BridgeOS

bridgeOS
DeveloperApple Inc.
Written in
OS family
Working stateCurrent
Source modelClosed, with open-source components
Initial releaseOctober 27, 2016; 8 years ago (2016-10-27)
Update methodFOTA (via Mac running macOS)
Platforms
LicenseProprietary software except for open-source components
Support status
Supported

bridgeOS is an embedded operating system created and developed by Apple Inc. for use exclusively with its hardware. bridgeOS runs on the T series Apple silicon processors and operates devices such as the OLED touchscreen strip called the "Touch Bar", TouchID fingerprint sensor, SSD encryption, and cooling fans.

At boot time, the bootloader executes the bridgeOS kernel, then the bridgeOS kernel passes off to the UEFI firmware.

bridgeOS is based on Apple's watchOS.

References

  1. ^ "10.15.4 Supplemental Update Bricking Small Number of T2 Macs". Mr. Macintosh. April 17, 2020. Retrieved August 18, 2020.
  2. ^ Davidov, Mikhail; Erickson, Jeremy (2019). "Inside The Apple T2" (PDF). blackhat.com.
  3. ^ Misha Davidov (November 20, 2018). "Secure Boot in the Era of the T2". duo.com.
  4. ^ Lianying Zhao; He Shuang; Shengjie Xu; Wei Huang; Rongzhen Cui; Pushkar Bettadpur; David Lie. "A Survey of Hardware Improvements to Secure Program Execution" (PDF). ACM Computing Surveys. 56 (12): 1–37. doi:10.1145/3672392.
  5. ^ Snell, Jason; Macworld | (July 8, 2020). "The switch to Apple silicon: Will the Touch Bar survive?". Macworld. Retrieved August 18, 2020.
  6. ^ "TinkerTool System 7, Reference Manual" (PDF). Marcel Bresink Software-Systeme (MBS). August 22, 2023.
  7. ^ Frazelle, Jessie (February 4, 2020). "Securing the Boot Process: The hardware root of trust". Queue. 17 (6): –60:5–Pages 60:21. doi:10.1145/3380774.3382016. ISSN 1542-7730. Retrieved January 14, 2024.
  8. ^ Pepijn Bruienne (May 2, 2018). "Apple iMac Pro and Secure Storage". duo.com.