[Applause]
I am often forum reacts and what I am
doing is currently works for privacy
solutions to the protein networked so of
digital Jam product also the privacy
preserving approaches so I'm happy to be
here to talk about it let's start off by
briefly defining what data privacy the
blockchain context we can see the whole
production system can decompose maybe
2/3 radio and progeria and the Justin is
my talk I recommend you find the premise
in future itself
kalimera come first also that
confidentiality features after landing
has features competition for the
networking layer means hiding translated
and anonymity for networking really high
degree of analysis whereas the condition
for the rock generation means highly
transferred amount so when you set up
transport or point in the same for
everyone see how much use Center is
available the data and anonymity for the
route generator went into hiding on
transaction graph so again when you send
the transaction of everyone see the
transaction when come home or where to
go so in this mental cramming on
focusing on the privacy features for
dist approach generation in the midpoint
ym standard transaction
pogchamp and when your sanctum same
transaction citizen rupture will be
attached to one of centers private
private to keep a public key and to
verify the signature question to verify
the craftsmanship of the signature but
it always reveals a transaction where
confirm and so inaudible data type of
the data linkage in the module is a
special signatures called real
signatures and the signatures basically
a lot it'll be attested not just one of
center pipe type int but management with
some damn authority and the difficut
effects from the maharaja network and
the kids also safety in the infant
sectionalism so signatures basically
ensures that our it's time to buy one
private key corresponding to one of the
remembers a public key and as a kid
works as a dummy private key so this in
this picture the red one is on europe
center actual territory and as a kid I
washed them
damnit Oprah private key and this is a
white to advocate to give their
anonymity features for the sender others
in in the morning protocol and Paul
gives confidentiality features to the
morning centers tender very commitment
hour instead of the low edge of the
volume and if we attach the arranged
roost
there are sprinting systems and the each
of the provides Authority officer within
themself value is in the back the range
and some fundraisers there are services
of all sorts of animated features to
give the recipe and jealousies if the
teacher also likes a utak so right model
in the world champ and I guess that the
mandatory not commitment is admittedly
to the Magna tree and it was like yo
Jeff saw set in the world champ
so that centered on stands that a child
buried under it to be communities enough
commitment and so it to be highly this
is a actual amount and there's an
important thing is that this Clinton
this Magna tree is regarded so in center
to a payment into the it not update is
also not commitment instead of it will
be an eternal fire data which is a
unique and radical to the specific is a
consuming commitment and that the fire
data will be added to the very fire set
drawn in fire set and which is to
prevent from status pending so that they
just max
prove that all these computational
processes are actually do or without
revealing just hands together such as a
Senna's privacy and actually transform
art so these are major privacy focusing
proteges objects units of Westeros but
how can we achieve there is a future in
the cattle based approach so it means it
can be achieved at confidential features
form so when you send a transaction
how can we achieve America's features
for when you settle transactions so
Delta Y Delta Z Chang is a privacy
preserving culture and supporting data
based approach and we are currently not
on top of Osibisa you know we talk of
ins substrate and we especially provided
some substrate on shamrocks called
ourselves 12 modules and some Cherokee
to follow protecting the same stipulated
R which is a strain and let me jump into
my privacy solutions in this JAL JA let
me talk a little bit about the what is a
substrate is some strenght is best very
approach a framework which is developed
by parity technologies and the substrate
provides a basic block chain component
or such as a database so in the chair
force during transaction
and peer-to-peer networking to
precipitously transitions in general
stream network and the consensus
mechanism to provide the incentive
mechanism entities abrupted network and
attractive transaction here and so on
and the teeth protein component might be
most complex and difficult part when you
edit your own proteges but if you be
reached on the substrate oh you don't
need to implement disease in compressed
complex component so all you need to do
is that you just build some substrate
modules and substrate ranting and this
is the white to configure the sensor
modules into the substrate want em
they're a bunch of substrate modules and
this though each module provides a
specific features such as the timestamp
module provides just a text and we
deserve approaching and the parentage
module provides the amazing the fancy
process the production system and
especially you know and we provided some
Travis it was focusing modules such as a
bankrupted parties module provides the
white is a confidential transpose into
one time and animus policies module
provides management was passed into the
water
and the this is a self chance variables
again we are toppled on service right
and xeljanz
architecture is a permutation of the
laser and also who is a teacher snacks
as as a knowledge proving systems and we
can on top of it we can build privacy
oriented applications of intelligent
protocol such as a confidential and
animals payment applications and privacy
features financial statement
applications of the portage urgent
protocol and what it is this is a paper
published by when experience after in
earlier this year and it is allowed rest
area Church free decentralized and
conformational payment memorizing all
that isn't always a smart contract or
form and the basic idea is that common
fix deep encryption scheme hide or
transfer amount and conferences and also
it takes a tanto based approach for some
reason observation CSM usability and
thus all video quality music
circulations in don't change and the
result is I used is a sigma brent of
called
signal printer which is find out that
they are not building systems but we use
instead it is next now the statement
itself that they just not sell based on
teaser vertical permeability just max
because one of the problem of the
anonymity say it's so expensive so we
want to work small troops and shelter
verifications in Internet services in
our competition and also the distance as
a great community and a lot of project
using as it effects libraries and their
existing that what was a awesome
libraries for they just next but as you
