Question

我有一些XML签名验证代码，它适用于我拥有的所有SAML XML示例，除了一个。失败的那个有多个签名。它在第一次签名时成功，在第二次签名时失败。

然后我想，如果我交换签名怎么办？在第一个场景中，签名A是第一个，签名B是第二个。代码验证签名A并在签名B上失败。如果我交换它们使得签名B是第一个，则代码验证签名B但在签名A上失败！因此，代码似乎能够独立地验证这两个签名，但是当它位于某个位置时会失败。

现在我知道这个saml响应是有效的，你可以在samltool.com上看到自己。唯一的问题是代码在某些情况下无法验证签名，我不确定原因。

public static int isValidSignature(string encodedXml, string key)
{
    int ret = 0;

    string xml = Encoding.UTF8.GetString(Convert.FromBase64String(encodedXml));

    XmlDocument xmlDoc = new XmlDocument();
    xmlDoc.PreserveWhitespace = true;
    xmlDoc.LoadXml(xml);

    X509Certificate2 cert = new X509Certificate2(Convert.FromBase64String(key));

    SignedXml signedXml = new SignedXml(xmlDoc);

    //XmlNodeList nodeList = xmlDoc.GetElementsByTagName("ds:Signature");
    NameTable nt = new NameTable();
    XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);
    nsmgr.AddNamespace("ds", "http://www.w3.org/2000/09/xmldsig#");

    XmlNodeList nodeList = xmlDoc.SelectNodes(".//ds:Signature", nsmgr);

    if (nodeList.Count == 0)
    {
        ret = -1;
    }
    else
    {
        foreach (XmlNode node in nodeList) {
            signedXml.LoadXml((XmlElement)node);

            if (signedXml.CheckSignature(cert, true))
            {
                ret = 1;
            }
            else if(ret == 1)
            {
                ret = -2;
                break;
            }
        }
    }

    return ret;
}

下面的代码测试了两件事：原始XML，交换了签名的XML。我还测试了另外两件事但他们不适合这个问题：只有外部签名的XML（返回1），以及只有内部签名的XML（返回0）。

