I have to use RSA, but there is a lack of documentation, I tried to find an example but no way

i tried by myself to explore the library and i wrote this code:
Code:
byte[] msg = System.Text.Encoding.ASCII.GetBytes("text to encrypt");
OpenSSL.Crypto.Envelope env = new OpenSSL.Crypto.Envelope();
OpenSSL.Crypto.RSA rsa = new OpenSSL.Crypto.RSA();
Console.Write("{0}",env.PublicKeyAsPEM);
Console.Write("{0}", env.PrivateKeyAsPEM);
Have any one used RSA before with this library?
