Hiya,
I've read the past items on this list, looking for a good non-interactive source of
entropy for the PRNG. Now I've a (possibly very) stupid question. The data I need to
encrypt is your basic bit of user data going from system A to system B. Now given that
the
whole point of encrypting this is to prevent someone from reading the data, is there
any
reason why I can't select a random bit out of each user message, perform some
incantation
on it and use this to seed the PRNG ?? I mean, if someone can predict the contents of
the
data well enough to work out what my seed is, surely they've defeated the purpose of
the
encryption anyway .. true ???
Given that I'm cryptographically ignorant, I don't want to do this if there's some
great gaping flaw.
Thanks,
G.
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