problem with mcrypt

[Anon]

Hello,

i have some trouble to decrypt a string
here are my fonction to crypt and encrypt. The decrypt function don't return the string.

Thank you for you help

function my_encrypt($kEY,$sString) {

$iIV = mcrypt_create_iv (mcrypt_get_iv_size (MCRYPT_RIJNDAEL_256,MCRYPT_MODE_EC😎, MCRYPT_RAND);
$sEncrypted = base64_encode(mcrypt_encrypt (MCRYPT_RIJNDAEL_256, $KEY, $sString,MCRYPT_MODE_ECB, $iIV));

return($sEncrypted);

} // End function my_encrypt

function my_decrypt($kEY,$sString) {

$iIV = mcrypt_create_iv (mcrypt_get_iv_size (MCRYPT_RIJNDAEL_256,MCRYPT_MODE_EC😎, MCRYPT_RAND);
$sDecrypted = mcrypt_decrypt(MCRYPT_RIJNDAEL_256, $KEY, base64_decode($sString),MCRYPT_MODE_ECB, $iIV);

return($sDecrypted);
}
echo "Donné encrypté : " . my_encrypt($KEY,$input_to_crypt) . "<br>";
echo "Donné décrypté :" . my_decrypt($KEY,$encrypted_data);