Assurance design for services
Each service is matched with an identity assurance level according to its risk, so that authentication is strong enough to prevent fraud without excluding people unnecessarily.
GCRI · Digital Public Infrastructure
Digital identity and public digital systems is the technology this platform stewards for the network. It covers how identity is established, credentials issued and verified, and authentication performed, with privacy, inclusion and assurance designed in.
Digital identity and public digital systems provide the means for people and organisations to prove who they are and access services online. They underpin social protection, financial inclusion and emergency assistance. In digital public infrastructure and cyber and digital resilience, digital identity systems determine how quickly aid and payments reach people after shocks. Their failure or misuse can amplify social and economic harm. The canonical description is on the STEM Commons.
Each service is matched with an identity assurance level according to its risk, so that authentication is strong enough to prevent fraud without excluding people unnecessarily.
Credentials such as qualifications or licences are issued in standard formats that holders can present and verifiers can check cryptographically, sharing only needed attributes.
Enrolment and authentication failures are analysed by group to find people excluded by documents, biometrics or connectivity, and alternatives are designed.
The screen a team would use to follow this method: its measures, states and decisions. Names are examples and values are illustrative.
Digital public infrastructure · Digital identity engineering · Run R-2631
| Weak key rotation | Identity service | High | PR.AA | Open |
| Unpatched gateway | Edge | High | PR.PS | Fixing |
| Logging gap | Payments API | Medium | DE.CM | Open |
| Stale accounts | Directory | Low | PR.AA | Closed |
Datasets and records used by digital identity and public digital systems on this platform, with the role each plays and the label its values carry. Sources are listed in the source register.
| Data | Role | Label |
|---|---|---|
| Identity system enrolment records | Coverage | Published statistics |
| Authentication logs | Failure rates | OBSERVED |
| Household surveys | Exclusion | REPORTED |
The model, its assumptions, its data and its uncertainty, in the form a scientist or engineer would check. Structures follow published methods. The values drawn are illustrative, not findings.
The data classes behind digital identity engineering and what is recorded about each before it is used.
| Data class | Provenance recorded | Resolution stated | Licence checked |
|---|---|---|---|
| Satellite imagery, optical and radar | sensor, processing level, acquisition date | pixel size and revisit | per scene |
| Reanalysis and climate model output | model, experiment, member, version | grid and time step | per release |
| In-situ sensors and gauges | station, instrument, calibration record | point and sampling rate | per network |
| Population and asset exposure | method, vintage, input sources | cell size and unit | per release |
| Boundaries and reference geography | producer, edition, date | scale | per edition |
Systems are tested for accuracy of matching, resistance to fraud and accessibility. Independent audits review privacy and security controls.
| Check | How it is done |
|---|---|
| Assurance mapping review | Assurance levels are reviewed against service risk |
| Privacy impact assessment | Identity designs undergo privacy impact assessment |
| Disaggregated failure analysis | Failure rates are reported by group |
Exclusion errors can deny services to vulnerable groups. Centralised systems create attractive targets and single points of failure.
Process explorer · Process
8 steps·4 stages·1 gate
Process
CSF 2.0 has six Functions to address concurrently, in no implied order; this walk-through picks outcomes from Detect, Respond, Recover, Identify and Govern.
Neutral outline of a published external standard or method, from its issuing body. Not a record of operation. Nexus does not perform, certify or approve any step shown. A gate or decision belongs to the party the source names. The six Functions are Govern, Identify, Protect, Detect, Respond and Recover.
Digital Public Infrastructure stewards digital identity and public digital systems for the Consortium and reviews how it is applied across platforms.
Reports is the Consortium's quarterly publication. What you know about this subject can become evidence, a case or a correction in the next edition, credited to you and published under CC BY 4.0 where it is your own work.
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