$strkey has no effect whatsoever. While you may feel like you have some input, unless you can re-generate the same unique string, any static data included has no function. See nonce-generation recommendations in the RFCs for protocols such as HTTP-Digest Authentication.
I've got good news, and I've got bad news: The universe is merely a figment of my imagination. Now are you ready for the bad news?
I've got good news, and I've got bad news:
The universe is merely a figment of my imagination.
Now are you ready for the bad news?