IPFS IPFS Camp 2019 - SciFi Fair, 7 Oct 2019

Previous Meeting

Next Meeting

⏯

youtube image

►

From YouTube: Berty Technologies interview at IPFS Camp SciFi Fair

Description

The full interview with the Berty team about their Bluetooth, low-energy libp2p messaging app. Learn more: https://blog.ipfs.io/2019-10-03-ipfs-camp-sci-fi-fair-videos/

Learn more about IPFS Camp: https://camp.ipfs.io/

For more information on IPFS
- visit the project website: https://ipfs.io
- or follow IPFS on Twitter: https://twitter.com/IPFS

Sign up to get IPFS news, including releases, ecosystem updates, and community announcements in your inbox, each Tuesday: http://eepurl.com/gL2Pi5

A

So we're at ipfs, cam 2019 we've got another awesome project here. These are the guys from Brita technologies and I'm just going to let them introduce themselves so.

B

We worked at better technologies, my name is anh Tuan and we are creating message gap, overly p2p and we implemented Lippe to be 12 spots of Araby, le Bluetooth, Low, Energy, yeah blue, to store energy, and we can show you some code. If you want to a.

A

Little bit about like what is important about this transport, why did you need it for the chat application that for the messaging application that you're building and what makes it special yeah.

B

We want to an application, a messaging application. Yes, that can work with an optional connectivity to animate, so yeah yeah. We want to be able to start a chat with maybe 20 people online. Then let's say the three of us: we can go somewhere where we don't have any connection, and we can continue to chats with witnesses. Then.

A

We can one-to-one messages.

B

And when we go back online we can consolidate the conversation.

B

C

B

Of our main goal, yeah.

C

Instead of good for sheriff Davis murder, you just push up on the other front on leg, you can add it in contact on the shower your speedster, so you can connect after two is like a spear. It's.

A

Really a sport, so you do like some level of peer exchange right. So, let's up here, it's.

C

Really nice, because.

B

It's transport, but it's also acts as discovery service yeah. So it's fine you use counter and when you can do a disappear or run you, you will add it to your peer store and you can have a classical. Let me try anything.

A

Okay, so that's cool, so basically, one year when you connect to appear by a Bluetooth that peer is able to exchange with you, the peers that they know about, and that includes I guess, I'm mapping between their Bluetooth addresses and their nickname identity or whatever, so that, whatever you find them in the vicinity about running a Bluetooth scan. You know who they are.

B

We so we, we have demented all see needed interface for the go long version of Liberty be yeah, so we have lamented with transport the listener and capable cone. We declared.

B

A

Transport, ecstasy and transparency exactly.

B

I only want things that you can dial someone really, because you can only talk with someone which is.

B

You we have classical gold, p2p, 12 sports and limitation.

B

Exactly so, this part is native driver writen in Objective C for iOS and Mac OS and in Java for Android. This part will talk with the low-level API and it will expose the Jets profile, which is really like main ways. The only way to communicate with Billy.

A

We've got a number of characteristics and yeah.

B

A

Map to let me to be specific concept exactly.

B

We have a service Bertie and you have three characteristic. You can see that as a kind of API endpoints yeah, so you have which address and PID which are readable. So the Piazza scan your device will read your V Elliott will tell us and your PID. Then you can start to write on your writer if I show.

A

You sprinkles, so the cap profile is actually sure shared during discovery during the scanning. So once you get this these pieces of data, if you decide to that, you want to establish a connection to that here. Then you would tell them through that multi adder, which then activates the transport itself, which establishes by the native driver the connection using the ponies, Decatur.

B

First, step of check, so I wanna show you with this Libby to be part on this device, will ask to the jet semester to read, which address and PID on the jetty slave of your here. Then it will look until your deal as with your own characteristic yeah.

C

B

Then they can agree on the biggest common MTU, which is really important. It has a huge impact on your performance. Then on Lippe to be level you will add, each beer will add each other in the respective Kasturi. Then they will auto connect.

B

Then, when the unshackle is terminated, you have a connection established right and, as you can see, if you call connection right, it will ask to the Jetta master of the Nazi driver. Right data owns the writer of the built-in slave of your peer, but.

A

Let's say you need to it: we need to be kinda like this. Handshake is a two-way process where you've got a master that speaks to slave and then that's leave that other device creates master yeah exactly so that they can see. They can so really this connection. Each of these connect each of these segments is actually unidirectional so to make the direction X. We need to create it on both hands.

B

Exactly you need to have those master, Samael slave.

A

Transport itself handle all of this exactly.

B

You are only natural fiber, which involves I, don't know the.

A

Complexity and from.

B

Liberty, besides, you only have a cone with what mr. white and the red yeah you work on the listener, and it's innate everything. When you have a new Pia and a new connection, you can right away. Then it's.

A

Perfect, so should we are you able to do a quick demo of this, an actual? Let's look at this in action.

C

B

Part is my fine, so, okay.

C

I, don't know if you can see it, but this one I've, only one pier just one at 6:00 p.m. I should.

A

Be other neurons on.

C

The cloud yeah just for sympathy so.

A

This guy's, connected to this guy by a blue ticket man.

C

And that's it like this one, this one is not paper right. You get.

A

Amazing, so what is I mean Bluetooth then allow for these kind of use cases in the past. So ble is a new generation of Bluetooth that allows for generic data transports like this, like what what has made this transport possible, because a few years ago was pretty difficult, Jim.

C

May be truly a winner.

A

C

Continued for me to like.

C

A

Hasn't always like traditionally been easy with loader to create these kind of generic applications where you can just you know, bond with another peer and like speak, a application level. Protocol has been enabled recently yeah.

B

I think it's from Bluetooth Low Energy, because you need to speak with. You know, IOT stuff, and it's.

A

Like you know, the pairing process.

B

So you can just talk right.

B

A

Pretty cool so what's in the future, what's like the next development for this transfer.

C

B

Because really is a pretty slow actually and you can send big pictures, you can send video.

B

You have a future which is L to cap channel and sista to allows you to access to a lot of Al sockets on the radio chip. Okay, and it gives you the bandwidth of Brutus Classic Collection edited through okay, so yeah it's it's. We think it'd be really helpful to improve the stability and.

A

The performance of the collision, I love that you guys have big go Libby to be clearly has a strong usability and a strong applicability in the use case because they need like this transport transparency so that they're able to switch between connected and disconnected modes. So clearly, you know. Let me to be gives you that level of abstraction this great, that you went ahead, implemented it integrated in iOS and Android devices. We definitely have to continue working together with a legitimate community yeah.

B

Thanks a lot for your work.

B

We will open the preview, so if you are developer or if you want to contribute or give us some feedback, we enter in this project, we will read your application and circle base, including stability, post box. Awesome.

A

So please do that. This is an amazing project and it's going to be a great advancement for offline use cases, for let me to be as well so please join this team and helping make that possible.