How to encode and decode using Mono.Security.X509

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C#

C#4.0

Hi,
I am using Xamarin IDE to develop an Android app using c#.

I am using Mono.Security.X509 namespace
I want to encode and decode data using Mono.Security.X509.
Any Help plz!

[edit from OP]
how to encode a string using Mono.Security.X509

Code:

byte[] certBytes = new byte[5] { 1,2,3,4,5 };			
MonoX509.X509Certificate rootCert = new MonoX509.X509Certificate(certBytes);
MonoX509.X509Store store = MonoX509.X509StoreManager.CurrentUser.TrustedRoot;
store.Import(rootCert);

but this throwns an exception

Input Data cannot be coded as a valid certificate