PHP pear Crypt Blowfishで暗号化をする方法

cd /usr/ports/security/pear-Crypt_Blowfish
sudo make install clean

サンプルソース

Crypt_Blowfish 1.1.0RC1 betaの場合。

<?php
include('Crypt/Blowfish.php');

function encrypt ($secret, $clear_text){
        $bf = Crypt_Blowfish::factory('ecb',$secret);
        if(PEAR::isError($bf)){
                echo $bf->getMessage();
                exit;
        }
        $encrypted = $bf->encrypt($clear_text);
        return ($encrypted);
}
function decrypt($secret, $encrypted){
        $bf = Crypt_Blowfish::factory('ecb',$secret);
        if(PEAR::isError($bf)){
                echo $bf->getMessage();
                exit;
        }
        $decrypted = $bf->decrypt($encrypted);
        return ($decrypted);
}

$secret = 'This is your secret';
$text = 'security library';
$encrypted = encrypt($secret, $text);
$decrypted = decrypt($secret, $encrypted);

echo $encrypted, PHP_EOL;
echo $decrypted, PHP_EOL;
?>

<?php
$bf = Crypt_Blowfish::factory('ecb');
$bf->setKey($secret);
?>