Hello, what do communities consider fair compensation and resettlement in the event they are displaced? Did you know that some development initiatives results in displacement? What is the effect of this on women? Does customary land tenure or rather does customary land titling result in stronger tenure security? What are the experiences of planning a city bottom up? These are some of the key questions that will be covered in this session. So please do join us.


Chris football dog. This was the best escape artist player of all time Literally of all time. This guy was the best dude. He was a goaded. I Want him at that dirt in the summertime? I want to play him at all in the summer time I was probably like one in five against this dude. I remember that one dove though Chris football. Oh, okay. You get a nice sweating. Let's go man Oh He's got stamina on the quarterback. He's gonna be doing something nasty. Yeah.  Oh My god, I didn't think they'd click me on howlin. Oh, that was just great defense at boys like what's going on here now We got the double move from hella always got outside of princess I've seen what I needed to see we would have got a pick on the first play If I knew they'd cook me on that hard flat.   No sense My own dog It's so so free only man in the world playing this game with 30 yard Do this guy has the best run defense in the history of There's literally not a better person better run defense than him. They don't want to play right now.  Come on. Give me that dumb. Let's go man.   I don't know what you're even trying to do here, kid That's how I like what are you even trying to do? Oh, what is that runny lot? What exactly are you doing down here, kid? No, let's go This dude was the best player in the world with a skate bar He really was he really was the best player in the world with a skate bar Oh, he's a cover. Oh my god.  It's a glitch. That's why he run that Okay. All right. The three. I don't know what to do against the three tight ends.  It's quarterback. I can't fumble enough with the quarterback for him to for him to be in the game GGs GGs old GGs GGs good defense


Even you and I have been instructed to try to take on the character traits of Allah when the prophet says so the law of remedy was unknown. Take on the character traits of God to the extent that is humanly possible. In other words, Allah is merciful. We are to try to be merciful. Allah is just, so we are to try to be just. Allah is the one who is forbearance. We are to try to be forbearant, etc., etc.


Hi everyone Sean with jaspyscasebrakes.com here doing 2019-20 Penini mosaic cello two box break pick your team number eight Where we're giving away the new Orleans pelicans all you had to do was How to be entered by two or more teams in the break get entered to win No max entries by two teams get one entry by four teams get two entries by six teams get three entries So on so forth some details about the product itself No veteran common ship in this all parallels all color all ship But all rookies also as well obviously, but no veteran common ship except for obviously LeBron James Luca Donchich so on and so forth so Here is the list of customers and their teams and New Orleans pelicans obviously were given away So let me copy the customer list here over to a new sheet and We're gonna sort this by first name So David with two spots gets you one entry Eric with four gets to Jernigan with two gets one Joe gets two entries Kyle gets one entry Mark gets one entry Nick gets three entries Summon gets two and Tammer gets one so I take all of those we got 14 entries for the randomizer and name on top after One of two three times gets the pelicans. Good luck one two and Third and final time congratulations to zoom in he stays on top You've got yourself the pelicans in the break Congratulations now Let's find something nice for you. Cool. So let's print and rip So here are two boxes We're gonna do one box at a time and just stack them and then go through them We all know the rookies. We're looking for Summon, I didn't do it. You did just by buying in You got yourself more than two teams give yourself the chance or two teams or more and You got that a last spot mojo for the Orlando magic and Jeremy stack as well It's a real thing. I love these low key I love these late-night breaks with you guys Because obviously you guys are all amazing people and the chat is awesome, but on top of that Get to watch some King of Queens in the background Kind of see myself as a Doug, you know funny, it's serious Doug and Kerry the Jerry Stiller really makes it to Rest in peace Jerry Stiller. So there's six packs So anybody have any sense of the finals are over and everything is wrapped up for this year Anybody have any bold predictions for NBA? 2020 or 21 There you go Next season Player wise team wise Who's our picks? What are the future picks guys? Joe doesn't like betting favorites. He likes going With the long shots or not long shots, but a little bit of dark That way they kind of