Shielded Support for Ledger Hardware Wallets (NanoS+, NanoX)

[aquietinvestor]

Please see below from ZCG’s Oct 2 meeting minutes. Pasting here to ensure all recent information is contained in this thread.

@ZcashFoundation

Ledger

• Jason posted on the forum a statement from ZCG that summarizes where things stand with Ledger so that the community is up to date.
• Brian said that he understood and agreed with Jason’s post. He also said that he was unsure about the idea of reaching out to other organizations and said he saw that Zooko responded to that thread but is not sure if any organizations can take over Hanh’s work, specifically. Brian said moving forward with Zondax would be the most efficient way for Ledger to be satisfied with this proposal. Lastly, he said he was disappointed that it did not work out with Hanh, as the ZF community trusted and supported Hanh’s past work and wished Ledger’s blockchain-based organization requirement was clearer upfront.
• Jason said he would like to have a follow-up call with Ledger, Jack, and the committee soon to inform Ledger that ZCG will not be moving forward with Hahn, and to let them know what ZCG’s plans are. He also said that the committee should meet with Zondax to understand whether they are willing to use some of Hanh’s code, which has been audited by Taylor. Jason also said that, apart from engaging with Zondax, the committee should actively reach out to companies like Equilibrium and Chainsafe to see if they’re able to take over this project and support it long-term. All options should be explored so we can deliver this app to the community in a timely manner.
• Jack reminded the committee that Zondax has a functioning Ledger app that supports transparent and Sapling transactions, and circled back to why Zondax had proposed productionizing their fork of the Zecwallet Lite wallet, which was because there needed to be a compatible wallet for Ledger to test the new app being submitted but attempts to partner with both Zecwallet and Ywallet had been unsuccessful.
• Jason asked if Nighthawk could be used as a wallet, and Jack replied that it could not be an option because NH is a mobile wallet but we need a desktop wallet for Ledger to test with.
• Jack emphasized that the most significant win from a Leger integration would be support for shielded ZEC in Ledger Live, and for the committee to be very aware of all the requirements and the integration’s limitations, such as the risk that it may not be possible to add support for Orchard into Ledger Live due to licensing conflicts.
• Jason said that he has a proposal inspired by a conversation he had with Dan:
  • Because ZF has a history of working with Zondax and funding previous Ledger work, would ZF be willing to serve as a “project manager” for this project and manage the relationship since they are better suited than ZCG, and then split the cost 50/50 with ZCG? One reason is that ZCG has already funded Hanh’s work, but Ledger may not utilize his code.
    • Jack replied that ZF has already worked with and funded all of Zondax’s work to date, which resulted in a Ledger app that could not be submitted because it had no wallet integration.
    • Jason gave several reasons why ZCG chose to go with Hanh instead of Zondax; however, no one anticipated Ledger wouldn’t accept Hanh’s app submission.
    • Brian agreed with Jason and added that whatever needed to be done to move this project forward, he favors it because the community wants and needs hardware wallet support.
• Jack suggested that ZCG’s best next step is to meet with Zondax and discuss the situation with them. He also recommended that expectations and the scope of the project be crystal clear, as there has been a lot of miscommunication and misunderstanding to date. Once those expectations are made, Jack suggested discussing the proposed plan with Ledger and ensuring they agree.
• GGuy proposed that ZCG send a follow-up email to Ledger with a status update and await Ledger’s response before scheduling a call with them. The committee agreed.
• Jason asked Jack to contact Zondax to set up a meeting with ZCG and ZF. Jack said he would start an email thread to figure out a time that works for all.
• Jack reemphasized the benefits of Ledger Live integration and the importance of backward compatibility to ensure that people who currently hold ZEC on a Ledger device don’t lose their funds. He also reminded the committee that Ledger will require an audit by one of their two approved audit partners before they will accept an app submission.
• Due to Hanh’s recent post, Dan reminded everyone to ensure Hanh knows his part in this project is officially over. Jason said there is no harm in Hanh trying to find other entities to sponsor him, but that it also does not stop the committee from moving forward with the takeaways from tonight’s meeting. All available options should be explored.