\documentclass[letterpaper,twocolumn,10pt]{article}
\usepackage{usenix}

% to be able to draw some self-contained figs
\usepackage{tikz}
\usepackage{amsmath}
\usepackage{msc, array}
\usepackage{xcolor,color,xspace}
\usepackage{xcolor,color,xspace,enumerate,centernot,multirow,float,graphicx,
xcolor,caption,subcaption,textcomp,tikz,listings,adjustbox,algorithm,algorithmic,tcolorbox}
\usepackage{enumitem}
\usepackage{cite}
\usepackage{hyperref}
\usepackage{booktabs,tabularx,makecell}
\newcolumntype{Y}{>{\centering\arraybackslash}X}
\usepackage{pifont}

\title{A Mechanized Analysis of Nested Ratchet Protocols}

\newcommand{\pv}[0]{\textsc{ProVerif}\xspace}

\usetikzlibrary{arrows, positioning, automata, fit}
\usepackage{pgf}


\usepackage{adjustbox}
\usepackage{amsfonts}
\usepackage{amsmath}
\usepackage{amssymb}
\usepackage{amsthm}
\usepackage{booktabs}
\usepackage{color}
\usepackage{paralist}
\usepackage{enumitem}
\usepackage{hhline}
\usepackage{hyperref}
\usepackage[switch]{lineno}
\usepackage{mathtools}
\usepackage{multicol}
\usepackage{multirow}
\usepackage{tabularx}
\usepackage[dvipsnames,table]{xcolor}
\usepackage{tikz}
\usepackage{soul}
\usepackage{arydshln}

% Comments

\newif\ifcomments
\commentstrue
\newcommand{\mb}[1]{\ifcomments\textit{\color{Blue}[MB] : #1}\fi}
\newcommand{\gb}[1]{\ifcomments\textit{\color{ForestGreen}[GB] : #1}\fi}
\newcommand{\kb}[1]{\ifcomments\textit{\color{DarkOrchid}[KB] : #1}\fi}
\newcommand{\bb}[1]{\ifcomments\textit{\color{Mahogany}[BB] : #1}\fi}
\newcommand{\cc}[1]{\ifcomments\textit{\color{OrangeRed}[CC] : #1}\fi}
\newcommand{\kl}[1]{\ifcomments\textit{\color{Cerulean}[KL] : #1}\fi}
\newcommand{\bp}[1]{\ifcomments\textit{\color{RoyalPurple}[BP] : #1}\fi}

\newcommand{\revised}[1]{{\ifcomments\color{RoyalPurple}\fi#1}}

% Link colors

\hypersetup{
  colorlinks,
  linkcolor={black},  
  citecolor={red!70!black},
  urlcolor={blue!70!black}
}

% Table formatting

\newcolumntype{L}[1]{>{\raggedright\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{C}[1]{>{\centering\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}
\newcolumntype{X}[1]{>{\raggedleft\let\newline\\\arraybackslash\hspace{0pt}}m{#1}}

\newcolumntype{R}[2]{%
    >{\adjustbox{angle=#1,lap=\width-(#2)}\bgroup}%
    l%
    <{\egroup}%
}
\newcommand*\rot{\multicolumn{1}{R{45}{0em}}}

\setlength{\tabcolsep}{2.5pt}

\newcommand{\extension}{\raisebox{0.2em}{\rotatebox[origin=c]{180}{$\Lsh$}}}
\newcommand{\extensionl}{\rotatebox[origin=c]{180}{$\Lsh$}}
\newcommand{\raisecircle}[1]{\raisebox{0.1em}{#1}}

\newcommand{\pie}[1]{%
\raisebox{-0.15em}{%
\begin{tikzpicture}
 \draw (0,0) circle (0.65ex);\fill[rotate=90] (0.65ex,0) arc (0:#1:0.65ex) -- (0,0) -- cycle;
\end{tikzpicture}}%
}

\newcommand{\ppie}[1]{%
\raisebox{-0.15em}{%
\begin{tikzpicture}
 \draw (0,0) circle (0.65ex);\fill[rotate=90] (0.65ex,0) arc (0:#1:0.65ex) -- (0,0) -- cycle;
\end{tikzpicture}}%
}

\newcommand{\fullc}{\pie{360}}
\newcommand{\threequartc}{\pie{270}}
\newcommand{\halfc}{\pie{180}}
\newcommand{\quartc}{\pie{90}}
\newcommand{\emptyc}{%
\raisebox{-0.15em}{%
\begin{tikzpicture}
 \draw (0,0) circle (0.65ex);
\end{tikzpicture}}%
}

\newcommand{\fullcr}{\raisecircle{\fullc}}
\newcommand{\halfcr}{\raisecircle{\halfc}}
\newcommand{\emptycr}{\raisecircle{\emptyc}}

