diff options
Diffstat (limited to 'slides/2021-swits')
22 files changed, 708 insertions, 0 deletions
diff --git a/slides/2021-swits/README b/slides/2021-swits/README new file mode 100644 index 0000000..07de40e --- /dev/null +++ b/slides/2021-swits/README @@ -0,0 +1,2 @@ +My talk at SWITS, a conference for (mostly) academics in Sweden that are working +on privacy and security. diff --git a/slides/2021-swits/beamercolorthemergd.sty b/slides/2021-swits/beamercolorthemergd.sty new file mode 100644 index 0000000..74ced1c --- /dev/null +++ b/slides/2021-swits/beamercolorthemergd.sty @@ -0,0 +1,24 @@ +\mode<presentation> + +%%% +% Color definitions +%%% +\RequirePackage{xcolor} +\definecolor{rgdGreen}{RGB}{33,114,106} +\definecolor{rgdYellow}{RGB}{255,210,4} +\definecolor{rgdOrange}{RGB}{232,114,12} +\colorlet{rgdGray}{gray!33} +\colorlet{rgdBlack}{black} + +%%% +% Beamer colors +%%% +\setbeamercolor*{titlepage}{fg=rgdBlack} +\setbeamercolor*{author}{fg=rgdGreen} +\setbeamercolor*{date}{fg=black} +\setbeamercolor*{header}{bg=rgdYellow,fg=black} +\setbeamercolor*{trailer}{bg=rgdGray,fg=black} +\setbeamercolor*{item}{fg=rgdGreen} +\setbeamercolor*{alerted text}{fg=rgdGreen} + +\mode<all> diff --git a/slides/2021-swits/beamerfontthemergd.sty b/slides/2021-swits/beamerfontthemergd.sty new file mode 100644 index 0000000..a6d212c --- /dev/null +++ b/slides/2021-swits/beamerfontthemergd.sty @@ -0,0 +1,9 @@ +\mode<presentation> + +\setbeamerfont{title}{size=\large,shape=\bfseries} +\setbeamerfont{subtitle}{size=\normalsize,shape=\bfseries} +\setbeamerfont{frametitle}{size=\large,shape=\bfseries} +\setbeamerfont{institute}{size=\small} +\setbeamerfont{date}{size=\small} + +\mode<all> diff --git a/slides/2021-swits/beamerinnerthemergd.sty b/slides/2021-swits/beamerinnerthemergd.sty new file mode 100644 index 0000000..b96a415 --- /dev/null +++ b/slides/2021-swits/beamerinnerthemergd.sty @@ -0,0 +1,49 @@ +\mode<presentation> + +%%% +% Title page +%%% +\defbeamertemplate*{title page}{rgd}[1][]{ + \begin{tikzpicture}[remember picture, overlay] + \usebeamercolor{titlepage} + % Add top-left triangle with university logo + \filldraw[draw=rgdGray,fill=rgdGray] + (current page.north west) -- + (current page.north) -- + node[draw=none,pos=0.5](LogoMul){\includegraphics[width=3.5cm]{img/mullvad}} + (current page.west) -- + (current page.north west); + \filldraw[draw=rgdGray,fill=rgdGray] + (current page.north east) -- + (current page.north) -- + node[draw=none,pos=0.5](LogoKau){\includegraphics[width=3cm]{img/kau}} + (current page.east) -- + (current page.north east); + % Add title + \node[ + text=fg, + text width=0.75\paperwidth, + ] (Title) at ([shift={(0,-0.5cm)}]current page){% + \centering\usebeamerfont{title}\inserttitle\\% + }; + % Add date + \node[ + text=fg, + text width=0.75\paperwidth, + below=0pt of Title, + ] (Subtitle) {% + \centering\usebeamerfont{date}\today\\% + }; + % Add authors + \usebeamercolor{author} + \node[ + text=fg, + text width=0.75\paperwidth, + below=0pt of Subtitle, + ] (Author) {% + \centering\usebeamerfont{author}\insertauthor\\% + }; + \end{tikzpicture} +} + +\mode<all> diff --git a/slides/2021-swits/beamerouterthemergd.sty b/slides/2021-swits/beamerouterthemergd.sty new file mode 100644 index 0000000..45ba820 --- /dev/null +++ b/slides/2021-swits/beamerouterthemergd.sty @@ -0,0 +1,71 @@ +\mode<presentation> + +%%% +% Frame header +%%% +\defbeamertemplate*{frametitle}{corporate}[1][]{% + \nointerlineskip + % Add frame title + \begin{beamercolorbox}[ + wd=\paperwidth, + ht=3ex, + dp=1.5ex, + left, + leftskip=2ex + ]{header} + \insertframetitle + \end{beamercolorbox} + % Add line after header + \nointerlineskip + \begin{beamercolorbox}[ + wd=\paperwidth, + ht=0.25ex + ]{trailer} + \end{beamercolorbox}% +} + +%%% +% Frame trailer +%%% +\defbeamertemplate*{footline}{corporate}{% + \hbox{% + % Add metadata + \begin{beamercolorbox}[ + wd=0.50\paperwidth, + ht=2ex, + dp=0.5ex, + left, + leftskip=2ex + ]{trailer} + \href{https://rgdd.github.io}{rgdd.github.io} + $\cdots$ + \href{https://twitter.com/\_\_rgdd}{@\_\_rgdd} + $\cdots$ + \href{mailto:rasmus@mullvad.net}{rasmus@mullvad.net} + $\cdots$ + \href{mailto:rasmus.dahlberg@kau.se}{rasmus.dahlberg@kau.se} + \end{beamercolorbox}% + % Add title + \begin{beamercolorbox}[ + wd=0.45\paperwidth, + ht=2ex, + dp=0.5ex, + left, + leftskip=2ex + ]{header} + \inserttitle + \end{beamercolorbox}% + % Add page counter + \begin{beamercolorbox}[ + wd=0.05\paperwidth, + ht=2ex, + dp=0.5ex, + right, + rightskip=1ex + ]{header} + \insertframenumber/\inserttotalframenumber + \end{beamercolorbox}% + } +} + +\mode<all> diff --git a/slides/2021-swits/beamerthemergd.sty b/slides/2021-swits/beamerthemergd.sty new file mode 100644 index 0000000..022ef2c --- /dev/null +++ b/slides/2021-swits/beamerthemergd.sty @@ -0,0 +1,23 @@ +\mode<presentation> + +%%% +% Load beamer settings +%%% +\usecolortheme{rgd} +\usefonttheme{rgd} +\useinnertheme{rgd} +\useoutertheme{rgd} + +%%% +% Disable navigation tools on slides +%%% +\setbeamertemplate{navigation symbols}{} + +%%% +% Object styles +%%% +\setbeamertemplate{itemize item}[square] +\setbeamertemplate{itemize subitem}[default] +\setbeamertemplate{sections/subsections in toc}[square] + +\mode<all> diff --git a/slides/2021-swits/handout.pdf b/slides/2021-swits/handout.pdf Binary files differnew file mode 100644 index 0000000..93ac3ca --- /dev/null +++ b/slides/2021-swits/handout.pdf diff --git a/slides/2021-swits/img/after.tex b/slides/2021-swits/img/after.tex new file mode 100644 index 0000000..c2af725 --- /dev/null +++ b/slides/2021-swits/img/after.tex @@ -0,0 +1,70 @@ +\begin{tikzpicture}[ + -latex, + entity/.style = { + draw = gray!30, + thick, + rounded rectangle, + fill = white, + minimum width = 2cm, + font = \fontsize{8}{8}\selectfont, + text = white, + }, + relation/.style = { + draw = none, + font = \fontsize{6}{6}\selectfont, + }, + path/.style = { + draw, + thick, + -latex, + }, +] + \node[entity, fill=darkBlue] (Publisher) at (0,0) { Publisher }; + \node[entity, fill=darkGreen, below=1.5cm of Publisher] (EndUser) {End-user}; + \node[entity, fill=darkOrange, left=1.5cm of Publisher] (Log) {Log}; + \node[entity, fill=darkRed, below=1.5cm of Log] (Witness) {Witness}; + + % Key setup + \path[path, dashed] ($ (EndUser) + (2,0) $) -- + node[relation, above] { Public keys } + (EndUser); + % Get data and signature + \path[path] (Publisher) -- + node[relation, right] { + \begin{tabular}{c} + Opaque data\\ + Signature\\ + Proofs of logging\\ + \end{tabular} + } + (EndUser); + % Verification + \path[path, rounded corners] + (EndUser.180) -| + ($ (EndUser) + (-1.25,-.75) $) + node[relation, below]{ + Verify + } -| + (EndUser.210); + + + % Cosigning + \path[path] (Witness) edge[bend right] + node[relation,right]{Cosignature} + (Log); + \path[path] (Log) edge[bend right] + node[relation,left]{Tree head} + (Witness); + \path[path, rounded corners] + (Witness.180) -| + ($ (Witness) + (-1.25,-.75) $) + node[relation, below]{ + Verify + } -| + (Witness.210); + + % Get proofs + \path[path] (Log) -- + node[relation,above]{Proofs of logging} + (Publisher); +\end{tikzpicture} diff --git a/slides/2021-swits/img/before.tex b/slides/2021-swits/img/before.tex