Adding Testing capabilities with Tendermint via Command Line about plasma-mvp-sidechain

[colin-axner]

Expanding further on plasmacli:

The light client will need to have some sort of key management system in order to sign off on transactions and then broadcast them. Cosmos-SDK currently uses the go-crypto keybase to manage these keys and maps the name of a key in string to the actual key. This is nice UI as users simply need to give their addresses names and specify those names via flags to do any commands with them.

Since we need to use geth-crypto to stay compatible with Ethereum we will need to use a different type of key management system. Go-Ethereum has a keystore which implements their BackEnd interface which is described in the docs for their accounts package. The keystore can generate new account keys and stores the accounts which can then sign off on transactions. I believe the find function can retrieve all the info necessary to sign off on transaction by providing the account address (An account struct is simply the address with an optional URL field).

We can use a custom context similar to this so the account address to sign a transaction for is passed in via flags corresponding to the sendtx command. Is there any way we could also add in the UI feature of referencing certain addresses by a string rather than the full address itself?

If I'm not mistaken or missing something, I believe this construction can work. I'm still working out the details for storing/accessing the keystore.

Thoughts?

[AdityaSripal]

Current idea: Implement keybase interface in go-crypto to handle Ethereum sigs. Most methods can be taken from standard implementation, except for methods that are signature-scheme specific.

[AdityaSripal]

Closed in #38