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Martchus 2015-04-22 19:06:29 +02:00
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411
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#include "aes.h"
#include <cstring>
namespace Crypto {
Aes::byte Aes::sbox[16][16] = {
{ 0x63, 0x7C, 0x77, 0x7B, 0xF2, 0x6B, 0x6F, 0xC5, 0x30, 0x01, 0x67, 0x2B, 0xFE, 0xD7, 0xAB, 0x76 },
{ 0xCA, 0x82, 0xC9, 0x7D, 0xFA, 0x59, 0x47, 0xF0, 0xAD, 0xD4, 0xA2, 0xAF, 0x9C, 0xA4, 0x72, 0xC0 },
{ 0xB7, 0xFD, 0x93, 0x26, 0x36, 0x3F, 0xF7, 0xCC, 0x34, 0xA5, 0xE5, 0xF1, 0x71, 0xD8, 0x31, 0x15 },
{ 0x04, 0xC7, 0x23, 0xC3, 0x18, 0x96, 0x05, 0x9A, 0x07, 0x12, 0x80, 0xE2, 0xEB, 0x27, 0xB2, 0x75 },
{ 0x09, 0x83, 0x2C, 0x1A, 0x1B, 0x6E, 0x5A, 0xA0, 0x52, 0x3B, 0xD6, 0xB3, 0x29, 0xE3, 0x2F, 0x84 },
{ 0x53, 0xD1, 0x00, 0xED, 0x20, 0xFC, 0xB1, 0x5B, 0x6A, 0xCB, 0xBE, 0x39, 0x4A, 0x4C, 0x58, 0xCF },
{ 0xD0, 0xEF, 0xAA, 0xFB, 0x43, 0x4D, 0x33, 0x85, 0x45, 0xF9, 0x02, 0x7F, 0x50, 0x3C, 0x9F, 0xA8 },
{ 0x51, 0xA3, 0x40, 0x8F, 0x92, 0x9D, 0x38, 0xF5, 0xBC, 0xB6, 0xDA, 0x21, 0x10, 0xFF, 0xF3, 0xD2 },
{ 0xCD, 0x0C, 0x13, 0xEC, 0x5F, 0x97, 0x44, 0x17, 0xC4, 0xA7, 0x7E, 0x3D, 0x64, 0x5D, 0x19, 0x73 },
{ 0x60, 0x81, 0x4F, 0xDC, 0x22, 0x2A, 0x90, 0x88, 0x46, 0xEE, 0xB8, 0x14, 0xDE, 0x5E, 0x0B, 0xDB },
{ 0xE0, 0x32, 0x3A, 0x0A, 0x49, 0x06, 0x24, 0x5C, 0xC2, 0xD3, 0xAC, 0x62, 0x91, 0x95, 0xE4, 0x79 },
{ 0xE7, 0xC8, 0x37, 0x6D, 0x8D, 0xD5, 0x4E, 0xA9, 0x6C, 0x56, 0xF4, 0xEA, 0x65, 0x7A, 0xAE, 0x08 },
{ 0xBA, 0x78, 0x25, 0x2E, 0x1C, 0xA6, 0xB4, 0xC6, 0xE8, 0xDD, 0x74, 0x1F, 0x4B, 0xBD, 0x8B, 0x8A },
{ 0x70, 0x3E, 0xB5, 0x66, 0x48, 0x03, 0xF6, 0x0E, 0x61, 0x35, 0x57, 0xB9, 0x86, 0xC1, 0x1D, 0x9E },
{ 0xE1, 0xF8, 0x98, 0x11, 0x69, 0xD9, 0x8E, 0x94, 0x9B, 0x1E, 0x87, 0xE9, 0xCE, 0x55, 0x28, 0xDF },
{ 0x8C, 0xA1, 0x89, 0x0D, 0xBF, 0xE6, 0x42, 0x68, 0x41, 0x99, 0x2D, 0x0F, 0xB0, 0x54, 0xBB, 0x16 }
};
Aes::byte Aes::inv_sbox[16][16] = {
{ 0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb },
{ 0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb },
{ 0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e },
{ 0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25 },
{ 0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92 },
{ 0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84 },
{ 0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06 },
{ 0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b },
{ 0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73 },
{ 0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e },
{ 0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b },
{ 0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4 },
{ 0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f },
{ 0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef },
{ 0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61 },
{ 0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d }
};
Aes::word Aes::rcon[52] = {
0x00000000, 0x01000000, 0x02000000, 0x04000000, 0x08000000, 0x10000000, 0x20000000, 0x40000000,
0x80000000, 0x1B000000, 0x36000000, 0x6C000000, 0xD8000000, 0xAB000000, 0x4D000000, 0x9A000000,
0x2F000000, 0x5E000000, 0xBC000000, 0x63000000, 0xC6000000, 0x97000000, 0x35000000, 0x6A000000,
0xD4000000, 0xB3000000, 0x7D000000, 0xFA000000, 0xEF000000, 0xC5000000, 0x91000000, 0x39000000,
0x72000000, 0xE4000000, 0xD3000000, 0xBD000000, 0x61000000, 0xC2000000, 0x9F000000, 0x25000000,
0x4A000000, 0x94000000, 0x33000000, 0x66000000, 0xCC000000, 0x83000000, 0x1D000000, 0x3A000000,
0x74000000, 0xE8000000, 0xCB000000, 0x8D000000
};
Aes::Aes() :
key_length(0),
num_rounds(0),
w(0)
{
memset(state, 0, 16);
}
Aes::~Aes()
{
}
Aes::byte Aes::gmul(byte a, byte b)
{
unsigned char p = 0;
unsigned char hi;
for(byte i = 0; i < 8; ++i) {
if((b & 1) == 1)
p ^= a;
hi = (a & 0x80);
a <<= 1;
if(hi == 0x80)
a ^= 0x1b;
b >>= 1;
}
return p;
}
void Aes::rotWord(word *b)
{
byte tmp[4];
memcpy(tmp, b, 4);
byte tmpb = tmp[3];
for(byte i = 3; i > 0; --i)
tmp[i] = tmp[i - 1];
tmp[0] = tmpb;
memcpy(b, tmp, 4);
}
void Aes::subWord( word *b )
{
byte tmp[ 4 ];
memcpy( tmp, b, 4 );
for( byte i = 0; i < 4; ++i )
tmp[ i ] = sbox[ tmp[ i ] >> 4 ][ tmp[ i ] & 0x0f ];
memcpy( b, tmp, 4 );
}
void Aes::expandKey( byte *key )
{
if( w )
delete [] w;
w = new word[ 4 * ( num_rounds + 1 ) ];
for( byte iw = 0, ib = 0; iw < key_length; ++iw, ib += 4 )
w[ iw ] = ( key[ ib ] << 24 ) + ( key[ ib + 1 ] << 16 ) + ( key[ ib + 2 ] << 8 ) + key[ ib + 3 ];
word tmp;
for( byte i = key_length; i < ( 4 * ( num_rounds + 1 ) ); ++i ) {
tmp = w[ i - 1 ];
if( ( i % key_length ) == 0 ) {
rotWord( &tmp );
subWord( &tmp );
tmp ^= rcon[ i / key_length ];
} else if( ( key_length > 6 ) && ( ( i % key_length ) == 4 ) ) {
subWord( &tmp );
}
w[ i ] = w[ i - key_length ] ^ tmp;
}
}
void Aes::addRoundKey( byte round )
{
for( byte col = 0; col < 4; ++col )
for( byte row = 0; row < 4; ++row )
state[ row ][ col ] ^= ( w[ round * 4 + col ] >> ( 24 - row * 8 ) ) & 0x000000ff;
}
void Aes::shiftRows( void )
{
byte tmp = 0;
tmp = state[ 1 ][ 0 ];
state[ 1 ][ 0 ] = state[ 1 ][ 1 ];
state[ 1 ][ 1 ] = state[ 1 ][ 2 ];
state[ 1 ][ 2 ] = state[ 1 ][ 3 ];
state[ 1 ][ 3 ] = tmp;
tmp = state[ 2 ][ 0 ];
state[ 2 ][ 0 ] = state[ 2 ][ 2 ];
state[ 2 ][ 2 ] = tmp;
tmp = state[ 2 ][ 1 ];
state[ 2 ][ 1 ] = state[ 2 ][ 3 ];
state[ 2 ][ 3 ] = tmp;
tmp = state[ 3 ][ 3 ];
state[ 3 ][ 3 ] = state[ 3 ][ 2 ];
state[ 3 ][ 2 ] = state[ 3 ][ 1 ];
state[ 3 ][ 1 ] = state[ 3 ][ 0 ];
state[ 3 ][ 0 ] = tmp;
}
void Aes::invShiftRows( void )
{
byte tmp = 0;
tmp = state[ 3 ][ 0 ];
state[ 3 ][ 0 ] = state[ 3 ][ 1 ];
state[ 3 ][ 1 ] = state[ 3 ][ 2 ];
state[ 3 ][ 2 ] = state[ 3 ][ 3 ];
state[ 3 ][ 3 ] = tmp;
tmp = state[ 2 ][ 0 ];
state[ 2 ][ 0 ] = state[ 2 ][ 2 ];
state[ 2 ][ 2 ] = tmp;
tmp = state[ 2 ][ 1 ];
state[ 2 ][ 1 ] = state[ 2 ][ 3 ];
state[ 2 ][ 3 ] = tmp;
tmp = state[ 1 ][ 3 ];
state[ 1 ][ 3 ] = state[ 1 ][ 2 ];
state[ 1 ][ 2 ] = state[ 1 ][ 1 ];
state[ 1 ][ 1 ] = state[ 1 ][ 0 ];
state[ 1 ][ 0 ] = tmp;
}
void Aes::mixColumns( void )
{
unsigned char a[4];
unsigned char b[4];
unsigned char h = 0;
for( byte col = 0; col < 4; ++col ) {
for( byte row = 0; row < 4; ++row ) {
a[ row ] = state[ row ][ col ];
h = state[ row ][ col ] & 0x80;
b[ row ] = state[ row ][ col ] << 1;
if( h == 0x80 )
b[ row ] ^= 0x1b;
}
state[ 0 ][ col ] = b[ 0 ] ^ a[ 3 ] ^ a[ 2 ] ^ b[ 1 ] ^ a[ 1 ];
state[ 1 ][ col ] = b[ 1 ] ^ a[ 0 ] ^ a[ 3 ] ^ b[ 2 ] ^ a[ 2 ];
state[ 2 ][ col ] = b[ 2 ] ^ a[ 1 ] ^ a[ 0 ] ^ b[ 3 ] ^ a[ 3 ];
state[ 3 ][ col ] = b[ 3 ] ^ a[ 2 ] ^ a[ 1 ] ^ b[ 0 ] ^ a[ 0 ];
}
}
void Aes::invMixColumns( void )
{
unsigned char a[4];
for( byte col = 0; col < 4; ++col ) {
for( byte row = 0; row < 4; ++ row )
a[ row ] = state[ row ][ col ];
state[ 0 ][ col ] = gmul( a[ 0 ], 14 ) ^ gmul( a[ 3 ], 9 ) ^ gmul( a[ 2 ], 13 ) ^ gmul( a[ 1 ], 11 );
state[ 1 ][ col ] = gmul( a[ 1 ], 14 ) ^ gmul( a[ 0 ], 9 ) ^ gmul( a[ 3 ], 13 ) ^ gmul( a[ 2 ], 11 );
state[ 2 ][ col ] = gmul( a[ 2 ], 14 ) ^ gmul( a[ 1 ], 9 ) ^ gmul( a[ 0 ], 13 ) ^ gmul( a[ 3 ], 11 );
state[ 3 ][ col ] = gmul( a[ 3 ], 14 ) ^ gmul( a[ 2 ], 9 ) ^ gmul( a[ 1 ], 13 ) ^ gmul( a[ 0 ], 11 );
}
}
bool Aes::setKey( char *key )
{
size_t key_len = strlen( key );
byte *w_key = 0;
byte des_key_len = 0;
if( key_len <= 16 ) {
key_length = 4;
num_rounds = 10;
des_key_len = 16;
} else if( key_len <= 24 ) {
key_length = 6;
num_rounds = 12;
des_key_len = 24;
} else if( key_len <= 32 ) {
key_length = 8;
num_rounds = 14;
des_key_len = 32;
}
w_key = new byte[ des_key_len ];
for( byte i = 0, t = 0; t < des_key_len; ++i, ++t ) {
if( i == key_len )
i = 0;
*( w_key + t ) = *( key + i );
}
expandKey( w_key );
delete [] w_key;
return true;
}
void Aes::cipher( void )
{
addRoundKey( 0 );
for( byte round = 1; round < num_rounds; ++round ) {
for( byte row = 0; row < 4; ++row )
for( byte col = 0; col < 4; ++col )
state[ row ][ col ] = sbox[ state[ row ][ col ] >> 4 ][ state[ row ][ col ] & 0x0f ];
shiftRows( );
mixColumns( );
addRoundKey( round );
}
for( byte row = 0; row < 4; ++row )
for( byte col = 0; col < 4; ++col )
state[ row ][ col ] = sbox[ state[ row ][ col ] >> 4 ][ state[ row ][ col ] & 0x0f ];
shiftRows( );
addRoundKey( num_rounds );
}
void Aes::invCipher( void )
{
addRoundKey( num_rounds );
for( byte round = ( num_rounds - 1 ); round > 0; --round ) {
invShiftRows( );
for( byte row = 0; row < 4; ++row )
for( byte col = 0; col < 4; ++col )
state[ row ][ col ] = inv_sbox[ state[ row ][ col ] >> 4 ][ state[ row ][ col ] & 0x0f ];
addRoundKey( round );
invMixColumns( );
}
invShiftRows( );
for( byte row = 0; row < 4; ++row )
for( byte col = 0; col < 4; ++col )
state[ row ][ col ] = inv_sbox[ state[ row ][ col ] >> 4 ][ state[ row ][ col ] & 0x0f ];
addRoundKey( 0 );
}
size_t Aes::encrypt( char **data, size_t length, char *key )
{
if( length == 0 )
return 0;
if( !setKey( key ) )
return 0;
size_t old_length = length;
while( length % 16 )
++length;
char *buffer = new char[ length ];
memset( buffer, 0, length );
memcpy( buffer, *data, old_length );
delete [] *data;
*data = buffer;
size_t cur_block = 0;
do {
for( byte col = 0; col < 4; ++col )
for( byte row = 0; row < 4; ++row )
state[ row ][ col ] = static_cast< byte >( ( *data )[ cur_block * 16 + row + 4 * col ] );
cipher( );
for( byte col = 0; col < 4; ++col )
for( byte row = 0; row < 4; ++row )
( *data )[ cur_block * 16 + row + 4 * col ] = static_cast< char >( state[ row ][ col ] );
++cur_block;
} while( cur_block * 16 != length );
return cur_block;
}
size_t Aes::decrypt( char **data, size_t length, char *key )
{
if( length == 0 )
return 0;
if( !setKey( key ) )
return 0;
size_t old_length = length;
while( length % 16 )
++length;
char *buffer = new char[ length ];
memset( buffer, 0, length );
memcpy( buffer, *data, old_length );
delete [] *data;
*data = buffer;
size_t cur_block = 0;
do {
for( byte col = 0; col < 4; ++col )
for( byte row = 0; row < 4; ++row )
state[ row ][ col ] = static_cast< byte >( ( *data )[ cur_block * 16 + row + 4 * col ] );
invCipher( );
for( byte col = 0; col < 4; ++col )
for( byte row = 0; row < 4; ++row )
( *data )[ cur_block * 16 + row + 4 * col ] = static_cast< char >( state[ row ][ col ] );
++cur_block;
} while( cur_block * 16 != length );
--length;
while( ! ( ( *buffer ) + length ) )
--length;
++length;
return length;
}
}

