note 86006 deleted from function.mcrypt-decrypt by thiago
| From: | thiago@php.net | Date: | Mon, 29 Sep 2008 12:44:02 +0000 |
| Subject: | note 86006 deleted from function.mcrypt-decrypt by thiago | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-144874@lists.php.net to get a copy of this message | ||
Note Submitter: gato at debian dot ues dot edu dot sv
Reason: non-english
----
Siguiendo el ejemplo de encriptado y desencriptado mostrado por kooktroop , se puede construir las
funciones siguientes
siendo necesarias la llave y el texto a encriptar o desencriptar, anulando siempre los valores cero
al final del reenvÃo
<?php
# ecnrypt a text in $texto with the key $llave
function encripta($texto) {
$llave="chichicaste";
return mcrypt_encrypt(MCRYPT_XTEA, $llave, $texto, MCRYPT_MODE_ECB,
mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_XTEA, MCRYPT_MODE_ECB), MCRYPT_RAND));
}
# decrypt a text in $cosa with the key $llave
function desencripta($cosa) {
$llave="chichicaste";
return rtrim(mcrypt_decrypt(MCRYPT_XTEA, $llave, $cosa, MCRYPT_MODE_ECB,
mcrypt_create_iv(mcrypt_get_iv_size(MCRYPT_XTEA, MCRYPT_MODE_ECB), MCRYPT_RAND)), "\0");
}
$texto = "one swirl to rule them all";
$variable1 = encripta($texto);
$variable2 = desencripta($variable1);
echo "texto = " . $texto . "<br/>" ;
echo "encriptado = " . $variable1 . "<br/>" ;
echo "desencriptado = " . $variable2 ;
?>