new file mode 100644 index 0000000..f634ef4 --- /dev/null +++ b/slides/2021-swits/img/before.tex @@ -0,0 +1,46 @@ +\begin{tikzpicture}[ + -latex, + entity/.style = { + draw = gray!30, + thick, + rounded rectangle, + fill = white, + minimum width = 2cm, + font = \fontsize{8}{8}\selectfont, + text = white, + }, + relation/.style = { + draw = none, + font = \fontsize{6}{6}\selectfont, + }, + path/.style = { + draw, + thick, + -latex, + }, +] + \node[entity, fill=darkBlue] (Publisher) at (0,0) { Publisher }; + \node[entity, fill=darkGreen, below=1.5cm of Publisher] (EndUser) {End-user}; + + % Key setup + \path[path, dashed] ($ (EndUser) + (2,0) $) -- + node[relation, above] { Public key } + (EndUser); + % Get data and signature + \path[path] (Publisher) -- + node[relation, right] { + \begin{tabular}{c} + Opaque data\\ + Signature\\ + \end{tabular} + } + (EndUser); + % Verification + \path[path, rounded corners] + (EndUser.180) -| + ($ (EndUser) + (-1.25,-.75) $) + node[relation, below]{ + Verify + } -| + (EndUser.210); +\end{tikzpicture} diff --git a/slides/2021-swits/img/clean.jpg b/slides/2021-swits/img/clean.jpg Binary files differnew file mode 100644 index 0000000..2465e5e --- /dev/null +++ b/slides/2021-swits/img/clean.jpg diff --git a/slides/2021-swits/img/kau.png b/slides/2021-swits/img/kau.png Binary files differnew file mode 100755 index 0000000..0c7c885 --- /dev/null +++ b/slides/2021-swits/img/kau.png diff --git a/slides/2021-swits/img/log-request.tex b/slides/2021-swits/img/log-request.tex new file mode 100644 index 0000000..08edf87 --- /dev/null +++ b/slides/2021-swits/img/log-request.tex @@ -0,0 +1,47 @@ +\begin{tikzpicture}[ + -latex, + entity/.style = { + draw = gray!30, + thick, + rounded rectangle, + fill = white, + minimum width = 2cm, + font = \fontsize{8}{8}\selectfont, + text = white, + }, + relation/.style = { + draw = none, + font = \fontsize{6}{6}\selectfont, + }, + path/.style = { + draw, + thick, + -latex, + }, +] + \node[entity, fill=darkBlue] (Publisher) at (0,0) { Publisher }; + \node[entity, fill=darkGreen, below=1.5cm of Publisher] (DNS) {DNS}; + \node[entity, fill=darkOrange, left=1.5cm of Publisher] (Log) {Log}; + + % Setup DNS + \path[path, dashed] (Publisher) -- + node[relation, right] {TXT RR} + (DNS); + + \path[path] (Publisher) edge[bend right] + node[relation, above] { + Key-value pairs + } + (Log); + \path[path] (Log) edge[bend right] + node[relation,below] { + accept/reject + } + (Publisher); + + \path[path, rounded corners] (Log) |- + node[relation,below,pos=.75]{ + verify TXT RR + } + (DNS); +\end{tikzpicture} diff --git a/slides/2021-swits/img/mt.tex b/slides/2021-swits/img/mt.tex new file mode 100644 index 0000000..3deaf62 --- /dev/null +++ b/slides/2021-swits/img/mt.tex @@ -0,0 +1,19 @@ +\begin{tikzpicture}[ + -latex, +] + \Tree [ + .$\hash(h_{01}\concat h_{23})$ [ + .$h_{01}\coloneqq\hash(h_0\concat h_1)$ [ + .$h_0\coloneqq\hash(\mathsf{foo})$ + ] [ + .$h_1\coloneqq\hash(\mathsf{bar})$ + ] + ] [ + .$h_{23}\coloneqq\hash(h_2\concat h_3)$ [ + .$h_2\coloneqq\hash(\mathsf{baz})$ + ] [ + .