Provisioning how to generate a public key in android app

[matej1410]

Hello.

In according to screen below, how to generate public key X and Y (with no OBB autentication)?

Should I create a method for generating these values?

I found something here:

https://github.com/NordicSemiconductor/IOS-nRF-Mesh-Library/issues/29

In this case in logs we can see that 

Public Key = C6B34656780894C87098280F63BE363592DD048A4663DA814A65A78CE3B5FB40AAB6A41CBED8A9BF98F6A716027767E8172E63C8E92F39609ABBEFE63FE4FF61

how to generate key? should I create a byte array?

 byte[] data_public_key = new byte[]{0x03,0x03,
                            0x47, (byte) 0xE1, (byte) 0xE2,0x1E,0x69,0x24,0x6A,0x74,0x67, (byte) 0xCA, (byte) 0x84,0x15, (byte) 0xA3, (byte) 0x98,0x2E,0x19,0x46,0x7B,0x03, (byte) 0x93,
                            0x20, (byte) 0xE2, (byte) 0x97, (byte) 0xAC, (byte) 0xEA,0x10,0x3E,0x78,0x6E, (byte) 0xE8, (byte) 0xD7,0x7D, (byte) 0xFF, (byte) 0xD8, (byte) 0xDE, (byte) 0xFB,
                            (byte) 0xB8,0x07, (byte) 0xCE, (byte) 0xF1,0x6E,0x7F, (byte) 0xBD,0x40,0x32,0x06, (byte) 0xF2, (byte) 0xF8,
                            0x24,0x28,0x25, (byte) 0xCF,0x7E,0x79,0x40,0x31,0x52,0x76,0x67, (byte) 0xFA, (byte) 0x81, (byte) 0x82, (byte) 0xA7,0x03};

[Mttrinh]

Hi,

according to screen below

Not sure what you mean, did you forget to upload the image?

[matej1410]

I had a problem with uploading. Sorry about that.

[matej1410]

I'm still stuck in "Provisioning Public Key" . Can someone help me? I will be very gratefull :-) 

When I'm sending Invitation, device responds with capabilities. After that  sending "Provision Start" and now I dont know what to do next? 
Where can I find Public Key to send?

Is there any well known Public Key for excercises purpose? or should I create my own every time when I m provisioning new node?

[Aleksander Nowakowski]

Have a look at this line:

https://github.com/NordicSemiconductor/Android-nRF-Mesh-Library/blob/4b29037c92cd83a75f0a1ce65c7be528e99c5142/android-nrf-mesh-library/meshprovisioner/src/main/java/no/nordicsemi/android/meshprovisioner/provisionerstates/UnprovisionedMeshNode.java#L132

The public key of a device should be obtain Out of Band (oob). Either be getting it from the internet, reading QR code, etc. Then, pass it here before starting provisioning.