diff --git a/macros.tex b/macros.tex
index 9ad58f2..77b24d7 100644
--- a/macros.tex
+++ b/macros.tex
@@ -24,6 +24,7 @@
 \newcommand{\SIVP}{\ensuremath{\textsf{SIVP}_\gamma}\xspace}
 %% Models
 \newcommand{\UC}{\textrm{UC}\xspace}
+\newcommand{\ROM}{\textsf{ROM}\xspace}
 
 
 
diff --git a/symbols.tex b/symbols.tex
index 0c89b8a..3a8d545 100644
--- a/symbols.tex
+++ b/symbols.tex
@@ -2,16 +2,17 @@
 \addcontentsline{toc}{chapter}{List of Symbols}
 
 \begin{tabular}{ll}
-  TM         &  Turing Machine                       \\
-  $\ppt$     &  Probabilistic Polynomial Time        \\
-  $\epsilon$ &  empty word                           \\
-  PKE        &  Public Key Encryption                \\
-  ZK         &  Zero-Knowledge                       \\
-  $\UC$      &  Universal Composability              \\
-  $\SIS$     &  Short Integer Solution               \\
-  $\LWE$     &  Learning with Errors                 \\
-  $\SIVP$    &  Shortest Independent Vectors Problem \\
-  $\DLP$     &  Discrete Logarithm Problem           \\
-  $\DDH$     &  Decisional Diffie-Hellman            \\
-  $\SXDH$    &  Symmetric eXternal Diffie-Hellman
+  TM         & Turing Machine                       \\
+  $\ppt$     & Probabilistic Polynomial Time        \\
+  $\epsilon$ & empty word                           \\
+  PKE        & Public Key Encryption                \\
+  ZK         & Zero-Knowledge                       \\
+  $\ROM$     & Random-Oracle Model                  \\
+  $\UC$      & Universal Composability              \\
+  $\SIS$     & Short Integer Solution               \\
+  $\LWE$     & Learning with Errors                 \\
+  $\SIVP$    & Shortest Independent Vectors Problem \\
+  $\DLP$     & Discrete Logarithm Problem           \\
+  $\DDH$     & Decisional Diffie-Hellman            \\
+  $\SXDH$    & Symmetric eXternal Diffie-Hellman
 \end{tabular}