Haoran Ning edited Block Ciphers.tex  about 10 years ago

Commit id: 0130279962196af0d5b4106bdab5e3e2c460fa3f

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\end{itemize}  \item How big does a table need to be to map $\sum^n \rightarrow \sum^n$? $log_2(x!)$ where $x = 2^n$.  \begin{itemize}  \item If n = 128 bits; $k = log_2(2^(128)!) log_2(2^{128}!)  = 2^134 bits.$ \end{itemize}  \end{itemize}  \end{itemize}