nsdata - How to combine and split Data in swift

Question

I am working on sending encrypted messages between two or more devices on swift. I have 3 constants of type Data: ephemeralPublicKey, ciphertext and signature I need to combine all 3 of them into 1 data, something like:

let data: Data = ephemeralPublicKey + ciphertext + signature

Then transmit this entire block of data to another device. On the new device I have to split it again back to ephemeralPublicKey, ciphertext and signature, so that I can use them to decrypt the message. I am struggling from a couple of days with this and I still don't have idea how to do it.

Answer 1

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