Proposal: Enable BIP39 Passphrase Support for Firefly Wallet

[antonionardella]

Introduction

Firefly Wallet, as a the IOTA wallet should enhance its security and compatibility by implementing BIP39 passphrase support. This feature allows users to use a 24-word mnemonic and add a 25th word for additional seeds.
Feature request for IOTA-SDK dependency.

Feature Description

BIP39 Passphrase Support

Implement the BIP39 passphrase support in Firefly Wallet, enabling users to create, restore, and manage IOTA seeds using a 25-word mnemonic phrase. Users will have the option to add an extra passphrase to their mnemonic, providing enhanced security and the ability to generate multiple independent seeds from a single mnemonic.

Restore Ledger Nano Seeds

Ensure users to fully restore and manage their IOTA seeds using the extended 24-word mnemonic and 25-word as passhprase. Users with Ledger Nano devices should be able to restore the BIP39 passphrase feature without any compatibility issues.

Implementation Plan

• Update Mnemonic Generation: Modify the mnemonic generation process within Firefly Wallet to support 25-word passhprases. Implement the necessary functions to generate, store, and manage these extended mnemonics.
• UI/UX Enhancements: Update the user interface to allow advanced users to input the 25th word passphrase during seed creation or restoration. Provide clear instructions and tooltips to guide users through the process.
• Documentation and Support: Update the official Firefly Wallet documentation to include detailed information about the BIP39 passphrase feature. Provide troubleshooting guides and support resources for users encountering difficulties.

Open Questions

• Advanced User Education: How will Firefly Wallet educate users about the importance of the 25th word passphrase? Consider implementing in-app tooltips, educational pop-ups, or a dedicated knowledge base section.

• Backup and Recovery: What backup and recovery options will be available for users utilizing the 25-word mnemonic? Ensure users can securely back up their extended mnemonics and recover their funds in case of device loss or failure.

Conclusion

By implementing BIP39 passphrase support, Firefly Wallet can provide users with advanced security options and greater control over their IOTA seeds. This feature aligns Firefly with industry standards and enhances the overall user experience, especially for advanced and Ledger Nano users.