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86 lines
1.9 KiB
86 lines
1.9 KiB
//
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// C++ Implementation: encryption
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//
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// Description:
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//
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//
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// Author: Ulrich Weigelt <ulrich.weigelt@gmx.de>, (C) 2007
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//
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// Copyright: See COPYING file that comes with this distribution
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//
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//
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#include "encryption.h"
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//used in crypt() and decrypt()
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static const char scramble1 [50] = "C6FDC7A1EDFBB6FEE3DBF5BEBAEFDDF7ABC6FDC7A1EDFBB6";
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static const char hexstr [17] = "0123456789ABCDEF";
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int Encryption::hexbyt( const char c )
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{
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if( c >= '0' && c <= '9' )
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return c - '0';
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else
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return c - 'A' + 10;
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}
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const TQString Encryption::crypt( const KURL& url )
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{
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char result[50];
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char scramble2[50];
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TQString hexresult;
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memset (result, 0, 50);
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memset (scramble2, 0, 50);
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int pos = url.pass().utf8().length() + 1;
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unsigned int free = 50 - pos;
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if( url.user().utf8().length() <= free )
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{
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strcpy( &scramble2[pos], url.user().utf8() );
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pos += url.user().utf8().length();
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free -= url.user().utf8().length();
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}
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else
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{
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memcpy( &scramble2[pos], url.user().utf8(), free );
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free = 0;
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}
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if( url.host().utf8().length() <= free )
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{
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strcpy( &scramble2[pos], url.host().utf8() );
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pos += url.host().utf8().length();
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free -= url.host().utf8().length();
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}
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else
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{
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memcpy( &scramble2[pos], url.host().utf8(), free );
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free = 0;
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}
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memcpy( result, url.pass().utf8(), url.pass().utf8().length() );
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for (int i = 0; i <= 31; i++)
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{
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result[i] = (char)( result[i] ^ ( scramble1[i] ^ scramble2[i] ) );
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hexresult += hexstr[ result[i] / 16 ];
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hexresult += hexstr[ result[i] % 16 ];
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}
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return hexresult;
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}
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const TQString Encryption::decrypt( const TQString& pass )
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{
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char result[50];
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memset( result, 0, 50 );
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int i;
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for( i = 0; i <= 31; i++ )
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{
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result[i] = (char)hexbyt( pass[ i * 2 ] ) * 16 + hexbyt( pass[ i * 2 + 1 ] );
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result[i] = (char)( result[i] ^ scramble1[i] );
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}
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return TQString::fromUtf8(result);
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}
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