WIA-SEC-009: Identity Management

Digital Identity & Access Management Standard

Implementation Guide (English)

弘益人間 (Hongik Ingan): "Technology should empower individuals with control over their digital identities while enabling secure, privacy-preserving access to services."

Introduction and Overview
Decentralized Identifiers (DID)
Verifiable Credentials
IAM System Integration
Authentication Protocols
User Provisioning with SCIM
Identity Federation & SSO
Implementation Guide
Security Best Practices
Real-World Case Studies

1. Introduction and Overview

What is WIA-SEC-009?

WIA-SEC-009 is a comprehensive standard for digital identity management and access control systems. It bridges the gap between traditional Identity and Access Management (IAM) systems and emerging decentralized identity technologies.

Key Features

🆔 DID Support W3C Decentralized Identifiers
🎫 Verifiable Credentials W3C VC data model
🔐 IAM Integration LDAP, Active Directory, Azure AD
🔄 SCIM 2.0 Automated user provisioning
🌐 SSO & Federation OAuth 2.0, OIDC, SAML 2.0
🛡️ Self-Sovereign Identity User-controlled credentials
📱 Multi-Factor Auth Enhanced security
🔒 Privacy-Preserving Zero-knowledge proofs

Why Identity Management Matters

In today's interconnected digital world, identity is the foundation of security, privacy, and trust. Organizations need robust identity management systems that:

Verify user identities with high confidence
Control access to resources and data
Enable seamless user experiences across systems
Protect user privacy and comply with regulations (GDPR, CCPA)
Prevent identity fraud and unauthorized access

2. Decentralized Identifiers (DID)

What is a DID?

A Decentralized Identifier (DID) is a globally unique identifier that enables verifiable, decentralized digital identity. Unlike traditional identifiers (email, username), DIDs are:

Self-sovereign: Users control their own identifiers
Decentralized: No central authority required
Persistent: Remain valid across systems and time
Resolvable: Can be looked up to get associated information
Cryptographically verifiable: Backed by public key cryptography

DID Syntax

A DID follows this format:

did:<method>:<method-specific-identifier>

Examples:
did:web:example.com:users:alice
did:key:z6MkhaXgBZDvotDkL5257faiztiGiC2QtKLGpbnnEGta2doK
did:ethr:0x3b0BC51Ab9De1e5B7B6E34E5b960285805C41736
did:ion:EiClkZMDxPKqC9c-umQfTkR8vvZ9JPhl_xLDI9Nfk38w5w

Common DID Methods

Method	Description	Use Case
did:web	Based on web domains	Easy adoption for existing web infrastructure
did:key	Based on cryptographic keys	Simple, stateless, offline-first
did:ethr	Ethereum blockchain	Smart contract integration
did:ion	Bitcoin + IPFS (Sidetree)	Scalable, decentralized

DID Documents

A DID Document contains:

Verification Methods: Public keys for authentication
Authentication: Methods for proving control
Service Endpoints: Where to interact with the identity
Key Agreement: Keys for encryption

3. Verifiable Credentials

Understanding Verifiable Credentials

Verifiable Credentials (VCs) are cryptographically secure, privacy-respecting digital credentials. They enable:

Issuers: Organizations that issue credentials (universities, governments, employers)
Holders: Individuals who receive and control credentials
Verifiers: Organizations that verify credentials (employers, services)

VC Data Model

A Verifiable Credential contains:

Metadata: Type, issuer, issuance date, expiration
Claims: Statements about the credential subject
Proofs: Cryptographic signatures

Benefits of Verifiable Credentials

✅ Tamper-evident: Cryptographic proofs detect alterations
✅ Privacy-preserving: Selective disclosure, zero-knowledge proofs
✅ Portable: Work across systems and organizations
✅ Machine-verifiable: Automated verification without human intervention
✅ Revocable: Issuers can revoke when necessary

4. IAM System Integration

LDAP Integration

Lightweight Directory Access Protocol (LDAP) is widely used for centralized identity management. WIA-SEC-009 provides:

Standard LDAP schema extensions for DIDs and VCs
Attribute mapping for interoperability
Authentication delegation
User synchronization protocols

