VDFs Workshop: Discussion | CrossLink Taipei 2019

to our next session we will have a video panel so they need lots of people many the first I talked about here so maybe not a question so that just rather have a question and what a pleasure hello okay based on the previous slide from the doctor oh right I mentioned the rational algorithm and what's the difference between the Ring algorithm on the current most puzzle Z cash all the other thirty cryptocurrency everything so what's different which is that [Music] because gives because the founding one signature could generate even I am any question [Music] this is repentance so in my research it's also do an MBA it's just after separately it was your ear up it go Mima Joseph aha the control dvd-r copies okay so there are these handsome it's salty bad stuff each H 1 Sigma ha ha ha come flowing your innocence or should you treat jingoistic we should go read that leads okay the video this year here is each house each a dose because [Music] I mean okay see one sort of like a switch like attainment switch that when you do to something then some secret guess it's not really immediately possible time puzzles because woods like who would at that point and coded so I mean that's one of the sort of very interesting question blockchains then how do you help me solve that how do you keep a secret that could be used in certain situations without anyone actually having it I mean the only solution I have to think of there are multi-party computations but I don't think tandem process correctly to do that and I saw there is sir PDF mr. Staub Richard Sipe called an uncle but from projects like mr. foundation for lasting tree on many projects include elaborate as the process progress of the hardware of PDF yes right now so we've just finished the first PTA competition so basically before we we will start developing the a success out there like a series of steps to make sure that we actually have the best possible algorithms and so the first step for that was the first PGA competition that just finished like a couple of weeks ago so there it was a prize of $100,000 for the fastest algorithm to compute the RC media which is one of the possible limitations and about 75% or so the baseline had 15 nanoseconds wearing time and the new oneness on 28 seconds and then the second part of the competition is just running and so basically I think they're over over the course of the next year there will be further competitions like there will also be a racing competition and then yeah after we see the fermentation in actually six I want to ask what are the possible applications of experimental earth cruise that's the Spanish okay I mean so it depends but you can for example think of think of the way right now governments have these deadlines and they will release documents right so then yeah for the secret documents that we usually have like a 30 year old in the UK countries that those documents have to be witnessed so for example you could build that into more like actual systems like imagine I mean I guess that's like government applications probably not ideal because of a such long time frames and it doesn't make sense that imagine now you had an exchange that did an audit and publish that that they have or the funds that they claim they have they could actually build in a feature that right now maybe they don't want to reveal where those funds actually are but maybe they can build in the feature that after one year gets reveal because then it doesn't matter anymore and then anyone can look bad back and solonius this actually looks like accounts that then exchange just one one idea yes I mean I guess maybe I don't know but I mean it's similar to having deniability in in signatures like when you can send someone digitally science documents but but but they cannot use those signatures to prove to anyone else that you send them and similarly you could have something where you said something but after and a lot of time you can deny that it's like you have a sentence I know that so this is our hottie decision okay this is mannequin so it's not the oil good so it is just in the slightest is anybody pay so I get it yesterday we took a powder the neck function is this fire equity so efficient operation to compute the proof is charity attention stairs so if we buy the efficient operation to resolve this so I mean so so the assumption basically like is as a question whether there might be other algorithms out there that can compute it faster and I mean this is like this is like an interesting question photography like all those cryptographic primitives that we're using pretty much all as symmetric cryptography is based on assumption that we cannot prove we just assumed that that numbers are artifact and so similarly here and basically the wind the VDS that were constructing now most of them rely on square and some group like one of them is square in the other group and there's actually a new topographic assumption that there's no way to like avoid the repeated squaring that you cannot do it in any faster way but there's not absolutely certain way to know what the only yeah I mean we can we can flameless have no puzzles have been out there for like more than 20 years now and nobody has found another way but we could we can never be absolutely sure basically is a photographic research you put many people on there to think about that and hopefully if there's another way then she said I got each other they were just jealous I think we already what this is just as much if they were hit as there are in yet it's a hostage so it's from a common story that just gender you know your culture she always thought these various star way to be able 2017 is me hope what so you saw how Vegas mm something has I mean it's hot they have machines actually I so how did you like it tell me that oh so y'all know okay she's a puncher and almost even acknowledge me individually so don't send any ethnicity were to name so you got Osama key thought this check the clothes are too tight you talking about HIV services that border piece it's a cute - this is it this was just Isaac though maybe I'll just ask you guys for going engine to talk about my body just yeah and on how to do stop it with you sure so like yeah I mean I came in to make it okay please leave my house Tea Party is actually harder it is which is what we do yeah you take what you give research on it which got that okay I'm 30 studies currently in for my masters and I kept a check for every 300 reviews its circular academic researchers and sometimes my advisor Camilla in light there it is this high some models and some some groups are chemists with special features but in the beginning there jack they're just there and you don't know how to use them is yeah and maybe 10 or 20 years ago and you will accidentally find out that oh my mother or my both the things I want to do and my question is how others reading of you maybe 10 like