15 Jun
2007
15 Jun
'07
6:14 p.m.
On Thu, 2007-06-14 at 21:03 +0530, Siddhesh Poyarekar wrote:
True, and 3DES provides an effective key length of about 108 bits. But you still haven't cited your 128 bit DES example. It's not a jab; I couldn't find it on googling, which is why I asked.
Not 108 bit but 112bit. I already cited the source - Pfleeger. On the 128bit key issue, it'll definitely increase the work but that still doesn't make the algorithm more complex as DES works best with a 64bit key. Any attempt at changing it has always resulted in reducing the effectiveness of the encryption.
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Regards,
Dinesh A. Joshi