Zero Trust Architecture with Open Source Components Training Course

Fundamentals of Zero Trust

• The transition from perimeter-based defenses to Zero Trust paradigms
• Core tenets of Zero Trust: assume breach, verify explicitly, and enforce least privilege
• NIST SP 800-207 framework for Zero Trust Architecture
• Differentiating Zero Trust from traditional network security models
• Utilization of open-source ecosystems for Zero Trust deployment

Components of Zero Trust Architecture

• Establishing identity as the primary security boundary
• Validating device trust and compliance posture
• Implementing network and micro-segmentation strategies
• Securing application workloads
• Classifying and protecting sensitive data
• Defining policy decision and enforcement points

Identity Foundations for Zero Trust

• Identity providers including Keycloak, Authentik, and Dex
• Integration of OAuth 2.0, OIDC, and SAML protocols
• Implementation of multi-factor authentication (MFA)
• Risk-based authentication and step-up verification mechanisms
• Management of identity lifecycles
• Identity proofing and verification processes

Device Trust and Posture Validation

• Device enrollment and attestation procedures
• Compliance checking using tools such as Kolide and OSQuery
• Integration with endpoint detection and response (EDR) systems
• Certificate-based device authentication methods
• Integration with Mobile Device Management (MDM) for posture data
• Continuous assessment of device trustworthiness

Network-Level Zero Trust Implementation

• Concepts and principles of Software-Defined Perimeter (SDP)
• Open-source SDP implementations available for government use
• Micro-segmentation technologies including OVN, Cilium, and Calico
• Architecture of Zero Trust Network Access (ZTNA)
• Migration from traditional VPNs to zero trust access models
• Implementation of network policies as code

Identity-Aware Proxies and Access Gateways

• Pomerium architecture for identity-aware proxying
• vouch-proxy integration with nginx and Apache
• Deployment and configuration of OAuth2 Proxy
• Traefik implementation with forward authentication
• Kong Gateway integration with OIDC plugins
• Configuration and enforcement of access policies

Service Mesh for Zero Trust Environments

• Utilizing service mesh as a zero trust fabric
• Zero Trust configuration within Istio
• Secure deployment patterns using Linkerd
• Implementation of mutual TLS (mTLS) for service-to-service authentication
• SPIFFE/SPIRE for workload identity management
• Authorization policies within service mesh contexts
• Trust domains in multi-cluster service mesh architectures

Public Key Infrastructure and Certificate Management

• Certificate-based authentication within zero trust frameworks
• Smallstep CA for managing workload identities
• HashiCorp Vault PKI engine capabilities
• Automation of certificate rotation and lifecycle management
• Private Certificate Authorities (CA) for internal trust establishment
• Certificate transparency logs and monitoring

Secrets Management Systems

• HashiCorp Vault for enterprise secrets management
• Sealed Secrets implementation for Kubernetes environments
• External Secrets Operator integration
• SOPS (Secrets OPerationS) usage
• Dynamic secrets generation and automatic rotation
• Patterns for secure secret injection into applications

Policy as Code and Authorization Frameworks

• Fundamentals of Open Policy Agent (OPA)
• Basics of the Rego policy language
• OPA integration with Kubernetes admission control
• OPA usage with Envoy for service authorization
• Integration with API gateways via OPA
• Policy testing and validation methodologies
• Apache APISIX integration with OPA

API Security in Zero Trust Architectures

• Security patterns for API gateways
• Kong open-source implementation with security plugins
• Rate limiting and distributed denial-of-service (DDoS) mitigation
• Authentication and authorization mechanisms for APIs
• Security considerations for GraphQL implementations
• API discovery and detection of shadow APIs

Data Protection and Data Loss Prevention (DLP)

• Frameworks for data classification
• Open-source DLP tools and integration strategies
• Encryption standards for data in transit and at rest
• Strategies for tokenization and data masking
• Data loss prevention policy formulation
• Sovereign data handling requirements in zero trust contexts

Continuous Authentication and Authorization

• Session management within zero trust environments
• Mechanisms for continuous authentication
• Context-aware access decision-making
• Risk scoring and dynamic authorization adjustments
• Triggers for step-up authentication protocols
• Real-time policy enforcement capabilities

Monitoring and Observability in Zero Trust Systems

• Collection of security telemetry data
• Integration with Security Information and Event Management (SIEM) systems using open-source tools
• User and Entity Behavior Analytics (UEBA)
• Audit logging and compliance reporting requirements
• Anomaly detection utilizing machine learning algorithms
• Development of security dashboards and alerting mechanisms

Zero Trust for Cloud-Native Workloads

• Container security within zero trust frameworks
• Management of ephemeral workload identities
• Admission controllers for enforcing zero trust controls
• Runtime security monitoring with Falco and Tetragon
• Network policies for container segmentation
• Implementation of immutable infrastructure patterns

Zero Trust Implementation Roadmap

• Conducting maturity assessments and gap analyses
• Adopting a phased implementation approach
• Designing and executing pilot projects
• Managing change and driving user adoption
• Defining success metrics for zero trust initiatives
• Identifying challenges and avoiding common pitfalls

Production Deployment and Operational Practices

• High availability design patterns
• Disaster recovery planning for zero trust infrastructure
• Strategies for performance optimization
• Troubleshooting authentication and authorization failures
• Procedures for upgrading and patching components
• Documentation standards and runbook development

Future Directions for Zero Trust and Open Source Technologies

• Evolving standards and protocols relevant to government operations
• Considerations for quantum-safe zero trust mechanisms
• Integration of AI/ML in zero trust decision-making processes
• Federated zero trust architecture models
• Community resources and ongoing development trends
• Summary and recommended next steps