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#Beacon uuid generator plus
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If you run a lottery but nobody knows how you’re choosing the winning number, people might be wary, whereas if you chose the winning numbers by picking them live on TV in a jar, then people can see you’re unlikely to bias the result. This is useful in order to increase public trust in one’s system.

Verifiable randomness is another kind of randomness that can be proven to have been generated in a given (honest) way.

Public randomness is a specific kind of randomness that is typically used in lotteries and other public processes (jury election, population sampling, etc), where you want to be able to say “Look, I’ve got nothing up my sleeves, I just took the random value here and anybody can check that I didn’t cheat”.

In case you need a refresher or are just curious about what this talk was about, here are my key takeaways: We have invited interested parties to start using drand in their projects, or to join the League of Entropy (opens new window) to contribute to a secure, distributed randomness network. Finally, we also did a recap about the current drand network being run by the League of Entropy and available to the public as a source of randomness. The Drand team attended North Sec to present a talk titled “Public, verifiable, and unbiasable randomness: wassat?” whose goal was to introduce the different flavours of randomness to the audience, as well as to explain some of the quirks that make randomness a sensitive topic, and why it’s especially difficult in the distributed, public case. It is traditionally in Montreal in May and starts by featuring a few days of deep dive trainings, followed by two days of conference sessions and finishes with the one of the largest on-site Capture The Flag (CTF) events in the world taking place over the weekend.Īt North Sec you find plenty of security professionals and hackers alike in the audience, and the range of talks is usually well balanced, from pen-testing to social impact or legal ones, including cryptography, malware, and more! It features both attack- and defence-focused presentations and is usually very enjoyable. North Sec (opens new window) is the biggest conference in Canada that focuses on IT Security and its many facets. You can find the slides ready to be downloaded on IPFS (opens new window) and if you want to watch the video of the talk, it is already available on Youtube (opens new window).

If you don't need that level of detail you can skip minor or even major – it's down to you.Drand was recently presented at the North Sec conference! Here is a brief summary of the event and the drand talk, as well as the answers to a few of the interesting questions we received. Minor: You're in the shoe department on the third floor.UUID: You're in a Acme Hardware Supplies store.The combination of all three identify the user's precise location: For example, if your flagship London store has 12 floors each of which has 10 departments, you would assign each of them a different minor number. The minor number can (if you wish) be used to subdivide within the major number.

That major number must be between 5, which is enough to identify every McDonalds and Starbucks outlet combined! So, if you have 10,000 stores in your supermarket chain, you would use the same UUID for them all but give each one a different major number. The major number is used to subdivide within the UUID. It should identify you or your store chain uniquely. The first number is a long hexadecimal string that you can create by running the uuidgen in your Mac's terminal.

#Beacon uuid generator plus

IBeacons are identified using three pieces of information: a universally unique identifier (UUID), plus a major number and a minor number. As soon as iOS has anything tell us, it will do so. Second, we give that to our CLLocationManager object by calling its startMonitoring(for:) and startRangingBeacons(in:) methods. First, we use a new class called CLBeaconRegion, which is used to identify a beacon uniquely. If you went for "when in use", you'll still get location information while your app is in the background if you enable the background capability, and iOS will notify users that this is happening by making the device status bar blue and saying "YourAppName is using your location." If you went for "always", iOS will wait a few days then ask the user if they still want to grant permission, just to be fully sure.Īssuming everything went well, let's take a look at how we actually range beacons. This message is really blunt, so users hopefully take a few moments to read it before continuing.īut that prompt is not the only way iOS helps users guard their privacy. If everything is working, you should have received a large iOS confirmation prompt asking whether you want to grant the app access to your location.