give you a little bit better odds and stuff Tamar's going nets to the finals Okay, let me ask you tamar. Do you think nets currently to the finals or nets when they add a third? Kingpin into that that team I Don't think current team does it I Think once they add a player, which they're obviously actively trying to do and make it a three-headed monster there Joel's going lakeshow Joel, what do you think Clippers look like next year? Do you think they end up with? George and Leonard still How do they look? You like it the way it is? I Don't think they do it the way that is tamar. I mean I like the confidence I mean they're actively trying to get a third person there a big third person there Which I think they'll probably succeed him at what cost who knows second team in LA can still be a Pretty good team Joe. There's room for two successful teams in LA Big city large population Cool. Good luck everybody Keras definitely has to stay Tim Hardaway, Jr. Silver for the Mavericks zoom in KZ Akpala rookie green Going to the Miami Heat Kyle Tyler Harrow For the Miami Heat Going to Kyle Luca Donchich for the Mavericks and zoom in Is it Andrew? I'll double-check again Jordan pool rookie green For the Warriors and zoom in Kobe white NBA debut for the Bulls and Nick Stover LeBron James will to win Going to the Lakers Nick Stover Bryn Forbes Silver for the Spurs and Joe Anthony Davis Jam Masters Silver Mosaic going to Lakers Nick Stover LeBron James give-and-go For the Lakers Nick Stover LeBron James will to win also going for the Lakers Nick Paul George Jam Masters Silver going to the Clippers and Mark Nikhil Alexander Walker rookie Silver for the Pelicans zoom in and Pete Cammo Grant Williams for the Celtics and Joe Cameron Johnson NBA debut for the Suns and Jernigan PJ Washington NBA debut for the Hornets and Joe Darius Basley For the Thunder David Isaiah Roby for the Mavericks and zoom in Jason Tatum for the Celtics and Joe Tremont waters Celtics and Joe Nicola Melly Pelicans and zoom in and Darius Garland and The Cavaliers going to zoom in as well I just sent a text to check Andrew, but typically it's no vet commons ship unless otherwise said on there But we'll see yeah, what Ryan says Let's do mosaic football Let's especially do that filler for the box war 36 bucks guys giving away a thousand dollars in break credit plus 2019 optic baseball, so you got Fernando Tatis, Jr. Vlad Guerrero, Jr. You got Kevin Bijio. You got Kyle Tucker. You got Eloy Jimenez. You got Peter Lonzo So for 36 bucks you could not only get your own box of 2019 optic baseball and hit some of those guys or all of those guys remember there's also hot Hot boxes in parallels and also in autos And You could also win yourself a thousand dollars in break credits for 36 bucks. I say that's worth it I mean we just posted it at like nine o'clock, so it's only been up for literally like two hours or so and no worries I'll double check. I'd be like I said I send a text message. I Don't make any rules here. I just go by what's told me, you know, so but we still got 36 people in here watching listening actively participating in some cases, so We can easily move anything tonight guys Especially like I said that filler that's got 22 Did we see one Suman did we see his name? Oh, you're hoping for one. I thought you saw one Okay, so Andrew the Joe has spoken and all card ship So that'll be also be for the previous mosaic when I did too. So there you go LeBron James will to win Lakers Nick go-go batadze silver mosaic for the Pacers and Mark Nation LeBron James give-and-go Lakers Nick LeBron James base Lakers and Nick Trey young silver second year, but still Atlanta Hawks Eric Angel bull bull. I think he's still riding a little bit of a high right Denver Nuggets Nick Everybody's excited to see what he can do next year RJ Barrett going to the Knicks and Kyle Tyler Harrow NBA debut for the heat Kyle Bojan Bogdanovic silver for the Jazz Nick Zion Williamson NBA debut green New Orleans Pelicans zoom in John Merant base Memphis Grizzlies zoom in There you go zoom in LeBron James Jam Masters Lakers and Nick RJ Barrett NBA debut for the Knicks and Kyle Brandon Clark NBA debut silver like him a lot zoom in and the Grizzlies Rui Hachi Mura like him even more Green for the Wizards and Jernigan. I'm all on that Rui hype train guys No, you're good Andrew. I just go based off of what it says. You know what I mean? I'm I believe so Andrew Casey Ackpala pink for the heat and Kyle PJ Washington, Jr. NBA debut for the Hornets Joe Darius Basley for the Thunder and David Quinn Derry Weatherspoon for the Spurs and Joe Ignas Brazdikas for the Knicks and Kyle and Kevin Porter, Jr. For the Cavaliers and Summon LeBron James MVP's This one's going to the Cavaliers and Summon Anthony Davis Lakers Nick Lucas Samanich for the Spurs and Joe Kendrick Nunn NBA debut for the Heat and Kyle and Brandon Clark NBA debut for the Grizzlies and zoom in There you go guys. That was the break That was 2019-20 Panini mosaic cello two box break pick your team number eight Jasper's case breaks calm pick a team number nine should be going up in the store I think we can do nine and ten So keep an eye out pick a team nine Jasper's case breaks calm. I'm Sean. Thank you very much for being more to that And we'll see you next time