know one of the downside is a necessity
of the Transit Center and the practice
tests and there are some solutions and
some applications turn to the transitive
one thing it's at much much
computational which is to by the Zetas
protocol and some Universal and updated
service so which is a lot of researchers
in Germany century and how it works are
actually in the confidential
transposition read six simple cases so
re standard include the three coins
table so here we are take is a catalyzer
process or one share a we re starting
point and the board has five points
correctly and but obviously to be
readapted
everyone see how much they have now so
if you don't have to have it
we need to encrypt it those a month by
the Livity to carry encryption and this
missions team has a home for body so we
can calculate to be the encrypted way so
very stable and it is very constituent
transaction and this so this is a
materiality the public balances and some
selected fountain
heiresses balances and we can calculate
function with ourself of tipped away so
no one cannot see those actual madam
chair and the auspice artist can see how
on bass is by using her decryption key
which is one of the private to do so
this is a or Robert Scalia or the
confidential transferring the church and
about the problem is that how our
auction knowledge imbalance this anklet
element I mean this so encrypted three
coins it looks actually just sixty forty
virtually so easily to convince that
this 60/40 by the reins actually
encrypted three coins by
corrected correcting encryption key so
your touch is wheels of the conspiracy
because the kiss next basically profile
provides ample if that statement some
statement is actually correct
so in this confident the statements the
transform a tree is within the Buried
arranged so that is not a negative
amount was not overbroad or Center has
an imbalances and it's anchored by the
great change Shanti so if it is
statement is actually correct and the
snacks not videos
and not only research at Immanuel
sensitive data such as a travesty and if
the statement object corrected by fire
function on Jamie test children and the
camera dead its own collagen and the
case of them and I'm a trans person just
that over processes similarities are
confidential to hospital or as I
explained earlier but the difference is
that to meet some dummy addresses and
Simon and Peter a month will be added
into the transactions so this is a
similar point to the monitors approach
because it will be propagated because of
the damien data so that's point is that
other people cannot tell the difference
between the actual data such as a
recipient and Dominator and as father
launched operation after part finger
which is verifying fraction operating
the anklet appearances will be
calculated in their own chain and these
changes will be uniformly and this
encrypted the accoutrement for Damien
disease is actually equal to Jeremiah's
so that we address disposal in
authorities will not change the father
Archer balances this is change just to
save our taste
and this is a bench mass I was a surgeon
as this is a console right side of the
teachers is a constant against an empty
sides because of the accumulated up
approach or which is I explained earlier
whereas the console rentals ehm groves
opinion against anonymity size because
we need to today's show yep it's a
limited size in this foreseeability size
or in this title is our any size is a
number of the entity sets so in this so
in this features 40
in 47 in cell 14
yes it's quite smooth yes but I want to
come I want to compare that yesterday
just concentrate and object constraints
so it's a small sum without cause rent
of the general in area yesterday sites
so that they'll just consoling context
over land 26 and 27
so in the just constraint sanity side
the as a reference I decided upon our is
a German territory and we can achieve of
searching our children the UH narrative
feature levels of the mana with half of
the Z just constraint southeast 15,000
constraint so by the way the constraint
is a computational complexity in the
geological thing
and the next thing I would like to talk
about is our ability for some privacy
coins and the name is a selective
disclosure because for the other the
water usage among some Enterprise usage
possibility to so important aspect and
because they need to comply with some
regulations and to be some protecting
from the like that money laundering so
it means a profit entity should be able
to or it to certain users maestro in the
financials 10 videos cases and the
reenter tips as such or it ability
features or we prepare some key
component for getting accountability and
the Apache which appears but importance
key is this difficulty because all the
transfer of handle and anklet devices
will be encrypted and distinguish aunty
and if user pass this deficient I
believe she'll be through some monitors
orders can decrypt it by using the stick
love shopping but the order cannot spend
their users coin because they don't have
the spending t the decryption t cannot
be announced a new key cannot be derived
from this equation t
I mean so as harmony what is a good
point I was a cutter based approach the
factorial thing with a syringe battery
because or you can ferment the YouTube
so based approach if it is a smart
contract but it's too expensive and all
you need to all you tics or set and or
Spencer attachments such as a nerd via
data need to be stirred into the smart
contract and also or we can achieve is a
confidential cap to talk means that not
the best approach for example or if so
if you want to prove that a scout has a
security tokens over 4% of the total
supply in a confidential manner but in
the YouTube service approach or you need
to activate the correct order of the
YouTube so set on channel so it's too
expensive and it's easy notice was it
went easy to get the automated features
in a cut best approach because in the
YouTube saw best approach alter need to
try try to distributive over several
days to including their our history of
the transaction and so it's it's too
expensive and but the counter based
approach all it'll just all fetches a
specific group or intuitive oxygen forms
abruption Network and difficulty it and
we get the single register parent
and so you know we are all open salsa
argumentation Hotel champ and implement
or implementation interpreting last and
but it's at the development for our
production already or you can check out
Patriots come - okay so this is a demo
oh so we have the several hundred one
thousand points now and best hands has a
logic is a search and not randomly
lotteries and the rats have is a
whatever desktop client on Lister
granted I'm gonna send a 100 points to
Aris and submit is an integrated to the
generally and cementation skin and the
by five-minute in with internal Chandana
and transferred amount will be
subtracted from my balances and the
change that the forward to others into
the best authorities
I'll check the origin now let's get 100
coins thanks so much
[Applause]