$h_3\coloneqq\hash(\mathsf{qux})$ + ] + ] + ] +\end{tikzpicture} diff --git a/slides/2021-swits/img/mullvad.png b/slides/2021-swits/img/mullvad.png Binary files differnew file mode 100644 index 0000000..4574eb1 --- /dev/null +++ b/slides/2021-swits/img/mullvad.png diff --git a/slides/2021-swits/img/rgdd.jpg b/slides/2021-swits/img/rgdd.jpg Binary files differnew file mode 100644 index 0000000..597b406 --- /dev/null +++ b/slides/2021-swits/img/rgdd.jpg diff --git a/slides/2021-swits/img/thanks.pdf b/slides/2021-swits/img/thanks.pdf Binary files differnew file mode 100644 index 0000000..9ad4dc8 --- /dev/null +++ b/slides/2021-swits/img/thanks.pdf diff --git a/slides/2021-swits/img/tree-leaf.trunnel b/slides/2021-swits/img/tree-leaf.trunnel new file mode 100644 index 0000000..c3806f3 --- /dev/null +++ b/slides/2021-swits/img/tree-leaf.trunnel @@ -0,0 +1,9 @@ +/* + * The logged Merkle tree leaf data + */ +struct tree_leaf { + u64 shard_hint; + u8 checksum[32]; + u8 signature[64]; + u8 key_hash[32]; +} diff --git a/slides/2021-swits/main.tex b/slides/2021-swits/main.tex new file mode 100644 index 0000000..2c617fa --- /dev/null +++ b/slides/2021-swits/main.tex @@ -0,0 +1,21 @@ +\pdfminorversion=4 +%\documentclass[handout,aspectratio=169]{beamer} +\documentclass[aspectratio=169]{beamer} +\usetheme{rgd} + +\input{src/preamble} + +\title{% + An Introduction to System Transparency Logging +} +\author{% + Rasmus Dahlberg +} +\date{% + \today +} + +\begin{document} + \input{src/titlepage} + \input{src/body} +\end{document} diff --git a/slides/2021-swits/slides.pdf b/slides/2021-swits/slides.pdf Binary files differnew file mode 100644 index 0000000..b568efd --- /dev/null +++ b/slides/2021-swits/slides.pdf diff --git a/slides/2021-swits/src/body.tex b/slides/2021-swits/src/body.tex new file mode 100644 index 0000000..8a5f9f5 --- /dev/null +++ b/slides/2021-swits/src/body.tex @@ -0,0 +1,202 @@ +\begin{frame} + \begin{columns} + \begin{column}{0.5\textwidth} + \mktitle{Outline} + \begin{enumerate} + \item Setting and problem + \item Design overview + \item How to get involved + \end{enumerate} + \end{column} + \begin{column}{0.5\textwidth} + \centering + \includegraphics[width=\columnwidth]{img/rgdd} + \burl{https://creativecommons.org/licenses/by-sa/4.0/} + \end{column} + \end{columns} +\end{frame} + +\begin{frame} + % + % 1. Introduce the system. Think first two paragraphs in design.md + % + \mktitle{Our starting point} + \begin{columns} + \begin{column}{0.5\textwidth} + \begin{itemize} + \item Data publisher + \item End-user + \item Assumptions + \begin{itemize} + \item Public key can be located + \item Signed data can be located + \item End-user can install extra tooling + \end{itemize} + \end{itemize} + \end{column} + \begin{column}{0.5\textwidth} + \centering + \input{img/before} + \end{column} + \end{columns} + \vfill + \pause + \alert{The attacker can compromise the data publisher}\\ + \pause + \alert{The goal is to detect unwanted key-usage} +\end{frame} + +\begin{frame} + % + % 1. Our design is about transparency logs. So, I need to explain briefly + % what a transparency log is. + % 2. Append-only Merkle tree. You can think of the data as being stored in + % the leaves. Each leaf is hashed. Parents concatenate their children + % hashes to produces their own hash values. Repeat until single root hash. + % 3. The root hash is usually called a tree head. + % 4. Tree head interesting because it fixes the structure and the content of + % the tree. Add/remove/modify -> new tree head. + % 5. If the log signs the tree head, you can hold it accountable for its + % structure and content. + % 6. This is important because the attacker can control the log. + % 7. So we cannot trust that the log is append-only. We will need to verify + % that. To this end we have consistency proofs. The intuition is that you + % can force the log to reveal a number of cryptographic hashes. These + % hashes will prove that the tree head you see today is consistent with the + % tree head you saw yesterday. + % 8. You can also prove that something is in the log efficiently. This is + % called an inclusion proof. The