При взаимодействии с сервисом запрос уходит нормально. При получении ответа возникает ошибка: System.Security.Cryptography.CryptographicException: Неподдерживаемое преобразование или алгоритм канонизации.
Используется WS2007HttpBinding, GostAlgorithmSuite.BasicGostObsolete, КриптоПро 3.9.8171, КриптоПро .NET 1.0.5320.0


Подозреваю проблема в этих строчках
<SignedInfo>
<CanonicalizationMethod Algorithm="http://www.w3.org/2001/10/xml-exc-c14n#"/>
<SignatureMethod Algorithm="http://www.w3.org/2001/04/xmldsig-more#gostr34102001-gostr3411"/>
<Reference URI="#BODY-c6ec83f8-e6fd-32d0-b4ab-a047550382a6">
<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>HEhKHV849t+MO+hAnSCRaQo0e0m0qBX7hejqv/x6CFA=</DigestValue>
</Reference>

В какую сторону копать?

в System.IdentityModel.StandardTransformFactory.CreateTransform(String transformAlgorithmUri)
в System.IdentityModel.TransformChain.ReadFrom(XmlDictionaryReader reader, TransformFactory transformFactory, DictionaryManager dictionaryManager, Boolean preserveComments)
в System.IdentityModel.Reference.ReadFrom(XmlDictionaryReader reader, TransformFactory transformFactory, DictionaryManager dictionaryManager)
в System.IdentityModel.StandardSignedInfo.ReadFrom(XmlDictionaryReader reader, TransformFactory transformFactory, DictionaryManager dictionaryManager)
в System.IdentityModel.Signature.ReadFrom(XmlDictionaryReader reader, DictionaryManager dictionaryManager)
в System.ServiceModel.Security.WSSecurityOneDotZeroReceiveSecurityHeader.ReadSignatureCore(XmlDictionaryReader signatureReader)
в System.ServiceModel.Security.ReceiveSecurityHeader.ReadSignature(XmlDictionaryReader reader, Int32 position, Byte[] decryptedBuffer)
в System.ServiceModel.Security.ReceiveSecurityHeader.ExecuteFullPass(XmlDictionaryReader reader)
в System.ServiceModel.Security.ReceiveSecurityHeader.Process(TimeSpan timeout, ChannelBinding channelBinding, ExtendedProtectionPolicy extendedProtectionPolicy)
в System.ServiceModel.Security.TransportSecurityProtocol.VerifyIncomingMessageCore(Message& message, TimeSpan timeout)
в System.ServiceModel.Security.TransportSecurityProtocol.VerifyIncomingMessage(Message& message, TimeSpan timeout)