17 Dec
2003
17 Dec
'03
6:17 p.m.
Everyone seems to be arguing about whether brute force decryption of RC-40 costs "tens of thousands" or not. The answer is it costs pennies. Literally. See the "Big Seven" paper on why key lengths of over 80 bits are required to read the details. ftp://ftp.research.att.com/dist/mab/keylength.txt Perry