小编Joh*_*nca的帖子

我可以成功地进行手动引用验证(规范化每个引用的元素 - > SHA1 - > Base64 - >检查它是否与DigestValue内容相同)但是我对SignatureValue的验证失败了.这是规范化和散列的SignedInfo:

<ds:SignedInfo xmlns:ds="http://www.w3.org/2000/09/xmldsig#">
 <ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></ds:CanonicalizationMethod>
 <ds:SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1"></ds:SignatureMethod>
 <ds:Reference URI="#element-1-1291739860070-11803898">
  <ds:Transforms>
   <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></ds:Transform>
  </ds:Transforms>
  <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"></ds:DigestMethod>
  <ds:DigestValue>d2cIarD4atw3HFADamfO9YTKkKs=</ds:DigestValue>
 </ds:Reference>
 <ds:Reference URI="#timestamp">
  <ds:Transforms>
   <ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"></ds:Transform>
  </ds:Transforms>
  <ds:DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1"></ds:DigestMethod>
  <ds:DigestValue>YR/fZlwJdw+KbyP24UYiyDv8/Dc=</ds:DigestValue>
 </ds:Reference>
</ds:SignedInfo>

Ater删除了标签之间的所有空格(因此将整个元素放在一行上),我获得了这个sha1摘要(在Base64中):

6l26iBH7il/yrCQW6eEfv/VqAVo =

现在我希望在解密SignatureValue内容后找到相同的摘要,但我得到一个不同且更长的值:

MCEwCQYFKw4DAhoFAAQU3M24VwKG02yUu6jlEH + u6R4N8Ig =

这是decyption的一些java代码:

      DocumentBuilderFactory dbf = DocumentBuilderFactory.newInstance();    
  DocumentBuilder builder = dbf.newDocumentBuilder();  
  Document doc = builder.parse(new File(inputFilePath));
  NodeList nl = doc.getElementsByTagName("ds:SignatureValue");
  if (nl.getLength() == 0) {
     throw new Exception("Cannot find SignatureValue element");
   }
  String signature = "OZg96GMrGh0cEwbpHwv3KDhFtFcnzPxbwp9Xv0pgw8Mr9+NIjRlg/G1OyIZ3SdcOYqqzF4/TVLDi5VclwnjBAFl3SEdkyUbbjXVAGkSsxPQcC4un9UYcecESETlAgV8UrHV3zTrjAWQvDg/YBKveoH90FIhfAthslqeFu3h9U20="; …