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nb72soza Bittner
2025-05-20 15:27:22 +00:00
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Chapters/RelatedWork.tex
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@@ -27,9 +27,9 @@ The ecosystem surrounding \gls{esim} and \gls{euicc} technology is supported by
The \texttt{pySim} suite comprises five primary scripts: \texttt{pySim-shell}, \texttt{pySim-read}, \texttt{pySim-prog}, \texttt{pySim-trace}, and \texttt{pySim-smdpp}. Among these, \texttt{pySim-shell} is the core component, offering an interactive shell interface to navigate the \gls{sim} card file system and issue application-specific commands. It supersedes the legacy \texttt{pySim-read} script, which only supports a limited subset of shell commands and is primarily used to extract commonly accessed data fields from \gls{sim} cards.
The \texttt{pySim-trace} script provides a tracing utility and protocol decoder for SIM card-related communication. It integrates with \texttt{simtrace2} to intercept and decode communication between a user device and the \gls{sim} card. This functionality is limited to passive recording; it does not support active injection or modification of messages.
The \texttt{pySim-trace} script provides a tracing utility and protocol decoder for \gls{sim} card-related communication. It integrates with \texttt{simtrace2} to intercept and decode communication between a user device and the \gls{sim} card. This functionality is limited to passive recording; it does not support active injection or modification of messages.
The \texttt{pySim-smdpp} script serves as a proof-of-concept implementation of the SGP.22 \gls{smdpp} server component. Notably, \texttt{pySim} does not implement the full SGP.22 protocol stack on the client side (i.e., communication between the \gls{euicc} and the \gls{smdpp} server); its SGP.22 functionality is restricted to the server role only.
The \texttt{pySim-smdpp} script serves as a proof-of-concept implementation of the \gls{sgp22} \gls{smdpp} server component. Notably, \texttt{pySim} does not implement the full \gls{sgp22} protocol stack on the client side (i.e., communication between the \gls{euicc} and the \gls{smdpp} server); its \gls{sgp22} functionality is restricted to the server role only.
While \texttt{pySim} provides useful standalone utilities, its usability as a general-purpose library is limited. The internal architecture is not optimized for external scripting, requiring substantial effort to perform even basic tasks programmatically. As such, \texttt{pySim} is best suited for interactive use via its provided command-line tools rather than as a cleanly structured library for automation or integration.