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hello my name is Ruben I'm here with
Christian and
we both work at consensus and we want to
give you an update on you port usually I
start this talks telling about identity
in general and how important it is but I
think for for this crowd I skipped that
part and obviously identity in all the
kind of forms like for people for tools
for everything it's super important
today I want to focus on the challenges
I think the community here is dealing
with mostly obviously key management we
spoke about user experience for the
average show and mobile and I think we
had already in the last three days quite
some interesting projects with meta mask
with mists and others light lines I
think there's a lot of things happening
and I think we have something which is a
little bit different and very
complementarity those things which
already people are working on so it's
pretty exciting
identity and data ownership is a
obviously huge topic and we will touch
on this to certain extent but will not
completely cover this because ten
minutes is a bit short for some other
stuff so again want to go
first to explain a little bit about the
design principles from you party class
and the core things we we believe self
seven identity is the solution we need
to we need to achieve it's really
important that it's used like easy to
use so we have we spend a lot of time on
thinking about usability and
ultimately if you want to do anything in
the in the digital world
reputation and Trust is really important
so we spend a lot of time thinking about
attestations and how we we built a
platform which can establish this trust
so the three main element is
how do we recover keys what's an easy
way to do this without relying on a
company or someone else to do this and
we have some interesting ideas on this
we need a new persistent identifier so I
think that's something at the moment
people to use public keys that's kind of
your identifier and that's what people
use but what happens if you use your key
or you it's kids gets compromised and
then you start from scratch so I think
we have now given to Piper our our key
and let's see what happens if things get
lost so I think it's really important
that we find a way and I think we found
at least a good idea how we can tackle
this problem and
attestations and attributes there's a
key element to this so once you have an
identifier can now claim certain
attributes and go and get data stations
from institutions from I know whether
it's a bank whether your employer your
landlord whatever this and over time you
build and connect it to your identity
more and more elements which you can
then share selectively to relevant
parties and you build up a like really
strong reputation and therefore the
trust you need to interact with digital
services and Christian will I'll tell
you how we solved it
exactly so the way we deal with
key management first is that you know in
order to interact with aetherium you
need to have a system for managing keys
so
normally what this has been is you have
a key maybe encrypted in a file and then
you need to make sure you don't lose
that file or maybe you have a
12 word seed or mnemonic then you need
to write it down but you need to write
it down securely etc so we're taking a
slightly different view so
mobile devices today especially those
with secure enclaves can provide a very
safe environment for a private key so
what we're doing is we have a private
key it's in the secure Enclave and it's
never supposed to leave the device
so in order for this you have a problem
what happens if you lose your device the
idea there is to have a key recovery
system where you can tell your friends
or other delegates that they can go in
and actually have authority to restore
your identity if if you need to and so
in order to do this we use a what we
call a proxy contract as your core
identity construct so the address of the
proxy contract is your identifier
whenever you want to interact with an
app Asian contract what you do is you
send a transaction
from your phone you sign it with your
key but you send it through a controller
contract through the proxy contract and
to the application the application uses
the message dots under construct in
solidity and it sees the proxy country
the address as the as the sender so what
this means is that we can extract the
the access control logic in a controller
contract that is accessed by the device
key but it also has a multi-sig recovery
feature so this allows you to if you
lose your phone you get a new phone you
can regenerate a key but your recovery
friends can can recover you so that's
the background and now we're going to
show a demo if it works
so this is integration with the gnosis
platform that Martin just talked about
here we go
so basically what you see here on the on
the phone it's very simple my phone up
and you download it and it is very like
it's generates automatically the private
key it automatically generates the
smart contracts Kristin just mentioned
and what we're going to show you now is
an interaction like what's the usability
for for you if you if you use this so
let me see whether it works
so what you see is this is just the
profile app you scan the QR code on the
app so there's nothing installed on this
on this
browser you just go to the app to the
gnosis page in this case you see the
identifier it's the same you you have
here you should see your balance it's a
little bit small maybe which is the same
address and you see your your past
transaction so the login process is very
simple we just hand over the identifier
well now we're going to show you signing
a transaction so we go and purchase some
chairs and doing so we just enter the
amount
and whatever we want to do and after we
confirm this it will generate a QR code
again that's not let's at the moment as
MEP said we have some other ideas how we
can make this more user friendly but we
do now we scan
the theorem and
call and you will see now automatic we
recognize it's a buy shares activity and
now to use it and sign it needs to
private key so it asks for the for the
biometrics and what it does now it sends
it to in Fuhrer to relay the message and
we sent back this transaction hash to
the application so it can immediately
react so it's not like waiting for
fifteen seconds you see the hash here as
that hey something has happened but it's
still processing it so because it needs
to mine and for the next block and once
the once the block is mind which hasn't
been watched so that's kind of what we
think is in like much nicer interaction
with with this mark on tech we use
already the four byte directory and ERC
67 so this Laura already happening
so don't you see what I can go back so
thanks to Piper Miriam
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so we have not enough time today so we
just briefly this is how it looks if you
do is on a mobile so it works already
today's you can open it like our test
app in the moment you say connect it
opens up instead of a QR code it just
says it's jumps to the app you say
authorize and it comes back to the
application and you are identified with
with your address it's pretty simple
same works with signing a contract so
it's kind of a neat our social recovery
which Christie mentioned so the
controller and what we have built for
now is just to start and the idea is
here you have a contact list of your
friends and you just pick in this case
three individuals you say this is my
recovery key it will set up basically
like a multi-sig but the user doesn't
even know that he that is involved we
keep it really really simple the flow
how it looks like and I need to jump
down a little bit faster you click
instead of creating a new you port at
entity you say recover you will generate
a new key it would show this this is now
your new one it will use this connecting
to other to your friends they need to
scan this and say oh this is this person
they send a transaction to the
controller to enable and I'll unlock you
and reconnect you back to the identity F
perform that's the position identify
which we I think is really important
I think we need to skip out okay so just
briefly and running out of time so we
have a lot of Martius like how we can
use different keys of different levels
to indicate Hardware wallets to make
this much work I think we have a robust
foundation but there's a lot of things
we want to target come find us later we
can talk about some of the vision
elements a Christian needs to tell you
know how you can use it yeah so this is
the as a developer how do you integrate
with you port so we have open source
libraries they you write your app using
a standard web 3 paradigm as fabian
talked about we have a you port web 3
provider that you can just drop in the
when you do the get accounts it will
trigger the you port connect feature the
scanning a QR code the same transaction
or doing a contract call will will
trigger the transaction signing flow it
will by default it will take care of
generating all the QR codes and stuff
like that but you can also customize it
if you want more specific integration so
thanks you can find our libraries open
source libraries on github we have a
wave white paper on our website you pour
toute me and
if you want to have a taste of the app
you can go to you port open a slash def
beta for the iOS app or Android app is
coming soon you can email us at Android
at you port of me to hear more news
about that great thank you very much
Christian and Reuben
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you
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