Weve started implementing Galois/Counter Mode (GCM) into wolfSSL.  Specifically for use with AES and as a cipher suite for embedded SSL.  One of the benefits of GCM is its efficiency and its performance appears to be pretty good as well.  As an authenticated encryption algorithm it provides both integrity and confidentiality.  We expect to see it more widely adopted in the near future.  If youre interested in testing AES with GCM or have any question or comments please let us know.GCM (Wikipedia): http://en.wikipedia.org/wiki/Galois/Counter_Mode-Team yaSSL