LoRa/LoRaWAN tutorial 21: OTAA, ABP and LoRaWAN Security

[@jithin_isaac]

In the near future, Your video series will surely become the starting point for anyone who wants to work on lorawan... :) Though I've extensively worked on lorawan, many of my doubts have been cleared by watching your videos.. thanks!

[@Sefton.]

Already has one person entering the field watching!

[@meghanathreddy875]

since u have worked lot on lorawan pls clarify my doubt does enddevice can communicate directly with network server,if so wht is the use of using gateway

[@Toto-cm5ux]

Thank you for my exam !

[@TheSiddwazz]

Very well described and simply explained procedure for LoRaWAN beginners.

[@viveksingh-dx2cs]

Hi The video tutorials are very well explained, I am new to LoRa, I am exploring if a text file around 200kb can be transferred? Even if in pieces? how much time it will take at 2 km distance at EU bands

[@xuhuang648]

Nice video, thank you!

[@julienlantrin2637]

Hi, thank you for the video. I'm not sure to understand. During the video you say that network server can decrypt payload and at the end you write "it's possible to have end-to-end encryption" Does the network server have an access to the LoRa data ?

[@Mobilefish]

Read: www.thethingsnetwork.org/forum/t/separation-and-distribution-of-otaa-keys/17225 and www.thethingsnetwork.org/forum/t/where-is-appskey-stored-and-handled/29819/2

[@MU3LL3S]

I got a simple questions. Is this code valid for another host/server apart from TTN? Can you use the IDs and Keys from another provider???? Thanks

[@Mobilefish]

To be honest I do not know. But if I were you I would ONLY use the IDs and keys generated by the other provider.

[@Teutathis]

If I may ask, Do you know of any publicly available pen testing tools made specifically for LoRaWAN?

[@Mobilefish]

Sorry I do not know but if you do please let me know. I am also curious.

[@dhanush2060]

How many lora node can communicate with single channel gate way.

[@CutterCo]

If I buy some end device which needs a connection the a specific network server, how does the gateway know which network server to send the message?

[@Mobilefish]

You specify it yourself. See www.mobilefish.com/download/lora/lora_part28.pdf page 54,55 and 56

[@CutterCo]

@@Mobilefish Ok, at the gateway... I was a little confused about this. So the network server and gateway are paired. That's fine. I was actually curious how the message ends up in the right application server. Does the network server keep a map of the AppKeys and addresses of all application servers in the world or how does it work? Is the mapping updated between network servers? Or can the message travel between network servers until the right application server is found (if it's not found in the first one)? Are there other components in addition/between network servers that handle finding the right application server (sort of routers or name servers)?

[@meghanathreddy875]

pls clarify my doubt does enddevice can communicate directly with network server,if so wht is the use of using gateway

[@Mobilefish]

An end device does NOT communicate directly with network server. An end device communicates with a gateway (thru LoRa radio) and the gateway sends the received data to the network server using an internet connection. Note: It is possible to install a network server onto a gateway. If you find this confusing. Think of the following: Your (4G) mobile phone (= end device) sends data to your mobile operator mast (= gateway) and your mobile operator sends the transmitted data to a server for example (google) (= network server)

[@edelstoff4802]

What does "EUI" mean? I know the meaning, but don't know how it's written. Please help :) Great Vid btw. Keep up the work.

[@Mobilefish]

EUI = Extended Unique Identifier. A globally unique number.

[@mahmoudgamal1214]

What is MIC? and How it is generated?

[@CutterCo]

Correct me if I'm wrong. I'm still learning myself. But I think it goes like this: MIC stands for Message Integrity Code. It tells if the message has been forged or not by some other party. It is calculated from the message with a help of a secret key (AppKey) which only end device and network server know. If you don't know the secret code, you can't end up in the same MIC that end device or network server can calculate. Calculating and verifying MIC prevents e.g. forging the source, destination or the payload of the message.