% Symbolic table
\newcommand{\fullcd}{~\,$\fullc^{\emph{d}\,}$}
\newcommand{\fullctsym}{~\,$\fullc^{\emph{t}\,\,}$}
\newcommand{\fullco}{~\,$\fullc^{\emph{o}\,}$}
\newcommand{\fullctl}{~\,$\fullc^{\emph{t,l}}$}
\newcommand{\emptycsym}{~\,$\emptyc^{~\,}$}

% Grand slam table
%\newcommand{\fullct}{$\fullc^{\emph{t\,}}$}
%\newcommand{\fullcs}{$\fullc^{\emph{s}}$}
%\newcommand{\emptycx}{$\emptyc^{\;}$}

\newcommand{\fullct}{\fullc}
\newcommand{\fullcs}{\halfc}
\newcommand{\emptycx}{\emptyc}

\newcommand{\featheader}[1]{\emph{\textbf{{#1}.}}}
\newcommand{\featheadernp}[1]{\emph{\textbf{{#1}}}}

% true/false circles

\newcommand{\truecirc}{%
\raisebox{-0.15em}{%
\begin{tikzpicture}
 \draw (0,0) circle (0.65ex);\fill[rotate=90] (0.65ex,0) arc (0:180:0.65ex) -- (0,0) -- cycle;
\end{tikzpicture}}%
}

\newcommand{\falsecirc}{%
\raisebox{-0.15em}{%
\begin{tikzpicture}
 \draw (0,0) circle (0.65ex);\fill[rotate=270] (0.65ex,0) arc (0:180:0.65ex) -- (0,0) -- cycle;
\end{tikzpicture}}%
}



\usepackage{amsthm}
\newtheoremstyle{mydefinition}         % Name of style
  {3pt}                                % Space above
  {3pt}                                % Space below
  {\normalfont}                        % Body font
  {}                                   % Indent amount
  {\bfseries}                          % Theorem head font
  {.}                                  % Punctuation after theorem head
  { }                                  % Space after theorem head
  {}                                   % Theorem head spec
\theoremstyle{mydefinition}
\newtheorem{mydef}{Definition}
\hyphenation{op-tical net-works semi-conduc-tor}

\definecolor{gris}{gray}{0.4}

\definecolor{framecolor}{rgb}{0.122, 0.435, 0.698}%
\definecolor{framecolor2}{named}{red}
\definecolor{bgcolor}{rgb}{0.95, 0.95, 0.95}%

\newcommand{\attackerbox}[1]{%
  \begin{tcolorbox}[
    colframe=framecolor,       %
    colback=bgcolor,           %
    boxrule=0pt,               %
    leftrule=3pt,              %
    arc=0pt,                   %
    left=2pt,                  %
    right=2pt,                 %
    top=2pt,                   %
    bottom=2pt,                %
    width=\linewidth,          %
    before skip=4pt,           %
    after skip=4pt             %
  ]
    #1
  \end{tcolorbox}
}

\newcommand{\badpropbox}[1]{%
  \begin{tcolorbox}[
    colframe=framecolor2,       %
    colback=bgcolor,           %
    boxrule=0pt,               %
    leftrule=3pt,              %
    arc=0pt,                   %
    left=2pt,                  %
    right=2pt,                 %
    top=2pt,                   %
    bottom=2pt,                %
    width=\linewidth,          %
    before skip=4pt,           %
    after skip=4pt             %
  ]
    #1
  \end{tcolorbox}
}

\newcommand{\capbox}[1]{%
  \begin{tcolorbox}[
    colframe=framecolor,       %
    colback=bgcolor,           %
    boxrule=0pt,               %
    leftrule=0pt,              %
    arc=0pt,                   %
    left=2pt,                  %
    right=2pt,                 %
    top=2pt,                   %
    bottom=2pt,                %
    width=\linewidth,          %
    before skip=4pt,           %
    after skip=4pt             %
  ]
    #1
  \end{tcolorbox}
}


\hypersetup{
  colorlinks,
  linkcolor={black},  
  citecolor={red!70!black},
  urlcolor={blue!70!black},
}



\begin{document}

\date{}

\author{
% {\rm Your N.\ Here}\\
% Your Institution
% \and
% {\rm Second Name}\\
% Second Institution
Anonymous Author(s)
}

\maketitle

\input{sections/abstract}

\section{Introduction}

\input{sections/intro}

\section{Related Works}

\input{sections/related}

\section{The Nested Ratchet Protocol}

\input{sections/background}

\section{Formal Modeling}

\input{sections/models}

\section{Analysis of the Nested Ratchet Protocol}

\input{sections/analysis}

\section{Discussion}

\input{sections/discussion}

\section{Limitations \& Future Work}

\input{sections/limitations}

\section{Conclusions}

\input{sections/conclusion}

\input{sections/usenix}

\bibliographystyle{plain}
\bibliography{refs}

\end{document}
