Ahh PCI compliance :)<p>I think Burntsushi gave a good answer here. We want these features! It&#x27;s a matter of getting the requirements correct, and then helping build them. We have some of this stuff already, and are working on what Firefox needs, which is very similar, but would love for anyone who has a stake in this to help tell us about what they need, specifically. If that&#x27;s you and or your org, starting a thread on <a href="http:&#x2F;&#x2F;internals.rust-lang.org&#x2F;" rel="nofollow">http:&#x2F;&#x2F;internals.rust-lang.org&#x2F;</a> would be quite helpful.