if ("ECB" != $block && isset($_GET["iv"]) && strlen($_GET["iv"]) > 0) {
$iv = $_GET["iv"];
}
if ("encrypt" === $_GET["mode"]) {
// 暗号処理
$decrypt = $val;
if (null !== $iv) {
if ("base64" === $_GET["format"]) {
$iv = base64_decode($iv);
} elseif ("hex" === $_GET["format"]) {
$iv = pack("H*", $iv);
}
}
$params['iv'] = $iv;
$encrypt = Cipher::encrypt($params);
$iv = Cipher::getNowIV();
if ("base64" === $_GET["format"]) {
$encrypt = base64_encode($encrypt);
$iv = base64_encode($iv);
} elseif ("hex" === $_GET["format"]) {
$encrypt = bin2hex($encrypt);
$iv = bin2hex($iv);
}
} elseif ("decrypt" === $_GET["mode"]) {
// 復号処理
$encrypt = $val;
if ("base64" === $_GET["format"]) {
$encrypt = base64_decode($encrypt);
$iv = base64_decode($iv);
} elseif ("hex" === $_GET["format"]) {
$encrypt = pack("H*", $encrypt);