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#ifndef AES_INCLUDED
#define AES_INCLUDED AES_INCLUDED
#include <c++utilities/application/global.h>
#include <cstring>
namespace Crypto {
class LIB_EXPORT Aes {
public:
typedef unsigned char byte;
typedef unsigned long word;
Aes();
~Aes();
size_t encrypt(char **data, size_t length, char *key);
size_t decrypt(char **data, size_t length, char *key);
private:
static byte gmul(byte a, byte b);
static void rotWord(word *b );
static void subWord(word *b );
bool setKey(char *key);
void expandKey(byte *key);
void addRoundKey(byte round);
void shiftRows(void);
void invShiftRows(void);
void mixColumns(void);
void invMixColumns(void);
void cipher(void);
void invCipher(void);
static byte sbox[16][16];
static byte inv_sbox[16][16];
static word rcon[52];
byte key_length;
byte num_rounds;
word *w;
byte state[4][4];
};
}
#endif /* AES_INCLUDED */

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# template
TEMPLATE = lib
#dirs
UI_DIR = ./gui
MOC_DIR = ./moc
OBJECTS_DIR = ./obj
RCC_DIR = ./res
# compiler flags
QMAKE_CXXFLAGS += -std=c++11
QMAKE_LFLAGS += -std=c++11
unix {
QMAKE_LFLAGS += "-Wl,--rpath=./"
}
# prefix
targetprefix = .
# target
CONFIG(debug, debug|release) {
TARGET = $$targetprefix/$${projectname}d
} else {
TARGET = $$targetprefix/$$projectname
}
# variables to check target architecture
win32-g++:QMAKE_TARGET.arch = $$QMAKE_HOST.arch
win32-g++-32:QMAKE_TARGET.arch = x86
win32-g++-64:QMAKE_TARGET.arch = x86_64
linux-g++:QMAKE_TARGET.arch = $$QMAKE_HOST.arch
linux-g++-32:QMAKE_TARGET.arch = x86
linux-g++-64:QMAKE_TARGET.arch = x86_64
# configuration
mobile {
DEFINES += CONFIG_MOBILE
} else:desktop {
DEFINES += CONFIG_DESKTOP
} else:android {
CONFIG += mobile
DEFINES += CONFIG_MOBILE
} else {
CONFIG += desktop
DEFINES += CONFIG_DESKTOP
}
no-gui {
QT -= gui
DEFINES += GUI_NONE
guiqtquick || guiqtwidgets {
error("Can not use no-gui with guiqtquick or guiqtwidgets.")
} else {
message("Configured for no GUI support.")
}
} else {
QT += gui
mobile {
CONFIG += guiqtquick
}
desktop {
CONFIG += guiqtwidgets
}
}
guiqtquick {
message("Configured for Qt Quick GUI support.")
greaterThan(QT_MAJOR_VERSION, 4): QT += quick
CONFIG(debug, debug|release) {
CONFIG += qml_debug
}
DEFINES += GUI_QTQUICK
}
guiqtwidgets {
message("Configured for Qt widgets GUI support.")
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
DEFINES += GUI_QTWIDGETS
DEFINES += MODEL_UNDO_SUPPORT
}

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#include "cryptoexception.h"
namespace Io {
/*!
* \class CryptoException
* \brief The exception that is thrown when an encryption/decryption error occurs.
*/
/*!
* \brief Constructs a crypto exception.
*/
CryptoException::CryptoException(const std::string &openSslErrorQueue) USE_NOTHROW :
runtime_error(openSslErrorQueue)
{}
/*!
* \brief Destroys the exception.
*/
CryptoException::~CryptoException() USE_NOTHROW
{}
}

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#ifndef CRYPTOFAILUREEXCEPTION_H
#define CRYPTOFAILUREEXCEPTION_H
#include <c++utilities/application/global.h>
#include <stdexcept>
#include <string>
namespace Io {
class LIB_EXPORT CryptoException : public std::runtime_error
{
public:
CryptoException(const std::string &openSslErrorQueue) USE_NOTHROW;
virtual ~CryptoException() USE_NOTHROW;
};
}
#endif // CRYPTOFAILUREEXCEPTION_H

