[Applause]
until oh and I were preparing
technologies and today I'll talk about
great designer it's super quick at the
beginning of the presentation because
these are things you probably know and
are finished all right here so this
whole to the basics talk about the
basics are gonna come from a message to
an executed transaction on a rope chain
so you have a message very transaction
you sign it with your private key and
then you send it somehow to the growth
chain this private key is the point
right if you lose it of someone gets
access to it that's game over
so what do people store their private
Kim most of the time or sometimes I
suspect in the days it was securely
encrypted on adjacent for instance we
are a password you could use it on my
order for instance but the thing is you
have to give kind of quality because
they prove this is Jason and then you
give sorry your password so a problem is
if my echo what it get higher because
it's a website it's actually a large
security threat well then game or what
you could do is and that's much better
because metal mask is not exactly a
software on your secure and it's not
exactly a website use minimis and Indian
that's kind of the same right you can
give you private key to minimize and
minimis or some reason gets hot QT she
gets night because the extension can be
you know they are just updated
automatically or we were talking about
the dependency of meta muskies is
happening basically you came over again
so what you can do again is used for
instance my crypto are pretty better
which is a desktop application but in
the end you can also give you priority
to those
those softwares and even if this is on
desktop and it's maybe a bit harder to
get half on your desktop if the whole
let's say Windows or Linux or Mac gets
hacked and you're getting over again so
what people do to have like kind of the
highest security today a one that is
security why being able to use it when
they keep this high security is just you
know take your name on it and put it
somewhere it's super super safe it's
just you cannot use it more at so it
doesn't make sense so people use for
instance a treasurer and they use it
together with an online application so
in the middle of the expander and you
create a transaction online with this
online software you sending to the what
else you sign it on to other work and
then send it to the regime that verifies
the signature so this guy gets hacked it
will eventually send a transaction but
you can check it right on the treasure
and or words and I swear stinks just all
which could eventually happen is that
the transaction that I sent perfectly
okay you're gonna just you know silence
and then they somehow try to trick or
change the message as you probably know
this stuff work right because you cannot
change the message that hasn't been
signed without the go changin rejected
so the mochi is this piece of hardware
will have the key will sign and this is
the key part break you want to get these
guys super super safe so we thought
wouldn't it be cool if there was enough
that we turn an old smartphone into a
harbor worth it because everybody on
many people have an old smartphone right
that is laying around they're not using
it and why the whole point is you wanna
have you know world war it's aria
it's off right and you want a way to
sign you to sign your transaction okay
we should use a opponents I'm quite
close to that so that's why you created
already signer so this is how it looks
like and what does it do you can create
accounts can recover accounts you can
sign transaction you can sign messages
all right so this is supposed to be
offering all the time so it's mainly not
the way the Samsung is going to your
form read but it's the same you should
not use you're not one that use every
day you should actually said that you
should encrypt it you should turn
airplane mode and never turn it on again
and never to a computer so I always work
a little demo on the right our header on
the left are very designer with an
upright board so what I do is I create
an account for instance on ethereum and
so yeah I can choose from yeah if it
comes I can choose from different I have
to come that's pretty fun that's how I
look well here there's one that looks
like a little pasta that's pretty corn
when I pick this one and I'm going to
give it a name it cetera on the right
again this is on on the right there's a
sink water that is offline and ready to
send some transactions so on the Left I
gave you know I paid account so I'm
demonic I put a pin of course because
you want to you know secure it somehow
someone gets all of your phone that is
all right and on the right what I'm
going to do is I'm going to import this
account that has been created okay so I
can just connect
the left i'ma show this 1202 my pc
basically to the right hand of the pc
just give the name right no need to
assign to to put any any password
whatever because anyway it's it's only
four days of life now stand already
stone is some money to this account and
I'm just going to show you how we gonna
send money from the account so now from
this account that is offline I will send
money to another account so I'm going to
show you how to sign a transaction so
from there and that is all crying just
gonna say stand in this on the right is
the transaction that needs to be signed
right it's right move inside so on the
left on the off Brian we will expand
this transaction from my PC then I'm
going to review it on a nice screen that
is a smartphone screen right so it
pretty nice I can see everything I can
just sign it by typing my my pin and
then I'm going to show the sign
transactions on the net it's the same
transaction that have addressed economy
when super quick but just understand
with my with my webcam and that's right
so behind the scene which we didn't
create me that we have a graphic
libraries which in universe everything's
makes work offline so you will not never
get online with your phone the priority
number is close to the
just to be super clear millions of euros
just confuse this what's next want to
use biometric encryption dynamic network
we can talk about it you can get on the
App Store on the average or we have an
educated 90k on nuclear energy
[Applause]
you