Baochip-1x: A Mostly-Open 22nm Security and Microcontroller Chip for High Assurance Applications
By
sohkamyung
Fresh out the oven, still warm. Top of the tray.
Summary
The article introduces Baochip-1x, a mostly-open, full-custom silicon chip fabricated in TSMC 22nm technology, designed for high assurance applications. It's both a security chip with greater openness than typical security chips and a general-purpose microcontroller positioned between the Raspberry Pi RP2350 and NXP iMXRT1062 in terms of capability. The chip represents the latest development in the Betrusted initiative, which originated from work with Ed Snowden 8 years ago addressing fundamental questions about hardware trustworthiness and whether hardware can be trusted not to betray users in the context of mass surveillance concerns.
Key quotes
· 3 pulledOne of my latest projects is the Baochip-1x, a mostly-open, full-custom silicon chip fabricated in TSMC 22nm, targeted at high assurance applications.
It's a security chip, but far more open than any other security chip; it's also a general purpose microcontroller that fills a gap in between the Raspberry Pi RP2350 (found on the Pi Pico2) and the NXP iMXRT1062 (found on the Teensy 4.1).
It's the latest step in the Betrusted initiative, spurred by work I did with Ed Snowden 8 years ago trying to answer the question of 'can we trust hardware to not betray us?' in the context of mass
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