Emulation is legal. Circumventing encryption on software you don’t own is not.
If you want, I can:
Here are some key features:
The Vita3K development team is ambitious. In recent nightly builds, there have been experimental features to for specific, fully decrypted games. However, this is unstable. Zrif Key Vita3k
or "extras" tab to find the alphanumeric string (often starting with "KO5"). How to Use zRIF in Vita3K Emulation is legal