C# 如何使用X509证书对xml进行签名,向xml模板添加摘要值和签名
我是C#的新手,尤其是刚刚与X509签约。我有一个xml模板,我必须在其中添加使用的证书(完成),并签署时间戳(TS-1)、二进制安全令牌和主体(id-1)。 此外,我需要用这3个元素的摘要值编写(例如替换占位符),并添加签名值 然而,我并不真正理解这一概念,例如如何做到这一点。我读了一些网站,例如。 但我无法使代码适应我的问题 以下是我尝试过的:C# 如何使用X509证书对xml进行签名,向xml模板添加摘要值和签名,c#,xml,x509,sign,digest,C#,Xml,X509,Sign,Digest,我是C#的新手,尤其是刚刚与X509签约。我有一个xml模板,我必须在其中添加使用的证书(完成),并签署时间戳(TS-1)、二进制安全令牌和主体(id-1)。 此外,我需要用这3个元素的摘要值编写(例如替换占位符),并添加签名值 然而,我并不真正理解这一概念,例如如何做到这一点。我读了一些网站,例如。 但我无法使代码适应我的问题 以下是我尝试过的: public static string SignXml(string template) { XmlDocument document
public static string SignXml(string template)
{
XmlDocument document = new XmlDocument();
document.LoadXml(template);
// define elements that will be signed
XmlNode securityToken = null;
XmlNode validityPeriod = null;
XmlNode body = null;
XmlNode signedInfo = null;
XmlNode signatureValue = null;
XmlNodeList digestTags = null;
XmlNamespaceManager namespaces = new XmlNamespaceManager(document.NameTable);
namespaces.AddNamespace("ns", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
namespaces.AddNamespace("nu", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
namespaces.AddNamespace("bo", "http://schemas.xmlsoap.org/soap/envelope/");
namespaces.AddNamespace("si", "http://www.w3.org/2000/09/xmldsig#");
namespaces.AddNamespace("sinfo", "soapenv xd xe");
document.LoadXml(template);
//XmlNode idNode = document.SelectSingleNode("/My_RootNode/ns:id", namespaces);
securityToken = document.SelectSingleNode("descendant::ns:BinarySecurityToken", namespaces);
validityPeriod = document.SelectSingleNode("descendant::nu:Timestamp", namespaces);
body = document.SelectSingleNode("descendant::bo:Body", namespaces);
signedInfo = document.SelectSingleNode("descendant::si:SignedInfo", namespaces);
signatureValue = document.SelectSingleNode("descendant::si::sinfo:SignatureValue", namespaces);
digestTags = document.SelectNodes("descendant::si:DigestValue", namespaces);
// add the digests (to know where to write the digests)
String nodeName = null;
for (int counter = 0; counter < digestTags.Count; counter++)
{
nodeName = digestTags[counter].FirstChild.InnerText;
if (WebserviceConstants.PLACEHOLDER_AUTHNREQUEST_DIGEST.Equals(nodeName))
{
generateDigest(body, digestTags[counter]);
}
else if (WebserviceConstants.PLACEHOLDER_CERTIFICATE_DIGEST.Equals(nodeName))
{
generateDigest(securityToken, digestTags[counter]);
}
else if (WebserviceConstants.PLACEHOLDER_TIMESTAMP_TAG_DIGEST.Equals(nodeName))
{
generateDigest(validityPeriod, digestTags[counter]);
}
}
SignedXml signedXml = new SignedXml(document);
X509Certificate2 cert = new X509Certificate2();
cert = getbase();
signedXml.SigningKey = cert.PrivateKey;
// Create a reference to be signed.
Reference reference = new Reference();
reference.Uri = "#TS-1";
// Add an enveloped transformation to the reference.
