diff --git a/exam/ex.tex b/exam/ex.tex index f48f261..6116048 100644 --- a/exam/ex.tex +++ b/exam/ex.tex @@ -81,7 +81,14 @@ $E$ is not present if the adversary is nonce-respecting. Additionally, the distinguisher is computationally unbounded and never repeats a query. - \item \TODO + \item The practical relevance is high, in my opinion. This is due to the + fact that the EWCDM construction is secure against nonce-misusing + adversaries up to the birthday bound. It has been shown that implementing + nonces securely is a difficult task. If a scheme is easily broken by wrong + handling of nonces, there is no \emph{fallback} security guarantee. The + EWCDM construction, however, provides such a \emph{fallback} security + guarantee and is of high practical relevance. + \item \TODO \item \TODO \item \TODO