how to add SOAP Security header

I solved it by using WCF without any credentials declared. I did it by building my custom header I got help from this link

public class SoapSecurityHeader : MessageHeader
    {
        private readonly string _password, _username, _nonce;
        private readonly DateTime _createdDate;

        public SoapSecurityHeader(string id, string username, string password, string nonce)
        {
            _password = password;
            _username = username;
            _nonce = nonce;
            _createdDate = DateTime.Now;
            this.Id = id;
        }

        public string Id { get; set; }

        public override string Name
        {
            get { return "Security"; }
        }

        public override string Namespace
        {
            get { return "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"; }
        }

        protected override void OnWriteStartHeader(XmlDictionaryWriter writer, MessageVersion messageVersion)
        {
            writer.WriteStartElement("wsse", Name, Namespace);
            writer.WriteXmlnsAttribute("wsse", Namespace);
        }

        protected override void OnWriteHeaderContents(XmlDictionaryWriter writer, MessageVersion messageVersion)
        {
            writer.WriteStartElement("wsse", "UsernameToken", Namespace);
            writer.WriteAttributeString("Id", "UsernameToken-10");
            writer.WriteAttributeString("wsu", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");

            writer.WriteStartElement("wsse", "Username", Namespace);
            writer.WriteValue(_username);
            writer.WriteEndElement();

            writer.WriteStartElement("wsse", "Password", Namespace);
            writer.WriteAttributeString("Type", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText");
            writer.WriteValue(_password);
            writer.WriteEndElement();

            writer.WriteStartElement("wsse", "Nonce", Namespace);
            writer.WriteAttributeString("EncodingType", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary");
            writer.WriteValue(_nonce);
            writer.WriteEndElement();

            writer.WriteStartElement("wsse", "Created", Namespace);
            writer.WriteValue(_createdDate.ToString("YYYY-MM-DDThh:mm:ss"));
            writer.WriteEndElement();

            writer.WriteEndElement();
        }
    }

and to how to use the header I got it from this link.

I have had the same issue as the First Attempt of the question and I needed to have a output same as the question. The answer is perfectly fine but Just to improve on the above answer or i should say combine the answer with the link i did the the following.

 public class Security : MessageHeader
{
    private readonly string _password, _username, _nonce;
    private readonly DateTime _createdDate;

    public Security(string id, string username, string password, string nonce)
    {
        _password = password;
        _username = username;
        _nonce = nonce;
        _createdDate = DateTime.Now;
        this.Id = id;
    }

    public string Id { get; set; }

    public override string Name => "Security";

    public override string Namespace => "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd";

    protected override void OnWriteStartHeader(XmlDictionaryWriter writer, MessageVersion messageVersion)
    {
        writer.WriteStartElement("wsse", Name, Namespace);
        writer.WriteXmlnsAttribute("wsse", Namespace);
    }

    protected override void OnWriteHeaderContents(XmlDictionaryWriter writer, MessageVersion messageVersion)
    {
        writer.WriteStartElement("wsse", "UsernameToken", Namespace);
        writer.WriteAttributeString("Id", "UsernameToken-10");
        writer.WriteAttributeString("wsu", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");

        writer.WriteStartElement("wsse", "Username", Namespace);
        writer.WriteValue(_username);
        writer.WriteEndElement();

        writer.WriteStartElement("wsse", "Password", Namespace);
        writer.WriteAttributeString("Type", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordText");
        writer.WriteValue(_password);
        writer.WriteEndElement();

        writer.WriteStartElement("wsse", "Nonce", Namespace);
        writer.WriteAttributeString("EncodingType", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-soap-message-security-1.0#Base64Binary");
        writer.WriteValue(_nonce);
        writer.WriteEndElement();

        writer.WriteStartElement("wsse", "Created", Namespace);
        writer.WriteValue(_createdDate.ToString("YYYY-MM-DDThh:mm:ss"));
        writer.WriteEndElement();

        writer.WriteEndElement();
    }
}
/// <summary>
/// Represents a message inspector object that can be added to the <c>MessageInspectors</c> collection to view or modify messages.
/// </summary>
public class ClientMessageInspector : IClientMessageInspector
{
    /// <summary>
    /// Enables inspection or modification of a message before a request message is sent to a service.
    /// </summary>
    /// <param name="request">The message to be sent to the service.</param>
    /// <param name="channel">The WCF client object channel.</param>
    /// <returns>
    /// The object that is returned as the <paramref name="correlationState " /> argument of
    /// the <see cref="M:System.ServiceModel.Dispatcher.IClientMessageInspector.AfterReceiveReply(System.ServiceModel.Channels.Message@,System.Object)" /> method.
    /// This is null if no correlation state is used.The best practice is to make this a <see cref="T:System.Guid" /> to ensure that no two
    /// <paramref name="correlationState" /> objects are the same.
    /// </returns>
    public object BeforeSendRequest(ref Message request, IClientChannel channel)
    {
///enter your username and password here.
        Security header = new Security("xx", "xx", "xx!","xx");

        request.Headers.Add(header);
        return header.Name;
    }

    /// <summary>
    /// Enables inspection or modification of a message after a reply message is received but prior to passing it back to the client application.
    /// </summary>
    /// <param name="reply">The message to be transformed into types and handed back to the client application.</param>
    /// <param name="correlationState">Correlation state data.</param>
    public void AfterReceiveReply(ref System.ServiceModel.Channels.Message reply, object correlationState)
    {

