What's the difference between these two methods of creating an account via Parity?

Question

In Parity, as explained in this tutorial for setting up a PoA, there are three methods for creating Ethereum accounts: Via RPC calls, via the UI, and via parity account new.

The UI obviously seems to wrapping the RPC calls, so we can discard the UI for the sake of this discussion. I've observed the following:

• The RPC calls will deterministically create an ICAP address. I'm specifically running parity_newAccountFromPhrase and I seed this with a random phrase from parity parity_generateSecretPhrase.

• The command line option parity account new does not seem to give me an ICAP address or the possibility of getting a recovery phrase.

So what's the rationale behind this? Is there a way for me to get a non-ICAP compatible address from the RPC calls? Is there a way for me to get a recovery phrase from the command line option?

I'm specifically asking with regard to private PoA chains.

EDIT: ICAP, not ICAN.

Answer 1

Only accounts generated from phrase result in an ICAP-compatible address, namely parity_newAccountFromPhrase.

Is there a way for me to get a non-ICAP compatible address from the RPC calls?

All other methods (CLI, RPC) do not yield such addresses. For RPC that is:

• personal_newAccount
• parity_newAccountFromSecret
• parity_newAccountFromWallet

Is there a way for me to get a recovery phrase from the command line option?

No, but there is a rust crate: https://github.com/paritytech/wordlist