security - Does .NET support of AES OFB

Question

Does .NET has a class that supports AES OFB encryption?

I've tried to use AesCryptoServiceProvider but when I set the Mode to CipherMode.OFB I got an exception: Invalid algorithm specified

AesManaged doesn't allow feedback modes (based on the MSDN documentation)

Answer 1

.Net 4.0 should

here is the reference

http://msdn.microsoft.com/en-us/library/0ss79b2x.aspx

Here are the cipher modes available

http://msdn.microsoft.com/en-us/library/system.security.cryptography.ciphermode.aspx