[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: carrick, Blowfish & the NSA



In article <Pine.LNX.3.92.960414121820.358A-100000@gak> "Mark M." <[email protected]> writes:

> I haven't heard of any efficient cryptanalysis against Blowfish.  I
> know there are weak keys, but they are difficult to exploit.  16
> round Blowfish can be broken using differential cryptanalysis with
> 2^128+1 chosen plaintexts.

Doesn't this assume known S-boxes, though?  If so, since the S-boxes
are key dependent, is this anything to worry about?