nicely surprised it reduces tons of publications and how how how the hell do you got even picked out the host application fact when you are showering or when you're walking or is it a time or you can I thought is like a more visual reading process maybe we will do for four years of college because it's a student you can do better like that I can I have it I mean it should be like headfirst that those applications when thought up at me I was collecting those the last couple of weeks like talking to other people so like they like in most cases I mentioned which product they come from in some cases they the project's didn't want me to name them so like I didn't put their name on I think like VDS where got a unique as a cryptographic primitive in that in the same month when they were first proposed as a primitive which was June 2018 last year they also the first efficient implementation was proposed and projects were started to use them immediate because they fill was this exact yeah this exact thing that many projects were missing like several other projects I've talked about they may actually look across primitive already for years past so it's a very big thing that happens very well I talk to Benjamin peasant obstacles like basically a bent on like the most efficient we did a proving scheme at the moment and he was like he was extremely surprised like how what what happens just favorably processes it has basically very very happy before yeah so I think this is quite quite unique I am NOT a photographic researcher so I can tell you the other side of it but I can tell you that from my point of view as like research in space it's like eyes when I search for certain things I support literature see thank you I can't find anything that fits like well all those Italy but in this case it was the very key process I think it is very interesting in virtual space confusion a geography when the terminal process the area may be Canadian services ago and no one this theory is pretty useful until departure technology bring us a space you can start to image a patent application to appear on the table to talk over so at this moment people start to think about oh yeah it will do something we can have delay on sharing just like I thought it would be useful so it's really classic tailoring what kind of a patient as we can have but only when you mean that you do I want to solve it you know temperature cooling bizarre creatures in October but we just would support agriculture other [Music] okay we inputted our it's just the new album parts at UW's contain estimated power this is the CIA - or 10,000 a continent in appleton somatic marker color you know chatting and resolve to the back to the 60s obey us my son Joshua said headman constituted a functional in history a Doozer wasn't in 2010 constitutive way to achieve the higher tier example come inside just a column called memory machine class unity later as you make sure the fidelity and the Democrats strongly with Israel in college she told Dylan song straight across Egypt which is positive a bit too fiddly bits and we tuitions depends on the inside that is yet to see touch upon she possesses event on the table function Jesus time and cost equal to condition issue in 2013 to teach people are T to the human to the skin deep neck shirt immediately to the oil yeah it is we wait at the table cannot infer the back part in your this target is to be in time in also got that much access me to be attack nice to get fun that's Thank You comments regardless so you know snap or stopped or maybe video is kind of potential Fibonacci of ever this is kind of an obvious and it's just close with in here and our applications so how do we guarantee is security or you know there might be a fundraiser and then choose yeah I mean once I stopped I mean the difficulty as a change city ha but once we find a solution or elliptically to solve this problem so you mean like once that I will to improve what what we're going to do about that so I mean the protocol I mean so at the moment we don't expect that very quickly so what's most logical to have like the parameters hard-coded into their protocols but like once there's more people using it and also hopefully when they are incentives and like we can have similar difficulty adjustments just like other protocols like proof-of-work protocols yeah and like if you ask you about the new primitive I don't know I thought there were two questions what's the first one about like how we know whether the new primitives I actually say okay so yeah I mean that is like that's something that I'm kind of getting into myself at the moment because there are also other primitives that I'm looking into into that we want to use but can it be tested that much my heart feeling is the best way to do it of course like you want as many eyes as possible in onto something that you want to use that's in the end how you make it safer for everyone because hopefully if there was an obvious detect and those four and non-obvious attack as well then like many nights would have seen it so like one of the ways that seems to work quite well it's like if you put out bounties for different things that you'd want to evaluate if you stay like if you find a better algorithm you do this then you can win this amount of money and that seems to work quite well to get like people thinking about it and yeah like I've just on a different completely different project I've just had like a huge improvement on one item that was due to a bounty that we set on it so that's the best way I think at the moment of course you can also do the same thing that you like get many academics and give them grants on that directly doing research on it I think the combination of those two is the best one is any question [Music] but the group is huge I mean the group is so huge that's so incredibly unlike let's never picked up yeah but it's a very interesting question like I mean I think like there is no absolute certainty that squaring is always better than say taking power so for right and it could give you a little apart but we're looking at all these things like I think the big question I mean the big surprise would be if it's not sequential for example if you know the modulus of the RSA group then you can just reduce modulo pi and then you're done immediately right so that would be a huge problem now if it's taking fourth power its power that's not so much more fun because it's less sequential but it would be different it wouldn't be a problem if like the larger the power you take fast servers because then you can paralyze but we know that I mean there will be links to that because at some point your chip will just get so big that even the speed of my it'll take a long time so that's why it's very to sequester if you're interested in like we are thinking so since for everyone coming to this workshop so I know this is a pretty up for but it's for coming yeah access for thank you [Applause] you