xml - 这是什么编程语言/混淆？

Question

我有一个程序将其键盘绑定存储为一个大的混淆或加密文件。我正在尝试找出它是什么类型的加密，但不确定从这里可以探索的其他地方。它包含在一个 XML 文件中，没有任何注释或提示（字段名称为 DeviceIO.Config.Controller）

The whole line is: 
Entry Name="DeviceIO.Config.Controller" Type="3"         Value="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         (edited for brevity...)

向右滚动以查看示例。我可以从哪里开始？或者如果做不到这一点，我有什么资源可以理解如何解决这样的问题？

Answer 1

查看文本块的结尾。它是否以 =（等号）结尾？如果是这样，很可能它是一个Base64 编码的字符串，它不是一种加密，而是一种以文本兼容的方式存储二进制数据的方式，尽管我见过它被用作（非常）的地方当您存储的内容不安全时，基本形式的混淆，就像不直接在聚光灯下一样。

由于这似乎是一个 XML 属性值，因此数据可能包含对 XML 不友好的字符（例如 "、<、& 或其他字符），并且开发人员认为将其全部进行 Base64 编码更容易，而不是专门转义无效的 XML 字符。

它很容易反转，并且大多数编程框架都有内置的实用程序。例如，.NET 就有这种Convert.FromBase64String()方法。我猜这在其他语言中也很容易。