Steve Reid wrote: > > > While spreading the news about the RC5 contest, I was asked the following > > question about the 56bit key and I wonder how to answer: > > What is the complication of this exhaustive search? I suppose it is > > exponential, but to what number? > > With a 56 bit key, there are 2 to the power of 56 possible keys: > 72,057,594,037,927,936 > > A 100MHz Penium can try roughly 81,000 RC5 keys per second, or it can > try 380,000 DES keys per second.
Cool. That's only about 23,000 years for the RC5. -- ...RickM... -- TO UNSUBSCRIBE FROM THIS MAILING LIST: e-mail the word "unsubscribe" to [EMAIL PROTECTED] . Trouble? e-mail to [EMAIL PROTECTED]
