From 89d8696886211c06a40904af25c963ed09cfd0dc Mon Sep 17 00:00:00 2001 From: Jeff Burdges Date: Mon, 7 Nov 2016 17:33:58 +0100 Subject: Zerocoin -> Zerocash Replace zerocoin with zerocash and fix incorrect critisisms --- doc/paper/taler.tex | 21 +++++++++++---------- 1 file changed, 11 insertions(+), 10 deletions(-) diff --git a/doc/paper/taler.tex b/doc/paper/taler.tex index 0f528edbb..4e6cb0505 100644 --- a/doc/paper/taler.tex +++ b/doc/paper/taler.tex @@ -118,7 +118,7 @@ activity, and this limits the ability of the state to shape the society. As bribery is virtually impossible to detect, corruption is widespread and not limited to social elites. % -Zerocoin~\cite{miers2013zerocoin} is an example for translating an +Zerocash~\cite{zerocash} is an example for translating an anarchistic economy into the digital realm. This paper describes Taler, a simple and practical payment system for @@ -188,7 +188,7 @@ in this class is Bitcoin~\cite{nakamoto2008bitcoin}. An initial concern with Bitcoin was the lack of anonymity, as all Bitcoin transactions are recorded for eternity, which can enable identification of users. In theory, this concern has been addressed -with the Zerocoin extension to the protocol~\cite{miers2013zerocoin}. +in the alternatve Zerocash protocol~\cite{zerocash}. The key contribution of blockchain-based protocols is that they dispense with the need for a central, trusted @@ -201,7 +201,7 @@ Yet, there are several major irredeemable problems inherent in their designs: So Bitcoin is an environmentally irresponsible design. \item Bitcoin transactions have pseduononymous recipients, making taxation hard to systematically enforce. - The Zerocoin extension makes this worse. + The Zerocash extension makes this worse. \item Bitcoin introduces a new currency, creating additional financial risks from currency fluctuation. \item Anyone can start an alternative Bitcoin transaction chain, @@ -216,13 +216,14 @@ Yet, there are several major irredeemable problems inherent in their designs: % currency exchange and exacerbates the problems with currency fluctuations. \end{itemize} -Anonymity extensions for BitCoin such as Zerocoin~\cite{miers2013zerocoin} -and BOLT~\cite{BOLT} are also limited to transactions with coins -of fixed discrete value, creating problems with giving change we -outlined in the introduction. Furthermore, these extensions have -problems with aborted transactions, which can reduce the anonymity -set. Taler's refresh protocol also addresses the problem of aborted -transactions, ensuring that aborts cannot be used to attack the +Anonymous alternatives to BitCoin such as Monero~\cite{??}, +Zerocash~\cite{zerocash}, its predecessor Zerocoin~\cite{miers2013zerocoin}, +and the recently proposed BOLT~\cite{BOLT} each have different technical +limitations. Yet, all exacerbate BitCoin's inherent issues with +transaction certenty and performance by require excessive +computation, more blockchain transactions, etc. By comparison, +Taler's refresh protocol handles aborted transactions with minimal +overhead, and ensures that aborts cannot be used to attack the privacy assurances of the system. %GreenCoinX\footnote{\url{https://www.greencoinx.com/}} is a more -- cgit v1.2.3