A digest might save network bandwidth in exchange for more CPU usage.
On Thu, Oct 17, 2013 at 5:40 AM, Tony Arcieri <[email protected]> wrote: > On Wed, Oct 16, 2013 at 11:31 AM, Pieter Hintjens <[email protected]> > wrote: > > I tried to explain the use cases in my article. The goal is to send my > > public key to you without leaking the fact. > > That doesn't explain under what circumstance someone going to > authenticate a public key without immediately using it for Curve25519 > D-H if it's valid. For authentication purposes, there's two things > that make sense, IMO: > > 1) The entire public key > 2) A large (e.g. 256-bit) digest of the public key which provides > preimage resistance... but why would you use this over a public key? > > -- > Tony Arcieri > _______________________________________________ > zeromq-dev mailing list > [email protected] > http://lists.zeromq.org/mailman/listinfo/zeromq-dev >
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