Wallet Paper Backup Design

Initiating a Paper Backup

The wallet will nag the user to create a paper backup for each HD wallet until the user has completed the create paper backup flow. Note the warning to create a backup:

We like to nag as creating a paper backup reduces the probability of lost users funds due to loss of passphrase
User will be able to restore a Spacemesh wallet (an HD wallet) from the 12 words mnemonic paper backup in the case he lost or forgot his / her wallet passphrase or in case the wallet data file is no longer accessible to the wallet app
In addition, user may initiate a paper backup at any time, by clicking on a Create paper backup command from its wallet settings.

Step 1: Paper Backup

The wallet presents to the user its standard HD Wallet 12 words mnemonic
User is instructed to write the words down in the same order and click a button to continue

Step 1 Mock

Step 2: Paper Backup Verification

The goal of this step is to ensure that the user actually wrote down the words and didn't just click-through the interaction...
User is presented with 8 words and is instructed to drag the first 4 words that he or she wrote down in step 1 into a box
Only 4 words from the user 12 words mnemonic phrase are displayed in the words list together with 4 other random words
User is prompted to click done button after dragging the 4 words to the box
The app should communicate to the user if the code was confirmed in case he dragged the first 4 words and in the write order into the box, or that it wasn't confirmed otherwise
The app should persist whether the HD wallet 12 words mnemonic was confirmed or not for each HD wallet. In case the 12 words mnemonic wasn't confirmed - the wallet will keep nagging the user to create a paper backup