Question

我尝试使用mcrypt并加密和解密json数据跨域。实际上，当我在同一个域中使用加密但在ajax中不起作用时，这种方法很有用。

Here is function all:
function all($contentType = 'page') {
    $secret_key = "12345678911234567892123456789312";
    $this->load->database();
    $query = $this->db->query(
       "SELECT * FROM category"
    );
$buffer = mcrypt_encrypt(MCRYPT_RIJNDAEL_256, $secret_key, json_encode($result),       MCRYPT_MODE_ECB);
$this->output->set_output(base64_encode($buffer));

Here is file of view: 
$(function(){
  try {
    $.ajax({
    type: "GET",
    url: "http://localhost:8888/DIY/index.php/user/all/json",
    crossDomain: true,
    contentType: "application/x-www-form-urlencoded",
    async: false,
    dataType: 'text',
    processData: false,
    cache: false,
    success: function (response) {
        var a = mcrypt.Decrypt($.base64('decode', response ));
        console.log(  JSON.parse(a) );
    },
    error: function (ErrorResponse) {
        console.log('error');
    }
});
}
catch (error) {
}
});

The output in Chrome is:
[{"id":"1","EMAIL":"sda@q.com","PHONE":"sdsng","USERNAME":"12das","FIRST_NAME":null,"LAST_NAME":null,"PASSWORD":"","TYPE":null},{"id":"2","EMAIL":"adas","PHONE":"dsada","USERNAME":"asdasd","FIRST_NAME":null,"LAST_NAME":null,"PASSWORD":"","TYPE":null}]

如果我在视图文件中添加JSON.parse（a），它将不会显示任何内容。但是，在Chrome中获得console.log（a）后，我直接将输出数据复制为参数，并在Chrome控制台中使用它

JSON.parse('[{"id":"1","EMAIL":"139520519@qq.com","PHONE":"yang_zhang","USERNAME":"122545929","FIRST_NAME":null,"LAST_NAME":null,"PASSWORD":"","TYPE":null},{"id":"2","EMAIL":"adas","PHONE":"dsada","USERNAME":"asdasd","FIRST_NAME":null,"LAST_NAME":null,"PASSWORD":"","TYPE":null}]')
[Object, Object]

输出是我正在寻找的！任何人都可以帮我解决这个问题吗？

Answer 1

现在它已经解决了。我将mcrypt的模式从ecb更改为cfb，并将IV传递给不同的域。然后使用传递的IV解密数据将获得可以使用JSON.parse（）获取预期的json对象的字符串

使用mcrypt时JSON.parse不起作用

1 个答案: