IBA Architecture
Deep dive into the technical implementation of Intent-Based Access Control
System Architecture
Core Components
1. Intent Declaration Module
Captures AI action intent before execution and generates cryptographic hashes for validation. Supports structured intent schemas with type safety and validation.
2. Validation Engine
Sub-5ms runtime validation using optimized cryptographic verification and policy matching. Designed for high-throughput AI workloads.
- Parallel validation pipeline for low latency
- In-memory policy cache with LRU eviction
- Hardware-accelerated cryptographic operations
- Fallback to synchronous validation on cache miss
3. Blockchain Integration
Immutable audit trail using enterprise blockchain (Hyperledger Fabric or Ethereum private chain). Each validation creates a permanent record.
4. Kill Switch Mechanism
Automatic action termination on validation failure. Operates at machine speed without human intervention.
- Pre-execution hooks intercept all AI actions
- Fail-secure design: deny on validation timeout
- Configurable response policies (block, alert, log-only)
- Real-time alerting to security operations center
Performance Specifications
| Metric | Specification | Notes |
|---|---|---|
| Validation Latency (p50) | 3.2ms | Median case, hot cache |
| Validation Latency (p99) | 4.8ms | 99th percentile, includes cache misses |
| Throughput | 10,000 ops/sec | Per validation node |
| Hash Algorithm | SHA-256 | NIST-approved, hardware accelerated |
| Blockchain Finality | 2-5 seconds | Asynchronous, non-blocking |
| Audit Retention | Infinite | Blockchain-backed persistence |
Integration Patterns
Pattern 1: Pre-Execution Hook
Most common integration. IBA intercepts all AI actions before execution.
Pattern 2: Middleware Layer
For API-based AI systems, IBA operates as middleware in the request pipeline.
Pattern 3: Agentic Loop Integration
For autonomous agents, IBA validates each step in the reasoning loop.
Security Properties
Cryptographic Guarantees
IBA provides provable security properties through cryptographic validation and blockchain-backed audit trails.
- Tamper Resistance: Intent hashes use SHA-256, computationally infeasible to forge
- Replay Protection: Timestamps and nonces prevent intent replay attacks
- Audit Integrity: Blockchain ensures immutable, verifiable history
- Fail-Secure: System denies actions on validation failures or timeouts
- Defense in Depth: Multiple validation layers including policy, scope, and behavioral checks
Deployment Options
Cloud-Native Deployment
Containerized deployment on Kubernetes with horizontal scaling and high availability.
- Stateless validation nodes for elastic scaling
- Redis cluster for distributed policy cache
- Multi-region deployment with sub-10ms latency
- Prometheus metrics and Grafana dashboards
On-Premises Integration
Self-hosted deployment for air-gapped or highly regulated environments.
- Private blockchain network (Hyperledger Fabric)
- HSM integration for cryptographic key management
- LDAP/AD integration for identity management
- Compliance-ready logging and audit exports
Hybrid Architecture
Cloud-based validation with on-premises blockchain for maximum flexibility.
- Cloud validation for low latency
- On-prem blockchain for data sovereignty
- Encrypted cross-boundary communication
- Configurable data residency policies
Compliance & Standards
Regulatory Alignment
- EU AI Act: Cryptographic audit trails satisfy Article 12 (record-keeping) and Article 14 (human oversight)
- Taiwan AI Basic Act: Runtime validation addresses governance and accountability requirements
- SOC 2 Type II: Audit trail completeness and tamper-resistance
- ISO 27001: Access control and security monitoring
- GDPR: Right to explanation through intent transparency
Technical Standards
- NIST Cybersecurity Framework alignment
- OWASP ASVS Level 2 compliance
- OpenID Connect for authentication
- OAuth 2.0 for authorization
Patent Coverage
UK Patent Application GB2603013.0
Filed February 10, 2026 with priority date February 5, 2026. Covers the core innovation of cryptographic intent validation for AI systems.
Claims
- Method for cryptographic validation of AI action intent
- Sub-5ms runtime enforcement without human-in-the-loop
- Blockchain-backed audit trail generation
- Automatic kill switch on intent violation
- Integration patterns for agentic AI systems
International Expansion
Preparing PCT application for international protection in US, EU, China, and other jurisdictions. Patent strategy designed for maximum coverage of AI safety market.