Actually, I'd probably initialise the password (in the source) with a long hex string add a block of code that did some seriously complex bit-twiddling on it before its first use.

I'd then surround it with a big block comments saying that:

###################################################################
## This block must not be altered or copy&pasted in any way.    ###
## It will no longer work if it is.                             ###
## If this needs to be updated,                                 ###
## a new block must be obtained from the systems security team! ###
###################################################################
[download]

In any organisation, there has to be somebody who knows how things work!