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Secure Additive Manufacturing Process Chain

Secure Additive Manufacturing Process Chain

Supervisor(s): Nikolai Puch
Status: finished
Topic: Others
Author: Stefan Dopfer
Submission: 2024-12-16
Type of Thesis: Bachelorthesis
Thesis topic in co-operation with the Fraunhofer Institute for Applied and Integrated Security AISEC, Garching

Description

Additive Manufacturing (AM), also known as 3D printing, is a modern Industry.4.0 technology. It is highly 
customizable and allows an on-demand production of complex and high-quality parts while generating little 
waste. However, cyber-physical attacks on AM threaten manufactured parts and their environment. This thesis 
introduces threat categories and derives requirements to secure the AM process chain against those threats. 
To fulfil the requirements multiple defensive measures are proposed. The concept utilizes an online 3D design 
marketplace to distribute digital design files. It integrates a Public Key Infrastructure (PKI) into the process chain 
and shows how AM related files can be protected. Furthermore, this thesis provides an implementation as a prove 
of concept. It demonstrates how AM can be secured throughout its individual steps. The implementation ensures 
the confidentiality and integrity of design files, by extending the popular softwares UltiMaker Cura and OctoPrint 
with plugins that enable the import and export of signed and encrypted files.