rfc9711v9.txt   rfc9711.txt 
Internet Engineering Task Force (IETF) L. Lundblade Internet Engineering Task Force (IETF) L. Lundblade
Request for Comments: 9711 Security Theory LLC Request for Comments: 9711 Security Theory LLC
Category: Standards Track G. Mandyam Category: Standards Track G. Mandyam
ISSN: 2070-1721 ISSN: 2070-1721
J. O'Donoghue J. O'Donoghue
Qualcomm Technologies Inc. Qualcomm Technologies Inc.
C. Wallace C. Wallace
Red Hound Software, Inc. Red Hound Software, Inc.
January 2025 April 2025
The Entity Attestation Token (EAT) The Entity Attestation Token (EAT)
Abstract Abstract
An Entity Attestation Token (EAT) provides an attested claims set An Entity Attestation Token (EAT) provides an attested claims set
that describes the state and characteristics of an entity, a device that describes the state and characteristics of an entity, a device
such as a smartphone, an Internet of Things (IoT) device, network such as a smartphone, an Internet of Things (IoT) device, network
equipment, or such. This claims set is used by a relying party, equipment, or such. This claims set is used by a relying party,
server, or service to determine the type and degree of trust placed server, or service to determine the type and degree of trust placed
skipping to change at line 486 skipping to change at line 486
uses the term "label" to refer to CBOR map keys to avoid confusion uses the term "label" to refer to CBOR map keys to avoid confusion
with cryptographic keys.) with cryptographic keys.)
Claim Value: The value portion of the claim. A claim value can be Claim Value: The value portion of the claim. A claim value can be
any CBOR data item or JSON value. any CBOR data item or JSON value.
Claims Set: The CBOR map or JSON object that contains the claims Claims Set: The CBOR map or JSON object that contains the claims
conveyed by the CWT or JWT. conveyed by the CWT or JWT.
This document reuses terminology from RATS Architecture [RFC9334]; This document reuses terminology from RATS Architecture [RFC9334];
note that EAT does not capitalize RATS terms like “evidence” for note that EAT does not capitalize RATS terms like "evidence" for
easier readability: easier readability:
Attester: A role performed by an entity (typically a device) whose Attester: A role performed by an entity (typically a device) whose
evidence must be appraised in order to infer the extent to which evidence must be appraised in order to infer the extent to which
the attester is considered trustworthy, such as when deciding the attester is considered trustworthy, such as when deciding
whether it is authorized to perform some operation. whether it is authorized to perform some operation.
Verifier: A role that appraises the validity of evidence about an Verifier: A role that appraises the validity of evidence about an
attester and produces attestation results to be used by a relying attester and produces attestation results to be used by a relying
party. party.
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