#opentitan — Public Fediverse posts
Live and recent posts from across the Fediverse tagged #opentitan, aggregated by home.social.
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🚢 "OpenTitan Shipping" — a riveting saga about #Google finally deploying yet another open-source project that nobody asked for. Kudos to the team for turning "coming soon" into "finally arrived," only about 5 years later. 🕒🎉
https://opensource.googleblog.com/2026/03/opentitan-shipping-in-production.html #OpenTitan #OpenSource #TechNews #ShippingSaga #FinallyArrived #HackerNews #ngated -
Big milestone for the #OpenTitan hardware root of trust project: the open-silicon design is now shipping in commercial Chromebooks, on-shelves now thanks to a silicon implementation by Nuvoton.
#Technology #News #Hackster #Security #OpenHardware #OpenSilicon
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Google OpenTitan open source security chip is now shipping inside Chromebooks
https://fed.brid.gy/r/https://nerds.xyz/2026/03/google-opentitan/
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Chromebooks are about to get a lot more secure. Google has begun production of the first commercially available open-source security chip designed to provide transparency & trust in hardware security.
#google #chromebook #opentitan #opensource #security
https://www.androidpolice.com/google-opentitan-rot-chromebook/ -
FPGA-based CI is also run on every repository change request to the OpenTitan repository.
It takes a lot of maintenance to keep the stack of FPGAs working.
This is expensive hardware, the latest ones cost up to $10k for each board.
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James Wainwright is now presenting "Open source all the way down: developing firmware in parallel with open silicon".
In the context of the OpenTitan open source root-of-trust project, the hardware, its tests and firmware are all developed in lockstep in a monorepo.
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Exciting milestone for the #OpenTitan project and for open-source silicon! We're proud to be able to work with lowRISC CIC and their partners to contribute to this project!
https://www.eetimes.com/ushering-in-a-new-era-for-open-source-silicon-development/ -
CW: research review
P. Nasal and S. Mangard, "SCRAMBLE-CFI: Mitigating Fault-Induced Control-Flow Attacks on OpenTitan"¹
Secure elements physically exposed to adversaries are frequently targeted by fault attacks. These attacks can be utilized to hijack the control-flow of software allowing the attacker to bypass security measures, extract sensitive data, or gain full code execution. In this paper, we systematically analyze the threat vector of fault-induced control-flow manipulations on the open-source OpenTitan secure element. Our thorough analysis reveals that current countermeasures of this chip either induce large area overheads or still cannot prevent the attacker from exploiting the identified threats. In this context, we introduce SCRAMBLE-CFI, an encryption-based control-flow integrity scheme utilizing existing hardware features of OpenTitan. SCRAMBLE-CFI confines, with minimal hardware overhead, the impact of fault-induced control-flow attacks by encrypting each function with a different encryption tweak at load-time. At runtime, code only can be successfully decrypted when the correct decryption tweak is active. We open-source our hardware changes and release our LLVM toolchain automatically protecting programs. Our analysis shows that SCRAMBLE-CFI complementarily enhances security guarantees of OpenTitan with a negligible hardware overhead of less than 3.97 % and a runtime overhead of 7.02 % for the Embench-IoT benchmarks.
#ResearchPapers #arXiv #OpenTitan #FaultInducedControlFlowAttacks #AttackMitigation #IoT
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¹ https://arxiv.org/abs/2303.03711 -
#OpenTitan: The first open source reference design for #root of #trust #chips
Website
https://opentitan.org/
