I have a followup question. When encrypting RTP, Office Communicator generates SDP with a crypto key, something like this:
This 43 character base64 encoding represents 43*6=258 bits. The trailing 2 bits are always 0, so I'm guessing that this is a 256 bit key.
My question is, what crypto algorithm is used RFC1890 suggests that when no algorithm is specified, as in this case, that DES-CBC is used. However, DES-CBC
does not use a 256 bit key. So, is the algorithm AES Or am I way off base
Thanks in advance,