[Cryptography] Darpa wants a secure messaging app based on blockchains

[Jerry Leichter]

>> http://motherboard.vice.com/read/darpa-decentralized-blockchain-encryption-messaging-app
>> 
>> https://sbir.defensebusiness.org/(X(1)S(1k4rl43mjo4osffksxsusdf1))/topics?AspxAutoDetectCookieSupport=1#topic27859
> 
>> Buzzwords: decentralized, journaled transactions, cyptographically sound, blockchain, repudiation, deniability, one time.
>> 
>> "Phase 3 will focus on commercialization", but any commercial system will require a back door, thus rendering it worthless for commercialization.
> 
> So I guess it cannot be based on publicly verifiable cryptography then,
> because then the backdoor would be impossible. Guess they can just go
> back to using Skipjack :P
There's nothing in the SBIR proposal that calls for back doors.  That was Henry's cynical comment.

Keep in mind that the FBI is at this point pretty much out there alone in demanding back doors (though they won't admit that that's what they really want).

                                                        -- Jerry