生成在C＃中的XML文档的哈希 [英] Generating an XML document hash in C#

问题描述

什么是去在C＃哈希的XML文档的最佳方式？我想凑一个XML文档，这样我可以告诉大家，如果它是手动生成时，它改变了。我没有使用这个安全 - 这是确定的，如果有人改变了XML，并改变了哈希匹配

例如，我会散列子节点根和散列存储为根的一个属性：

 <的RootNode哈希=ABC123> 
<！ - 内容在这里哈希 - > 
< /&的RootNode GT; 
  

解决方案

.NET具有的classes 实现了 XML数字签名规范。可以在原始XML文档中添加签名（即一个笼罩签名），或存储/单独转让。

这可能是一个有点矫枉过正，因为你不吨需要的安全性，但它有被已实施的优点，并且是不依赖于语言或平台的标准。

What's the best way to go about hashing an XML document in C#? I'd like to hash an XML document so that I can tell if it was manually changed from when it was generated. I'm not using this for security--it's OK if someone changes the XML, and changes the hash to match.

For example, I'd hash the child nodes of the root and store the hash as an attribute of the root:

<RootNode Hash="abc123">
    <!-- Content to hash here -->
</RootNode>

解决方案

.NET has classes that implement the XML digital signature spec. The signature can be added inside the original XML document (i.e. an "enveloped signature"), or stored/transferred separately.

It may be a bit overkill since you don't need the security, but it has the advantage of being already implemented, and being a standard which does not depend on a language or platform.

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