Zero Trust Engineering — Cross-boundary and external information exchange

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Data and information protection engineering reference for cross-boundary and external information exchange, including policy, logical interfaces, recovery and assurance.

Purpose: Cross-boundary and external information exchange. Domain: Data and information protection. Family: exchange. Scenario trigger: Send information across independent trust domains. Input assurance: Producer authenticity, recipient clearance and applicable agreements. Evaluation: Assess classification release, purpose and destination enforcement. Governing policy: Cross-domain release approval and audit policy. Resource-side obligation: Transfer approved information under verified receiver obligations. Protected concern: External organization information gateway. Logical interface: Sender recipient classification release decision obligations and receipt. Evidence: Release authorization recipient acknowledgement and exchange evidence. Failure: Untrusted recipient or prohibited handling downgrade. Required recovery: Abort transfer and request documented release decision. Architectural invariant: Cross-boundary exchange requires both source release and destination acceptance Adoption: replace reference roles with concrete owner-controlled services. Specify exact provider/consumer identities, schema fields and classifications, signal provenance and freshness, idempotency, authorization lifetime, timeout/retry limits, observation and tamper evidence. A denied or failed operation must not silently become a permitted one. Scope: original vendor-neutral, implementation-agnostic technical reference model. Illustrative logical components and behaviors are neither a deployed system nor evidence of regulatory compliance. Package identities remain stable within the package; cross-package semantic reconciliation requires separate explicit registry support.

Curated · other · unspecified · Published by Lattix · 29 elements · 34 relationships · validated on publish