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#include "entry.h"
#include "parsingexception.h"
#include <c++utilities/io/binaryreader.h>
#include <c++utilities/io/binarywriter.h>
#include <sstream>
#include <algorithm>
using namespace std;
using namespace IoUtilities;
using namespace ConversionUtilities;
namespace Io {
/*!
* \namespace Io
* \brief Contains all IO related classes.
*/
/*!
* \class Entry
* \brief Instances of the Entry class form a hierarchic data strucutre used to store
* account information.
*
* Entries can be serialized and deserialized using the parse() and make() methods.
*/
/*!
* \brief Constructs a new entry with the specified \a label and \a parent.
*/
Entry::Entry(const string &label, NodeEntry *parent) :
m_parent(nullptr),
m_index(-1)
{
setParent(parent);
setLabel(label);
}
/*!
* \brief Constructs a copy of the another entry.
* \remarks The copy will be parentless and thus not be embedded in the hierarchy
* of \a other. Child entries will be copied as well.
*/
Entry::Entry(const Entry &other) :
m_label(other.m_label),
m_parent(nullptr),
m_index(-1)
{}
/*!
* \brief Destroys the entry.
*/
Entry::~Entry()
{
setParent(nullptr);
}
/*!
* \brief Internally called to make the label unique.
* \sa setLabel()
*/
void Entry::makeLabelUnique()
{
if(m_parent) {
int index = 1;
string currentLabel(label());
checkLabel:
for(Entry *sibling : m_parent->children()) {
if(sibling != this && currentLabel == sibling->label()) {
stringstream newLabel(currentLabel);
newLabel.seekp(0, ios_base::end);
if(newLabel.tellp()) {
newLabel << ' ';
}
newLabel << ++index;
currentLabel = newLabel.str();
goto checkLabel;
}
}
m_label = currentLabel;
}
}
/*!
* \brief Sets the \a parent for the entry.
*
* If an \a index is specified the entry will be inserted as child at this position.
* If \a parent is nullptr, the entry will be parentless.
*/
void Entry::setParent(NodeEntry *parent, int index)
{
if(m_parent != parent || (m_index != index && index >= 0)) {
if(m_parent) {
m_parent->m_children.erase(m_parent->m_children.begin() + m_index);
for(auto i = m_parent->m_children.begin() + m_index; i < m_parent->m_children.end(); ++i) {
(*i)->m_index -= 1;
}
}
if(parent) {
if(index < 0 || static_cast<size_t>(index) >= parent->m_children.size()) {
m_index = parent->m_children.size();
parent->m_children.push_back(this);
} else {
for(auto i = parent->m_children.insert(parent->m_children.begin() + index, this) + 1;
i != parent->m_children.end(); ++i) {
(*i)->m_index += 1;
}
m_index = index;
}
} else {
m_index = -1;
}
m_parent = parent;
makeLabelUnique();
}
}
/*!
* \brief Returns an indication whether the instance is an indirect child of the specified \a entry.
*/
bool Entry::isIndirectChildOf(NodeEntry *entry) const
{
if(parent()) {
if(parent() == entry) {
return true;
} else {
return parent()->isIndirectChildOf(entry);
}
} else {
return false;
}
}
/*!
* \brief Returns the path of the entry.
*/
std::list<string> Entry::path() const
{
list<string> res;
path(res);
return res;
}
/*!
* \brief Stores to path of the entry in the specified list of string.
*/
void Entry::path(std::list<string> &res) const
{
if(m_parent) {
m_parent->path(res);
}
res.push_back(label());
}
/*!
* \brief Parses an entry from the specified \a stream.
* \throws Throws ParsingException when a parsing exception occurs.
*/
Entry *Entry::parse(istream &stream)
{
byte version = stream.peek();
if(denotesNodeEntry(version)) {
return new NodeEntry(stream);
} else {
return new AccountEntry(stream);
}
}
/*!
* \fn Entry::type()
* \brief Returns the type of the entry.
*/
/*!
* \fn Entry::make()
* \brief Serializes the entry to the specified \a stream.
*/
/*!
* \fn Entry::clone()
* \brief Clones the entry.
* \remarks The copy will be parentless and thus not be embedded in the hierarchy
* of \a other. Child entries will be copied as well.
*/
/*!
* \class NodeEntry
* \brief The NodeEntry class acts as parent for other entries.
*/
/*!
* \brief Constructs a new node entry.
*/
NodeEntry::NodeEntry() :
Entry(),
m_expandedByDefault(true)
{}
/*!
* \brief Constructs a new node entry with the specified \a label and \a parent.
*/
NodeEntry::NodeEntry(const string &label, NodeEntry *parent) :
Entry(label, parent),
m_expandedByDefault(true)
{}
/*!
* \brief Constructs a new node entry which is deserialized from the specified \a stream.
*/
NodeEntry::NodeEntry(istream &stream) :
m_expandedByDefault(true)
{
BinaryReader reader(&stream);
byte version = reader.readByte();
if(denotesNodeEntry(version)) {
if(version == 0x0 || version == 0x1) {
setLabel(reader.readLengthPrefixedString());
if(version == 0x1) { // version 0x1 has an extended header
uint16 extendedHeaderSize = reader.readUInt16BE();
if(extendedHeaderSize >= 1) {
byte flags = reader.readByte();
m_expandedByDefault = flags & 0x80;
extendedHeaderSize -= 1;
}
stream.seekg(extendedHeaderSize, ios_base::cur);
}
uint32 childCount = reader.readUInt32BE();
for(uint32 i = 0; i < childCount; ++i) {
Entry::parse(stream)->setParent(this);
}
} else {
throw ParsingException("Entry version not supported.");
}
} else {
throw ParsingException("Node entry expected.");
}
}
/*!
* \brief Constructs a copy of the another entry.
* \remarks The copy will be parentless and thus not be embedded in the hierarchy
* of \a other. Child entries will be copied as well.
*/
NodeEntry::NodeEntry(const NodeEntry &other) :
Entry(other)
{
for(Entry *otherChild : other.m_children) {
Entry *clonedChild = otherChild->clone();
clonedChild->m_parent = this;
clonedChild->m_index = m_children.size();
m_children.push_back(clonedChild);
}
}
/*!
* \brief Destroys the entry.
*/
NodeEntry::~NodeEntry()
{
for(Entry *child : m_children) {
child->m_parent = nullptr;
delete child;
}
}
/*!
* \brief Deletes children from the node entry.
* \param begin Specifies the index of the first children to delete.
* \param end Specifies the index after the last children to delete.
*/
void NodeEntry::deleteChildren(int begin, int end)
{
auto iterator = m_children.cbegin() + begin;
auto endIterator = m_children.begin() + end;
for(; iterator < endIterator; ++iterator) {
(*iterator)->m_parent = nullptr;
delete *iterator;
}
m_children.erase(m_children.begin() + begin, endIterator);
}
/*!
* \brief Replaces the child \a at the specified index with the specified \a newChild.
*/
void NodeEntry::replaceChild(size_t at, Entry *newChild)
{
if(at < m_children.size()) {
m_children.at(at)->m_parent = nullptr;
m_children[at] = newChild;
}
}
/*!
* \brief Returns an entry specified by the provided \a path.
* \param path Specifies the path of the entry to be returned.
* \param includeThis Specifies whether the current instance should be included.
* \param creationType Specifies a pointer which dereferenced value determines what kind of entry should be created
* if the entry specified by the provided \a path does not exist. The parent of the entry
* to be created must exist. Specify nullptr if no entries should be created (default).
* \returns Returns the entry if found (or created); otherwise nullptr is returned.
*/
Entry *NodeEntry::entryByPath(list<string> &path, bool includeThis, EntryType *creationType)
{
if(path.size()) {
if(includeThis) {
if(path.front() == label()) {
path.pop_front();
} else {
return nullptr;
}
}
if(path.size()) {
for(Entry *child : m_children) {
if(path.front() == child->label()) {
path.pop_front();
if(path.empty()) {
return child;
} else if(child->type() == EntryType::Node) {
return static_cast<NodeEntry *>(child)->entryByPath(path, false, creationType);
} else {
return nullptr; // can not resolve path since an account entry can not have children
}
}
}
if(creationType) {
if(path.size() == 1) {
switch(*creationType) {
case EntryType::Account:
return new AccountEntry(path.front(), this);
case EntryType::Node:
return new NodeEntry(path.front(), this);
}
} else {
return nullptr;
}
}
} else {
return this;
}
}
return nullptr;
}
void NodeEntry::make(ostream &stream) const
{
BinaryWriter writer(&stream);
writer.writeByte(isExpandedByDefault() ? 0x0 : 0x1); // version
writer.writeLengthPrefixedString(label());
if(!isExpandedByDefault()) {
writer.writeUInt16BE(1); // extended header is 1 byte long
writer.writeByte(0x00); // all flags cleared
}
writer.writeUInt32BE(m_children.size());
for(const Entry *child : m_children) {
child->make(stream);
}
}
NodeEntry *NodeEntry::clone() const
{
return new NodeEntry(*this);
}
/*!
* \class AccountEntry
* \brief The exception that is thrown when a parsing error occurs.
*/
AccountEntry::AccountEntry()
{}
/*!
* \brief Constructs a new account entry with the specified \a label and \a parent.
*/
AccountEntry::AccountEntry(const string &label, NodeEntry *parent) :
Entry(label, parent)
{}
/*!
* \brief Constructs a new account entry which is deserialized from the specified \a stream.
*/
AccountEntry::AccountEntry(istream &stream)
{
BinaryReader reader(&stream);
byte version = reader.readByte();
if(!denotesNodeEntry(version)) {
version ^= 0x80; // set bit 0 to false
if(version == 0x0 || version == 0x1) {
setLabel(reader.readLengthPrefixedString());
if(version == 0x1) { // version 0x1 has an extended header
uint16 extendedHeaderSize = reader.readUInt16BE();
// currently there's nothing to read here
stream.seekg(extendedHeaderSize, ios_base::cur);
}
uint32 fieldCount = reader.readUInt32BE();
for(uint32 i = 0; i < fieldCount; ++i) {
m_fields.push_back(Field(this, stream));
}
} else {
throw ParsingException("Entry version not supported.");
}
} else {
throw ParsingException("Account entry expected.");
}
}
/*!
* \brief Constructs a copy of the another entry.
* \remarks The copy will be parentless and thus not be embedded in the hierarchy
* of \a other. Child entries will be copied as well.
*/
AccountEntry::AccountEntry(const AccountEntry &other) :
Entry(other)
{
m_fields = other.m_fields;
}
/*!
* \brief Destroys the entry.
*/
AccountEntry::~AccountEntry()
{}
void AccountEntry::make(ostream &stream) const
{
BinaryWriter writer(&stream);
writer.writeByte(0x80 | 0x0); // version
writer.writeLengthPrefixedString(label());
writer.writeUInt32BE(m_fields.size());
for(const Field &field : m_fields) {
field.make(stream);
}
}
AccountEntry *AccountEntry::clone() const
{
return new AccountEntry(*this);
}
}

