From b4410ac5f684ff04529935d268d4721532de84df Mon Sep 17 00:00:00 2001
From: Christian Grothoff <christian@grothoff.org>
Date: Fri, 19 May 2017 23:30:01 +0200
Subject: clarify S_X

---
 doc/paper/taler.tex | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

(limited to 'doc/paper/taler.tex')

diff --git a/doc/paper/taler.tex b/doc/paper/taler.tex
index 76bceca22..ce40fd948 100644
--- a/doc/paper/taler.tex
+++ b/doc/paper/taler.tex
@@ -836,9 +836,10 @@ purposes.  The exchange's bank transfers dealing in traditional currency
 are expected to be recorded for tax authorities to ensure taxability.
 % FIXME: Auditor?
 
-$S_K$ denotes RSA signing with denomination key $K$ and EdDSA~\cite{eddsa,rfc8032}
-over elliptic curve $\mathbb{E}$ for other types of keys.
-$G$ denotes the generator of elliptic curve $\mathbb{E}$.
+$S_K$ denotes RSA signing with denomination key $K$.  Signatures $S_X$
+use EdDSA~\cite{eddsa,rfc8032} over elliptic curve $\mathbb{E}$ for
+all other types of keys $X \not= K$.  $G$ denotes the generator of
+elliptic curve $\mathbb{E}$.
 
 \subsection{Withdrawal}
 
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