[noise] Noise @ Highload++ in Moscow
justin at specialbusservice.com
Tue Nov 14 04:53:19 PST 2017
On 14 Nov 2017 12:02, "David Wong" <davidwong.crypto at gmail.com> wrote:
>> One thing that we will need to be able to use NoiseSocket is static key
>> signatures. Now we transmit them as a simple JSON object (see
>> https://github.com/go-noisesocket/noisesocket/tree/master/virgil ) just
>> make it work, but a more generalized spec is something we'll be working
>> in a near future.
> Cool, David Wong was interested in that too.
For my Noise-plug-and-play implementation this is what I'm currently
doing. I'm trying to find the simplest way to tackle authentication.
I'd be happy to discuss about these:
* I have convenience functions that you can use to generate a "root"
(ed25519) key which can sign "noise" public keys (the 32-byte pubkey
of X25519 for example)
I am interested in a simple signing method too. Was wondering about using a
one way protocol message as a signature perhaps. But anything standard and
simple would be great. I really don't want any Json or anything.
- you can save/load a "root" keypair on disk as two hexadecimal
files with 0400 permissions for the private key and 0644 for the
- I'm thinking about changing hex to b64 (shorter)
- I'm thinking of requiring a passphrase to save/load the private key
* The same convenience functions exist for generating and loading
"noise" (X25519) keypairs.
* I have convenience functions to sign (resp. verify) a static public
key via a "root" private key (resp. public key)
* If a peer needs to authenticate itself during a handshake, it will
send the signature as the encrypted payload of its last message
pattern (the one that sends the static key).
* I do not use any format (like JSON) anywhere. I'm just assuming that
the concatenation of all payloads sent during the handshake is the
signature in bytes.
* If users want to have something more complicated (a chain of
signatures or even X.509 certificates) then they can create their own
"create_proof" and "verify_proof" functions and pass them to the
configuration of both peers and it should work (I haven't tested that
I can see how formatting might be useful, but I'm currently not using
the handshake's payloads for anything else than sending a proof so it
is not needed in my case.
Noise mailing list
Noise at moderncrypto.org
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the Noise