Welcome to JSA TV Live, the live streaming newsroom for telecom and data center professionals. Today we are in sunny Austin, Texas for day two of Data Cloud USA. I'm Allison Whelan and joining me today is Thomas Hill, Vice President of Acquisitions and Investments at Lincoln Rack House. Thomas, welcome to JSA TV. Thanks for having me, appreciate it. Yeah, of course. So what brings you to Data Cloud? What are you hoping to get out of this week? Yeah, so it's always two-fold. One, learn about prevailing trends in the industry, always keeping up to date on new advancements. And then two, it's the networking, obviously, wanting to collaborate with other organizations and like-minded groups to see if there's opportunities to collaborate in the future. Yeah, absolutely. And your expertise is in data center acquisitions. Can you share with us some of the elements that go into your evaluation when deciding on a potential purchase? Yeah, sure. So I've got a traditional real estate background. And I always start high level from that perspective of understanding the bones of the investment, operations, operating expenses, revenues, the tenant quality, and the remaining term on the lease. And then zoom in further to the data center components of what's the power story? What's the pathway to additional capacity to add value to make sense of the investment? Absolutely, I'm sure that background really helps and comes in handy with that. So Lincoln Rack House recently made headlines for an acquisition in Atlanta. Can you tell me a little bit about that? Yeah, sure. So we're very excited. It's a 185,000 square foot facility in Alpharetta. Currently, across two halls, there are five megawatts today available for lease. We're already underway with an expansion of that facility for an additional eight megawatts. And then down the road, there's an opportunity for an additional expansion for a standalone facility for up to 30 megawatts. So we've got high hopes for that one. Awesome, yeah. It sounds like a lot going on with that one. And then New Albany, Ohio has been dubbed the next Silicon Valley. And then earlier this year, Lincoln Property Company and Harrison Street announced the acquisition of a 190-acre land site that will serve as a multi-use technology and distribution park. Can you tell us more about that data center campus development? Yeah, absolutely. A lot going on in New Albany, Ohio. First, it was the hyperscalers in Meta, Amazon, and Google. Since we put our land under contract, the Intel site for the chip manufacturing was announced. So we're very excited about that as well. We're approaching that as a mixed-use project with industrial and data center. About a million square feet of industrial is planned for the project. And then anywhere from 1 to 1.5 million square feet of data center depending on if we do a single user campus style environment or a multi-tenant style environment. And as you mentioned, we're underway on the substation. There'll be an onsite substation coordination with AEP. And we just began construction of that, so we're very excited. Awesome. And what would you say are the top trends in the data center industry right now? Yeah, so what we look for is keeping tabs on what the hyperscalers are doing, where they are, where they're going. And then importantly, from our perspective, since we are real estate developers, it's understanding what can they handle themselves versus what do they need to lease space and partner with third-party developers such as ourselves. And then secondly, it's just the very basic supply-demand metrics of traditional real estate. It's monitoring the primary, secondary markets, understanding the predominant stories and trends. Very recently, you saw a lot of supply get gobbled up in the primary markets, not only by hyperscalers, but also large-colow operators and enterprise users. So it's just reading that, anticipating trends, and then if you want to acquire or build, getting ahead of that trend, because oftentimes that speed to delivery will win deals and have successful projects. Yeah, that's amazing. And where can our viewers go to learn more? Yeah, you can check out our portfolio at rackhouse.com, and we're also active on LinkedIn under LinkedIn Rack House. Awesome, well we look forward to hearing more from you guys and I'm sure we'll have you on again and you'll have even more acquisitions underway. So thank you for joining us, and thank you viewers for tuning in to Data Cloud USA and JSA TV Live. Happy networking.


Why would you do that? Oh my god! Oh my god! Did you see that?  Oh my god. My skin is crawling. Fuck. Oh my god. Did you see that? Oh my god. Did you see that?  Oh my god. My skin is crawling. Fuck.


