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jaseg 2021-07-16 13:17:26 +02:00
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@ -80,10 +80,10 @@ this section with one half page of new content and one new diagram discussing fu
\paragraph{Comparison of IHSM attacks to those on traditional HSMs.}
In addition to the previous point, Reviewer~D pointed out that the discussion of attacks on IHSMs in our initial
submission would have benefited from a more thorough contextualization of the attacks possible on traditional HSMs. In
response, we have significantly extended Section~4 ``Attacks'' with one page of new content in two new Subsections~4.2
``Attacks that don't work'' and~4.3 ``Attacks that work on any HSM'' that provide this missing context to guide the
reader.
submission would have benefited from a more thorough contextualization of the attacks possible on traditional HSMs. We
wish to thank the reviewer for their thorough and thoughtful comments. In response to this suggestion, we have
significantly extended Section~4 ``Attacks'' with one page of new content in two new Subsections~4.2 ``Attacks that
don't work'' and~4.3 ``Attacks that work on any HSM'' that provide this missing context to guide the reader.
\paragraph{Notes on future work.}
@ -92,25 +92,26 @@ interesting. We have adressed this at the end of Section~7 ``Conclusion'' to the
\paragraph{Design Artifact Availability.}
Reviewer~D stated that acceess to design artifacts would be useful for readers of the paper. While we cannot make our
design artifacts available as part of the peer review process as they contain a multitude of references to the
identities of the authors and their employer, we have added a brief appendix that the publication version of our
paper will contain with a link to the open-source repository containing all hardware, software and paper sources
relating to our research project.
Reviewer~D stated that acceess to design artifacts would be useful for readers of the paper. We are thankful for their
interest in the results of our work. While we cannot make our design artifacts available as part of the peer review
process as they contain a multitude of references to the identities of the authors and their employer, we have added a
brief appendix that the publication version of our paper will contain with a link to the open-source repository
containing all hardware, software and paper sources relating to our research project.
\paragraph{Detailed discussion of contactless attacks.}
Reviewer~C noted that like a traditional HSM an IHSM cannot prevent contactless attacks such as electromagnetic
sidechannel attacks or laser fault injection. While our initial submission acknowledged this property of our design, our
original submission did not provide a detailed discussion of its extent. In our revised paper, we have added a new
Section~4.2 ``Attacks that work on any HSM'' that provides more detail on contactless attacks. In this section we
observe that the IHSM design allows for some mitigations against contactless attacks due to the physically larger space
it can provide to its payload.
sidechannel attacks or laser fault injection. We wish to express our gratitude for the insightful comment. While our
initial submission acknowledged this property of our design, our original submission did not provide a detailed
discussion of its extent. In our revised paper, we have added a new Section~4.2 ``Attacks that work on any HSM'' that
provides more detail on contactless attacks. In this section we observe that the IHSM design allows for some mitigations
against contactless attacks due to the physically larger space it can provide to its payload.
\paragraph{Justification of mesh monitor power consumption estimates.}
A point noted by Reviewers~A and~B is that in our initial submission we provided an estimate on the current consumption
of an IHSM monitoring cirucit without providing a detailed justification of our estimate. In response, we have extended
Section~5.3 ``Power transmission from stator to rotor'' with a more detailed justification of this estimate.
of an IHSM monitoring circuit without providing a detailed justification of our estimate. We wish to thank the reviewers
for thoughtfully pointing out this oversight. In response, we have extended Section~5.3 ``Power transmission from stator
to rotor'' with a more detailed justification of this estimate.
\end{document}