Public key extraction from a certificate in C#

Question

How to get private key from a x509 v.3 certificate and store it in a RSACryptoServiceProvider class?

Answer 1

RSACryptoServiceProvider rsaCsp = (RSACryptoServiceProvider)x509certificateobject.PrivateKey;

Suppose if you use public key then just change the .PrivateKey to .PublicKey.

Answer 2

RSACryptoServiceProvider rsaCsp = (RSACryptoServiceProvider)x509certificateobject.PrivateKey;