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A budget laser fault-injection setup bypasses RP2350 secure boot

courk.cc 36 min read Editor score 7/10

The investigation covers an infrared laser-injection platform, pulse synchronization, and attack scenarios including instruction skips and register corruption. Its methods and constraints are useful for engineers assessing hardware secure-boot defenses.

What

A custom laser fault-injection platform bypassed RP2350 Secure Boot with a single laser-induced fault.

How

The RP2350 boot ROM uses hardware features including a Redundancy Co-Processor; the challenge target was a secured Pico 2.

Why it matters

The result shows why engineers assessing secure boot must consider physical fault injection as well as software defenses.

Read on courk.cc → Hacker News · 15 comments

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