public static bool CheckSignature(XmlDocument doc)
{
var nodeList = doc.GetElementsByTagName(
"Security", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
for (var curSignature = 0; curSignature < nodeList.Count; curSignature++)
{
// Создаем объект SignedXml для проверки подписи документа.
var signedXml = new SmevSignedXml(doc);
// Вытаскиваем сертификат из подписи
var certificateNode = ((XmlElement)(nodeList[curSignature])).GetElementsByTagName("BinarySecurityToken",
"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
var rawCertData = Convert.FromBase64String(certificateNode[0].InnerText);
var certificate = new X509Certificate2(rawCertData);
var signature = ((XmlElement)nodeList[curSignature]).GetElementsByTagName("Signature", SignedXml.XmlDsigNamespaceUrl)[0];
signedXml.LoadXml((XmlElement)signature);
// Проверяем подпись
var result = signedXml.CheckSignature(certificate, false);
if (!result)
{
return(false);
}
}
return(true);
}
public static bool CheckSignature(XmlDocument doc)
{
var nodeList = doc.GetElementsByTagName(
"Security", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
for (var curSignature = 0; curSignature < nodeList.Count; curSignature++)
{
// Создаем объект SignedXml для проверки подписи документа.
var signedXml = new SmevSignedXml(doc);
// Вытаскиваем сертификат из подписи
var certificateNode = ((XmlElement)(nodeList[curSignature])).GetElementsByTagName("BinarySecurityToken",
"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
var rawCertData = Convert.FromBase64String(certificateNode[0].InnerText);
var certificate = new X509Certificate2(rawCertData);
var signature = ((XmlElement)nodeList[curSignature]).GetElementsByTagName("Signature", SignedXml.XmlDsigNamespaceUrl)[0];
signedXml.LoadXml((XmlElement)signature);
// Проверяем подпись
var result = signedXml.CheckSignature(certificate, false);
if (!result)
return false;
}
return true;
}
public static string SignMessage(string message, string certificateID, X509Certificate2 certificate)
{
var document = new XmlDocument
{
PreserveWhitespace = false
};
document.LoadXml(message);
// Добавляем XmlDeclaration -не думаю что это необходимо
if (!(document.FirstChild is XmlDeclaration))
{
var declaration = document.CreateXmlDeclaration("1.0", "UTF-8", string.Empty);
document.InsertBefore(declaration, document.FirstChild);
}
// Добавляем необходимые неймспейсы
var ns = new XmlNamespaceManager(document.NameTable);
ns.AddNamespace("s", "http://schemas.xmlsoap.org/soap/envelope/");
var envelope = document.DocumentElement.SelectSingleNode(@"//s:Envelope", ns) as XmlElement;
if (envelope == null)
{
throw new ApplicationException("Не найден тэг Envelope");
}
envelope.SetAttribute("xmlns:wsse", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
envelope.SetAttribute("xmlns:wsu", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
envelope.SetAttribute("xmlns:ds", "http://www.w3.org/2000/09/xmldsig#");
// Ищем body и добавляем ему wsu:Id
var body = document.DocumentElement.SelectSingleNode(@"//s:Body", ns) as XmlElement;
if (body == null)
{
throw new ApplicationException("Не найден тэг Body");
}
body.RemoveAllAttributes();
var id = document.CreateAttribute("wsu", "Id",
"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
id.InnerText = "body";
body.Attributes.Append(id);
// Получаем подпись
var mySignedXml = new SmevSignedXml(document)
{
SigningKey = certificate.PrivateKey
};
var reference = new Reference
{
Uri = "#body",
DigestMethod = "http://www.w3.org/2001/04/xmldsig-more#gostr3411"
};
var excC14Ntransform = new XmlDsigExcC14NTransform();
reference.AddTransform(excC14Ntransform);
mySignedXml.AddReference(reference);
var keyInfo = new KeyInfo();
keyInfo.AddClause(new KeyInfoX509Data(certificate));
mySignedXml.KeyInfo = keyInfo;
mySignedXml.SignedInfo.CanonicalizationMethod = excC14Ntransform.Algorithm;
mySignedXml.SignedInfo.SignatureMethod = "http://www.w3.org/2001/04/xmldsig-more#gostr34102001-gostr3411";
mySignedXml.ComputeSignature("ds");
// Вставляем подпись в сообщение
var namespaceManager = GetNewFilledNamespaceManager(document.NameTable);
document.SelectSingleNode("/s:Envelope", namespaceManager).InsertBefore(document.CreateNode(XmlNodeType.Element, "s", "Header", namespaceManager.LookupNamespace("s")), document.SelectSingleNode("/s:Envelope/s:Body", namespaceManager));
