<wsHttpBinding>
<binding name="NewBinding1">
    <security mode="Message">
       <!-- Аутентификация клиента по сертификату. -->
       <message clientCredentialType="Certificate" algorithmSuite="BasicGost"/>
    </security>
</binding>
</wsHttpBinding>

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/"><s:Header><h:ISRequestHeader xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/organizations-registry/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:h="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/organizations-registry/"><Date xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/">2015-11-20T17:34:21.7721354+03:00</Date><MessageGUID xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/">d1bcdf33-6e72-40c7-8b2b-7ffa58c948be</MessageGUID></h:ISRequestHeader></s:Header><s:Body xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:xsd="http://www.w3.org/2001/XMLSchema"><exportOrgRegistryRequest Id="signed-data-container" xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/organizations-registry/"><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/2001/04/xmldsig-more#gostr34102001-gostr3411" /><Reference URI="#signed-data-container"><Transforms><Transform Algorithm="http://www.w3.org/2000/09/xmldsig#enveloped-signature" /><Transform Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#" /></Transforms><DigestMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#gostr3411" /><DigestValue>G08g1fSyPC68ggOv2VlDH1UB5SOm46U/+7DI875ttOg=</DigestValue></Reference></SignedInfo><SignatureValue>VMXzGqtho38tVKLe6UUAoOhePLkOeFnLrd8DrsU8N0WeHoiUMGKJh/qj+8YL4J6iBzmn3eUZyYma2kWZS3+2bQ==</SignatureValue><KeyInfo><X509Data><X509Certificate>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</X509Certificate></X509Data></KeyInfo></Signature><SearchCriteria><OGRN xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/">3333333333444</OGRN></SearchCriteria></exportOrgRegistryRequest></s:Body></s:Envelope>

<ns2:ErrorCode>AUTH01105</ns2:ErrorCode>
            <ns2:Description>Ошибка формата подписи запроса</ns2:Description>
            <ns2:StackTrace>ru.lanit.hcs.integration.common.exception.OperationProcessorException: ЭП не прошла проверку: Invalid XML Signature
	at ru.lanit.hcs.integration.common.spring.service.impl.ValidationServiceImpl.validateSignature(ValidationServiceImpl.java:91)

  public static Boolean VerifyXmlFile(String xml, string signatureTagName = "Signature")
        {
            // Create a new XML document.
            XmlDocument xmlDocument = new XmlDocument();

            // Format using white spaces.
            xmlDocument.PreserveWhitespace = true;

            // Load the passed XML file into the document. 
            xmlDocument.LoadXml(xml);

            // Create a new SignedXml object and pass it
            // the XML document class.
            SignedXml signedXml = new SignedXml(xmlDocument);

            // Find the "Signature" node and create a new
            // XmlNodeList object.
            XmlNodeList nodeList = xmlDocument.GetElementsByTagName(signatureTagName);

            // Load the signature node.
            signedXml.LoadXml((XmlElement)nodeList[0]);

            foreach (KeyInfoClause kl in signedXml.KeyInfo)
            {
                KeyInfoX509Data data = kl as KeyInfoX509Data;
                if (data != null)
                {
                    foreach (X509Certificate2 cert in data.Certificates)
                        Console.WriteLine(cert.Subject);
                }
            }

            // Check the signature and return the result.
            AsymmetricAlgorithm signingKey;
            bool res = signedXml.CheckSignatureReturningKey(out signingKey);
            if (signingKey == null)
                throw new ApplicationException("Не удалось распознать алгоритм шифрования");
            return res;
        }

<s:Envelope xmlns:s="http://schemas.xmlsoap.org/soap/envelope/">
  <s:Header>
      <h:ISRequestHeader xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/organizations-registry/" xmlns:h="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/organizations-registry/" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
      <Date xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/">2015-11-19T16:45:17.9255863+03:00</Date>
      <MessageGUID xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/">7b73262b-6a9e-45d9-84d6-f78fff522114</MessageGUID>
    </h:ISRequestHeader>
  </s:Header>
  <s:Body xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
    <exportOrgRegistryRequest Id="signed-data-container" xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/organizations-registry/"><ds:Signature Id="xmldsig-609d7571-6573-4be0-97ea-91bf6c27523c" xmlns:ds="http://www.w3.org/2000/09/xmldsig#"><ds:SignedInfo><ds:CanonicalizationMethod Algorithm="http://www.w3.org/TR/2001/REC-xml-c14n-20010315"/><ds:SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#gostr34102001-gostr3411"/><ds:Reference URI="#signed-data-container"><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#"/></ds:Transforms><ds:DigestMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#gostr3411"/><ds:DigestValue>+M/mr5i/71hDY5RgZ3DBKVh0UI2pM4yS/0QgU+4VbR4=</ds:DigestValue></ds:Reference></ds:SignedInfo><ds:SignatureValue>8v60GwL0lQuUGGzodNHObJFaDxxWvPgzhZRJ2yRsqPV0dc1ydxbI5G4yNaNL8i3K9du3SxKa1Fyv82XKidzrUg==</ds:SignatureValue><ds:KeyInfo><ds:X509Data><ds:X509Certificate>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</ds:X509Certificate></ds:X509Data></ds:KeyInfo></ds:Signature>
      <SearchCriteria>
        <OGRN xmlns="http://dom.gosuslugi.ru/schema/integration/7.0.0.10/">3333333333444</OGRN>
      </SearchCriteria>
    </exportOrgRegistryRequest>
  </s:Body>
</s:Envelope>