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docs/platform-services/authentication-authorization/README.md

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+# Authentication & Authorization
+
+## Overview
+The Authentication & Authorization service will provide comprehensive security controls for the stock-bot platform. It will manage user identity, authentication, access control, and security policy enforcement across all platform components, ensuring proper security governance and compliance with regulatory requirements.
+
+## Planned Features
+
+### User Management
+- **User Provisioning**: Account creation and management
+- **Identity Sources**: Local and external identity providers
+- **User Profiles**: Customizable user attributes
+- **Group Management**: User grouping and organization
+- **Account Lifecycle**: Comprehensive user lifecycle management
+
+### Authentication
+- **Multiple Factors**: Support for MFA/2FA
+- **Single Sign-On**: Integration with enterprise SSO solutions
+- **Social Login**: Support for third-party identity providers
+- **Session Management**: Secure session handling and expiration
+- **Password Policies**: Configurable password requirements
+
+### Authorization
+- **Role-Based Access Control**: Fine-grained permission management
+- **Attribute-Based Access**: Context-aware access decisions
+- **Permission Management**: Centralized permission administration
+- **Dynamic Policies**: Rule-based access policies
+- **Delegated Administration**: Hierarchical permission management
+
+### Security Features
+- **Token Management**: JWT and OAuth token handling
+- **API Security**: Protection of API endpoints
+- **Rate Limiting**: Prevention of brute force attacks
+- **Audit Logging**: Comprehensive security event logging
+- **Compliance Reporting**: Reports for regulatory requirements
+
+## Planned Integration Points
+
+### Service Integration
+- All platform microservices
+- API Gateway
+- Frontend applications
+- External systems and partners
+
+### Identity Providers
+- Internal identity store
+- Enterprise directory services
+- Social identity providers
+- OAuth/OIDC providers
+
+## Planned Technical Implementation
+
+### Technology Stack
+- **Identity Server**: Keycloak or Auth0
+- **API Protection**: OAuth 2.0 and OpenID Connect
+- **Token Format**: JWT with appropriate claims
+- **Storage**: Secure credential and policy storage
+- **Encryption**: Industry-standard encryption for sensitive data
+
+### Architecture Pattern
+- Identity as a service
+- Policy-based access control
+- Token-based authentication
+- Layered security model
+
+## Development Guidelines
+
+### Authentication Integration
+- Authentication flow implementation
+- Token handling best practices
+- Session management requirements
+- Credential security standards
+
+### Authorization Implementation
+- Permission modeling approach
+- Policy definition format
+- Access decision points
+- Contextual authorization techniques
+
+### Security Considerations
+- Token security requirements
+- Key rotation procedures
+- Security event monitoring
+- Penetration testing requirements
+
+## Implementation Roadmap
+1. Core user management and authentication
+2. Basic role-based authorization
+3. API security and token management
+4. Advanced access control policies
+5. Compliance reporting and auditing