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Fixed issues dealing with wording and smaller issues. #26

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Apr 25, 2021
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Fixed issues dealing with wording and smaller issues. #26

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14 changes: 7 additions & 7 deletions draft-ietf-rats-reference-interaction-models.md
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Expand Up @@ -181,13 +181,13 @@ Attester Identity:

: The provenance of Evidence with respect to a distinguishable Attesting Environment MUST be correct and unambiguous.

: An Attester Identity MAY be a unique identity, it MAY be included in a zero-knowledge proof (ZKP), or it MAY be part of a group signature, or it MAY be a randomised DAA credential.
: An Attester Identity MAY be a unique identity, it MAY be included in a zero-knowledge proof (ZKP), or it MAY be part of a group signature, or it MAY be a randomized DAA credential.

Attestation Evidence Authenticity:

: Attestation Evidence MUST be correct and authentic.
: Attestation Evidence MUST be authentic.

: In order to provide proofs of authenticity, Attestation Evidence SHOULD be cryptographically associated with an identity document (e.g. an PKIX certificate or trusted key material, or a randomised DAA credential), or SHOULD include a correct and unambiguous and stable reference to an accessible identity document.
: In order to provide proofs of authenticity, Attestation Evidence SHOULD be cryptographically associated with an identity document (e.g., a PKIX certificate or trusted key material, or a randomized DAA credential respectively), or SHOULD include a correct, unambiguous, and stable reference to an accessible identity document.

Authentication Secret:

Expand Down Expand Up @@ -255,7 +255,7 @@ Reference Claims ('refClaims')

: Reference Claims are components of Reference Values as defined in {{-RATS}}. [Editor's Note: Definition might become obsolete, if replaced by Reference Values. Is there a difference between Claims and Values here? Analogously, why is not named Reference Claims in the RATS arch?]

: Reference Claims are used to appraise the Claims received from an Attester via appraisal by direct comparison. For example, Reference Claims MAY be Reference Integrity Measurements (RIM) or assertions that are implicitly trusted because they are signed by a trusted authority (see Endorsements in {{-RATS}}). Reference Claims typically represent (trusted) Claim sets about an Attester's intended platform operational state.
: Reference Claims are used to appraise the Claims received from an Attester. For example, Reference Claims MAY be Reference Integrity Measurements (RIM) or assertions that are implicitly trusted because they are signed by a trusted authority (see Endorsements in {{-RATS}}). Reference Claims typically represent (trusted) Claim sets about an Attester's intended platform operational state.

Claim Selection ('claimSelection'):

Expand All @@ -275,7 +275,7 @@ Attestation Result ('attestationResult'):

: *mandatory*

: An Attestation Result is produced by the Verifier as the output of the appraisal of Evidence. Attestation Results include condensed assertions about integrity or other characteristics of the corresponding Attester that are digestable by Relying Parties.
: An Attestation Result is produced by the Verifier as the output of the appraisal of Evidence. Attestation Results include condensed assertions about integrity or other characteristics of the corresponding Attester that are processible by Relying Parties.

# Interaction Models

Expand Down Expand Up @@ -497,11 +497,11 @@ The current version ('1bcb469') implements a challenge/response interaction mode

## License

The CHARRA project and all corresponding code and data maintained on github are provided under the BSD 3-Clause "New" or "Revised" license.
The CHARRA project and all corresponding code and data maintained on GitHub are provided under the BSD 3-Clause "New" or "Revised" license.

## Implementation Dependencies

The implementation requires the use of the official Trusted Computing Group (TCG) open-source Trusted Software Stack (TSS) for the Trusted Platform Module (TPM) 2.0. The corresponding code and data is also maintained on github and the project resources can be located via: https://github.com/tpm2-software/tpm2-tss/
The implementation requires the use of the official Trusted Computing Group (TCG) open-source Trusted Software Stack (TSS) for the Trusted Platform Module (TPM) 2.0. The corresponding code and data is also maintained on GitHub and the project resources can be located via: https://github.com/tpm2-software/tpm2-tss/

The implementation uses the Constrained Application Protocol {{-COAP}} (http://coap.technology/) and the Concise Binary Object Representation {{-CBOR}} (https://cbor.io/).

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