RFC: Unified signWithAccount across product and legacy accounts

[filvecchiato]

Raised in: #222 · @filvecchiato

Description

signWithAccount accepts any AccountId the User Agent can attempt to sign with and that TrUAPI has returned into this product on this device. It replaces the *WithLegacyAccount variants of raw signing, payload signing and transaction construction.

Motivation

The signing surface is split by key provenance, so a product must know which kind of account it holds before it can pick a method.

Requirements

• Accepts any AccountId the User Agent can attempt to sign with.
• The account must have been returned by TrUAPI into the current product on the current device.
• Covers raw signing, payload signing and transaction construction.

Tasks

• RFC document body
• Implementation — rust-core
• Implementation — hosts
  • dotli
  • Desktop
  • iOS
  • Android
  • host-cli

Note: no RFC drafted yet.