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#ifndef ENTRY_H
#define ENTRY_H
#include "field.h"
#include <c++utilities/conversion/types.h>
#include <c++utilities/application/global.h>
#include <iostream>
#include <string>
#include <vector>
#include <list>
namespace Io {
/*!
* \brief Specifies the entry type.
*/
enum class EntryType : int
{
Node, /**< denotes a NodeEntry */
Account /**< denotes an AccountEntry */
};
class NodeEntry;
class LIB_EXPORT Entry
{
friend class NodeEntry;
public:
virtual ~Entry();
Entry &operator=(const Entry &other) = delete;
virtual EntryType type() const = 0;
const std::string &label() const;
void setLabel(const std::string &label);
void makeLabelUnique();
NodeEntry *parent() const;
void setParent(NodeEntry *parent, int index = -1);
int index() const;
bool isIndirectChildOf(NodeEntry *entry) const;
std::list<std::string> path() const;
void path(std::list<std::string> &res) const;
virtual void make(std::ostream &stream) const = 0;
virtual Entry *clone() const = 0;
static Entry *parse(std::istream &stream);
static bool denotesNodeEntry(byte version);
protected:
Entry(const std::string &label = std::string(), NodeEntry *parent = nullptr);
Entry(const Entry &other);
private:
std::string m_label;
NodeEntry *m_parent;
int m_index;
};
/*!
* \brief Returns the label.
*/
inline const std::string &Entry::label() const
{
return m_label;
}
/*!
* \brief Sets the label.
* \remarks The label might be modified to ensure that each child entry within a certain parent
* has a unique label.
*/
inline void Entry::setLabel(const std::string &label)
{
m_label = label;
makeLabelUnique();
}
/*!
* \brief Returns the parent entry.
* \remarks Returns nullptr for top-level entries.
*/
inline NodeEntry *Entry::parent() const
{
return m_parent;
}
/*!
* \brief Returns the index of the entry within its parent. Returns -1 for parentless entries.
*/
inline int Entry::index() const
{
return m_index;
}
class LIB_EXPORT NodeEntry : public Entry
{
friend class Entry;
public:
NodeEntry();
NodeEntry(const std::string &label, NodeEntry *parent = nullptr);
NodeEntry(std::istream &stream);
NodeEntry(const NodeEntry &other);
~NodeEntry();
virtual EntryType type() const;
const std::vector<Entry *> &children() const;
void deleteChildren(int begin, int end);
void replaceChild(size_t at, Entry *newChild);
Entry *entryByPath(std::list<std::string> &path, bool includeThis = true, EntryType *creationType = nullptr);
bool isExpandedByDefault() const;
void setExpandedByDefault(bool expandedByDefault);
virtual void make(std::ostream &stream) const;
virtual NodeEntry *clone() const;
private:
std::vector<Entry *> m_children;
bool m_expandedByDefault;
};
inline EntryType NodeEntry::type() const
{
return EntryType::Node;
}
inline const std::vector<Entry *> &NodeEntry::children() const
{
return m_children;
}
inline bool NodeEntry::isExpandedByDefault() const
{
return m_expandedByDefault;
}
inline void NodeEntry::setExpandedByDefault(bool expandedByDefault)
{
m_expandedByDefault = expandedByDefault;
}
inline bool Entry::denotesNodeEntry(byte version)
{
return (version & 0x80) == 0;
}
class LIB_EXPORT AccountEntry : public Entry
{
public:
AccountEntry();
AccountEntry(const std::string &label, NodeEntry *parent = nullptr);
AccountEntry(std::istream &stream);
AccountEntry(const AccountEntry &other);
~AccountEntry();
virtual EntryType type() const;
const std::vector<Field> &fields() const;
std::vector<Field> &fields();
virtual void make(std::ostream &stream) const;
virtual AccountEntry *clone() const;
private:
std::vector<Field> m_fields;
};
inline EntryType AccountEntry::type() const
{
return EntryType::Account;
}
inline const std::vector<Field> &AccountEntry::fields() const
{
return m_fields;
}
inline std::vector<Field> &AccountEntry::fields()
{
return m_fields;
}
}
#endif // ENTRY_H

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#include "field.h"
#include "parsingexception.h"
#include <c++utilities/io/binaryreader.h>
#include <c++utilities/io/binarywriter.h>
using namespace std;
using namespace IoUtilities;
using namespace ConversionUtilities;
namespace Io {
/*!
* \class Field
* \brief The Field class holds field information which consists of a name and a value
* and is able to serialize and deserialize this information.
*/
/*!
* \brief Constructs a new account entry for the specified account with the specified \a name
* and \a value.
*/
Field::Field(AccountEntry *tiedAccount, const string &name, const string &value) :
m_name(name),
m_value(value),
m_type(FieldType::Normal),
m_tiedAccount(tiedAccount)
{}
/*!
* \brief Constructs a new account entry for the specified account which is deserialize from
* the specified \a stream.
* \throws Throws ParsingException when an parsing error occurs.
*/
Field::Field(AccountEntry *tiedAccount, istream &stream)
{
BinaryReader reader(&stream);
int version = reader.readByte();
if(version == 0x0 || version == 0x1) {
m_name = reader.readLengthPrefixedString();
m_value = reader.readLengthPrefixedString();
byte type = reader.readByte();
if(isValidType(type)) {
m_type = static_cast<FieldType>(type);
} else {
throw ParsingException("Field type is not supported.");
}
if(version == 0x1) { // version 0x1 has an extended header
uint16 extendedHeaderSize = reader.readUInt16BE();
// currently there's nothing to read here
stream.seekg(extendedHeaderSize, ios_base::cur);
}
m_tiedAccount = tiedAccount;
} else {
throw ParsingException("Field version is not supported.");
}
}
/*!
* \brief Serializes the current instance to the specified \a stream.
*/
void Field::make(ostream &stream) const
{
BinaryWriter writer(&stream);
writer.writeByte(0x0); // version
writer.writeLengthPrefixedString(m_name);
writer.writeLengthPrefixedString(m_value);
writer.writeByte(static_cast<byte>(m_type));
}
}

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#ifndef FIELD_H
#define FIELD_H
#include <c++utilities/application/global.h>
#include <iostream>
#include <string>
namespace Io {
enum class FieldType : int
{
Normal,
Password
};
class AccountEntry;
class LIB_EXPORT Field
{
public:
Field(AccountEntry *tiedAccount, const std::string &name = std::string(), const std::string &value = std::string());
Field(AccountEntry *tiedAccount, std::istream &stream);
bool isEmpty() const;
const std::string &name() const;
void setName(const std::string &name);
const std::string &value() const;
void setValue(const std::string &value);
FieldType type() const;
void setType(FieldType type);
AccountEntry *tiedAccount() const;
void make(std::ostream &stream) const;
static bool isValidType(int number);
private:
std::string m_name;
std::string m_value;
FieldType m_type;
AccountEntry *m_tiedAccount;
};
/*!
* \brief Returns an indication whether the entry is empty.
*/
inline bool Field::isEmpty() const
{
return m_name.empty() && m_value.empty();
}
/*!
* \brief Returns the name.
*/
inline const std::string &Field::name() const
{
return m_name;
}
/*!
* \brief Sets the name.
*/
inline void Field::setName(const std::string &name)
{
m_name = name;
}
/*!
* \brief Returns the value.
*/
inline const std::string &Field::value() const
{
return m_value;
}
/*!
* \brief Sets the value.
*/
inline void Field::setValue(const std::string &value)
{
m_value = value;
}
/*!
* \brief Returns the type.
*/
inline FieldType Field::type() const
{
return m_type;
}
/*!
* \brief Sets the type.
*/
inline void Field::setType(FieldType type)
{
m_type = type;
}
/*!
* \brief Returns the tied account.
*/
inline AccountEntry *Field::tiedAccount() const
{
return m_tiedAccount;
}
/*!
* \brief Returns whether the specified \a number is a valid field type.
*/
inline bool Field::isValidType(int number)
{
return number >= 0 && number <= 1;
}
}
#endif // FIELD_H

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#include "parsingexception.h"
namespace Io {
/*!
* \class ParsingException
* \brief The exception that is thrown when a parsing error occurs.
*/
/*!
* \brief Constructs a parsing exception.
*/
ParsingException::ParsingException(const std::string &message) USE_NOTHROW :
runtime_error(message)
{}
/*!
* \brief Destroys the exception.
*/
ParsingException::~ParsingException() USE_NOTHROW
{}
}

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#ifndef PARSINGEXCEPTION_H
#define PARSINGEXCEPTION_H
#include <c++utilities/application/global.h>
#include <stdexcept>
#include <string>
namespace Io {
class LIB_EXPORT ParsingException : public std::runtime_error
{
public:
ParsingException(const std::string &message = std::string()) USE_NOTHROW;
virtual ~ParsingException() USE_NOTHROW;
};
}
#endif // PARSINGEXCEPTION_H

