Bhargava Chinthirla

Hello, Is there any update on adding this support? I see that `1.5.0` is released, but don't see any APIs for converting back and forth between `Tink` and `java.security.[Public/PrivateKey]Key`.

> what happens if UTF-16 encoding changed from 8.0 to 8.1? This seems to be the key. Here's what `new Entity(String)` would return pre-8.1:  And here's 8.1 and up:...