Hi, so I'm going to be talking today about some recent work with John Paul de Gabrieli, Kenny Patterson and Jacob Schott on backdoors and pseudo random number generators. So the story really begins here with the Snowden leaks in 2013. So overnight the threat model changed and we needed to start considering governments as potential adversaries. Now among the Snowden revelations was evidence that the NSA had colluded with software providers to insert backdoors into their cryptographic software. So when we talk about a backdoor, we mean a deliberate vulnerability in a scheme coupled with some secret backdoor information. And it's designed in such a way that if you don't know the backdoor, the scheme appears to be secure and doing its job. But if you do know the backdoor, then you get some advantage in subverting the scheme. Now a good sort of randomness is essential for many cryptographic applications. And correspondingly, a pseudo random generator or a pseudo random number generator of input is pretty ubiquitous in cryptographic implementations. And we'll define both more formally as we go through. But the key difference is that a PRG is deterministic, whereas a PRNG is able to gather entropy from its operating environment. Now it's the ubiquity of these primitives and implementations coupled with the fact that often if the source of randomness fails, then the security of the scheme which is relying on it crumbles as well, which makes these very attractive targets for attackers. Sorry, okay, so it makes these very attractive targets for an attacker who might wish to optimize the impact and the spread of a backdoor. And this isn't just conjecture, we know this has really happened with the infamous Julie C, which achieved widespread deployment and has been shown to be exploitable in practice, and which more recently reared its ugly head again in the June of her firewalls. Thank you. Okay, so in 2014, Valarie, Paterson and Roggaway revamped the field of kleptography for the post-snowden world. And in the process, kickstart a whole new line of theoretical research into this area. And it's very much into this strand of work that ours fits. Now, in particular, the first post-snowden treatment of backdoor PRGs was by Doe de Zetal in 2015. And we take this work as our jumping off point here. So the question we see to explore is, to what extent can a pseudo-random number generator be backdoored and simultaneously provably secure? So to this end, we strengthen existing results on backdoor PRGs and we initiate the first study of backdoored PRGs of input. So we come up with definitions and models. We present a construction of a robust backdoor PRG and we have an impossibility result, this theoretical lower bound which links the so-called backdoor ability of a robust PRG to its state size. So I'm going to try and touch on all of these today because whilst the work on PRGs is probably our main contribution, I think the work on PRGs is quite a nice way of introducing some of the ideas that we're ultimately going to use in that later work. So what is a PRG? So a PRG takes a short, truly random string as input and outputs pseudo-random bit strings of arbitrary polynomial length. And we modify the syntax slightly here to facilitate our backdooring definitions. So formally, a PRG is a tuple of algorithms where setup outputs a pair of parameters for the generator and PP denotes the public parameter, which is an input to all other algorithms, and we're going to use BK to represent the secret backdoor key. Now in it outputs an initial state for the generator S0 and next takes as input the current state of the generator and returns a public output R and an updated state S prime. And you can see it's essential that the state is kept secret because any attacker that knows a state has everything they need to be able to compute all future output. Now when we talk about PRG security, well at the very least you want these outputs to be indistinguishable from random bit strings. But we're actually going to be interested in PRGs with a stronger property, which is that of forward security. So forward security says, suppose at some point in time the state of your generator gets compromised. Now clearly all bets off about future output, what forward security asks is can previous outputs remain secure and pseudo random even conditioned on knowledge of the state. So now to backdoor PRGs, which we define in line with the definitions given by Dodas, Sertal and their PayPal. So our backdoor PRGs are a tuple of algorithms. We've set up in it a next just as before, but now we add this new algorithm B, which is highlighted in red where B stands for big brother and this models our backdoor adversary. Now big brother is internal in the sense that he's built into the specification of the PRG itself, but he's also kind of external in that other than getting the backdoor key, he can only observe public outputs and parameters. Now there are various different ways that big brother might seek to benefit from a backdoor. So for each of these different backdooring goals, we write a game which captures that goal and an advantage term to measure how well big brother does. And we'll see an example of this in a couple of slides time. So putting it all together, we say our tuple of algorithms is a backdoored forward secure PRG of a given type. If without knowledge of the backdoor, the algorithms form a forward secure PRG, but big brother with his backdoor key gets some advantage in subverting the scheme. So the authors in the paper from which we take our definitions present a number of different constructions of backdoor PRGs. However, none of these allow big brother to recover past output values while simultaneously being forward secure. And when you think about it, the two seem kind of odd, right? Because forward security is all about protecting past outputs and we want to subvert them. So this is an open problem. Can these two properties coexist? And it turns out the answer is yes they can and even worse. So we come up with a new backdooring model in which we initialize the generator with some state as zero. Then we run the generator forward to produce Q outputs. Then big brother is given one of those outputs, just one and the secret backdoor key and we challenge him to recover the very first state of the generator. And you can see this is a very