string oktaKey = "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";
string oktaSample = "<?xml version="1.0" encoding="UTF-8"?><saml2p:Response xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol" Destination="https://grape/simplesaml/module.php/saml/sp/saml2-acs.php/default-sp" ID="id58960646148927191448194556" InResponseTo="_e3ef190f43999b6bc174038b3545809edaab9327b6" IssueInstant="2018-05-07T21:39:23.613Z" Version="2.0" xmlns:xs="http://www.w3.org/2001/XMLSchema"><saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">http://www.okta.com/exkexq2dmyQ4szmMh0h7</saml2:Issuer><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><ds:Reference URI="#id58960646148927191448194556"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"><ec:InclusiveNamespaces xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="xs"/></ds:Transform></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><ds:DigestValue>UY0C7u+ZZmQcQBdbfFfabiQwgSLuWB2Xo/SUfkgq270=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>FOeocP3IBhwkWgrIDL4FN5TlRMOsdn4QTWIW7uu9IyzqPWFkty36mjg4wwsNaiUg9QUy8IyMSnwUL7NRkyyOKjDVDZvBk5pV4MRgmIr9+lauURsObC/+83mvA3LPZkMRDe7a0DOCblCeuMDHOe3EYUjupLQJqaoLrsLrJRHHlWUR5hfra2KocBdxrttr3io5wMq0kvGouNzk+7ky7iU34Bof9tc0djtZE4ijRai5Pd30jIhcxjbSzp1WXnIV+x9O/cw3jbDHVb3AlB2/J2b1xj0VxaiEu9E0PnzmFsNLfAX/tc3/CyMOvAlCX4NWQF3HPh+sXo4L29BiZ2x1e4ipdw==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate>MIIDpDCCAoygAwIBAgIGAVyqFlFgMA0GCSqGSIb3DQEBCwUAMIGSMQswCQYDVQQGEwJVUzETMBEG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</ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature><saml2p:Status xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol"><saml2p:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success"/></saml2p:Status><saml2:Assertion xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" ID="id5896064614932426816324796" IssueInstant="2018-05-07T21:39:23.613Z" Version="2.0" xmlns:xs="http://www.w3.org/2001/XMLSchema"><saml2:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">http://www.okta.com/exkexq2dmyQ4szmMh0h7</saml2:Issuer><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><ds:Reference URI="#id5896064614932426816324796"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"><ec:InclusiveNamespaces xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="xs"/></ds:Transform></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><ds:DigestValue>8SxkP903aFNWqCdQ61MBCXa+eS+zSA3E7eSw4lhTtSI=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>aDm8Ltlq5TUEiBC2zvyIsK4Dz1th6z+8MywVHAbXIB4H4lb+/ETweBjbIfLP7+luERn1FgV85jDBJB5zA+oxsE/UVi2piuFjLwd9XmNz7ISabVjSOjdGtCJ5HbO3dHiq/wA88jS9iChrEKbysez7dsEqD8s+zBJKkocoxj9BRb+0rt/nnicn+WjYWGF4VvvStiwWcGZ+FJ6qgvpcXIPSkIkvev77X4GicY99xSU4ydNuFfX7si/3+UEk7OpCo2gCZh9JqpFfNSq71dad5BDD4s255oidaJ2+E70Y5KVb7mcE4rf6EBqGzfZHaFYgLsfzNKl1sNBOynlqeUxo1SCq+A==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate>MIIDpDCCAoygAwIBAgIGAVyqFlFgMA0GCSqGSIb3DQEBCwUAMIGSMQswCQYDVQQGEwJVUzETMBEG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</ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature><saml2:Subject xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified">fake@fake.net</saml2:NameID><saml2:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer"><saml2:SubjectConfirmationData InResponseTo="_e3ef190f43999b6bc174038b3545809edaab9327b6" NotOnOrAfter="2018-05-07T21:44:23.613Z" Recipient="https://grape/simplesaml/module.php/saml/sp/saml2-acs.php/default-sp"/></saml2:SubjectConfirmation></saml2:Subject><saml2:Conditions NotBefore="2018-05-07T21:34:23.613Z" NotOnOrAfter="2018-05-07T21:44:23.613Z" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:AudienceRestriction><saml2:Audience>https://grape/simplesaml/module.php/saml/sp/metadata.php/default-sp</saml2:Audience></saml2:AudienceRestriction></saml2:Conditions><saml2:AuthnStatement AuthnInstant="2018-05-07T21:38:26.334Z" SessionIndex="_e3ef190f43999b6bc174038b3545809edaab9327b6" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:AuthnContext><saml2:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml2:AuthnContextClassRef></saml2:AuthnContext></saml2:AuthnStatement><saml2:AttributeStatement xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:Attribute Name="EmailAddress" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified"><saml2:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">fake@fake.net</saml2:AttributeValue></saml2:Attribute></saml2:AttributeStatement></saml2:Assertion></saml2p:Response>";
