summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
-rw-r--r--ma/safety_reset.tex15
1 files changed, 7 insertions, 8 deletions
diff --git a/ma/safety_reset.tex b/ma/safety_reset.tex
index 5314bac..bb0d46d 100644
--- a/ma/safety_reset.tex
+++ b/ma/safety_reset.tex
@@ -1046,8 +1046,7 @@ denial-of-service attacks on our system by any of the four attacker types. All r
from the \emph{reset authority} and are cryptographically secured to provide authentication and tamper detection.
Under this model, attacks on the electrical grid components between the \emph{reset authority} and the customer device
degrade into man-in-the-middle attacks. To ensure the \textsc{safety} criterion from Section \ref{sec_criteria} holds we
-must % TODO check whether this \ref displays as intended
-make sure our cryptography is secure against man-in-the-middle attacks and we must try to harden the system against
+must make sure our cryptography is secure against man-in-the-middle attacks and we must try to harden the system against
denial-of-service attacks by the attacker types listed above. Given our attacker model we cannot fully guard against
this sort of attack but we can at least choose a commmunication channel that is resilient against denial of service
attacks under the above model.
@@ -1623,6 +1622,7 @@ realistically be up to $\mathcal O\left(10^3\right)$, which is easily enough for
% FIXME here and in previous ~2 pages get transmitter/receiver and sender/listener terminology straight. Also perhaps do
% some sort of scenario definition introducing those terms somewhere.
+% Also sort out term for "safety reset controller" throughout document
\chapter{Practical implementation}
@@ -1737,12 +1737,11 @@ that more complex perform worse when the input signal deviates from their models
\subsection{Frequency sensor hardware design}
\label{sec-fsensor}
-Our safety reset controller % FIXME is this the right term?
-will have to measure mains frequency to later demodulate a reset signal transmitted through it. Since we have decided to
-do our own frequency measurement system here we can use this frequency measurement setup as a prototype for the
-frequency measurement subcomponent of the demodulation system we will later develop. Since we do not plan to do a
-large-scale field deployment of our measurement setup we can keep the hardware implementation simple by moving most of
-the signal processing to a regular computer and concentrating our hardware efforts on raw signal capture.
+Our safety reset controller will have to measure mains frequency to later demodulate a reset signal transmitted through
+it. Since we have decided to do our own frequency measurement system here we can use this frequency measurement setup as
+a prototype for the frequency measurement subcomponent of the demodulation system we will later develop. Since we do not
+plan to do a large-scale field deployment of our measurement setup we can keep the hardware implementation simple by
+moving most of the signal processing to a regular computer and concentrating our hardware efforts on raw signal capture.
\begin{figure}
\begin{center}