intuition is that you reveal a number of + % hashes. If you can use them to reconstruct the root of a globally + % consistent tree head you can be sure that some data is in the log. + % 8. Global consistency (as opposed to just consistency) is what prevents + % the log from creating forks. I will return to this later on because it is + % an important part of our design. + % (9. Not having global consistency would be like having a blockchain + % without a consensus mechanism.) + % + \mktitle{A quick step back---Transparency log crash course} + \input{img/mt} + \vfill + \begin{columns} + \begin{column}{0.33\textwidth} + \begin{itemize} + \item Tree head + \end{itemize} + \end{column} + \begin{column}{0.33\textwidth} + \begin{itemize} + \item Consistency proof + \end{itemize} + \end{column} + \begin{column}{0.33\textwidth} + \begin{itemize} + \item Inclusion proof + \end{itemize} + \end{column} + \end{columns} + \vfill + \pause + \alert{The attacker can control the log} +\end{frame} + +\begin{frame} + \mktitle{Preparing a logging request} + \begin{columns} + \begin{column}{0.5\textwidth} + \begin{itemize} + \item Select a shard hint and checksum + \item Sign using your private key + \end{itemize} + \end{column} + \begin{column}{0.5\textwidth} + \lstinputlisting[style=CStyle]{img/tree-leaf.trunnel} + \end{column} + \end{columns} +\end{frame} + +\begin{frame} + \mktitle{Submitting a logging request} + \begin{columns} + \begin{column}{0.2\textwidth} + \underline{Key-value pairs:} + \begin{itemize} + \item Shard hint + \item Checksum + \item Signature + \item Public key + \item Domain hint + \end{itemize} + \end{column} + \begin{column}{0.8\textwidth} + \centering + \input{img/log-request} + \end{column} + \end{columns} +\end{frame} + +\begin{frame} + \mktitle{Distributing proofs of public logging} + \begin{columns} + \begin{column}{0.5\textwidth} + \begin{itemize} + \item End-user will not talk to the log + \item Proofs of logging + \begin{itemize} + \item Inclusion proof + \item Tree head + \end{itemize} + \item Witness cosigning + \end{itemize} + \end{column} + \begin{column}{0.5\textwidth} + \centering + \input{img/after} + \end{column} + \end{columns} + \pause + \alert{The attacker can control a threshold of witnesses} +\end{frame} + +\begin{frame} + \mktitle{Summary and additional details} + \begin{columns} + \begin{column}{0.5\textwidth} + \begin{itemize} + \item Signed checksums + \item Sharding + \item Preserved data flows + \item Anti-spam + \item Global consistency + \item Few simple parsers + \item No cryptographic agility + \end{itemize} + \end{column} + \begin{column}{0.5\textwidth} + \includegraphics[width=\columnwidth]{img/clean} + \end{column} + \end{columns} +\end{frame} + +\begin{frame} + \vfill + \begin{columns} + \begin{column}{0.7\textwidth} + \mktitle{Get involved} + \begin{itemize} + \item Feedback on our v0 design\footnotemark and API\footnotemark? + \item Is this a service that you would use? Why (not)? + \item Want to run an experimental log or witness? + \item Implementation and tooling is still early-days + \item Reach out via slack\footnotemark, IRC\footnotemark, GitHub, or DM + \end{itemize} + \end{column} + \begin{column}{0.3\textwidth} + \centering + \includegraphics[width=\columnwidth]{img/thanks} + \end{column} + \end{columns} + \footnotetext[1]{\burl{https://github.com/system-transparency/stfe/blob/design/doc/design.md}} + \footnotetext[2]{\burl{https://github.com/system-transparency/stfe/blob/design/doc/api.md}} + \footnotetext[3]{\burl{https://communityinviter.com/apps/system-transparency/join}} + \footnotetext[4]{\tiny{\texttt{irc/oftc \#siglog}}} +\end{frame} diff --git a/slides/2021-swits/src/preamble.tex b/slides/2021-swits/src/preamble.tex new file mode 100644 index 0000000..4021351 --- /dev/null +++ b/slides/2021-swits/src/preamble.tex @@ -0,0 +1,113 @@ +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% Packages % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +\usepackage[utf8]{inputenc} + +\usepackage[ + lambda, advantage, operators, sets, adversary, landau, probability, notions, + logic, ff, mm, primitives, events, complexity, asymptotics, keys +]{cryptocode} + +\usepackage{rotate} +\usepackage{graphicx} +\usepackage{mathtools} +\usepackage{amsmath} +\usepackage{amssymb} +\usepackage{flowchart} +\usepackage{smartdiagram} +\usepackage{pifont} +\usepackage{wasysym} +\usepackage{graphicx} +\usepackage{color} +\usepackage{drawstack} +\usepackage{tikz} +\usepackage{tikz-qtree} +\usetikzlibrary{ + arrows,% + decorations.markings,% + backgrounds,% + calc,% + fit,% + positioning,% + shapes.misc,% + shadows,% + shapes.arrows,% + shapes,% + snakes,% +} +\usepackage{booktabs} +\usepackage{smartdiagram} +%\usepackage{floatrow}% this one causes error on arch for some reason +\usepackage[position=bottom]{subfig} % environment for nested figures + +\usepackage{xcolor} +\definecolor{darkGreen}{HTML}{008000} +\definecolor{darkBlue}{HTML}{2809B2} +\definecolor{darkRed}{HTML}{CC0000} +\definecolor{darkGray}{HTML}{808080} +\definecolor{darkOrange}{HTML}{D77D00} +\definecolor{darkPurple}{HTML}{800080} +\colorlet{lightGray}{gray!33} +\colorlet{lightYellow}{yellow!50} +\definecolor{darkGreen}{HTML}{008000} +\definecolor{darkBlue}{HTML}{2809B2} +\definecolor{darkRed}{HTML}{CC0000} + +\usepackage{hyperref} +\hypersetup{ + colorlinks = true, % Color links instead of boxes + urlcolor = darkBlue, % Color external hyper links + linkcolor = darkBlue, % Color internal links + citecolor = darkBlue, % Color citations +} + +% Figures, tables and code +\usepackage{booktabs} +\usepackage{colortbl} +\usepackage{flowchart} +\usepackage{adjustbox} +\usepackage{listings} + +\lstdefinestyle{CStyle}{ + backgroundcolor=\color{lightGray!25}, + commentstyle=\color{darkGreen}, + keywordstyle=\color{darkBlue}, + numberstyle=\tiny\color{darkRed}, + stringstyle=\color{darkPurple}, + basicstyle=\footnotesize, + breakatwhitespace=false, + breaklines=false, + captionpos=b, + keepspaces=true, + numbers=left, + numbersep=5pt, + showspaces=false, + showstringspaces=false, + showtabs=false, + tabsize=2, + language=C, + morekeywords={size_t,def,in,zip,True,False,ord,u8,u64}, +} + +\setbeamertemplate{itemize item}[circle] +\setbeamertemplate{itemize subitem}[default] +\setbeamertemplate{caption}[numbered] + +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +% Defines % +%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%% +\makeatletter +\let\@@magyar@captionfix\relax %needed for \titlefloatright +\makeatother + +\newcommand{\tyes}{\textcolor{darkGreen}{\ding{51}}} +\newcommand{\tno}{\textcolor{darkRed}{\ding{55}}} +\newcommand{\burl}[1]{\tiny{\url{#1}}} +\newcommand{\TODO}[1]{\textcolor{red}{TODO}: #1} +\newcommand{\floatright}[1]{\hspace{0pt plus 1 filll}#1$\;$} + +\def\rding{\rotatebox[origin=c]{-91}{\ding{224}}} +\def\lding{\rotatebox[origin=c]{91}{\ding{224}}} + +% TODO: fix this properly... +\newcommand{\mktitle}[1]{\centering\textbf{\large#1}\vfill\normalsize} diff --git a/slides/2021-swits/src/titlepage.tex b/slides/2021-swits/src/titlepage.tex new file mode 100644 index 0000000..9b18039 --- /dev/null +++ b/slides/2021-swits/src/titlepage.tex @@ -0,0 +1,3 @@ +\begin{frame} + \titlepage +\end{frame} |
