Store secret keys in the OS keychain.

[NodeGuy]

Apologies if this has already been implemented/considered.

@jessysaurusrex suggested that we store secret keys in the OS keychain (using, e.g., https://github.com/zalando/go-keyring).

Given that the OS already prompts the user for a password to unlock the keychain, does this mean we don't need to send a password to the SDK from the client?

@ebuchman: Thoughts?

[mappum]

I like this idea 👍

Given that the OS already prompts the user for a password to unlock the keychain, does this mean we don't need to send a password to the SDK from the client?

We would still need some way for the LCD to authenticate Voyager so other processes can't get it to sign malicious transactions, so the Electron<->LCD connection would stay the same.

[jackzampolin]

If we are going to implement this its going to be part of a much more thorough going refactor of our wallet functionality. Platform specific wallets are a bit of a ways out. Going to close this as stale. Please reopen if you feel otherwise.