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Handle creation date in private key files for re-use of an existing key.
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Description

We need smartcard support for the ECC part and should also add a link
into the .key files to show which of them belong together. This is for
the case that we lost the public key. We also need to decide which of
the creation dates are stored in the .key files. The latter is for
example needed if keys are created from existing private keys.

Event Timeline

werner triaged this task as Normal priority.Sep 12 2024, 2:31 PM
werner created this task.
werner created this object with edit policy "Contributor (Project)".
werner renamed this task from Kyber+ECC with smartcards to Handle creation date in private key files for re-use of an existing..Sun, Nov 16, 6:54 PM
werner lowered the priority of this task from Normal to Low.
werner removed a project: PQC.

This is not a composite key specific thing despite that this is an extra challenge. The creation date is used to reconstruct a key if the public key has been lost and only the fingerprint is still available. A solution might be to test the all combinations of stored creation dates to match the fingerprint.

werner renamed this task from Handle creation date in private key files for re-use of an existing. to Handle creation date in private key files for re-use of an existing key..Sun, Nov 16, 6:57 PM