Sign and broadcast generic transactions via scanning a QR code

[ManuGowda]

Description

Lisk Mobile users must be able to scan a QR code of a raw or partially signed transaction, view transaction summary and then sign and broadcast the transaction.

Motivation

• Generic transaction signing
• Enables users to sign and send any custom transactions

Additional Information

These transactions can be created using community managed tools.

For example a delegate can create a form that accepts sender public key and produces a vote transaction to him/herself. Users can enter their public key, and scan the QR code and send the tx. Since Lisk Service will create a tx pooling feature, user should be able to scan QR code of a partially signed mutlsig tx and sign it, then send the tx to Lisk Service for further signature collection.