Proposal for `Account Storage` Service

[ipr0310]

@ohager @TheTimeWalker As Expo SecureStore is using the device's keychain, it is a Key/Value DB.

It does not provide a method of knowing all keys which are saved on the device. The app must keep track of all accounts the user is importing/creating

Proposal: The app should be able to identify all the account the user has created or imported through SQLite

We can create the following table called Account:

account (string) (unique)	type (mnemonic or watch-only)	timestamp (UNIX)
8629824288351884182	mnemonic	1707793722
9613514220065540170	watch-only	1707793722
8413162550188879456	mnemonic	1707793722

Any feedback is appreciated

[ipr0310]

• mnemonic accounts allows the user to execute transactions The account ID is the key we will use on the SecureStore service: Example:

  
  import * as SecureStore from 'expo-secure-store';

SecureStore.getItemAsync("8629824288351884182");

// In order to be able to execute transactions // The user also must pass through the authentication, either PIN or Biometric

- `watch-only` accounts allows the user to only observe/supervise the account, useful for cold wallets
Not possible to execute transactions

[ipr0310]

Example This table will allow the app to detect which accounts are set in the wallet:

[ipr0310]

Update:

1. Map accounts with JSON structure
2. Key will be the account public key