WCF customizes its own signature validation logic

Key points:

1. Ensure that the signature is set on the client.

Client. ClientCredentials.ClientCertificate.SetCertificate (Storelocation.currentuser, storename.my, X509findtype.findbysubjectname, CertName);

2. Write your own validator, inherit X509certificatevalidator

public class myx509certificatevalidator:x509certificatevalidator{    string allowedissuername;    Public Myx509certificatevalidator (String allowedissuername)    {        if (allowedissuername = = null)        {            throw new ArgumentNullException ("Allowedissuername");        }        This.allowedissuername = Allowedissuername;    }    public override void Validate (X509Certificate2 certificate)    {        //Check This there is a certificate.        if (certificate = = null)        {            throw new ArgumentNullException ("certificate");        }        Check that the certificate issuer matches the configured issuer.        if (Allowedissuername! = certificate. Issuername.name)        {            throw new securitytokenvalidationexception              ("Certificate is not issued by a trusted Issuer ");}}}    

3. On the server side, embed the validator you have written into the ServiceHost

           using (ServiceHost ServiceHost = new ServiceHost (typeof (CalculatorService)))            {                 ServiceHost.Credentials.ClientCertificate.Authentication.CertificateValidationMode =                     X509certificatevalidationmode.custom;                ServiceHost.Credentials.ClientCertificate.Authentication.CustomCertificateValidator =                     New Myx509certificatevalidator ("cn=contoso.com");                Servicehost.open ();                Console.WriteLine ("Service started, press ENTER to stop ...");                Console.ReadLine ();                Servicehost.close ();            }

Finally, attach the official MSDN Note (original source)
https://msdn.microsoft.com/en-us/library/ms733806 (v=vs.110). aspx

WCF customizes its own signature validation logic