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Jeffrey Burdges 2017-05-07 14:01:02 +02:00
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doc/paper/postquantum.tex
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\begin{abstract} \begin{abstract}
David Chaum's original RSA blind sgnatures provide information theoretic David Chaum's original RSA blind sgnatures provide information theoretic
anonymity for customers' purchases. In practice, there are many schemes anonymity for customers' purchases. In practice, there are many schemes
that weaken this to provide properties. We describe a refresh protocol that weaken this to provide properties, such as offline transactions or
for Taler that provides customers with post-quantum anonymity. taxability in Taler. We describe a refresh protocol for Taler that
It replaces an elliptic curve Diffe-Hellman operation with a unique provides customers with post-quantum anonymity. It replaces an elliptic
hash-based encryption scheme for the proof-of-trust via key knoledge curve Diffe-Hellman operation with a hash-based encryption scheme for
property that Taler requires to distinguish untaxable operations from the proof-of-trust via key knoledge property that Taler requires to
taxable purchases. distinguish untaxable operations from taxable purchases.
\end{abstract} \end{abstract}