SignedXml.CheckSignature在.NET 1.1中工作，但在.NET 3.5中失败

Question

我有以下SignedXml代码。这段代码在.NET 1.1中运行得很好，但是当我在.NET 3.5中运行它时，signedXml.CheckSignature()方法一直返回false。关于SignedXml 的类，在.Net 1.1和3.5之间做了一些改变吗？--我在这里很困惑！你们能帮帮我吗？

        SignedXml signedXml = new SignedXml();

        // Get public key
        Assembly assembly = Assembly.LoadFile("MyLib.Application.dll");
        Stream keyStream =
            assembly.GetManifestResourceStream("MyKey.xml");
        StreamReader keyReader = new StreamReader(keyStream, Encoding.UTF8);
        string publicKeyXml = keyReader.ReadToEnd();
        keyReader.Close();

        // Load and set key
        DSA dsaKeyPair = DSA.Create();
        dsaKeyPair.FromXmlString(publicKeyXml);
        KeyInfo keyInfo = new KeyInfo();
        keyInfo.AddClause(new DSAKeyValue(dsaKeyPair));
        signedXml.KeyInfo = keyInfo;


        // Load and set data
        XmlDocument xmlDocument = new XmlDocument();
        xmlDocument.PreserveWhitespace = true;
        xmlDocument.LoadXml(signedXmlData);

        XmlNodeList nodeList = xmlDocument.GetElementsByTagName("Signature");
        signedXml.LoadXml((XmlElement)nodeList[0]);

        string returnXml = null;
        if (signedXml.CheckSignature())
        {
            XmlElement dataElement = signedXml.GetIdElement(xmlDocument, "LicenseElement");
            returnXml = dataElement.InnerXml;
        }

Answer 1

我发现signedXml.KeyInfo = keyInfo；是我的问题所在。当我使用键作为CheckSignature()的参数时，它起了作用--我能够在一个2.0应用程序中加载1.1SignedXML。

只需完全删除KeyInfo：

  string returnXml = null;
    if (signedXml.CheckSignature(dsaKeyPair))
    {
        XmlElement dataElement = signedXml.GetIdElement(xmlDocument, "LicenseElement");
        returnXml = dataElement.InnerXml;
    }