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…re/OIDF-45-status-endpoint # Conflicts: # .fleet/run.json # admin-server/build.gradle.kts # gradle/libs.versions.toml
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| <h1 align="center"> | ||
| <br> | ||
| <a href="https://www.sphereon.com"><img src="https://sphereon.com/content/themes/sphereon/assets/img/logo.svg" alt="Sphereon" width="400"></a> | ||
| <br>OpenID Federation Monorepo | ||
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| </h1> | ||
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| # Background | ||
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| OpenID Federation is a framework designed to facilitate the secure and interoperable interaction of entities within a federation. This involves the use of JSON Web Tokens (JWTs) to represent and convey necessary information for entities to participate in federations, ensuring trust and security across different organizations and systems. | ||
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| In the context of OpenID Federation, Entity Statements play a crucial role. These are signed JWTs that contain details about the entity, such as its public keys and metadata. This framework allows entities to assert their identity and capabilities in a standardized manner, enabling seamless integration and interoperability within federations. | ||
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| ## Key Concepts | ||
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| - **Federation**: A group of organizations that agree to interoperate under a set of common rules defined in a federation policy. | ||
| - **Entity Statements**: JSON objects that contain metadata about entities (IdPs, RPs) and their federation relationships. | ||
| - **Trust Chains**: Mechanisms by which parties in a federation verify each other’s trustworthiness through a chain of entity statements, leading back to a trusted authority. | ||
| - **Federation API**: Interfaces defined for entities to exchange information and perform operations necessary for federation management. | ||
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| ## Core Components | ||
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| - **Federation Operator**: The central authority in a federation that manages policy and trust chain verification. | ||
| - **Identity Providers (IdPs)**: Entities that authenticate users and provide identity assertions to relying parties. | ||
| - **Relying Parties (RPs)**: Entities that rely on identity assertions provided by IdPs to offer services to users. | ||
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| ## Technical Features | ||
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| - **JSON Web Tokens (JWT)**: Used for creating verifiable entity statements and security assertions. | ||
| - **JSON Object Signing and Encryption (JOSE)**: Standards for signing and encrypting JSON-based objects to ensure their integrity and confidentiality. | ||
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| ## Operational Model | ||
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| - **Dynamic Federation**: Allows entities to join or adjust their federation relationships dynamically, based on real-time verification of entity statements. | ||
| - **Trust Model**: Establishes a model where trust is derived from known and verifiable sources and can be dynamically adjusted according to real-time interactions and policy evaluations. | ||
| - **Conflict Resolution**: Defines how disputes or mismatches in federation policies among entities are resolved. | ||
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| # Data Structure | ||
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| ## Entity Statement Overview | ||
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| ### 1. Definition | ||
| - An Entity Statement is a signed JWT containing information necessary for the Entity to participate in federations. | ||
| - **Entity Configuration**: An Entity Statement about itself. | ||
| - **Subordinate Statement**: An Entity Statement about an Immediate Subordinate Entity by a Superior Entity. | ||
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| ### 2. Requirements and Structure | ||
| - **Type**: JWT must be explicitly typed as `entity-statement+jwt`. | ||
| - **Signature**: Signed using the issuer’s private key, preferably using ECDSA with P-256 and SHA-256 (ES256). | ||
| - **Key ID (kid)**: The header must include the Key ID of the signing key. | ||
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| ### 3. Claims in an Entity Statement | ||
| - **iss (Issuer)**: Entity Identifier of the issuer. | ||
| - **sub (Subject)**: Entity Identifier of the subject. | ||
| - **iat (Issued At)**: Time the statement was issued. | ||
| - **exp (Expiration Time)**: Time after which the statement is no longer valid. | ||
| - **jwks (JSON Web Key Set)**: Public keys for verifying signatures. Required except in specific cases like Explicit Registration. | ||
| - **authority_hints** (Optional): Identifiers of Intermediate Entities or Trust Anchors that may issue Subordinate Statements. | ||
| - **metadata** (Optional): Represents the Entity’s Types and metadata. | ||
| - **metadata_policy** (Optional): Defines a metadata policy, applicable to the subject and its Subordinates. | ||
| - **constraints** (Optional): Defines Trust Chain constraints. | ||
| - **crit** (Optional): Specifies critical claims that must be understood and processed. | ||
| - **metadata_policy_crit** (Optional): Specifies critical metadata policy operators that must be understood and processed. | ||
| - **trust_marks** (Optional): Array of JSON objects, each representing a Trust Mark. | ||
| - **trust_mark_issuers** (Optional): Specifies trusted issuers of Trust Marks. | ||
| - **trust_mark_owners** (Optional): Specifies ownership of Trust Marks by different Entities. | ||
| - **source_endpoint** (Optional): URL to fetch the Entity Statement from the issuer. | ||
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| ### 4. Usage and Flexibility | ||
| - Entity Statements can include additional claims as required by applications and protocols. | ||
| - Metadata in Subordinate Statements overrides that in the Entity’s own configuration. |