string oktaSample2 = "<?xml version="1.0" encoding="UTF-8"?><saml2p:Response xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol" Destination="https://grape/simplesaml/module.php/saml/sp/saml2-acs.php/default-sp" ID="id58960646148927191448194556" InResponseTo="_e3ef190f43999b6bc174038b3545809edaab9327b6" IssueInstant="2018-05-07T21:39:23.613Z" Version="2.0" xmlns:xs="http://www.w3.org/2001/XMLSchema"><saml2:Issuer xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity">http://www.okta.com/exkexq2dmyQ4szmMh0h7</saml2:Issuer><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><ds:Reference URI="#id5896064614932426816324796"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"><ec:InclusiveNamespaces xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="xs"/></ds:Transform></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><ds:DigestValue>8SxkP903aFNWqCdQ61MBCXa+eS+zSA3E7eSw4lhTtSI=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>aDm8Ltlq5TUEiBC2zvyIsK4Dz1th6z+8MywVHAbXIB4H4lb+/ETweBjbIfLP7+luERn1FgV85jDBJB5zA+oxsE/UVi2piuFjLwd9XmNz7ISabVjSOjdGtCJ5HbO3dHiq/wA88jS9iChrEKbysez7dsEqD8s+zBJKkocoxj9BRb+0rt/nnicn+WjYWGF4VvvStiwWcGZ+FJ6qgvpcXIPSkIkvev77X4GicY99xSU4ydNuFfX7si/3+UEk7OpCo2gCZh9JqpFfNSq71dad5BDD4s255oidaJ2+E70Y5KVb7mcE4rf6EBqGzfZHaFYgLsfzNKl1sNBOynlqeUxo1SCq+A==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate>MIIDpDCCAoygAwIBAgIGAVyqFlFgMA0GCSqGSIb3DQEBCwUAMIGSMQswCQYDVQQGEwJVUzETMBEG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</ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature><saml2p:Status xmlns:saml2p="urn:oasis:names:tc:SAML:2.0:protocol"><saml2p:StatusCode Value="urn:oasis:names:tc:SAML:2.0:status:Success"/></saml2p:Status><saml2:Assertion xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion" ID="id5896064614932426816324796" IssueInstant="2018-05-07T21:39:23.613Z" Version="2.0" xmlns:xs="http://www.w3.org/2001/XMLSchema"><saml2:Issuer Format="urn:oasis:names:tc:SAML:2.0:nameid-format:entity" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion">http://www.okta.com/exkexq2dmyQ4szmMh0h7</saml2:Issuer><ds:Signature xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#rsa-sha256"/><ds:Reference URI="#id58960646148927191448194556"><ds:Transforms><ds:Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature"/><ds:Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"><ec:InclusiveNamespaces xmlns:ec="http://www.w3.org/2001/10/xml-exc-c14n#" PrefixList="xs"/></ds:Transform></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmlenc#sha256"/><ds:DigestValue>UY0C7u+ZZmQcQBdbfFfabiQwgSLuWB2Xo/SUfkgq270=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>FOeocP3IBhwkWgrIDL4FN5TlRMOsdn4QTWIW7uu9IyzqPWFkty36mjg4wwsNaiUg9QUy8IyMSnwUL7NRkyyOKjDVDZvBk5pV4MRgmIr9+lauURsObC/+83mvA3LPZkMRDe7a0DOCblCeuMDHOe3EYUjupLQJqaoLrsLrJRHHlWUR5hfra2KocBdxrttr3io5wMq0kvGouNzk+7ky7iU34Bof9tc0djtZE4ijRai5Pd30jIhcxjbSzp1WXnIV+x9O/cw3jbDHVb3AlB2/J2b1xj0VxaiEu9E0PnzmFsNLfAX/tc3/CyMOvAlCX4NWQF3HPh+sXo4L29BiZ2x1e4ipdw==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate>MIIDpDCCAoygAwIBAgIGAVyqFlFgMA0GCSqGSIb3DQEBCwUAMIGSMQswCQYDVQQGEwJVUzETMBEG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</ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature><saml2:Subject xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:NameID Format="urn:oasis:names:tc:SAML:1.1:nameid-format:unspecified">fake@fake.net</saml2:NameID><saml2:SubjectConfirmation Method="urn:oasis:names:tc:SAML:2.0:cm:bearer"><saml2:SubjectConfirmationData InResponseTo="_e3ef190f43999b6bc174038b3545809edaab9327b6" NotOnOrAfter="2018-05-07T21:44:23.613Z" Recipient="https://grape/simplesaml/module.php/saml/sp/saml2-acs.php/default-sp"/></saml2:SubjectConfirmation></saml2:Subject><saml2:Conditions NotBefore="2018-05-07T21:34:23.613Z" NotOnOrAfter="2018-05-07T21:44:23.613Z" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:AudienceRestriction><saml2:Audience>https://grape/simplesaml/module.php/saml/sp/metadata.php/default-sp</saml2:Audience></saml2:AudienceRestriction></saml2:Conditions><saml2:AuthnStatement AuthnInstant="2018-05-07T21:38:26.334Z" SessionIndex="_e3ef190f43999b6bc174038b3545809edaab9327b6" xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:AuthnContext><saml2:AuthnContextClassRef>urn:oasis:names:tc:SAML:2.0:ac:classes:PasswordProtectedTransport</saml2:AuthnContextClassRef></saml2:AuthnContext></saml2:AuthnStatement><saml2:AttributeStatement xmlns:saml2="urn:oasis:names:tc:SAML:2.0:assertion"><saml2:Attribute Name="EmailAddress" NameFormat="urn:oasis:names:tc:SAML:2.0:attrname-format:unspecified"><saml2:AttributeValue xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:type="xs:string">fake@fake.net</saml2:AttributeValue></saml2:Attribute></saml2:AttributeStatement></saml2:Assertion></saml2p:Response>";