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#include "passwordfile.h"
#include "cryptoexception.h"
#include "parsingexception.h"
#include "entry.h"
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/evp.h>
#include <openssl/rand.h>
#include <zlib.h>
#include <streambuf>
#include <sstream>
#include <cstring>
#include <memory>
#include <functional>
using namespace std;
using namespace IoUtilities;
namespace Io {
const unsigned int aes256cbcIvSize = 16U;
/*!
* \class PasswordFile
* \brief The PasswordFile class holds account information in the form of Entry and Field instances
* and provides methods to read and write these information to encrypted files using OpenSSL.
*/
/*!
* \brief Constructs a new password file.
*/
PasswordFile::PasswordFile() :
m_freader(BinaryReader(&m_file)),
m_fwriter(BinaryWriter(&m_file))
{
m_file.exceptions(ios_base::failbit | ios_base::badbit);
clearPassword();
}
/*!
* \brief Constructs a new password file with the specified \a path and \a password.
*/
PasswordFile::PasswordFile(const string &path, const string &password) :
m_freader(BinaryReader(&m_file)),
m_fwriter(BinaryWriter(&m_file))
{
m_file.exceptions(ios_base::failbit | ios_base::badbit);
setPath(path);
setPassword(password);
}
/*!
* \brief Constructs a copy of another password file.
*/
PasswordFile::PasswordFile(const PasswordFile &other) :
m_path(other.m_path),
m_freader(BinaryReader(&m_file)),
m_fwriter(BinaryWriter(&m_file))
{
m_file.exceptions(ios_base::failbit | ios_base::badbit);
setPath(other.path());
memcpy(m_password, other.m_password, 32);
}
/*!
* \brief Closes the file if still opened and destroys the instance.
*/
PasswordFile::~PasswordFile()
{
close();
}
/*!
* \brief Opens the file. Does not load the contents (see load()).
* \throws Throws ios_base::failure when an IO error occurs.
*/
void PasswordFile::open(bool readOnly)
{
close();
if(m_path.empty()) {
throw ios_base::failure("Unable to open file because path is emtpy.");
}
m_file.open(m_path, readOnly ? ios_base::in | ios_base::binary : ios_base::in | ios_base::out | ios_base::binary);
m_file.seekg(0, ios_base::end);
if(m_file.tellg() == 0) {
throw ios_base::failure("File is empty.");
} else {
m_file.seekg(0);
}
}
/*!
* \brief Generates a new root entry for the file.
*/
void PasswordFile::generateRootEntry()
{
if(!m_rootEntry) {
m_rootEntry.reset(new NodeEntry("accounts"));
}
}
/*!
* \brief Creates the file. Does not generate a new root element (see generateRootElement()).
* \throws Throws ios_base::failure when an IO error occurs.
*/
void PasswordFile::create()
{
close();
if(m_path.empty()) {
throw ios_base::failure("Unable to create file because path is empty.");
}
m_file.open(m_path, fstream::out | fstream::trunc | fstream::binary);
}
/*!
* \brief Reads the contents of the file. Opens the file if not already opened. Replaces
* the current root entry with the new one constructed from the file contents.
* \throws Throws ios_base::failure when an IO error occurs.
* \throws Throws Io::ParsingException when a parsing error occurs.
* \throws Throws Io::CryptoException when a decryption error occurs.
* \throws Throws ConversionUtilities::ConversionException when a conversion error occurs.
*/
void PasswordFile::load()
{
if(!m_file.is_open()) {
open();
}
m_file.seekg(0);
// check magic number
if(m_freader.readUInt32LE() != 0x7770616DU) {
throw ParsingException("Signature not present.");
}
// check version and flags (used in version 0x3 only)
uint32 version = m_freader.readUInt32LE();
if(version != 0x0U && version != 0x1U && version != 0x2U && version != 0x3U)
throw ParsingException("Version is unknown.");
bool decrypterUsed;
bool ivUsed;
bool compressionUsed;
if(version == 0x3U) {
byte flags = m_freader.readByte();
decrypterUsed = flags & 0x80;
ivUsed = flags & 0x40;
compressionUsed = flags & 0x20;
} else {
decrypterUsed = version >= 0x1U;
ivUsed = version == 0x2U;
compressionUsed = false;
}
// get length
fstream::pos_type headerSize = m_file.tellg();
m_file.seekg(0, ios_base::end);
fstream::pos_type size = m_file.tellg();
m_file.seekg(headerSize, ios_base::beg);
size -= headerSize;
// read file
unsigned char iv[aes256cbcIvSize] = {0};
if(decrypterUsed && ivUsed) {
if(size < aes256cbcIvSize) {
throw ParsingException("Initiation vector not present.");
}
m_file.read(reinterpret_cast<char *>(iv), aes256cbcIvSize);
size -= aes256cbcIvSize;
}
if(size <= 0) {
throw ParsingException("No contents found.");
}
// decrypt contents
vector<char> rawbuff;
m_freader.read(rawbuff, size);
vector<char> decbuff;
if(decrypterUsed) {
// initiate ctx
EVP_CIPHER_CTX *ctx = nullptr;
decbuff.resize(size + static_cast<fstream::pos_type>(32));
int outlen1, outlen2;
if ((ctx = EVP_CIPHER_CTX_new()) == nullptr
|| EVP_DecryptInit_ex(ctx, EVP_aes_256_cbc(), nullptr, reinterpret_cast<unsigned const char *>(m_password), iv) != 1
|| EVP_DecryptUpdate(ctx, reinterpret_cast<unsigned char *>(decbuff.data()), &outlen1, reinterpret_cast<unsigned char *>(rawbuff.data()), size) != 1
|| EVP_DecryptFinal_ex(ctx, reinterpret_cast<unsigned char *>(decbuff.data()) + outlen1, &outlen2) != 1) {
if(ctx) {
EVP_CIPHER_CTX_free(ctx);
}
string msg;
unsigned long errorCode = ERR_get_error();
while(errorCode != 0) {
if(!msg.empty()) {
msg += "\n";
}
msg += ERR_error_string(errorCode, 0);
errorCode = ERR_get_error();
}
throw CryptoException(msg);
} else { // decryption suceeded
if(ctx) {
EVP_CIPHER_CTX_free(ctx);
}
size = outlen1 + outlen2;
}
} else { // file is not crypted
decbuff.swap(rawbuff);
}
// decompress
if(compressionUsed) {
if(size < 8) {
throw ParsingException("File is truncated (decompressed size expected).");
}
uLongf decompressedSize = ConversionUtilities::LE::toUInt64(decbuff.data());
rawbuff.resize(decompressedSize);
switch(uncompress(reinterpret_cast<Bytef *>(rawbuff.data()), &decompressedSize, reinterpret_cast<Bytef *>(decbuff.data() + 8), size - static_cast<fstream::pos_type>(8))) {
case Z_MEM_ERROR:
throw ParsingException("Decompressing failed. The source buffer was too small.");
case Z_BUF_ERROR:
throw ParsingException("Decompressing failed. The destination buffer was too small.");
case Z_DATA_ERROR:
throw ParsingException("Decompressing failed. The input data was corrupted or incomplete.");
case Z_OK:
decbuff.swap(rawbuff); // decompression successful
size = decompressedSize;
}
}
// parse contents
stringstream buffstr(stringstream::in | stringstream::out | stringstream::binary);
buffstr.write(decbuff.data(), static_cast<streamsize>(size));
decbuff.resize(0);
buffstr.seekg(0, ios_base::beg);
m_rootEntry.reset(new NodeEntry(buffstr));
}
/*!
* \brief Writes the current root entry to the file.
* \param useEncryption Specifies whether encryption should be used.
* \throws Throws ios_base::failure when an IO error occurs.
* \throws Throws runtime_error when no root entry is present.
* \throws Throws Io::CryptoException when a decryption error occurs.
*/
void PasswordFile::save(bool useEncryption, bool useCompression)
{
if(!m_rootEntry) {
throw runtime_error("Root entry has not been created.");
}
// open file
if(m_file.is_open()) {
