Re: Diffie Hellman Question

"Pink" <pink@xxxxxxxxx> writes:
It's not just 2 parties. There is only one Bob in my example, but a large
number of Alices he sends instructions to.

The same reasoning applies. Public key is good for solving the "N**2
problem" when there are many Alices -and- many Bobs. If there's just
one Bob, then you can still use shared secrets. Will each Alice get
their own instructions? If yes, use a key derivation function like
PBKDF2 to generate a key for each Alice from a single master key held by
Bob.

Can you describe the actual application? That often can help identify
any additional requiremens.
.