diff --git a/protocol/protocol.tex b/protocol/protocol.tex index 87d8657e..76817a1b 100644 --- a/protocol/protocol.tex +++ b/protocol/protocol.tex @@ -9785,7 +9785,9 @@ Peter Newell's illustration of the Jubjub bird, from \cite{Carroll1902}. Edwards curves $\Edwards{a,d}$, Montgomery curves $\Montgomery{A,B}$, and extractors $\Extractor{\Adversary}$. \item Correct a use of $\GroupJ$ that should have been $\MontCurve$ in the proof of - \theoremref{thmdistinctxcriterion}. + \theoremref{thmdistinctxcriterion}, and make a minor tweak to the theorem statement + ($k_2 \neq \pm k_1$ instead of $k_1 \neq \pm k_2$) to make the contradiction + derived by the proof clearer. \item Address some of the findings of the QED-it report: \begin{itemize} \item Improved cross-referencing in \crossref{concretepedersenhash}. @@ -11314,7 +11316,7 @@ Let $Q$ be a point of odd-prime order $s$ on a Montgomery curve $\MontCurve = \Montgomery{\ParamM{A},\ParamM{B}}$ over $\GF{\ParamS{r}}$. Let $k_\barerange{1}{2}$ be integers in $\bigrangenozero{-\halfs}{\halfs}$. Let $P_i = \scalarmult{k_i}{Q} = (x_i, y_i)$ for $i \in \range{1}{2}$, with -$k_1 \neq \pm k_2$. Then the non-unified addition constraints +$k_2 \neq \pm k_1$. Then the non-unified addition constraints \begin{formulae} \item $\constraint{x_2 - x_1}{\lambda}{y_2 - y_1}$ @@ -11342,8 +11344,8 @@ then $k_2 = \pm k_1$ (contradiction). The conditions of this theorem are called the \distinctXCriterion. In particular, if $k_\barerange{1}{2}$ are integers in $\bigrange{1}{\halfs}$ -then it is sufficient to require $k_1 \neq k_2$, since that implies -$k_1 \neq \pm k_2$. +then it is sufficient to require $k_2 \neq k_1$, since that implies +$k_2 \neq \pm k_1$. \vspace{2ex} \introlist