Active Directory Integration

Microsoft Active Directory (AD) integration includes:

Custom AD schema attributes
Azure AD connector
Group-based access control mapping
Hybrid identity scenarios

Modern IAM Platforms

Integration with cloud IAM platforms:

Okta: User provisioning, SSO, API integration
Auth0: Social login, MFA, custom rules
Azure AD: Microsoft Graph API, Conditional Access
Google Workspace: Directory API, OAuth 2.0

5. Authentication Protocols

DID Authentication (DID-Auth)

Authenticate using DIDs and cryptographic proofs:

Service sends authentication challenge
User signs challenge with private key
Service verifies signature using DID document
Access granted upon successful verification

OAuth 2.0 & OpenID Connect

Modern authentication flows:

Authorization Code Flow: Web applications
PKCE: Mobile and SPA security
Client Credentials: Service-to-service
Device Code: Input-constrained devices

Multi-Factor Authentication

Supported MFA methods:

📱 TOTP: Time-based one-time passwords (Google Authenticator, Authy)
📧 Email OTP: One-time codes via email
💬 SMS OTP: Text message codes
🔐 WebAuthn: Biometrics, security keys (FIDO2)
📲 Push Notifications: Mobile app approval

6. User Provisioning with SCIM

What is SCIM?

System for Cross-domain Identity Management (SCIM) 2.0 enables automated user lifecycle management:

Provisioning: Create users automatically
Deprovisioning: Remove access when users leave
Synchronization: Keep attributes in sync across systems
Group Management: Manage group memberships

SCIM Operations

Operation	HTTP Method	Description
Create User	POST	Provision new user account
Get User	GET	Retrieve user details
Update User	PUT / PATCH	Modify user attributes
Delete User	DELETE	Remove user account
Search Users	GET with filter	Query users by attributes

7. Identity Federation & SSO

Single Sign-On (SSO)

SSO allows users to authenticate once and access multiple applications:

Improved user experience
Reduced password fatigue
Centralized access control
Simplified audit and compliance

Federation Protocols

SAML 2.0: Enterprise SSO standard
OpenID Connect: Modern, API-friendly
OAuth 2.0: Delegated authorization

Trust Models

Federation requires trust between Identity Providers (IdP) and Service Providers (SP):

Direct Trust: Bilateral agreements
Federation Hub: Central trust broker
Web of Trust: Distributed trust (DID-based)

8. Implementation Guide

Getting Started

Assess Requirements: Identify identity needs, compliance requirements
Choose Architecture: Centralized, federated, or hybrid
Select Technologies: DID methods, credential formats, IAM platforms
Design Workflows: Registration, authentication, provisioning
Implement Security: MFA, encryption, key management
Test & Validate: Security testing, user acceptance testing
Deploy & Monitor: Gradual rollout, audit logging

Reference Implementation

WIA provides reference implementations in multiple languages:

TypeScript/Node.js
Python
Java/Spring Boot
.NET/C#
Go

9. Security Best Practices

🔐 Use strong cryptography: Ed25519, ECDSA (P-256), RSA (2048+ bits)
🔑 Secure key storage: Hardware security modules (HSM), key vaults
🛡️ Implement MFA: Require multi-factor authentication for sensitive operations
📊 Audit everything: Comprehensive logging of identity events
⏰ Rotate credentials: Regular key rotation, credential expiration
🔒 Principle of least privilege: Grant minimum necessary permissions
🚫 Zero trust: Never trust, always verify
📜 Privacy by design: Data minimization, selective disclosure

10. Real-World Case Studies

Case Study 1: Global Enterprise SSO

Challenge: Large corporation with 50,000 employees across multiple continents needed unified identity management.

Solution: Implemented WIA-SEC-009 with Azure AD integration, SAML SSO, and SCIM provisioning.

Results:

✅ 90% reduction in password reset tickets
✅ Automated provisioning reduced onboarding time from 2 days to 2 hours
✅ Improved security with mandatory MFA

Case Study 2: Healthcare Credential Verification

Challenge: Healthcare network needed to verify medical licenses and certifications across hospitals.

Solution: Implemented Verifiable Credentials for medical licenses, integrated with state licensing boards.