Accountable Digital Identity Association (ADIA) Specification

The ADIA Specification establishes a foundational framework for creating trustable digital identities through a unique Digital Address system that enables identity management and accountability in the digital world. This specification defines how identities are created, verified, and used across a network of trusted providers.

Core components include:

• Digital Address: A human-readable identifier linked to cryptographic identifiers
• Trust Anchors: Unique identifiers for entities in the ecosystem
• Verifiable Credentials: Standards-based identity claims
• DID Documents: Technical specifications for identity verification

The system operates through several key entities:

• ADIA Global Directory: Root of trust system
• ADIA Regional Directories: Geographic/organizational directories
• Digital Address Services (DAS): Core service providers
• Issuers: Identity and credential providers
• Service Providers: Relying parties
• Users: Identity holders

Purpose and Scope:

• Creates a standardized framework for digital identity verification
• Enables privacy-preserving identity management
• Facilitates cross-border identity verification
• Supports both online and offline identity usage

Key Technical Specifications:

• Uses W3C Verifiable Credentials for identity claims
• Implements DIDComm messaging protocols
• Employs FIDO authentication standards
• Requires SHA-256/512 for cryptographic operations
• Supports Ed25519 and X25519 for signatures/encryption

Implementation Requirements:

• Directory Services must maintain distributed ledgers
• DAS must implement specified APIs and protocols
• Issuers must meet certification requirements
• All entities must support required cryptographic algorithms
• Systems must enable user consent and privacy controls

Security Considerations:

• Strong authentication using FIDO
• Encrypted communications using DIDComm
• Key protection requirements for all participants
• Audit trails for accountability
• Multi-level assurance framework

Interoperability Features:

• Standardized messaging protocols
• Common credential formats
• Cross-directory communication
• Unified trust framework
• Consistent API specifications

Current Adoption Status:

• Specification is in Editor's Draft stage
• Initial implementations being developed
• Certification framework established
• Governance structures defined

The specification represents a comprehensive approach to digital identity that balances security, privacy, and usability while enabling accountability across digital interactions.