C#-RSA encryption

https://msdn.microsoft.com/en-us/library/bb397867%28v=vs.110%29.aspx
http://www.codeproject.com/Tips/834977/Using-RSA-and-AES-for-File-Encryption
http://www.technical-recipes.com/2013/using-rsa-to-encrypt-large-data-files-in-c/
http://www.c-sharpcorner.com/UploadFile/75a48f/rsa-algorithm-with-C-Sharp2/
https://msdn.microsoft.com/de-de/library/5e9ft273%28v=vs.110%29.aspx
https://blogs.msdn.microsoft.com/alejacma/2008/10/23/how-to-generate-key-pairs-encrypt-and-decrypt-data-with-net-c/
http://www.codeproject.com/Tips/834977/Using-RSA-and-AES-for-File-Encryption