ZMQ Curve
## Note
I realize you're still working on ZMQ Curve shared keys (but I love it and want to test it..., as a prep for integration)

### Description

Can you give me a quick config file slice for what you're thinking (I'm trying something like this)

{
	"url": "tcp://10.1.3.161:6000",
	"topic": "tube",
	"sharedEncryptionKey": "MySharedKey"
}

and

"shareRelay": {
	"publishUrl": "tcp://0.0.0.0:6000",
	"sharedEncryptionKey": "MySharedKey"
},

also, it appears externalStratum is not use ??? (maybe I'm looking at it wrong).


Also, I think I need to have libcurve on linux.

Any thoughts would be appreciated.

Thanks in advance, and sorry to be peeking over your shoulder on dev... it's exciting.

