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| 1 | <?php |
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| 2 | |
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| 3 | /*================================================================================ |
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| 4 | Clase para encriptar y desencriptar cadenas cadenas |
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| 5 | ================================================================================*/ |
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| 6 | class EncripDescrip{ |
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| 7 | var $cadena; // La cadena encriptada o desencriptada que ser�devuelta |
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| 8 | var $clave; // La clave de la cadena encriptada o desencriptada que ser�devuelta |
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| 9 | //________________________________________________________________________________________ |
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| 10 | // |
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| 11 | // Constructor |
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| 12 | //________________________________________________________________________________________ |
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| 13 | function EncripDescrip($clave=12){ |
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| 14 | $this->cadena=""; |
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| 15 | $this->clave=$clave; |
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| 16 | } |
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| 17 | // ____________________________________________________________________________ |
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| 18 | // |
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| 19 | // Encripta una cadena |
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| 20 | //_____________________________________________________________________________ |
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| 21 | function Encriptar($cadena){ |
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| 22 | |
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| 23 | return( $cadena); |
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| 24 | |
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| 25 | $clave=(int)$this->clave; |
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| 26 | $clave = (int)$clave & 0xFF; |
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| 27 | $lon=strlen($cadena); |
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| 28 | $this->cadena=""; |
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| 29 | for($i=0;$i<$lon;$i++){ |
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| 30 | $ch=(int)ord($cadena[$i]); |
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| 31 | $pot=(int)$ch^(int)$clave; |
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| 32 | $this->cadena.=chr($pot); |
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| 33 | } |
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| 34 | return( $this->cadena); |
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| 35 | } |
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| 36 | // ____________________________________________________________________________ |
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| 37 | // |
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| 38 | // Desencripta una cadena |
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| 39 | //_____________________________________________________________________________ |
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| 40 | function Desencriptar($cadena){ |
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| 41 | |
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| 42 | return( $cadena); |
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| 43 | |
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| 44 | $clave=(int)$this->clave; |
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| 45 | $clave = (int)$clave & 0xFF; |
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| 46 | $lon=strlen($cadena); |
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| 47 | $this->cadena=""; |
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| 48 | for($i=0;$i<$lon;$i++){ |
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| 49 | $ch=(int)ord($cadena[$i]); |
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| 50 | $pot=(int)$ch^(int)$clave; |
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| 51 | $this->cadena.=chr($pot); |
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| 52 | } |
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| 53 | return( $this->cadena); |
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| 54 | } |
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| 55 | } |
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| 56 | ?> |
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