The OpenID Foundation has opened a formal vote on the proposed Implementer’s Draft of OpenID Connect Advanced Syntax for Claims (ASC) 1.0, a specification that defines how relying parties can request specific identity claims from OpenID Providers using structured query syntax.
The vote, open to OpenID Foundation members, will determine whether the specification advances to Implementer’s Draft status, a milestone that signals the specification is ready for trial implementations and interoperability testing.
OpenID Connect ASC 1.0 extends the existing OpenID Connect framework by providing a more expressive syntax for requesting identity claims. The specification enables relying parties to define precise requirements for the claims they need, including constraints on claim values, formats, and assurance levels. This is particularly relevant for digital identity ecosystems that require fine-grained control over attribute exchange.
The specification is designed to support use cases in regulated industries, government digital identity programs, and cross-border identity frameworks where the structure and assurance level of identity claims must meet specific technical and policy requirements.
OpenID Connect is one of the most widely deployed identity protocols globally, underpinning authentication and identity exchange across enterprise, consumer, and government applications. The Foundation has been expanding its conformance certification program to meet growing demand from regulated industries. The ASC extension adds capabilities that are increasingly needed as digital identity ecosystems become more complex and interoperable.
The OpenID Foundation’s voting process for Implementer’s Drafts typically runs for a defined period, after which the specification is either approved, revised, or returned for further development. Approved Implementer’s Drafts carry intellectual property protections for implementers under the Foundation’s licensing framework.
The ASC specification is part of a broader set of OpenID Connect extensions under active development, including specifications for verifiable credentials and identity assurance.
Sources: OpenID Foundation
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By Ji-seo Kim
