Ivy encrypt messages

![shotgun](http://paynereactor.com/wp-content/uploads/2014/02/replica_sawed_off_dbl_shotgun_1.jpg)

Missed the `@`. Anyway: you definitely *should know why*. (And yes, it's imho more CS-style to use fat arrow on queue.peek and use `@encryptionKey` in the call, but that's up to you.