EncryptedXml DecryptDocument method throws “Bad Data” exception

Question

I wrote a code block for Encrypt/Decrypt Streams. The code is working in my local machine. But when I publish my code on web The Decryption functions throws \"Bad Data\" ex

Answer 1

Do not reinvent cryptography protocols. You will get it wrong. Case in point, mishandling the RSA key stored in the CSPs and expect them to magically appear on any machine.

To encrypt data in transfer, use SSL/TLS. .Net offers it out-of-the-box with SslStream. For WCF see How to: Configure an IIS-hosted WCF service with SSL.