document.SelectSingleNode("/s:Envelope/s:Header", namespaceManager).AppendChild(document.CreateNode(XmlNodeType.Element, "wsse", "Security", namespaceManager.LookupNamespace("wsse"))).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "s", "actor", namespaceManager.LookupNamespace("s"))).InnerText = "http://smev.gosuslugi.ru/actors/smev";
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security", namespaceManager).AppendChild(document.CreateNode(XmlNodeType.Element, "wsse", "BinarySecurityToken", namespaceManager.LookupNamespace("wsse")));
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security", namespaceManager).AppendChild(document.CreateNode(XmlNodeType.Element, "ds", "Signature", namespaceManager.LookupNamespace("ds")));
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/wsse:BinarySecurityToken", namespaceManager).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "EncodingType", "")).InnerText = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary";
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/wsse:BinarySecurityToken", namespaceManager).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "ValueType", "")).InnerText = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3";
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/wsse:BinarySecurityToken", namespaceManager).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "wsu", "Id", namespaceManager.LookupNamespace("wsu"))).InnerText = certificateID;
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/wsse:BinarySecurityToken", namespaceManager).InnerText = mySignedXml.GetXml("ds").SelectSingleNode("/ds:KeyInfo/ds:X509Data/ds:X509Certificate", namespaceManager).InnerText;
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/ds:Signature", namespaceManager).AppendChild(document.ImportNode(mySignedXml.GetXml("ds").SelectSingleNode("/ds:SignedInfo", namespaceManager), true));
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/ds:Signature", namespaceManager).AppendChild(document.ImportNode(mySignedXml.GetXml("ds").SelectSingleNode("/ds:SignatureValue", namespaceManager), true));
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/ds:Signature", namespaceManager).AppendChild(document.CreateNode(XmlNodeType.Element, "ds", "KeyInfo", namespaceManager.LookupNamespace("ds"))).AppendChild(document.CreateNode(XmlNodeType.Element, "wsse", "SecurityTokenReference", namespaceManager.LookupNamespace("wsse"))).AppendChild(document.CreateNode(XmlNodeType.Element, "wsse", "Reference", namespaceManager.LookupNamespace("wsse"))).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "URI", "")).InnerText = "#" + certificateID;
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/ds:Signature/ds:KeyInfo/wsse:SecurityTokenReference/wsse:Reference", namespaceManager).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "ValueType", "")).InnerText = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3";
message = document.OuterXml;
message = message.Replace("<s:Header />", "");
return(message);
}
public static string SignMessage(string message, string certificateID, X509Certificate2 certificate)
{
var document = new XmlDocument
{
PreserveWhitespace = false
};
document.LoadXml(message);
// Добавляем XmlDeclaration -не думаю что это необходимо
if (!(document.FirstChild is XmlDeclaration))
{
var declaration = document.CreateXmlDeclaration("1.0", "UTF-8", string.Empty);
document.InsertBefore(declaration, document.FirstChild);
}
// Добавляем необходимые неймспейсы
var ns = new XmlNamespaceManager(document.NameTable);
ns.AddNamespace("s", "http://schemas.xmlsoap.org/soap/envelope/");
var envelope = document.DocumentElement.SelectSingleNode(@"//s:Envelope", ns) as XmlElement;
if (envelope == null)
{
throw new ApplicationException("Не найден тэг Envelope");
}
envelope.SetAttribute("xmlns:wsse", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd");
envelope.SetAttribute("xmlns:wsu", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
envelope.SetAttribute("xmlns:ds", "http://www.w3.org/2000/09/xmldsig#");
// Ищем body и добавляем ему wsu:Id
var body = document.DocumentElement.SelectSingleNode(@"//s:Body", ns) as XmlElement;
if (body == null)
throw new ApplicationException("Не найден тэг Body");