    }
}

/// <summary>
/// Represents a run-time behavior extension for a client endpoint.
/// </summary>
public class CustomEndpointBehavior : IEndpointBehavior
{
    /// <summary>
    /// Implements a modification or extension of the client across an endpoint.
    /// </summary>
    /// <param name="endpoint">The endpoint that is to be customized.</param>
    /// <param name="clientRuntime">The client runtime to be customized.</param>
    public void ApplyClientBehavior(ServiceEndpoint endpoint, ClientRuntime clientRuntime)
    {
        clientRuntime.ClientMessageInspectors.Add(new ClientMessageInspector());
    }

    /// <summary>
    /// Implement to pass data at runtime to bindings to support custom behavior.
    /// </summary>
    /// <param name="endpoint">The endpoint to modify.</param>
    /// <param name="bindingParameters">The objects that binding elements require to support the behavior.</param>
    public void AddBindingParameters(ServiceEndpoint endpoint, BindingParameterCollection bindingParameters)
    {
        // Nothing special here
    }

    /// <summary>
    /// Implements a modification or extension of the service across an endpoint.
    /// </summary>
    /// <param name="endpoint">The endpoint that exposes the contract.</param>
    /// <param name="endpointDispatcher">The endpoint dispatcher to be modified or extended.</param>
    public void ApplyDispatchBehavior(ServiceEndpoint endpoint, EndpointDispatcher endpointDispatcher)
    {
        // Nothing special here
    }

    /// <summary>
    /// Implement to confirm that the endpoint meets some intended criteria.
    /// </summary>
    /// <param name="endpoint">The endpoint to validate.</param>
    public void Validate(ServiceEndpoint endpoint)
    {
        // Nothing special here
    }
}

Excelent post. All of you save my life!! I had to make some changes to get the following headers:

<wsse:Security xmlns:wsse="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd" xml:mustUnderstand="1">
    <wsse:UsernameToken wsu:Id="UsernameToken-15" xmlns:wsu="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd">
        <wsse:Username>EFO140714JPA</wsse:Username>
        <wsse:Password Type="http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest">SgBJAHMANwBBACYANQBOAG8ANwAzACEANgBrAGEAJgBIAGwAJABMAA==</wsse:Password>
        <wsse:Nonce>SgBJAHMANwBBACYANQBOAG8ANwAzACEANgBrAGEAJgBIAGwAJABMAA==</wsse:Nonce>
        <wsu:Created>2016-08-04T11:24:10.0Z</wsu:Created>
    </wsse:UsernameToken>
</wsse:Security>

Tha changes I made are the following:

        public class SoapSecurityHeader : MessageHeader
        {
            private readonly string _password, _username, _nonce, _createdDate;

            public SoapSecurityHeader(string id, string username, string password, string nonce, string created)
            {
                _password = password;
                _username = username;
                _nonce = nonce;
                _createdDate = created;
                this.Id = id;
            }

            public string Id { get; set; }

            public override string Name
            {
                get { return "Security"; }
            }

            public override string Namespace
            {
                get { return "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd"; }
            }

            protected override void OnWriteStartHeader(XmlDictionaryWriter writer, MessageVersion messageVersion)
            {
                writer.WriteStartElement("wsse", Name, Namespace);
                writer.WriteXmlnsAttribute("wsse", Namespace);
 ------->       writer.WriteXmlAttribute("mustUnderstand", "1");
            }


            protected override void OnWriteHeaderContents(XmlDictionaryWriter writer, MessageVersion messageVersion)
            {
                writer.WriteStartElement("wsse", "UsernameToken", Namespace);
                writer.WriteAttributeString("wsu:Id", "UsernameToken-15");
                writer.WriteAttributeString("xmlns:wsu", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-utility-1.0.xsd");

                writer.WriteStartElement("wsse", "Username", Namespace);
                writer.WriteValue(_username);
                writer.WriteEndElement();

                writer.WriteStartElement("wsse", "Password", Namespace);
  ----->        writer.WriteAttributeString("Type", "http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-username-token-profile-1.0#PasswordDigest");
                writer.WriteValue(_password);
                writer.WriteEndElement();

                writer.WriteStartElement("wsse", "Nonce", Namespace);
                writer.WriteValue(_nonce);
                writer.WriteEndElement();

  ------>       writer.WriteStartElement("wsu:Created");
                writer.WriteValue(_createdDate);
                writer.WriteEndElement();

                writer.WriteEndElement();
            }
        }