For session encryption, the following symmetric algorithms are supported:
 3DES (168-bit key) 
 AES (128-, 192-, or 256-bit key)     
 Arcfour (128-bit key) 
 Blowfish (128-bit key) 
 CryptiCore (Rabbit) (128-bit key)
 SEED (128-bit key) 
 Twofish (128-, 192-, or 256-bit key)