[Top][All Lists]

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [GNUnet-developers] key exchanges [updated, resend]

From: Dominic Tarr
Subject: Re: [GNUnet-developers] key exchanges [updated, resend]
Date: Thu, 27 Aug 2015 13:29:48 +1200

hey sorry, just recovering after travelling back to NZ. will dig
through this all and reply properly!

On Thu, Aug 27, 2015 at 12:08 PM, Jeff Burdges <address@hidden> wrote:
> On Thu, 2015-08-27 at 00:18 +0200, Jeff Burdges wrote:
>> Can we protect Bob without using a signature?  I think yes :
>> Alice can prove she possesses her public key not by signing but by
>> encrypting :
>>    A? ->  B? : a_p
>>    A? <-  B? : b_p
>>    A  ->  B  : E(hash(ab++aB), A_p), E(hash(ab++aB++Ab), ...)
> To clarify, Bob's key B was a wildcard in some protocols, but the
> ephemeral key b is not, at least not anymore than other ephemeral
> information.  Alice is encrypting to it in TripleDH, potentially
> protecting against the wildcard attack, but only if you get the timing
> right.
> Jeff

reply via email to

[Prev in Thread] Current Thread [Next in Thread]