m_file.close();
m_file.clear();
}
m_file.open(m_path, ios_base::in | ios_base::out | ios_base::trunc | ios_base::binary);
// write header
m_fwriter.writeUInt32LE(0x7770616DU); // write magic number
//m_fwriter.writeUInt32(useEncryption ? 2U : 0U); // write version (old versions)
m_fwriter.writeUInt32LE(0x3U); // write version
byte flags = 0x00;
if(useEncryption) {
flags |= 0x80 | 0x40;
}
if(useCompression) {
flags |= 0x20;
}
m_fwriter.writeByte(flags);
// serialize root entry and descendants
stringstream buffstr(stringstream::in | stringstream::out | stringstream::binary);
buffstr.exceptions(ios_base::failbit | ios_base::badbit);
m_rootEntry->make(buffstr);
buffstr.seekp(0, ios_base::end);
stringstream::pos_type size = buffstr.tellp();
// write the data to a buffer
buffstr.seekg(0);
vector<char> decbuff(size, 0);
buffstr.read(decbuff.data(), size);
vector<char> encbuff;
// compress data
if(useCompression) {
uLongf compressedSize = compressBound(size);
encbuff.resize(8 + compressedSize);
ConversionUtilities::LE::getBytes(static_cast<uint64>(size), encbuff.data());
switch(compress(reinterpret_cast<Bytef *>(encbuff.data() + 8), &compressedSize, reinterpret_cast<Bytef *>(decbuff.data()), size)) {
case Z_MEM_ERROR:
throw runtime_error("Decompressing failed. The source buffer was too small.");
case Z_BUF_ERROR:
throw runtime_error("Decompressing failed. The destination buffer was too small.");
case Z_OK:
encbuff.swap(decbuff); // decompression successful
size = 8 + compressedSize;
}
}
// encrypt data
if(useEncryption) {
// initiate ctx
EVP_CIPHER_CTX *ctx = nullptr;
unsigned char iv[aes256cbcIvSize];
int outlen1, outlen2;
encbuff.resize(size + static_cast<fstream::pos_type>(32));
if (RAND_bytes(iv, aes256cbcIvSize) != 1
|| (ctx = EVP_CIPHER_CTX_new()) == nullptr
|| EVP_EncryptInit_ex(ctx, EVP_aes_256_cbc(), nullptr, reinterpret_cast<unsigned const char *>(m_password), iv) != 1
|| EVP_EncryptUpdate(ctx, reinterpret_cast<unsigned char *>(encbuff.data()), &outlen1, reinterpret_cast<unsigned char *>(decbuff.data()), size) != 1
|| EVP_EncryptFinal_ex(ctx, reinterpret_cast<unsigned char *>(encbuff.data()) + outlen1, &outlen2) != 1) {
if(ctx) {
EVP_CIPHER_CTX_free(ctx);
}
string msg;
unsigned long errorCode = ERR_get_error();
while(errorCode != 0) {
if(!msg.empty()) {
msg += "\n";
}
msg += ERR_error_string(errorCode, 0);
errorCode = ERR_get_error();
}
throw CryptoException(msg);
} else { // decryption succeeded
if(ctx) {
EVP_CIPHER_CTX_free(ctx);
}
// write encrypted data to file
m_file.write(reinterpret_cast<char *>(iv), aes256cbcIvSize);
m_file.write(encbuff.data(), static_cast<streamsize>(outlen1 + outlen2));
}
} else {
// write data to file
m_file.write(decbuff.data(), static_cast<streamsize>(size));
}
m_file.flush();
}
/*!
* \brief Removes the root element if one is present.
*/
void PasswordFile::clearEntries()
{
m_rootEntry.reset();
}
/*!
* \brief Closes the file if opened. Removes path, password and entries.
*/
void PasswordFile::clear()
{
close();
clearPath();
clearPassword();
clearEntries();
}
/*!
* \brief Writes the current root entry to a plain text file. No encryption is used.
* \param targetPath Specifies the path of the text file.
* \throws Throws ios_base::failure when an IO error occurs.
* \throws Throws runtime_error when no root entry is present.
*/
void PasswordFile::exportToTextfile(const string &targetPath) const
{
if(!m_rootEntry) {
throw runtime_error("Root entry has not been created.");
}
fstream output(targetPath.c_str(), ios_base::out);
function<void (int level)> indention = [&output] (int level) {
for(int i = 0; i < level; ++i) {
output << " ";
}
};
function<void (const Entry *entry, int level)> printNode;
printNode = [&output, &printNode, &indention] (const Entry *entry, int level) {
indention(level);
output << " - " << entry->label() << endl;
switch(entry->type()) {
case EntryType::Node:
for(const Entry *child : static_cast<const NodeEntry *>(entry)->children()) {
printNode(child, level + 1);
}
break;
case EntryType::Account:
for(const Field &field : static_cast<const AccountEntry *>(entry)->fields()) {
indention(level);
output << " " << field.name();
for(int i = field.name().length(); i < 15; ++i) {
output << ' ';
}
output << field.value() << endl;
}
}
};
printNode(m_rootEntry.get(), 0);
output.close();
}
/*!
* \brief Creates a backup of the file. Replaces an existent backup file.
* \throws Throws ios_base::failure when an IO error occurs.
*/
void PasswordFile::doBackup()
{
if(!isOpen()) {
open();
}
fstream backupFile(m_path + ".backup", ios::out | ios::binary);
backupFile.exceptions(ios_base::failbit | ios_base::badbit);
m_file.seekg(0);
backupFile << m_file.rdbuf();
backupFile.close();
}
/*!
* \brief Returns an indication whether a root entry is present.
* \sa generateRootEntry()
* \sa rootEntry()
*/
bool PasswordFile::hasRootEntry() const
{
return m_rootEntry != nullptr;
}
/*!
* \brief Returns the root entry if present or nullptr otherwise.
*/
const NodeEntry *PasswordFile::rootEntry() const
{
return m_rootEntry.get();
}
/*!
* \brief Returns the root entry if present or nullptr otherwise.
*/
NodeEntry *PasswordFile::rootEntry()
{
return m_rootEntry.get();
}
/*!
* \brief Closes the file if currently opened.
*/
void PasswordFile::close()
{
if(m_file.is_open()) {
m_file.close();
}
m_file.clear();
}
/*!
* \brief Returns the current file path.
*/
const string &PasswordFile::path() const
{
return m_path;
}
/*!
* \brief Sets the current file path. Causes the file to be closed if currently opened.
*/
void PasswordFile::setPath(const string &value)
{
close();
m_path = value;
}
/*!
* \brief Clears the current path. Causes the file to be closed if currently opened.
*/
void PasswordFile::clearPath()
{
close();
m_path.clear();
}
/*!
* \brief Returns the current password. It will be used when loading or saving using encryption.
*/
const char *PasswordFile::password() const
{
return m_password;
}
/*!
* \brief Sets the current password. It will be used when loading or saving using encryption.
*/
void PasswordFile::setPassword(const string &value)
{
clearPassword();
value.copy(m_password, 32, 0);
}
/*!
* \brief Clears the current password.
*/
void PasswordFile::clearPassword()
{
memset(m_password, 0, 32);
}
/*!
* \brief Returns an indication whether encryption is used if the file is open; returns always false otherwise.
*/
bool PasswordFile::isEncryptionUsed()
{
if(!isOpen()) {
return false;
}
m_file.seekg(0);
//check magic number
if(m_freader.readUInt32LE() != 0x7770616DU) {
return false;
}
//check version
uint32 version = m_freader.readUInt32LE();
if(version == 0x1U || version == 0x2U) {
return true;
} else if(version == 0x3U) {
return m_freader.readByte() & 0x80;
} else {
return false;
}
}
/*!
* \brief Returns an indication whether the file is open.
*/
bool PasswordFile::isOpen() const
{
return m_file.is_open();
}
/*!
* \brief Returns the size of the file if the file is open; returns always zero otherwise.
*/
size_t PasswordFile::size()
{
if(!isOpen()) {
return 0;
}
m_file.seekg(0, ios::end);
return m_file.tellg();
}
}