strong form of compromise because of the first state. He can compute everything that happens subsequently and you can actually show that this is strictly stronger than any of the models given in the paper by Dota set up. Now we come up with a couple of constructions of PRGs which achieve this. But I'm gonna talk about one in particular today because we're ultimately gonna use a similar trick when we backdoor a PRNG. So the key components are we take a forward secure but non-backdoor PRG and we're gonna augment it using a special encryption scheme to give it a backdoor. So this encryption scheme has ciphertext that look like random bit strings and it's statistically be randomizable which means we have an efficient algorithm that takes input a ciphertext and some random coins and it returns a new ciphertext encrypting the same underlying message and to be statistically be randomizable means that an honestly generated ciphertext and the re-randomization of a ciphertext generated with arbitrary randomness are statistically close. Now in the full construction we need a scheme to have a few extra properties that I'm not really gonna touch on here but it can easily be seen to be achieved with Elgamal with carefully chosen encoding schemes. So for the construction we begin by simply generating the parameters for the underlying PRG and the encryption scheme and we make everything public except for the secret decryption key which perhaps unsurprisingly we're gonna keep back and give to big brother. So to cross the initial state of our backdoor PRG we begin by generating a state S0 for the underlying PRG which we then encrypt and it's these two components together which form the state of the backdoor PRG. So when next is called we need to do two things we need to produce output and we need to update the state. So to produce output we simply output the ciphertext in the state as it is and then to update the state we call the underlying PRG on S update the state accordingly and use the output produced to re-randomize that ciphertext in the state. So to see how this helps big brother now by construction whichever output he's given is a ciphertext encrypting S0 the first state of the underlying PRG. Glossing over details here but essentially this gives him everything he needs to be able to reconstruct the first state of the backdoor PRG and in the process all other states and outputs. Now the encryption the correctness of the encryption scheme ensures that big brother succeeds in probability one so it's the very effective backdoor and due to the properties of the encryption scheme all of these ciphertexts appear pseudo random and independent of each other. So the forward security follows from this and the fact that the underlying PRG itself is forward secure. So at this point we're kind of forced to conclude that unfortunately deterministic PRGs are totally susceptible to backdooring. It's hard to think of a much more devastating form of compromise than that that we've just seen. So it makes sense at this point to turn our attention to PRG's of input both because they're widely deployed in practice but also because intuitively you feel that this flow of entropy into the system is gonna make big brothers job harder and it turns out it does to an extent. So what's the PRG? We define PRG's in line with the model given by Doe de Sartel in their 2013 paper. So essentially a PRG is a deterministic PRG with a refresh procedure added. So refresh is an algorithm that takes an input that generates a state and some entropy input I and it combines these to produce an updated state as prime. Now these entropy inputs are gathered from a source of randomness which may be imperfect. In the real world this will be drawn from things like disk timings and keystrokes. So to model this process we use an algorithm D which we call the distribution sampler. And in particular the addition of this refresh algorithm means that we expect a good PRG to be able to recover from state compromise provided sufficient entropy that enters the system. So to capture this the strongest security notion for PRG's is that of robustness. So here we imagine a scenario where we set the generator running and we flip a bit B which determines whether the adversary will see real or random outputs. Now in contrast to the PRG setting where the adversary is passive and can just observe outputs here we give him a number of oracles which reflect different ways in which he might compromise the state of the generator or influence if entropy source. And what robustness says is that even in the face of all this compromise and all this interference no bounded adversary can work out what that challenge bit is much better than guessing. So this is a very strong security property. Now the authors in the paper from which we take our definitions present a construction of a provably robust PRG of input and conveniently for us it has output which is produced by a deterministic for the cure PRG. So all we need to do is swap this with the backdoor one that we just spoken about tweak the entropy accumulation of it and we immediately obtain a PRG of input which is backdoor in the sense that now big brother can take one output and he can compute everything going back to the previous refresh call and everything up to the next refresh call. But there's a snag here right because as soon as the generators refresh with sufficient entropy the state is going to evolve to something which is statistically unpredictable and big brother is going to need to capture another output in order to regain his backdoor advantage. So it becomes clear that if we're gonna backdoor a PRG in any meaningful kind of way we need to be able to move past these refresh calls. This motivates our backdooring models. So scenario we imagine is a PRG is initialized with some state as zero. Now as zero is an evolve by a sequence of refresh and next calls which we record in a refresh pattern and ultimately we're going to use this pattern as a parameter of the experiment. Now at some point we stop and we give big brother some arbitrary output R i along with a secret backdoor key and we see what he can do with this. Can he produce some arbitrary output R j or some arbitrary state or can he do even better and go all the way back to the beginning computing everything as we were able to in the setting of deterministic