XmlDsigEnvelopedSignatureTransform env =
new XmlDsigEnvelopedSignatureTransform(true);
reference.AddTransform(env);
//canonicalize
XmlDsigC14NTransform c14t = new XmlDsigC14NTransform();
reference.AddTransform(c14t);
KeyInfo keyInfo = new KeyInfo();
KeyInfoX509Data keyInfoData = new KeyInfoX509Data(cert);
KeyInfoName kin = new KeyInfoName();
kin.Value = "Public key of certificate";
RSACryptoServiceProvider rsaprovider = (RSACryptoServiceProvider)cert.PublicKey.Key;
RSAKeyValue rkv = new RSAKeyValue(rsaprovider);
keyInfo.AddClause(kin);
keyInfo.AddClause(rkv);
keyInfo.AddClause(keyInfoData);
signedXml.KeyInfo = keyInfo;
// Add the reference to the SignedXml object.
signedXml.AddReference(reference);
// Compute the signature.
signedXml.ComputeSignature();
// Get the XML representation of the signature and save
// it to an XmlElement object.
XmlElement xmlDigitalSignature = signedXml.GetXml();
document.DocumentElement.AppendChild(
document.ImportNode(xmlDigitalSignature, true));
document.DocumentElement.AppendChild(document.ImportNode(xmlDigitalSignature, true));
return document.OuterXml;
}
}
publicstaticstringsignxml(字符串模板)
{
XmlDocument document=新的XmlDocument();
document.LoadXml(模板);
//定义将被签名的元素
XmlNode securityToken=null;
XmlNode validityPeriod=null;
xmlnodebody=null;
XmlNode signedInfo=null;
XmlNode signatureValue=null;
XmlNodeList digestTags=null;
XmlNamespaceManager名称空间=新的XmlNamespaceManager(document.NameTable);
namespaces.AddNamespace(“ns”http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
namespaces.AddNamespace(“nu”http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
namespaces.AddNamespace(“bo”http://schemas.xmlsoap.org/soap/envelope/");
namespaces.AddNamespace(“si”http://www.w3.org/2000/09/xmldsig#");
addNamespaces(“sinfo”、“soapenv xd xe”);
document.LoadXml(模板);
//XmlNode idNode=document.SelectSingleNode(“/My\u RootNode/ns:id”,名称空间);
securityToken=document.SelectSingleNode(“后代::ns:BinarySecurityToken”,名称空间);
validityPeriod=document.SelectSingleNode(“后代::nu:Timestamp”,名称空间);
body=document.SelectSingleNode(“后代::bo:body”,名称空间);
signedInfo=document.SelectSingleNode(“后代::si:signedInfo”,名称空间);
signatureValue=document.SelectSingleNode(“后代::si::sinfo:signatureValue”,名称空间);
digestTags=document.SelectNodes(“后代::si:DigestValue”,名称空间);
//添加摘要(知道在哪里写摘要)
字符串nodeName=null;
对于(int counter=0;counter
我在问自己:
- 如何获取摘要值以及如何将其写入相应的xml节点
- 如何计算签名值,因为它“包含”所有3个引用的签名信息
谢谢您不必手动创建签名的节点,在计算签名后,您可以调用GetXml方法(您已经在这样做了:signedXml.GetXml()),这将返回如下内容:
<Signature xmlns="http://www.w3.org/2000/09/xmldsig#">
<SignedInfo>
<CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
<SignatureMethod Algorithm="http://www.w3.org/2000/09/xmldsig#rsa-sha1" />
<Reference URI="">
<Transforms>
<Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" />
<Transform Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315" />
</Transforms>
<DigestMethod Algorithm="http://www.w3.org/2000/09/xmldsig#sha1" />
<DigestValue>zRSPtja5EtX7hVbyJ11EjoYTRDk=</DigestValue>
</Reference>
</SignedInfo>
<SignatureValue>Ua1/WP28WzfXaxUj....</SignatureValue>
<KeyInfo>
<X509Data>
<X509Certificate>MIIF3jCCBUegAwIBAgIEPQa1....</X509Certificate>
</X509Data>
</KeyInfo>
</Signature>
XmlElement e = this.SignedInfo.GetXml(); //get the signedinfo nodes
document.AppendChild(document.ImportNode(e, true));
Transform canonicalizationMethodObject=this.SignedInfo.CanonicalizationMethodObject;
canonicalizationMethodObject.LoadInput(document);
canonicalizationMethodObject.GetDigestedOutput(hash); //digest the signedinfo node