\hypertarget{blowfish_8h}{
\section{include/beecrypt/blowfish.h File Reference}
\label{blowfish_8h}\index{include/beecrypt/blowfish.h@{include/beecrypt/blowfish.h}}
}
Blowfish block cipher.
{\ttfamily \#include \char`\"{}beecrypt/beecrypt.h\char`\"{}}\par
{\ttfamily \#include \char`\"{}beecrypt/blowfishopt.h\char`\"{}}\par
Include dependency graph for blowfish.h:
\nopagebreak
\begin{figure}[H]
\begin{center}
\leavevmode
\includegraphics[width=314pt]{blowfish_8h__incl}
\end{center}
\end{figure}
\subsection*{Data Structures}
\begin{DoxyCompactItemize}
\item
struct \hyperlink{structblowfishParam}{blowfishParam}
\begin{DoxyCompactList}\small\item\em Holds all the parameters necessary for the Blowfish cipher. \item\end{DoxyCompactList}\end{DoxyCompactItemize}
\subsection*{Defines}
\begin{DoxyCompactItemize}
\item
\#define \hyperlink{blowfish_8h_a320de9881e6c7560cd5b13828c420d5a}{BLOWFISHROUNDS}~16
\item
\#define \hyperlink{blowfish_8h_aa638e9cb3cbf0ad5b94a25fdb9eb64c6}{BLOWFISHPSIZE}~(BLOWFISHROUNDS+2)
\end{DoxyCompactItemize}
\subsection*{Functions}
\begin{DoxyCompactItemize}
\item
int \hyperlink{blowfish_8h_acce3d0c95c67c98202e851063604819e}{blowfishSetup} (\hyperlink{structblowfishParam}{blowfishParam} $\ast$, const \hyperlink{api_8h_ab8ef12fab634c171394422d0ee8baf94}{byte} $\ast$, size\_\-t, \hyperlink{group__BC__m_gace10d4c0b0409d35c6a703d6445fc558}{cipherOperation})
\begin{DoxyCompactList}\small\item\em The function performs the cipher's key expansion. \item\end{DoxyCompactList}\item
int \hyperlink{blowfish_8h_a56566a49f33043d7a443a7bbbcd7bd5f}{blowfishSetIV} (\hyperlink{structblowfishParam}{blowfishParam} $\ast$, const \hyperlink{api_8h_ab8ef12fab634c171394422d0ee8baf94}{byte} $\ast$iv)
\begin{DoxyCompactList}\small\item\em This function sets the Initialization Vector. \item\end{DoxyCompactList}\item
int \hyperlink{blowfish_8h_a8bd243fafbf7c52359f19ab04de13c42}{blowfishSetCTR} (\hyperlink{structblowfishParam}{blowfishParam} $\ast$, const \hyperlink{api_8h_ab8ef12fab634c171394422d0ee8baf94}{byte} $\ast$nivz, size\_\-t counter)
\item
int \hyperlink{blowfish_8h_a2b48ab4a1793739d266308d1033aee70}{blowfishEncrypt} (\hyperlink{structblowfishParam}{blowfishParam} $\ast$, uint32\_\-t $\ast$, const uint32\_\-t $\ast$)
\begin{DoxyCompactList}\small\item\em This function performs the Blowfish encryption; it encrypts one block of 64 bits. \item\end{DoxyCompactList}\item
int \hyperlink{blowfish_8h_a6339ebc5b30a93680c152076ddd5f033}{blowfishDecrypt} (\hyperlink{structblowfishParam}{blowfishParam} $\ast$, uint32\_\-t $\ast$, const uint32\_\-t $\ast$)
\begin{DoxyCompactList}\small\item\em This function performs the Blowfish decryption; it Rderypts one block of 64 bits. \item\end{DoxyCompactList}\item
uint32\_\-t $\ast$ \hyperlink{blowfish_8h_ae2137286429679c247215465d99342c5}{blowfishFeedback} (\hyperlink{structblowfishParam}{blowfishParam} $\ast$)
\end{DoxyCompactItemize}
\subsection*{Variables}
\begin{DoxyCompactItemize}