PRGs. So we present a construction of a robust PR and U of input which allows big brother to recover arbitrary past outputs even when they are separated by these refresh calls. So the key components are we take a robust but non backdoor PRNG and again we're gonna augment it using our special encryption scheme. So to construct the initial state we generate a state S for the underlying PRNG which is shown in yellow here and you can think of this as the active part of the state of the backdoor PRNG because we're then gonna add to it a whole lot of redundant space which is shown here in blue and we're gonna use this space to store encrypted snapshots of the active part at crucial points during its evolution namely after refresh calls. So at a given point in time the state of our backdoor PRNG is gonna look like this with a set of encrypted snapshots stored in the state. So when refresh is called we simply apply the refresh algorithm of the underlying PRNG to the active part and update it accordingly. But now at the conclusion of a period of refreshing we take an encrypted snapshot of the active part of the state and we store it in the state of the backdoor PRNG by shifting everything else down to make room for it. So you can see that as much as we have taken on new information here we've also lost something. The last side of the text has been pushed out the state and we're not gonna be able to get it back again. And you can also see that the number of encrypted snapshots we can store is limited by the size of the state. So now we have a state that has a lot of useful information encoded in it and we need to get this out to big brother somehow. So to do this we produce output in two distinct ways and we alternate between them in a way that appears pseudo-random. So the first way is we simply leak encrypted snapshots in the form of output. Whereas the second way we compute output by applying the underlying PRNG to the active part of the state and crucially output produced in the second way is reproducible if you have the right encrypted snapshot. So for big brother to succeed here a couple of things need to happen. Firstly it needs to be the output he's given consists of the encrypted snapshots and that the output he's targeting is one that was produced in this latter way. And also it needs to be that the output he's targeting is in range. In the sense that there haven't been so many refresh calls between the two outputs that the snapshot he needs has been pushed out the state and lost. So correspondingly big brother succeeds with probability approximately a quarter to target values in range and zero otherwise. And throughout careful re-randomization of all these ciphertexts ensure that they appear pseudo-random and independent of each other. And security follows from this and the robustness of the underlying PRNG. And there are many optimizations and variations possible on this basic scheme. So suppose for example, you were targeting a specific output value that was going to be exposed to the non-center protocol and you could make sure that the encrypted snapshot you need is always stored in the state and achieve a much better success probability. Now in reality as you can see the situation is not quite so simple. And that's because robustness is such a strong security guarantee that to be able to give the state all this extra structure and still prove the generator to bust takes some quite delicate work. But it's possible and so we're forced to conclude that unfortunately PRNGs are also susceptible to back-during and even the really strong property of robustness is no guarantee against us. But there is some glimmer of hope here because you'll notice that our back-door PRNG has a very large state and that Big Brother's ability to go back is fundamentally limited by the size of the state. So this raises the question of is this somehow inherent? And it turns out that the answer is yes. So in our impossibility result we prove that for restricted but still important class of distribution samplers that there's a limit dependent on the state size to how much information about previous states even an unbounded adversary can recover. So to give this equation some context we're imagining a scenario where we run the generator Big Brother's given some output R and we challenge him to recover not just one previous state this time but a vector of J states each of which has been separated by a high entropy refresh. So that's the left-hand side of this equation and because my entropy measures how difficult it is for an unbounded attacker to predict something if Big Brother who is bound is gonna stand a chance the left-hand side is going to need to be very small. Now making Big Brother's life more difficult on the right-hand side the epsilon term corresponds to the level of robustness security of the generator. If the generator's robust epsilon's gonna be very small and the log of it reciprocal is going to be very large and even worse this large term scales linearly with J so the more refreshes we ask Big Brother to try and bypass the larger and larger this term gets. Now the only thing making the right-hand side smaller is this minus N term where N is the state size of the generator but of course this is fixed in the beginning so as we ask Big Brother to go back further and further and J continues to grow at some point it's gonna hit a wall where the right-hand side is simply too large and Big Brother hasn't got a chance of being able to recover the information that he wants. So in conclusion the bad news is that despite their strong security properties both for secure PRGs and robust PRNGs of input are both susceptible to back-douring but the better news is that robust PRNGs do offer some inherent resistance. So in the full version of the paper we have strengthened our impossibility results to get bounds on recovery of past output values and prediction of future output values and avenues for further work would be to consider immunizers so ways in which we can post-process the output of the PRNGs try and diminish Big Brother's advantage and it would be good to have tight bounds for our impossibility results and perhaps most importantly of all we know robustness isn't enough but can we find another property of PRNGs which excludes the presence of a back door? So that's the conclusion of my talk thank you for listening.