Debug.WriteLine(MyXml2.isValidSignature(oktaSample, oktaKey)); // prints -2
Debug.WriteLine(MyXml2.isValidSignature(oktaSample2, oktaKey)); // prints -2

Answer 1

感谢您的发现。它解决了我的saml验证问题！没有自定义转换的替代解决方法：

  var signedXml = new SignedXml(doc);
  var isValid = doc.GetElementsByTagName("Signature", "http://www.w3.org/2000/09/xmldsig#")
                      .OfType<XmlElement>()
                      .ToArray()
                      .All(e =>
                      {
                          //workaround - remove the signature element here.
                          e.ParentNode.RemoveChild(e);
                          signedXml.LoadXml(e);
                          return signedXml.CheckSignature(cert, true);
                      });

注意：原始的xml文档对象已更改（此调用后的签名）。

Answer 2

安德鲁！我肯定会回答你的很多问题。

好的，首先，第二个示例不起作用，因为您修改XML的方式使签名不匹配。

因此，在Googling有关调试此代码的提示时，我偶然发现了this page，其中介绍了如何查看SignedXml的日志记录。要将其添加到标记：

下的App.config中

<system.diagnostics>
  <sources>
    <source name="System.Security.Cryptography.Xml.SignedXml" switchName="XmlDsigLogSwitch">
      <listeners>
        <add name="logFile" />
      </listeners>
    </source>
  </sources>
  <switches>
    <add name="XmlDsigLogSwitch" value="Verbose" />
  </switches>
  <sharedListeners>
    <add name="logFile" type="System.Diagnostics.TextWriterTraceListener" initializeData="XmlDsigLog.txt"/>
  </sharedListeners>
  <trace autoflush="true">
    <listeners>
      <add name="logFile" />
    </listeners>
  </trace>
</system.diagnostics>

从这个和你的代码我能够推断出规范化对于第二个签名没有正常工作。具体来说，它无法删除签名标记本身。这在验证签名时很重要，因为签名本身不是签名信息的一部分。如果是的话，你会在这里，直到太阳烧毁，试图找到一个包含自己的签名。

现在我相信这是C＃实现中的一个错误，但我并不像编写C＃的人那么聪明，所以我可能错了。但这是一个解决方法。我添加了自己的类，扩展了XmlDsigExcC14NTransform，这是由几个Google结果提出的，但问题略有不同。在该类的LoadInput方法中，我删除了该节点。从那里，一切都很愉快！

public class SigKillXmlDsigExcC14NTransform : XmlDsigExcC14NTransform
{
    public SigKillXmlDsigExcC14NTransform() { }

    public override void LoadInput(Object obj)
    {
        XmlElement root = ((XmlDocument)obj).DocumentElement;
        NameTable nt = new NameTable();
        XmlNamespaceManager nsmgr = new XmlNamespaceManager(nt);
        nsmgr.AddNamespace("ds", "http://www.w3.org/2000/09/xmldsig#");
        XmlNodeList childSignatures = root.SelectNodes("./ds:Signature", nsmgr);

        // Sometimes C# fails to remove the child node.  Let's hold his hand and do it for him.
        foreach (XmlNode oneChild in childSignatures)
        {
            oneChild.ParentNode.RemoveChild(oneChild);
        }

        base.LoadInput(obj);
    }
}

从那里为原始代码添加一行，其余部分保持不变。

CryptoConfig.AddAlgorithm(typeof(SigKillXmlDsigExcC14NTransform), "http://www.w3.org/2001/10/xml-exc-c14n#");

现在第一个例子有效！

使用多个签名验证带有C＃的签名XML

2 个答案: