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rewrote multi-user proofs

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Aaron Kaiser
2023-06-14 14:42:08 +02:00
parent d45bcef6c9
commit 0c4179df46
9 changed files with 50 additions and 48 deletions
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4
thesis/sections/concrete_security.tex
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@@ -77,9 +77,9 @@ Ed25519 is one of the most widely used instantiations of EdDSA. According to the
\subsection{Ed448}
\begin{theorem}[eD448 Bit Security]
\begin{theorem}[Ed448 Bit Security]
\label{theorem:ED448}
The eD448 signature scheme provides 221 bit security in the single-user setting and 220 bit security in the multi-user setting against algebraic adversaries.
The Ed448 signature scheme provides 221 bit security in the single-user setting and 220 bit security in the multi-user setting against algebraic adversaries.
\end{theorem}
Another popular instantiation of the EdDSA signature scheme is Ed448. It uses the Ed448 twisted Edwards curve and SHAKE256 as hash function. It is supposed to provide around 224 bits of security and was also standardized by the IETF and NIST \cite{josefsson_edwards-curve_2017} \cite{moody_digital_2023}. The respective standards provide following values: