Validating x509 certificates vb net

This Excel 2003 spreadsheet (65 k B) contains VBA macros that show how to use to make and verify RSA signatures in a spreadsheet (it should still work in the latest Excel).A sample certificate and encrypted private key is included (the password for the sample key is, of course, password).Important At this point you have to make sure that the certificate is issued by someone you trust (since anyone can create their own self-signed certificates). Certificate); var chain = new X509Chain(true); chain. But i think the solution for me would be to use the one(private)-to-many client certificates, and generate each of the client certificates with meta data to identify the workstation(and the meta data will need to be encrypted for extra security).

validating x509 certificates vb net-30validating x509 certificates vb net-61

We have the X.509 certificate for an end user 'Enid'.

Can we trust that Enid's certificate really is the one issued to her?

In this example, Enid's certificate is issued by an "intermediate" authority Ian, whose certificate is in turn issued by the ultimate certification authority (CA), Carl.

Carl's certificate is a self-signed root certificate.

I have an application and I need to authenticate users using X509 certificates. Count What's the point of the certificate if the client can export it and install it wherever he wants?

That is, the user must install a certificate issued by me so that he can browse my website and I can identify which user is, by this certificate. Ordinal Ignore Case); // if the certificate is self-signed, verify itself. Username/password ensures me about the authenticity of the user, but i need to ensure the authenticity of the machine as well.

Clients and server are mutual authenticated using SSL over TCP and certificates (I'm using the SSLStream class C \CLI The problem is that i need three certificates (one for every client) because i'm authenticating the hosts.

Now i want to authenticate the windows service and not the host so i can distribute the same certificate for every host. --- EDIT 1 ---- To give you an example of what i want to do.

An alternative could be a certificate on a smartcard, protected by a PIN. NET applications you need to do the following: Step 1: In IIS Manager, open your application or web site, choose SSL Settings and choose both Require SSL and Require Client certificate. Build(x509); var valid Thumbprints = new Hash Set( System. An alternative would be to store the certificate in a smartcard.

Now when the user opens your web site, the browser will prompt him to select a client certificate that will be used in the communication. I agree, I want to authenticate the workstation too.

(str Cert Name, str Thumb Print, Len(str Thumb Print), PKI_HASH_SHA1) Debug.

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