On 23 Dec 2003 20:59:24 -0800, (George William
Herbert) wrote:

phil hunt wrote:
(It's generally not a good idea to use canned phrases like this)

Only in keyed algorithmic encryption; random one time pads make it
harmless, as I understand it.

You understand correctly, even if the enemy knows what the canned
phrase is, they still gain no information that helps them decode any
future messages. Keeping all the messages the same length, as you've
pointed out, also prevents any traffic analysis.

--
"The most merciful thing in the world, I think, is the inability
of the human mind to correlate all its contents." - H.P. Lovecraft