body.RemoveAllAttributes();
var id = document.CreateAttribute("wsu", "Id",
"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");
id.InnerText = "body";
body.Attributes.Append(id);
// Получаем подпись
var mySignedXml = new SmevSignedXml(document)
{
SigningKey = certificate.PrivateKey
};
var reference = new Reference
{
Uri = "#body",
DigestMethod = "http://www.w3.org/2001/04/xmldsig-more#gostr3411"
};
var excC14Ntransform = new XmlDsigExcC14NTransform();
reference.AddTransform(excC14Ntransform);
mySignedXml.AddReference(reference);
var keyInfo = new KeyInfo();
keyInfo.AddClause(new KeyInfoX509Data(certificate));
mySignedXml.KeyInfo = keyInfo;
mySignedXml.SignedInfo.CanonicalizationMethod = excC14Ntransform.Algorithm;
mySignedXml.SignedInfo.SignatureMethod = "http://www.w3.org/2001/04/xmldsig-more#gostr34102001-gostr3411";
mySignedXml.ComputeSignature("ds");
// Вставляем подпись в сообщение
var namespaceManager = GetNewFilledNamespaceManager(document.NameTable);
document.SelectSingleNode("/s:Envelope", namespaceManager).InsertBefore(document.CreateNode(XmlNodeType.Element, "s", "Header", namespaceManager.LookupNamespace("s")), document.SelectSingleNode("/s:Envelope/s:Body", namespaceManager));
document.SelectSingleNode("/s:Envelope/s:Header", namespaceManager).AppendChild(document.CreateNode(XmlNodeType.Element, "wsse", "Security", namespaceManager.LookupNamespace("wsse"))).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "s", "actor", namespaceManager.LookupNamespace("s"))).InnerText = "http://smev.gosuslugi.ru/actors/smev";
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security", namespaceManager).AppendChild(document.CreateNode(XmlNodeType.Element, "wsse", "BinarySecurityToken", namespaceManager.LookupNamespace("wsse")));
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security", namespaceManager).AppendChild(document.CreateNode(XmlNodeType.Element, "ds", "Signature", namespaceManager.LookupNamespace("ds")));
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/wsse:BinarySecurityToken", namespaceManager).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "EncodingType", "")).InnerText = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary";
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/wsse:BinarySecurityToken", namespaceManager).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "ValueType", "")).InnerText = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3";
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/wsse:BinarySecurityToken", namespaceManager).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "wsu", "Id", namespaceManager.LookupNamespace("wsu"))).InnerText = certificateID;
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/wsse:BinarySecurityToken", namespaceManager).InnerText = mySignedXml.GetXml("ds").SelectSingleNode("/ds:KeyInfo/ds:X509Data/ds:X509Certificate", namespaceManager).InnerText;
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/ds:Signature", namespaceManager).AppendChild(document.ImportNode(mySignedXml.GetXml("ds").SelectSingleNode("/ds:SignedInfo", namespaceManager), true));
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/ds:Signature", namespaceManager).AppendChild(document.ImportNode(mySignedXml.GetXml("ds").SelectSingleNode("/ds:SignatureValue", namespaceManager), true));
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/ds:Signature", namespaceManager).AppendChild(document.CreateNode(XmlNodeType.Element, "ds", "KeyInfo", namespaceManager.LookupNamespace("ds"))).AppendChild(document.CreateNode(XmlNodeType.Element, "wsse", "SecurityTokenReference", namespaceManager.LookupNamespace("wsse"))).AppendChild(document.CreateNode(XmlNodeType.Element, "wsse", "Reference", namespaceManager.LookupNamespace("wsse"))).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "URI", "")).InnerText = "#" + certificateID;
document.SelectSingleNode("/s:Envelope/s:Header/wsse:Security/ds:Signature/ds:KeyInfo/wsse:SecurityTokenReference/wsse:Reference", namespaceManager).Attributes.SetNamedItem(document.CreateNode(XmlNodeType.Attribute, "ValueType", "")).InnerText = "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-x509-token-profile-1.0#X509v3";
message = document.OuterXml;
message = message.Replace("<s:Header />", "");
return message;
}