Trezor Safe 7 support

[karelbilek]

I have Trezor's new Safe 7, I want to use it with Monero.

I don't see it in the menu and when I chose "Safe 5", it doesn't work.

(I know the devices are not generally available yet, so I don't expect this to be done soon, of course; I am just creating this now.)

[selsta]

Can you share the error message you are getting?

[karelbilek]

OK, I will do it later.

In the meantime, I am looking how is trezor support done here. It seems it's using custom C++ code.

https://github.com/monero-project/monero/commits/d32b5bfe18e2f5b979fa8dc3a8966c76159ca722/src/device_trezor/trezor/transport.cpp

Trezor is now adding something called "trezor host protocol", the whole USB communication is encrypted with Noise protocol, and it's mandatory with Trezor Safe 7.

https://trezor.io/guides/trezor-devices/trezor-fundamentals/trezor-host-protocol

https://github.com/trezor/trezor-firmware/blob/m1nd3r/thp-documentation/docs/common/thp/specification.md

It is implemented here in trezor's own python trezorlib.

https://github.com/trezor/trezor-firmware/tree/main/python/src/trezorlib/transport/thp

edit:

and here in there official JS code for frontend

https://github.com/trezor/trezor-suite/blob/develop/packages/connect/src/device/thp/pairing.ts

https://github.com/trezor/trezor-suite/tree/eca5223578b1cc14f43e5efcc2244448dbe750ff/packages/protocol/src/protocol-thp