\item
const \hyperlink{structblockCipher}{blockCipher} \hyperlink{blowfish_8h_a58839854cfc0f9bcafd4b79ffd8e9d91}{blowfish}
\begin{DoxyCompactList}\small\item\em Holds the full API description of the Blowfish algorithm. \item\end{DoxyCompactList}\end{DoxyCompactItemize}
\subsection{Detailed Description}
Blowfish block cipher. For more information on this blockcipher, see: \char`\"{}Applied Cryptography\char`\"{}, second edition Bruce Schneier Wiley \& Sons
Also see \href{http://www.counterpane.com/blowfish.html}{\tt http://www.counterpane.com/blowfish.html}
\begin{DoxyAuthor}{Author}
Bob Deblier $<$\href{mailto:bob.deblier@telenet.be}{\tt bob.deblier@telenet.be}$>$
\end{DoxyAuthor}
\subsection{Define Documentation}
\hypertarget{blowfish_8h_aa638e9cb3cbf0ad5b94a25fdb9eb64c6}{
\index{blowfish.h@{blowfish.h}!BLOWFISHPSIZE@{BLOWFISHPSIZE}}
\index{BLOWFISHPSIZE@{BLOWFISHPSIZE}!blowfish.h@{blowfish.h}}
\subsubsection[{BLOWFISHPSIZE}]{\setlength{\rightskip}{0pt plus 5cm}\#define BLOWFISHPSIZE~(BLOWFISHROUNDS+2)}}
\label{blowfish_8h_aa638e9cb3cbf0ad5b94a25fdb9eb64c6}
\hypertarget{blowfish_8h_a320de9881e6c7560cd5b13828c420d5a}{
\index{blowfish.h@{blowfish.h}!BLOWFISHROUNDS@{BLOWFISHROUNDS}}
\index{BLOWFISHROUNDS@{BLOWFISHROUNDS}!blowfish.h@{blowfish.h}}
\subsubsection[{BLOWFISHROUNDS}]{\setlength{\rightskip}{0pt plus 5cm}\#define BLOWFISHROUNDS~16}}
\label{blowfish_8h_a320de9881e6c7560cd5b13828c420d5a}
\subsection{Function Documentation}
\hypertarget{blowfish_8h_a6339ebc5b30a93680c152076ddd5f033}{
\index{blowfish.h@{blowfish.h}!blowfishDecrypt@{blowfishDecrypt}}
\index{blowfishDecrypt@{blowfishDecrypt}!blowfish.h@{blowfish.h}}
\subsubsection[{blowfishDecrypt}]{\setlength{\rightskip}{0pt plus 5cm}blowfishDecrypt (
\begin{DoxyParamCaption}
\item[{{\bf blowfishParam} $\ast$}]{bp, }
\item[{uint32\_\-t $\ast$}]{dst, }
\item[{const uint32\_\-t $\ast$}]{src}
\end{DoxyParamCaption}
)}}
\label{blowfish_8h_a6339ebc5b30a93680c152076ddd5f033}
This function performs the Blowfish decryption; it Rderypts one block of 64 bits.
\begin{DoxyParams}{Parameters}
{\em bp} & The cipher's parameter block. \\
\hline
{\em dst} & The cleartext; should be aligned on 32-\/bit boundary. \\
\hline
{\em src} & The ciphertext; should be aligned on 32-\/bit boundary. \\
\hline
\end{DoxyParams}
\begin{DoxyRetVals}{Return values}
{\em 0} & on success. \\
\hline
\end{DoxyRetVals}
\hypertarget{blowfish_8h_a2b48ab4a1793739d266308d1033aee70}{
\index{blowfish.h@{blowfish.h}!blowfishEncrypt@{blowfishEncrypt}}
\index{blowfishEncrypt@{blowfishEncrypt}!blowfish.h@{blowfish.h}}
\subsubsection[{blowfishEncrypt}]{\setlength{\rightskip}{0pt plus 5cm}blowfishEncrypt (
\begin{DoxyParamCaption}
\item[{{\bf blowfishParam} $\ast$}]{bp, }
\item[{uint32\_\-t $\ast$}]{dst, }
\item[{const uint32\_\-t $\ast$}]{src}
\end{DoxyParamCaption}
)}}
\label{blowfish_8h_a2b48ab4a1793739d266308d1033aee70}
This function performs the Blowfish encryption; it encrypts one block of 64 bits.
