AirBorn Designers of Microprocessor Electronics

Key Scan Analyzer

  • Proof of concept keyscan monitoring device for eftpos terminal

  • Monitors keyscans and reports back to host computer

  • Designed to show a possible malicious attack, and prompt search for alternatives

Ex Witham Laboratories - Now public domain
Client
Ex Witham Laboratories - Now public domain
Project (Short name: keyscan1)
Key Scan Analyzer
Project Status
Design work Complete
PCB Number
AB9810768
Version Date
10 Oct 1998

Circuit Diagram

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Circuit diagram

Bill of materials

Parts list and notes

Key Scan Analyzer Bill Of Materials

PCB design


PCB size H WH x W
Metric63.5mm62.2mm3952mm2
Inches2.500in2.450in6.12in2
Corner
holes		55.9mm54.6mm
Diameter of holes: 3.4mm
Total
holes		1705 sizes >=0.71mm
PCB overlay image
Click for Layer key

Firmware

Software for the target PCB

Key Scan Analyzer Firmware image

Proof of Concept Firmware

KEYSCAN1.ASM

Documentation package

Key Scan Analyzer Documentation (PDF)
Design Copyright

  (may be assigned)

©10 Oct 1998 AirBorn Electronics Pty Ltd

©2025 AirBorn - Last updated 22 September 2025

Background Image Credit: NGC 3603: From Beginning To End : Wolfgang Brandner (JPL/IPAC), Eva K. Grebel (U. Wash.), You-Hua Chu (UIUC),NASA