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src
EncryptionMode.h
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/*
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* steghide 0.5.1 - a steganography program
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* Copyright (C) 1999-2003 Stefan Hetzl <shetzl@chello.at>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* as published by the Free Software Foundation; either version 2
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* of the License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
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*
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*/
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#ifndef SH_ENCMODE_H
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#define SH_ENCMODE_H
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#include <string>
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class
EncryptionMode
{
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public
:
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static
const
unsigned
int
IRep_size
= 3 ;
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enum
IRep
{
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ECB
= 0,
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CBC
= 1,
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OFB
= 2,
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CFB
= 3,
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NOFB
= 4,
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NCFB
= 5,
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CTR
= 6,
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STREAM
= 7
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} ;
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EncryptionMode
(
void
) ;
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EncryptionMode
(
IRep
irep) ;
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EncryptionMode
(std::string srep) ;
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void
setValue
(
IRep
irep) ;
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std::string
getStringRep
(
void
)
const
;
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IRep
getIntegerRep
(
void
)
const
;
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bool
operator==
(
const
EncryptionMode
& mode)
const
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{
return
(
Value
== mode.
Value
) ; } ;
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static
bool
isValidStringRep
(std::string srep) ;
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static
bool
isValidIntegerRep
(
unsigned
int
irep) ;
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static
std::string
translate
(
IRep
irep) ;
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static
IRep
translate
(std::string srep) ;
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private
:
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static
const
unsigned
int
NumValues
= 8 ;
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IRep
Value
;
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typedef
struct
struct_Translation
{
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IRep
irep
;
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char
*
srep
;
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}
Translation
;
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static
const
Translation
Translations
[] ;
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} ;
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#endif // ndef SH_ENCMODE_H
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