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#ifndef PASSWORDFILE_H
#define PASSWORDFILE_H
#include <c++utilities/io/binaryreader.h>
#include <c++utilities/io/binarywriter.h>
#include <string>
#include <iostream>
#include <fstream>
#include <memory>
namespace Io {
class NodeEntry;
class LIB_EXPORT PasswordFile
{
public:
explicit PasswordFile();
explicit PasswordFile(const std::string &path, const std::string &password);
PasswordFile(const PasswordFile &other);
~PasswordFile();
void open(bool readOnly = false);
void generateRootEntry();
void create();
void close();
void load();
void save(bool useEncryption = true, bool useCompression = true);
void clearEntries();
void clear();
void exportToTextfile(const std::string &targetPath) const;
void doBackup();
bool hasRootEntry() const;
const NodeEntry *rootEntry() const;
NodeEntry *rootEntry();
const std::string &path() const;
const char *password() const;
void setPath(const std::string &value);
void clearPath();
void setPassword(const std::string &value);
void clearPassword();
bool isEncryptionUsed();
bool isOpen() const;
size_t size();
private:
std::string m_path;
char m_password[32];
std::unique_ptr<NodeEntry> m_rootEntry;
std::fstream m_file;
IoUtilities::BinaryReader m_freader;
IoUtilities::BinaryWriter m_fwriter;
};
}
#endif // PASSWORDFILE_H