\begin{DoxyParams}{Parameters}
{\em bp} & The cipher's parameter block. \\
\hline
{\em dst} & The ciphertext; should be aligned on 32-\/bit boundary. \\
\hline
{\em src} & The cleartext; should be aligned on 32-\/bit boundary. \\
\hline
\end{DoxyParams}
\begin{DoxyRetVals}{Return values}
{\em 0} & on success. \\
\hline
\end{DoxyRetVals}
\hypertarget{blowfish_8h_ae2137286429679c247215465d99342c5}{
\index{blowfish.h@{blowfish.h}!blowfishFeedback@{blowfishFeedback}}
\index{blowfishFeedback@{blowfishFeedback}!blowfish.h@{blowfish.h}}
\subsubsection[{blowfishFeedback}]{\setlength{\rightskip}{0pt plus 5cm}uint32\_\-t$\ast$ blowfishFeedback (
\begin{DoxyParamCaption}
\item[{{\bf blowfishParam} $\ast$}]{}
\end{DoxyParamCaption}
)}}
\label{blowfish_8h_ae2137286429679c247215465d99342c5}
\hypertarget{blowfish_8h_a8bd243fafbf7c52359f19ab04de13c42}{
\index{blowfish.h@{blowfish.h}!blowfishSetCTR@{blowfishSetCTR}}
\index{blowfishSetCTR@{blowfishSetCTR}!blowfish.h@{blowfish.h}}
\subsubsection[{blowfishSetCTR}]{\setlength{\rightskip}{0pt plus 5cm}int blowfishSetCTR (
\begin{DoxyParamCaption}
\item[{{\bf blowfishParam} $\ast$}]{, }
\item[{const {\bf byte} $\ast$}]{nivz, }
\item[{size\_\-t}]{counter}
\end{DoxyParamCaption}
)}}
\label{blowfish_8h_a8bd243fafbf7c52359f19ab04de13c42}
\hypertarget{blowfish_8h_a56566a49f33043d7a443a7bbbcd7bd5f}{
\index{blowfish.h@{blowfish.h}!blowfishSetIV@{blowfishSetIV}}
\index{blowfishSetIV@{blowfishSetIV}!blowfish.h@{blowfish.h}}
\subsubsection[{blowfishSetIV}]{\setlength{\rightskip}{0pt plus 5cm}int blowfishSetIV (
\begin{DoxyParamCaption}
\item[{{\bf blowfishParam} $\ast$}]{bp, }
\item[{const {\bf byte} $\ast$}]{iv}
\end{DoxyParamCaption}
)}}
\label{blowfish_8h_a56566a49f33043d7a443a7bbbcd7bd5f}
This function sets the Initialization Vector.
\begin{DoxyNote}{Note}
This function is only useful in block chaining or feedback modes.
\end{DoxyNote}
\begin{DoxyParams}{Parameters}
{\em bp} & The cipher's parameter block. \\
\hline
{\em iv} & The initialization vector; may be null. \\
\hline
\end{DoxyParams}
\begin{DoxyRetVals}{Return values}
{\em 0} & on success. \\
\hline
\end{DoxyRetVals}
\hypertarget{blowfish_8h_acce3d0c95c67c98202e851063604819e}{
\index{blowfish.h@{blowfish.h}!blowfishSetup@{blowfishSetup}}
\index{blowfishSetup@{blowfishSetup}!blowfish.h@{blowfish.h}}
\subsubsection[{blowfishSetup}]{\setlength{\rightskip}{0pt plus 5cm}int blowfishSetup (
\begin{DoxyParamCaption}
\item[{{\bf blowfishParam} $\ast$}]{bp, }
\item[{const {\bf byte} $\ast$}]{key, }
\item[{size\_\-t}]{keybits, }
\item[{{\bf cipherOperation}}]{op}
\end{DoxyParamCaption}
)}}
\label{blowfish_8h_acce3d0c95c67c98202e851063604819e}
The function performs the cipher's key expansion.
\begin{DoxyParams}{Parameters}
{\em bp} & The cipher's parameter block. \\
\hline
{\em key} & The key value. \\
\hline
{\em keybits} & The number of bits in the key; legal values are: 32 to 448, in multiples of 8. \\
\hline
{\em op} & ENCRYPT or DECRYPT. \\
\hline
\end{DoxyParams}
\begin{DoxyRetVals}{Return values}
{\em 0} & on success. \\
\hline
{\em -\/1} & on failure. \\
\hline
\end{DoxyRetVals}
\subsection{Variable Documentation}
\hypertarget{blowfish_8h_a58839854cfc0f9bcafd4b79ffd8e9d91}{
\index{blowfish.h@{blowfish.h}!blowfish@{blowfish}}
\index{blowfish@{blowfish}!blowfish.h@{blowfish.h}}
\subsubsection[{blowfish}]{\setlength{\rightskip}{0pt plus 5cm}{\bf blowfish}}}
\label{blowfish_8h_a58839854cfc0f9bcafd4b79ffd8e9d91}
Holds the full API description of the Blowfish algorithm.
