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user-engine/docs/registration-scenario-and-security-conformance.md

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# Registration Scenario And Security Conformance
Status: implemented conformance slice
Date: 2026-06-15
Related workplan: USER-WP-0015
## Purpose
This slice turns the NetKingdom registration and onboarding roadmap into an
executable local conformance contract. It proves that the headless APIs and the
optional UI contract can complete the main registration journey, fail closed on
security negative paths, redact sensitive values, and exercise adapter seams
without production infrastructure.
## Scenario Matrix
The registration matrix is defined in `user_engine.testing.scenarios` as
`REGISTRATION_SCENARIO_MATRIX`.
It covers:
- self-registration;
- prepared account claim;
- privileged role requiring approval;
- eID-backed assurance;
- family invite;
- tenant admin invite;
- group access;
- denied cross-tenant claim.
The broader `SCENARIO_MATRIX` now also names registration/onboarding,
prepared-claim, group-access hat, denied cross-tenant claim, and UI workflow
coverage.
## End-To-End Conformance
`tests/test_registration_security_conformance.py` includes a full local flow:
```text
register application/catalog
prepare account with onboarding hint
complete email-backed registration
claim prepared account
select active hat
read claims projection and identity context
export access-control facts
render admin UI
assert onboarding event emission and redaction
```
This proves the path from registration through identity context, claims
enrichment, active access context, access fact export, onboarding, and UI
diagnostics.
## Security Negative Paths
The conformance suite exercises fail-closed behavior for:
- weak factor requirements;
- duplicate identity links;
- prepared-account hijack attempts;
- expired prepared claims;
- missing or cross-tenant context;
- privileged prepared roles requiring approval;
- stale approval through approval-required access profiles.
Denied prepared-account claim decisions leave audit evidence without creating
memberships for the attacker or emitting successful activation events.
## Redaction And Diagnostics
Conformance checks assert that these values do not leak through diagnostics,
events, or UI output:
- normalized factor values;
- email addresses used for prepared account matching;
- sensitive profile values;
- access profile claim/default values;
- proofing adapter secret input.
Sensitive profile values are redacted in runtime projections as
`<redacted>`.
## Adapter Conformance
The local adapter conformance path covers:
- factor verification adapter normalization;
- authorization harness request capture and obligations;
- access-control fact export;
- onboarding handoff lifecycle gaps and resume;
- audit record availability;
- outbox replay through pending events;
- in-memory durable-store rollback behavior in existing port tests.
No provider-specific IAM, eID, SMS, email, authorization-engine, notification,
or workflow infrastructure is required.
## Commands
```bash
make test
make test-conformance
```
The Makefile targets currently run the same standard-library test suite. They
remain separate entry points so CI can split unit, integration, scenario, and
conformance execution later.