Should not be that bad, since all the gore happens at the beginning of the connection, so when the data is actually flowing it's just a standard symmetric encryption which is usually one-to-one - however there is some overhead as the session key is periodically recomputed.
You could do an experiment with s_client and s_server to get some real numbers on your setup.
Vu Pham wrote:
Hi all,
I am looking for average overhead of SSL over plain tcp. Can I have some kind of numbers like for one SSL connection ( from connect to transfer and then disconnect ) for N KB of raw data, how much overhead I have ?
The reason I ask is I am applying OpenSSL to my phone apps, and the phone provider charges the connection per kilobytes.
Thanks,
Vu
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