This is the eighth year of Phoenix Express. Multinational naval leaders have arrived in Sudabeg, Greece for the Phoenix Express 2014 presale conference. The conference is one of the final steps before the at sea portion of the exercise. Well, Phoenix Express is a multinational exercise designed to improve maritime security and stability in the Mediterranean region. This year we have 10 nations participating, four from North Africa, five from Southern Europe, as well as the United States. And throughout the exercise, we're going to concentrate on interoperability, working with our other nations' navies. Phoenix Express allows participating nations to work side by side to better synchronize responses to potential real world scenarios. The value is that we are creating common standards and procedures that facilitate interoperability among units. In that way, we can work collectively. We can execute operations collectively following the same procedures and speaking the same language. The purpose of the exercise is to increase maritime security in order to protect and improve international trade. Well, frankly, events like Phoenix Express, it makes the Mediterranean safer. As we know in the global world and our global economy that we're all a part of, 90% of all international trade by volume travels over the sea. So what happens on the sea is important not only to all of our jobs, but all of our economies. The at sea portion of the exercise is slated to run from May 24th to June 2nd. Petty Officer Andrew Brame, Suda Bay, Crete.


Guys, how are you today? I hope you're doing so well. I am here with another design team video for my own product line, the Gina Arons product line over in my Etsy shop, and I always do one of, I do the videos every month with the team. I don't just leave it up to them. This month our prompt is washi tape. Washi. So we're going to make some homemade washi tape and I'm going to use this opportunity to create some washi tape or art tape out of some different things I've just found around the house because you know we've been remodeling and I keep finding strange things hidden in strange corners. This is I believe medical tape, cloth medical tape. I had bunion surgery a few years back and before I had the surgery I used to like to do walks like the Avon Walk for breast cancer in San Francisco which is a great cause and a great walk by the way. But I had to tape up my bunions and you know everything yeah because it was painful so I think that's what this is. It's very old and sticky but we're going to use a silicone mat, nonstick mat here, nonstick craft mat and I'm going to stick different kinds of tape to it. This is just masking tape. You want plain, obviously plain kind of tape. This is not a new, this is not a new thing. This is an old thing. I'm only going to put one of that wide tape because I don't even know if it's going to work. It should work and it should yeah peel up really easy. I'm going to put them kind of close together. Actually I'm going to put another piece of that and we are going to stencil and stamp on them and make our own decorative tape. I want to give you guys some ideas of what you can do. Now if you don't have a nonstick you're thinking well that's a great, great idea. I've got masking tape or some other kind of tape that would work but I don't have a nonstick mat. You can use parchment paper or wax paper but I will be honest with you I've had limited success. It doesn't always want to peel up well. I find these nonstick mats are really great now. I will also tell you this is not a Ranger nonstick mat. This is from Amazon and I cut it down to be the size so it would fit in my cookie sheet because I use it for a lot of different things and then I can paint little things or like make the washi tape. I can put the sheet in here and stick it up on my shelf to dry off of my desk because my room is really little. I will, and they come in a pack of three and they were super cheap so I will, that never works well, I will put a link in the description of the video so you can go down there and check it out and maybe if you can't afford, if you're on a really limited budget maybe you want to go in with a couple of friends and split it because I think they come in threes. I think I come in this color and I think white. So now we need to get them.