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<?php
$plaintext = "The test string";
$password = "enigma";
$iv_size = mcrypt_get_iv_size(MCRYPT_BLOWFISH, MCRYPT_MODE_ECB);
srand();
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
$ciphertext = mcrypt_encrypt(MCRYPT_BLOWFISH, $password, $plaintext,MCRYPT_MODE_ECB, $iv);
file_put_contents('secret_message.txt', $iv . $ciphertext);
$messagedata = file_get_contents('secret_message.txt');
$iv_size = mcrypt_get_iv_size(MCRYPT_BLOWFISH, MCRYPT_MODE_ECB);
$iv = substr($messagedata, 0, $iv_size);
$ciphertext = substr($messagedata, $iv_size);
$password = "enigma";
$plaintext = mcrypt_decrypt(MCRYPT_BLOWFISH, $password, $ciphertext,
MCRYPT_MODE_ECB, $iv);
?>
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