Google wants Android phones to have a Secure Enclave chip like iPhones. Its OpenTitan project aims to help design an open source one.
OpenTitan is loosely based on a proprietary root-of-trust chip that Google uses in its Pixel 3 and 4 phones. But OpenTitan is its own chip architecture and extensive set of schematics developed by engineers at lowRISC, along with partners at ETH Zurich, G+D Mobile Security, Nuvoton Technology, Western Digital, and, of course, Google.
The consortium will use community feedback and contributions to develop and improve the industry-grade chip design, while lowRISC will manage the project and keep suggestions and proposed changes from going live haphazardly.
You can view the OpenTitan Github repo here, but it’s not fully fleshed out yet.