20 lines
2 KiB
TeX
20 lines
2 KiB
TeX
\chaptertitle{Conclusion}
|
|
|
|
In this thesis, we proposed Inertial Hardware Security Modules (IHSMs), a completely new approach to physical security
|
|
that combines conventional tamper-sensing meshes with physical movement to bootstrap a highly secure system from
|
|
low-security, off-the-shelf parts. To motivate our research, we showed on the German national digital health record
|
|
system how hardware security is hard to achieve in practice. Besides some minor cryptographic oddities, our analysis
|
|
revealed at least one essential specification mistake that negates the hardware security of the system by unnecessarily
|
|
introducing a poorly protected HSM. In the following chapters, we first introduced IHSM technology, then provided deep
|
|
analyses of two of its engineering challenges, mesh monitoring and power transfer. We propose a low-cost TDR-based mesh
|
|
monitoring system that exceeds the capabilities of all previous systems from academic or from patent literature by
|
|
monitoring large meshes while simultaneously providing detailed results. Our TDR-based mesh monitoring system is of
|
|
independent interest, since it can also be integrated into traditional HSM designs. Besides improved mesh monitoring, we
|
|
also proposed a new, generalized design for high-frequency PCB inductors with low parasitic capacitance. Our design
|
|
provides better bandwidth and lower parasitic capacitance compared to the state of the art without increasing
|
|
implementation cost. We concluded our thesis with two chapters elaborating on two new use cases that are made possible
|
|
by IHSM technology due to its ability to protect large payloads that have high power consumption.
|
|
|
|
We believe that with the research presented in this thesis, we substantially advanced the physical security field. In
|
|
particular, we belive that by publishing our research including its artifacts under open-source licenses, we provide the
|
|
basis for future research in tamper-sensing technology, a field that remains under-served in today's academic landscape.
|