slides

4 files changed, 31 insertions, 10 deletions

diff --git a/presentation/pics/logo-bretagne.png b/presentation/pics/logo-bretagne.png
new file mode 100644
index 0000000..82ef02b
--- /dev/null
+++ b/presentation/pics/logo-bretagne.png
diff --git a/presentation/pics/logo-inria.png b/presentation/pics/logo-inria.png
new file mode 100644
index 0000000..80f6f2b
--- /dev/null
+++ b/presentation/pics/logo-inria.png
diff --git a/presentation/pics/logo-rff.png b/presentation/pics/logo-rff.png
new file mode 100644
index 0000000..1e13851
--- /dev/null
+++ b/presentation/pics/logo-rff.png
diff --git a/presentation/slides.tex b/presentation/slides.tex
index a2870cf..d52a2d8 100644
--- a/presentation/slides.tex
+++ b/presentation/slides.tex
@@ -82,13 +82,7 @@
 % The short title appears at the bottom of every slide, the full title is only on the title page
 \title[The GNU Taler System]{The GNU Taler System:  Practical and Provably Secure Electronic Payments}
 
-\author{Florian Dold} % Your name
-\institute[Inria] % Your institution as it will appear on the bottom of every slide, may be shorthand to save space
-{
-Inria \\ % Your institution for the title page
-\medskip
-\textit{dold@taler.net} % Your email address
-}
+\author[F. Dold]{Florian Dold \\ \textit{dold@taler.net}} % Your name
 
 \date{\today} % Date, can be changed to a custom date
 
@@ -101,9 +95,16 @@ Inria \\ % Your institution for the title page
 %\tableofcontents % Throughout your presentation, if you choose to use \section{} and \subsection{} commands, these will automatically be printed on this slide as an overview of your presentation
 %\end{frame}
 
+\titlegraphic{%
+ \includegraphics[width=2.5cm]{pics/logo-inria.png}\hspace*{2cm}~%
+ \includegraphics[width=1cm]{pics/logo-bretagne.png}\hspace*{2cm}~%
+ \includegraphics[width=2.5cm]{pics/logo-rff.png}
+}
+
 
 \begin{frame}
 \titlepage % Print the title page as the first slide
+
 \end{frame}
 
 \section{Introduction and Motivation}
@@ -177,9 +178,11 @@ Not all payment systems have the same requirements.  We want ours to
 Income-transparent online e-cash
 \begin{itemize}
   \item Extension and practical instantiation of (Chaumian) e-cash.
+  \pause
   \item Consideration of aborts, network failures, refunds, multi-coin
     payments, faults from wallet synchronization and their effects on anonymity;
-    showing the necessity of a refresh operation.
+    showing the practical necessity of a refresh operation.
+  \item
   \item Auditor component: Detection mechanism and responses to
     different compromise scenarios.
   \item Provisions against blackmailing / kidnapping scenarios.
@@ -275,7 +278,13 @@ Byzantine \emph{Set-Union} Consensus
         \item Hard to enforce
         \item Easy to do accidentally (failures / backups)
       \end{itemize}
-    \item Change/Divisibility \uncover<+->{$\Rightarrow$ Fixed denominations, change protocol}
+    \item Change/Divisibility \uncover<+->{$\Rightarrow$ Multiple fixed denominations, change protocol}
+      \begin{itemize}
+        \item Real divisibility nice in theory.
+        \item In practice:  complex, trusted setup, multiple withdraw ``sizes''
+          needed anyway
+        \item Fixed denominations shown to be efficient in spending simulation
+      \end{itemize}
     \item Transferability \uncover<+->{$\Rightarrow$ No!}
       \begin{itemize}
         \item Anti-feature, enables black markets / tax evasion!
@@ -484,8 +493,20 @@ No considerations of practical compromise.
 
   \pause
 
-  \begin{block}{Income Transparency}
+  \begin{block}{Strong Income Transparency}
+    Adversary can't obtain \textbf{exclusive} control of a coin,
+    without the exchange having a record (withdraw/spend) of the coin.
+  \end{block}
+
+  \pause
+  Strong Income Transparency is not satisfied by Taler!
+  \pause
+
+  \begin{block}{(Weak) Income Transparency}
+    Adversary can't obtain \textbf{exclusive} control of a coin,
+    without the exchange having a record (withdraw/spend) of the coin.
 
+    FIXME!!!
   \end{block}
 \end{frame}