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diff --git a/comparison/comparison.tex b/comparison/comparison.tex index cbe3c7c..2a6506a 100644 --- a/comparison/comparison.tex +++ b/comparison/comparison.tex @@ -235,10 +235,19 @@ Reference: \cite{chaum1990}. Introduces offline double spending detection. \subsection{HINDE} Reference: Unpublished, there used to be some references on a mailing list, but they seem to be gone. +\subsection{Brands} +Reference: \cite{brands1993efficient}. Variations of e-cash based on the representation problem. +In these schemes, divisibility leads to linkability. + +\subsection{Okamoto's Divisible E-Cash} +Reference: \cite{okamoto1995efficient}. Efficient construction for divisible E-Cash, but multiple independent +transactions with the same coin are linkable. + \subsection{Compact E-Cash} Reference: \cite{camenisch2005}. Allows to withdraw $2^\ell$ coins in $O(\ell)$. Either the whole $2^\ell$ coins must be spent at once, or all coins must be spent separately. + \subsection{Divisible E-Cash Made Practical} Reference: \cite{canard2015divisible}. Introduces a different coin structure where there is one global tree and all coins are put on that skeleton. |