HTW Berlin - Research Group
Security, Cryptography & Trusted Data Infrastructures for the Machine Service Economy
LED BY PROF. DR. ALEXANDRA MIKITYUK · HTW BERLIN
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Research Vision

A growing class of autonomous systems - vehicles, sensors, drones, robots, and AI agents - increasingly provides services, consumes services, and settles transactions with one another. These Machine Services introduce new requirements for security, identity, and data architectures: Who is the acting entity? Can the transmitted data be trusted? Is one machine authorized to act on behalf of another?

FUTURLAB studies the cryptographic, protocol, and systems foundations required to make identity, provenance, and integrity verifiable across machine-driven value chains - at a scale and speed where human verification is no longer feasible.

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Research Focus

01

Cryptographic Machine & Agent Identity

Device-bound keys, hardware roots of trust (TPMs, Secure Elements), certificate lifecycle management, and identity federation across edge, cloud, and on-chain systems.

02

Trusted Data Infrastructures

Signed and chained data streams, tamper-resistant telemetry, and audit trails for AI, compliance, and automated settlement.

03

Secure M2M & Agent-to-Agent Communication

End-to-end encrypted peer-to-peer protocols, mutual authentication, and scalable networking for large machine fleets.

04

Architectures for Autonomous Service Economies

Contract, settlement, and incentive mechanisms for Machine Services at the intersection of identity, decentralized settlement, and real-world service delivery.

05

Security of Agentic AI Systems

Hardening LLM- and MCP-based architectures against prompt injection, tool poisoning, and attacks in multi-agent environments.

06

Sovereign & Privacy-Preserving Architectures

Privacy-by-design, data residency, regulatory auditability, and decentralized architectures for critical infrastructure and industrial IoT.

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Flagship Project - RoboPay

Proof of Concept · Machine Economy Lab

RoboPay

Payment Infrastructure for AI Agents in the Physical World
RESEARCH TEAM · Yashdeep Singh · Kevin Ehrentraut · Xinyan Liu

RoboPay is payment infrastructure for AI agents in the physical world - a trustless payment layer for autonomous machines (robots, drones, delivery vehicles) that confirms real-world task completion (e.g. a physical delivery) and releases payment from a Solana escrow smart contract, with no human in the loop.

Industrial robotics is evolving from centrally controlled single machines into semi-autonomous fleets that accept tasks, consume resources, and deliver services. Economically they remain dependent: every settlement still needs a human to confirm it. The missing piece is not payment technology but evidence - machine-provable proof that a specific device actually performed a specific service, on untampered measurements. And as AI inference moves onto the device, the raw data never leaves it - so after-the-fact verification becomes structurally impossible. The trust anchor must move onto the machine itself.

The Proof of Concept

A small delivery robot (PiCar-X) uses an AI model to visually confirm a physical delivery (camera image + distance sensor) before autonomously releasing payment from a Solana escrow smart contract - proven with a working prototype and live Devnet transactions.

delivery_agent.py

The main reasoning loop - multi-step tool use across the robot's sensors: look at the camera, check distance, decide, confirm the delivery.

x402_verifier.py

An independent “second-opinion” service demonstrating the x402 machine-payment protocol combined with a separate AI check before release.

Comparing Payment-Release Triggers

A core research question: what should count as proof that a machine really completed its task? RoboPay benchmarks three trigger mechanisms for machine-to-machine settlement:

GPS

Location-based proof - the machine reached the delivery coordinates.

QR

Scan-based proof - a code confirmed at the point of handover.

AI-Agent

Vision-based proof - an agent visually verifies the delivery actually happened.

STATUS · Working prototype on real hardware (PiCar-X) with live Solana Devnet transactions - the escrow lock & release runs end to end. The AI-agent's vision-judgment is currently simulated (no live model key yet). Part of HTW Berlin's Machine Economy Lab · staex.io/research.
Research Questions
F1 · Evidence

How can an edge-AI model's output be attested so that model version, executing device, and result can later be conclusively linked?

F2 · Partition Tolerance

How can proof and settlement continue locally during network loss and reconcile consistently on reconnect?

F3 · Economic Agency

Which governance and authorization models let a machine trigger transactions under delegated budgets - including revocation and liability?

F4 · Cost of Trust

What compute, energy, and latency does continuous attestation impose on constrained hardware - and where is the limit of practicality?

Work Program

Why it's new: the contribution is not a single cryptographic primitive but the closed chain from sensor to settlement - tested under real industrial field conditions rather than in the lab. Unlike overlay networks (WireGuard, Tailscale, Nebula) that secure the transport, RoboPay secures the origin and integrity of the claim itself.

Team & Links
Kevin Ehrentraut
Founder & Technical Lead - IoT Hardware, Staex
Xinyan Liu
Hardware & Mechatronics - Industrial Engineering, HTW Berlin
Yashdeep Singh
Business & Market Research - Digital Business, BHT Berlin
Prof. Dr. Alexandra Mikityuk
Supervisor - HTW Berlin · FUTURLAB
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Consortium & Context

Scientific Lead

HTW Berlin - Cybersecurity

Attestation architecture, security analysis, and evaluation methodology. htw-berlin.de ↗

Technology Partner

Staex GmbH

Protocol stack, edge software, and field infrastructure for machine networks. staex.io ↗

Application Partners

Robotics & Fleet Operators

Real robotic fleets for field deployment and industrial evaluation.

REGULATORY DRIVERS - NIS2EU Data ActCyber Resilience ActeIDAS 2 · Machine Identity