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instantiate Scytale diameter

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Fixes #349
This commit is contained in:
Adam C. Foltzer 2016-07-05 14:42:59 -07:00
parent 117dc0a931
commit 054a3e2248
2 changed files with 4 additions and 3 deletions
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docs/ProgrammingCryptol.pdf
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docs/ProgrammingCryptol/classic/Classic.tex
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@ -701,10 +701,11 @@ The signature\indSignature on {\tt msg'} is revealing: We are taking a
string that has {\tt diameter * row} characters in it, and chopping it
up so that it has {\tt row} elements, each of which is a string that
has {\tt diameter} characters in it. Here is Cryptol in action,
encrypting the message {\tt ATTACKATDAWN}:
encrypting the message {\tt ATTACKATDAWN}, with {\tt diameter} set to
{\tt 3}:
\begin{Verbatim}
Cryptol> :set ascii=on
Cryptol> scytale "ATTACKATDAWN"
Cryptol> scytale `{diameter=3} "ATTACKATDAWN"
"ACDTKATAWATN"
\end{Verbatim}
Decryption is essentially the same process, except we have to {\tt
@ -724,7 +725,7 @@ precisely the same, except for the signature on {\tt msg'}! When
viewed as a matrix, the types precisely tell which transposition we
want at each step. We have:
\begin{Verbatim}
Cryptol> dScytale "ACDTKATAWATN"
Cryptol> dScytale `{diameter=3} "ACDTKATAWATN"
"ATTACKATDAWN"
\end{Verbatim}