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projectname = passwordfile
# include ../../common.pri when building as part of a subdirs project; otherwise include general.pri
!include(../../common.pri) {
!include(./general.pri) {
error("Couldn't find the common.pri or the general.pri file!")
}
}
TEMPLATE = lib
CONFIG -= qt
win32 {
CONFIG += dll
}
# files
SOURCES += aes/aes.cpp \
io/cryptoexception.cpp \
io/entry.cpp \
io/field.cpp \
io/parsingexception.cpp \
io/passwordfile.cpp \
util/opensslrandomdevice.cpp \
util/openssl.cpp
HEADERS += aes/aes.h \
io/cryptoexception.h \
io/entry.h \
io/field.h \
io/parsingexception.h \
io/passwordfile.h \
util/opensslrandomdevice.h \
util/openssl.h
OTHER_FILES += \
pkgbuild/default/PKGBUILD \
pkgbuild/mingw-w64/PKGBUILD
# libs and includepath
CONFIG(debug, debug|release) {
LIBS += -L../../ -lc++utilitiesd
} else {
LIBS += -L../../ -lc++utilities
}
win32 {
contains(QMAKE_TARGET.arch, x86_64):{
LIBS += -L../../../openssl-mingw_amd64/lib/ -lcrypto
INCLUDEPATH += ../../../build/openssl-mingw_amd64/include
} else {
LIBS += -L../../../openssl-mingw_i386/lib/ -lcrypto
INCLUDEPATH += ../../../build/openssl-mingw_i386/include
}
} else {
android {
LIBS += -L/opt/android-openssl/usr/lib/ -lcrypto
INCLUDEPATH += /opt/android-openssl/usr/include
ANDROID_PACKAGE_SOURCE_DIR = $$PWD/android
ANDROID_EXTRA_LIBS = /opt/android-openssl/usr/lib/libcrypto.so
} else {
LIBS += -lcrypto
}
}
LIBS += -lz
INCLUDEPATH += ../
# installs
!android {
target.path = $$(INSTALL_ROOT)/lib
INSTALLS += target
for(dir, $$list(io util)) {
eval(inc_$${dir} = $${dir})
inc_$${dir}.path = $$(INSTALL_ROOT)/include/$$projectname/$${dir}
inc_$${dir}.files = $${dir}/*.h
INSTALLS += inc_$${dir}
}
}

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pkgname=passwordfile
pkgver=2.0.3
pkgrel=3
arch=('i686' 'x86_64')
pkgdesc="A simple password store using AES-256-CBC encryption via OpenSSL."
license=('GPL')
depends=('c++utilities' 'openssl')
makedepends=('qt5-base')
install=
url="http://martchus.netai.net/"
source=("$pkgname.tar.gz")
md5sums=('d359927292464fcf41c8a11315ff79e2')
# head end
build() {
cd $srcdir/$pkgname
INSTALL_ROOT=$pkgdir/usr/ qmake-qt5 "$pkgname.pro" -r -spec linux-g++
make
}
package() {
cd $srcdir/$pkgname
make install
}

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_name=passwordfile
pkgname=mingw-w64-$_name
pkgver=2.0.3
pkgrel=3
arch=('any')
pkgdesc="A library for reading and writing AES-256-CBC encrypted password files using OpenSSL (mingw-w64)."
license=('GPL')
depends=('mingw-w64-crt' 'mingw-w64-c++utilities' 'mingw-w64-openssl')
makedepends=('mingw-w64-gcc')
url="http://martchus.netai.net/"
source=("${_name}.tar.gz")
md5sums=('4e94aff9225d8873f752995c1bcc5f15')
options=('staticlibs' '!strip')
_architectures="i686-w64-mingw32 x86_64-w64-mingw32"
# head end
build() {
cd $srcdir/$_name
# build utilities for each architecture
for _arch in ${_architectures}; do
mkdir -p build-${_arch} && pushd build-${_arch}
INSTALL_ROOT=$pkgdir/usr/ ${_arch}-qmake-qt5 -r ../${_name}.pro
make
popd
done
}
package() {
cd $srcdir/$_name
for _arch in ${_architectures}; do
# bin stuff
pushd build-${_arch}
${_arch}-strip --strip-unneeded ./release/${_name}.dll
${_arch}-strip --strip-unneeded ./release/lib${_name}.dll.a
install -m755 -D ./release/${_name}.dll $pkgdir/usr/${_arch}/bin/${_name}.dll
install -m755 -D ./release/lib${_name}.dll.a $pkgdir/usr/${_arch}/lib/lib${_name}.dll.a
popd
# include files
for dir in io util
do
mkdir -p $pkgdir/usr/${_arch}/include/${_name}/$dir
install -m644 -D ./$dir/*.h $pkgdir/usr/${_arch}/include/${_name}/$dir
done
done
}

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#include "openssl.h"
#include <openssl/conf.h>
#include <openssl/err.h>
#include <openssl/evp.h>
namespace Util {
namespace OpenSsl {
void init()
{
// load the human readable error strings for libcrypto
ERR_load_crypto_strings();
// load all digest and cipher algorithms
OpenSSL_add_all_algorithms();
// load config file, and other important initialisation
OPENSSL_config(NULL);
}
void clean()
{
// removes all digests and ciphers
EVP_cleanup();
// remove error strings
ERR_free_strings();
}
}
}

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#ifndef OPENSSL_H
#define OPENSSL_H
#include <c++utilities/application/global.h>
namespace Util {
namespace OpenSsl {
void LIB_EXPORT init();
void LIB_EXPORT clean();
}
}
#endif // OPENSSL_H

60
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#include "opensslrandomdevice.h"
#include "io/cryptoexception.h"
#include <c++utilities/conversion/binaryconversion.h>
#include <openssl/rand.h>
#include <openssl/err.h>
#include <string>
using namespace std;
namespace Util {
/*!
* \namespace QtGui
* \brief Contains all miscellaneous utility functions.
*/
/*!
* \class OpenSslRandomDevice
* \brief Provides a random device using the OpenSSL function RAND_bytes().
*/
/*!
* \brief Constructs a new random device.
*/
OpenSslRandomDevice::OpenSslRandomDevice()
{}
/*!
* \brief Generates a new random number.
*/
uint32 OpenSslRandomDevice::operator ()() const {
unsigned char buf[4];
if(RAND_bytes(buf, sizeof(buf))) {
return ConversionUtilities::LE::toUInt32(reinterpret_cast<char *>(buf));
} else {
string msg;
unsigned long errorCode = ERR_get_error();
while(errorCode != 0) {
if(!msg.empty()) {
msg += "\n";
}
msg += ERR_error_string(errorCode, 0);
errorCode = ERR_get_error();
}
throw Io::CryptoException(msg);
}
}
/*!
* \brief Returns the status.
*/
bool OpenSslRandomDevice::status() const
{
return RAND_status();
}
}

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#ifndef OPENSSLRANDOMDEVICE_H
#define OPENSSLRANDOMDEVICE_H
#include <c++utilities/conversion/types.h>
#include <c++utilities/application/global.h>
namespace Util {
class LIB_EXPORT OpenSslRandomDevice
{
public:
OpenSslRandomDevice();
uint32 operator()() const;
bool status() const;
};
}
#endif // OPENSSLRANDOMDEVICE_H

37
util/testroutines.cpp Normal file
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#include "testroutines.h"
#include <martchusutilities/io/binaryreader.h>
#include <martchusutilities/io/binarywriter.h>
#include <iostream>
#include <string>
#include <sstream>
using namespace std;
using namespace IoUtilities;
namespace Testroutines {
void lengthPrefixedString()
{
stringstream stream;
BinaryReader reader(&stream);
BinaryWriter writer(&stream);
string string1("jöalfj32öl4fj34 f234ölf3je frasdölkajwe fqwöejkfwöfklja sdefölasje fasef jasöefjas efajs eflasje faöslefj asöflej asefölajsefl öasejföaslefja söef jaseö flajseflas jeföaslefj aslefjaweöflja4 rfq34jqlök4jfq ljase öfaje4fqp 34f89uj <pfj apefjawepfoi jaefoaje föasdjfaösefj a4jfase9fau sejfpas");
string string2;
string string3("asdfalsjd23öl4j3");
writer.writeLengthPrefixedString(string1);
writer.writeLengthPrefixedString(string2);
writer.writeLengthPrefixedString(string3);
if(reader.readLengthPrefixedString() == string1
&& reader.readLengthPrefixedString() == string2
&& reader.readLengthPrefixedString() == string3) {
cout << "test sucessfull" << endl;
} else {
cout << "test failed" << endl;
}
}
}

10
util/testroutines.h Normal file
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#ifndef TESTROUTINES_H
#define TESTROUTINES_H
namespace Testroutines {
void lengthPrefixedString();
}
#endif // TESTROUTINES_H