Re: A bold ssl idea ?

I understand that setting up RC4 keys is slower that testing for the correct key (I may have misuderstood this bit).

For pure RC4, Yes. However, SSL is not pure RC4.

Is it considered practical to modify the brutessl code to have multiple message data, and test each against a key from allocated key space ?

You are the third person I've heard think of this. [ The first did quite a lot of calculations before spotting the problem ! ]

If so, this may mean that perhaps 3 message can be tested against a single in the time two single keys could be tested against one message.

Well, the original suggestion I heard was to try 64K at a time :-))