident in Rome up to 31st of December 2023. I change my residency to Milan from 1st of January 2024, thus the previous residency certificate gets revoked.
The residency certificate revoked (Rome's residency) is still valid for any activity/action related to year 2023 and before (e.g. I need to pay taxes in Rome city for 2023, and these taxes are paid in 2024).

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@peppelinux peppelinux Jun 8, 2024 •
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the scope of this project is the definition of the technical rules. Legal and administrative aspects specifically related to the scopes of the credentials, according to their type or use cases, must be taken out of this specification.

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As a general comment, the verifier policy always determines "validity", issuer's provide guidance and integrity protection, the "validity" is always in the eye of the verifier.

You might consider language like:

A verifier MAY accept credentials presented outside of their validity period, or with revoked or suspended status.
Verifier policies are out of scope for this document.


Revocation MUST therefore include a parameter indicating whether it is retroactive or not. It SHOULD not invalidate further use of the credential, as it MAY be used to attest activity outside the revocation interval. This parameter name is **credential_status_validity** and contains two additional parameters to handle the Credential retroactivity: **suspended** and **revoked**.

If ``revoked`` parameter is set to ``true``, the credential MUST be invalid also for the period prior to the revocation date.

If ``suspended`` parameter is set to ``true``, the credential MUST be considered valid up to revocation date and could be used to demonstrate that, before revocation, the holder was entitled to perform related activities.

The revocation scenarios involve two main flows:

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