Use of Evidence generating key material for AE identification #399
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henkbirkholz
requested review from
thomas-fossati,
yogeshbdeshpande and
nedmsmith
as code owners
draft-ietf-rats-corim.md
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| The integrity of public and private key material and the secrecy of private key material must be ensured at all times. | ||
| This includes key material carried in attestation key triples and key material used to verify the authority of triples (such as public keys that identify trusted supply chain actors). | ||
| For more detailed information on protecting Trust Anchors, refer to {{Section 12.4 of -rats-arch}}. | ||
| As it is possible to use the public part of an asymmetric key pair for Evidence generation to be used to identify an Attesting Environment, this method of potentially identifying unique instances of Attesting Environments (and profiling their respective owners) can come with privacy considerations that have to be carefully weighed. |
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The text here is not clear to me?
Are we saying:
- Asymmetric Key Pair used to sign the Evidence OR
- Public Part of Asymmetric Key pair is part of Evidence Claim used to identify the Attesting Env?
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Public keys are PII unless they are for group signing (where the size of the group is privacy preserving).
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Are we saying:
Asymmetric Key Pair used to sign the Evidence OR Public Part of Asymmetric Key pair is part of Evidence Claim used to identify the Attesting Env?
Yes. That happens and is a PII issue.
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Public keys are PII unless they are for group signing (where the size of the group is privacy preserving).
Yes. Is the DAA scenario relevant here?
nedmsmith
reviewed
Feb 24, 2025
draft-ietf-rats-corim.md
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| The integrity of public and private key material and the secrecy of private key material must be ensured at all times. | ||
| This includes key material carried in attestation key triples and key material used to verify the authority of triples (such as public keys that identify trusted supply chain actors). | ||
| For more detailed information on protecting Trust Anchors, refer to {{Section 12.4 of -rats-arch}}. | ||
| As it is possible to use the public part of an asymmetric key pair for Evidence generation to be used to identify an Attesting Environment, this method of potentially identifying unique instances of Attesting Environments (and profiling their respective owners) can come with privacy considerations that have to be carefully weighed. |
There was a problem hiding this comment.
Public keys are PII unless they are for group signing (where the size of the group is privacy preserving).
Co-authored-by: Thomas Fossati <[email protected]>
yes Co-authored-by: Thomas Fossati <[email protected]>
okay Co-authored-by: Ned Smith <[email protected]>
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fixes #156