Off the top of my head I'd suggest it's not going to work - a capture file will continue to replay with non-stripped packets each time, which kind of defeats what I think you are trying to do.
The name of the tool has escaped me (stupid non-operational vm system makes it hard to check), but there are tools available to crack SSL if you have the start of the keystream - the part where the user first connected.
By all means though, check it out, I'd be extremely interested if it actually worked.



