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| -rw-r--r-- | doc/paper/taler.tex | 17 |
1 files changed, 9 insertions, 8 deletions
diff --git a/doc/paper/taler.tex b/doc/paper/taler.tex index 89c7e7e82..088ca25ef 100644 --- a/doc/paper/taler.tex +++ b/doc/paper/taler.tex @@ -1174,14 +1174,15 @@ deanonymize citizens. \subsection{Offline Payments} \label{sec:offline} -Chaum's original proposals for anonymous digital cash avoided the need -for online interactions with the exchange to detect double spending by -providing a means to deanonymize customers involved in -double-spending. This is problematic as the exchange or the merchant -still need out-of-band means to recover funds from the customer, which -may be infeasible in practice. Furthermore, a customer may -accidentally deanonymize himself, for example by double-spending a -coin after restoring from backup. +Anonymous digital cash schemes since Chaum were frequently designed +to allow the merchant to be offline during the transaction, +by providing a means to deanonymize customers involved in +double-spending. We consider this problematic as either the +exchange or the merchant still requires an out-of-band +means to recover funds from the customer, an expensive and +unreliable proposition. Worse, there are unacceptable risks that +a customer may accidentally deanonymize herself, for example by +double-spending a coin after restoring from backup. \subsection{Merchant Tax Audits} |