|author||Jeffrey Burdges <email@example.com>||2017-05-17 23:58:31 +0200|
|committer||Jeffrey Burdges <firstname.lastname@example.org>||2017-05-17 23:58:31 +0200|
Make double pending Exculpability section about prevention
Diffstat (limited to 'doc/paper')
1 files changed, 7 insertions, 5 deletions
diff --git a/doc/paper/taler.tex b/doc/paper/taler.tex
index 080cb7f2..a2b96809 100644
@@ -1407,7 +1407,7 @@ protocol is never used.
-The exchange can detect and prove double-spending.
+The exchange can detect, prevent, and prove double-spending.
@@ -1417,13 +1417,15 @@ obtains either a deposit-permission or a refresh-record, both of which
contain a signature made with the public key of coin to authorizing the
respective operation. If the exchange has a set of refresh-records and
deposit-permissions whose total value exceed the value of the coin, the
-exchange can show this set to prove that double-spending was attempted.
+exchange can show this set to prove that double-spending is being
+attempted and justify rejecting the operation.
-Merchants and customers can verify double-spending proofs by verifying that the
-signatures in the set of refresh-records and deposit-permissions are correct and
-that the total value exceeds the coin's value.
+Merchants and customers can verify proofs of double-spending attempts
+by verifying that the signatures in the set of refresh-records and
+deposit-permissions are correct and that the total value would exceed
+the coin's value.