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<?php
$plaintext = "this is a test";
$password = "enigma";
$cipher = mcrypt_module_open('blowfish', '', 'ecb', '');
$iv_size = mcrypt_enc_get_iv_size($cipher);
srand();
$iv = mcrypt_create_iv($iv_size, MCRYPT_RAND);
mcrypt_generic_init($cipher, $password, $iv);
$ciphertext = mcrypt_generic($cipher, $plaintext);
mcrypt_generic_deinit($cipher);
mcrypt_module_close($cipher);
file_put_contents('secret_message.txt', $iv . $ciphertext);
?>
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