Overview
ISO/IEC 25831-1:2026, Information technology - OpenID identity assurance 1.0 - Part 1: General, defines the technical mechanisms that enable a relying party (RP) to request one or more verified claims about an end-user from an OpenID provider (OP). This international standard defines the foundational tools for identity assurance in digital ecosystems, supporting use cases that require strong assurance, risk mitigation, fraud prevention, or regulatory compliance (such as anti-money laundering).
The document is focused on technical processes and intentionally excludes legal, commercial, and trust-framework aspects, leaving such topics to deployment-specific adjustments. However, the specification is designed for flexibility and global interoperability, enabling adaptation to varying legal and commercial requirements across jurisdictions.
Key Topics
- Verified Claims: Standardized mechanisms for RPs to request and receive identity claims that have been verified by an OP.
- Assurance Metadata: RPs receive not just identity claims, but also metadata and evidence about the verification process, including which trust framework was used.
- Claims Schema: Use of a container element (
verified_claims) in OpenID Connect responses clearly delineates verified claims from unverified ones.
- Data Minimization and Flexibility: RPs can request only the minimum necessary data, ensuring privacy and compliance with data protection principles.
- Extensibility: The format is extensible, allowing implementers to support diverse trust frameworks and verification methods.
- Aggregated and Distributed Claims: Support for claims sourced from external authorities in addition to those provided directly by the OP.
- Interoperability: Compatible with existing OpenID Connect claims and extensible with additional specifications and trust frameworks.
Applications
ISO/IEC 25831-1:2026 is applicable wherever digital identity assurance is required. Its technical framework ensures reliable information about end-users, critical for:
- Regulatory Compliance: Financial services, healthcare, government portals, and others requiring strong identity proofing, such as complying with eIDAS, Anti-Money Laundering (AML), or national health data access requirements.
- Fraud Prevention and Risk Mitigation: Online services mitigating identity-related risks by verifying user claims such as name, birthdate, or address with high assurance.
- Global Digital Services: Cross-border use where identity frameworks and trust requirements vary by country or sector.
- Interoperable Identity Platforms: Vendors and organizations looking to implement interoperable, consistent processes on top of OpenID Connect with enhanced identity assurance.
Practical Use Cases
- Banking and Finance: Verifying customer identity for account creation or transactions, with metadata about the verification process to satisfy compliance needs.
- Healthcare: Ensuring only verified individuals can access personal health data or services, with details on how verification was performed.
- eGovernment: Enabling citizens to prove their identity online for digital public services, with claims based on nationally approved trust frameworks.
Related Standards
- OpenID Connect Core 1.0: The core authentication protocol for federated identity, which ISO/IEC 25831-1 extends for verified claims.
- RFC 7519 (JSON Web Token - JWT): Token format used for transporting identity and verification data securely.
- OIDC Identity Assurance 1.0 Predefined Identifier Values: Additional guidance for specific claim values and trust framework identifiers.
- ISO/IEC 29115: Provides assurance framework references.
- eIDAS Regulation (EU Regulation No 910/2014): While not a standard, eIDAS compliance is a key anticipated use case.
ISO/IEC 25831-1:2026 underpins secure digital identity ecosystems by establishing global best practices for identity assurance over OpenID. Its technical focus ensures high interoperability, privacy, and adaptability for organizations operating in regulated or high-trust online environments. Adopting this standard supports digital transformation initiatives across industries, offering a clear pathway to robust, standardized identity assurance.