Self Signed X509Certificate verification with .net

Question

here is my situation:

I've 2 X509Certificate2 objects.

Object a: Certificate Authority (root-CA)
Object b: Certificate , signed bei a.

a is not an trusted root ca!

is there an easy way to verify, that b is realy signed by a?

the right answer is in thes thread: http://stackoverflow.com/questions/3264747/check-signature-for-x509-certificate — flotto, Apr 07 '14 at 08:30

score 0 · Answer 1 · answered Jun 28 '13 at 14:37

0

I think you need to install your own Certificate validator. In your validator method you can check certificate issuer and return true if it is a.

 private static bool ValidateRemoteCertificate(object sender, X509Certificate certificate, X509Chain chain, SslPolicyErrors policyErrors)
        {
            if ( certificate.Issuer==<a DN goes here>
                return true;
        }

        public static void InstallCertificateValidator()
        {

           ServicePointManager.ServerCertificateValidationCallback += new RemoteCertificateValidationCallback(ValidateRemoteCertificate);


        }

answered Jun 28 '13 at 14:37

user2246051

231
1
7

this, is not the problem. i have to verify the cert signature – flotto Jul 01 '13 at 07:57
1

Have you seen this http://stackoverflow.com/questions/3264747/check-signature-for-x509-certificate – user2246051 Jul 01 '13 at 13:58

Self Signed X509Certificate verification with .net

1 Answers1