Support message signing with Ledger hardware wallets

[kyranjamie]

The message signing feature, just released, hasn't been implemented for Ledger yet.

A message signing flow should be created, following steps similar to transaction signing

[markmhendrickson]

@landitus Will this require significant design changes to support, or is the flow similar to one we've already designed for Ledger?

[landitus]

Seems it will be straightforward as we can use the Tx signing flow as a blueprint. It's basically the same UI.

We could go straight to implementation without mocks if needed, but I would still take some time to add this new flow to the wallet flow maps and check if something tricky appears.

[landitus]

I've mocked the happy path, and indeed we are going to use the same UX/UI as the TX signing with ledger.

• I assumed we need a confirmation screen where the user will confirm on Ledger (just as the TX signing)
• There are some CTA and Heading copy updates to adapt it to Ledger and that's mostly it!

Links

• Figma
• Prototype
• Flows

CleanShot.2022-06-24.at.15.21.07.mp4

[kyranjamie]

@markmhx Note that the Ledger only supports text-based message signing. We will need to work with Zondax to implement the structured data signing feature.