Add Stax layouts for generating SSS shares

[aido]

Currently a work in progress while awaiting nbgl_useCaseKeypadDigits() use case (see LedgerHQ/ledger-secure-sdk#601).

[aido]

Hi,

LedgerHQ/speculos#508 is becoming a blocker for this PR.

[aido]

This PR depends on the fix for this issue LedgerHQ/ledger-secure-sdk#761 being available in the SDK.

[aido]

Hi,

The latest push to this PR adds a port of the app to Flex. This app now works on all Ledger devices.
Testing on a physical Flex device looks good.

Note

Some of the automated checks are failing due to the issue described here: LedgerHQ/ledger-secure-sdk#786

[tdejoigny-ledger]

@aido ty for your PR. could you please add the flex target in the CI (test, build & rule enforcer) ?
If NanoS is not building we will not be able to deploy it. So my suggestion here:

• remove the nanoS from the CI+toml and we will not deployed anymore the NanoS version (we will keep the previous version)
• OR fix the issue with the build issue with NanoS

[aido]

Hi @tdejoigny-ledger ,

Thanks for having a look at this.

could you please add the flex target in the CI (test, build & rule enforcer) ?

Will do.

fix the issue with the build issue with NanoS

As mentioned above the source of the issue is described here LedgerHQ/ledger-secure-sdk#786. Assuming my analysis is correct should I create a PR on ledger-secure-sdk to fix this?

[tdejoigny-ledger]

Hi @tdejoigny-ledger ,

Thanks for having a look at this.

could you please add the flex target in the CI (test, build & rule enforcer) ?

Will do.

fix the issue with the build issue with NanoS

As mentioned above the source of the issue is described here LedgerHQ/ledger-secure-sdk#786. Assuming my analysis is correct should I create a PR on ledger-secure-sdk to fix this?

yes could be great 👍

[aido]

Hi @tdejoigny-ledger,

could you please add the flex target in the CI (test, build & rule enforcer) ?

$${\color{green}✓}$$ Done

fix the issue with the build issue with NanoS

$${\color{green}✓}$$ Done. Fix also now merged into LedgerHQ/ledger-secure-sdk#808

Note

One of the failing automated checks is fixed by this PR LedgerHQ/ledger-app-database#274

[tdejoigny-ledger]

@aido still some error in the CI.
If I'm not wrong we already updated the SDK with the change you asked (disable USB flag)

[aido]

Hi @tdejoigny-ledger,

The latest Ledger app builder container uses Nano S SDK version lns-2.1.0-v22.1. This version is from last July and does not include the above mentioned fixes to the SDK. Those fixes were cherry picked into the latest API_LEVEL_LNS but were not tagged with a version to be included in the Ledger app builder container.

[tdejoigny-ledger]

Hi @tdejoigny-ledger,

The latest Ledger app builder container uses Nano S SDK version lns-2.1.0-v22.1. This version is from last July and does not include the above mentioned fixes to the SDK. Those fixes were cherry picked into the latest API_LEVEL_LNS but were not tagged with a version to be included in the Ledger app builder container.

my bad: I forgot to tag the LNS branch for NanoS before publishing the new app builder

[tdejoigny-ledger]

let's wait the new app builder version