Open source silicon root of trust.

OpenTitan® is the world’s most active and widely adopted open-source silicon project, containing commercial-grade IP blocks and security certified hardware Root of Trust designs.

OpenTitan chip in production silicon
OpenTitan silicon · shipping in Chromebooks

World's Most Active Open Silicon Project

01 / By the numbers
33,300+
Total commits (Ibex + OpenTitan)
40,000+
Test runs in nightly regressions (run multiple times per week)
300+
Contributors
8,400+
GitHub issues (Ibex + OpenTitan)
5,700+
GitHub stars (Ibex + OpenTitan)
446,000+
Lines of SystemVerilog (Digital Design and Verification)

OpenTitan Benefits

02 / Benefits
  1. 01

    Proven Quality

    OpenTitan is built upon best practices in Open Silicon Development and proven in production silicon. It is supported by automated Continuous Integration and validation tools and principles developed over years of collaborative working.

  2. 02

    Collaborative governance

    OpenTitan benefits from collaborative governance from leading not-for-profit, academic, and commercial organizations committed to its development and expansion. It is stewarded by lowRISC, a not-for-profit organisation created specifically to develop and maintain open source silicon designs and tools for the long term.

  3. 03

    Open source licensing

    OpenTitan is a Permissively Licensed (Apache 2.0) open source project, moving the whole industry forward with flexible, accessible and effective systems and tools. The designs are available to everyone, whether or not they choose to join as members.

  4. 04

    Security through transparency

    As an open source project, OpenTitan enables the larger community to proactively audit, evaluate, and improve the security properties of the design.

  5. 05

    Vendor- and platform-agnostic

    OpenTitan is not proprietary to a specific vendor or platform. It is used in a wide variety of applications by both project members and third-parties, and its IP is reused in other open-source projects.

  6. 06

    Designed for Standards Compliance

    OpenTitan is designed to support compliance and security certification.

    US Government - FIPS + CC, NIST, FIPS 140-3

    European - Common Criteria EAL 4+, PP-0084, AVA_VAN.5

Post-quantum cryptography

OpenTitan Post Quantum Cryptography

Get involved

OpenTitan Quick Start Guide