Re: [ILUG-BOM] Why DRM won't ever work

On Tue, 2007-06-12 at 04:54 +0530, Parijat Garg wrote:

...

It has been mathematically proved that by doubling the key length of the DES algo, doesnt actually "double" the security it provides. Rather it just simply remains the same.

It would certainly make a brute-force attack much harder. The "thinking machine" does brute-force attacks remember :)

Get your facts straight before you reply. a message encrypted with a 128 bit key DES is no more secure than a 64 bit key DES. Actually the length of the key is only 56 bit in the latter case.

Double, tripling or quadrupling the key length wont increase the amount of work that a cracker will have to do!