414: Puff, the Magically Secure Dragon
Embedded26 Touko 2022

414: Puff, the Magically Secure Dragon

Laura Abbott of Oxide Computing spoke with us about a silicon bug in the ROM of the NXP LPC55, affecting the TrustZone.

More information about the two issues are in the Oxide blog:

More about LPC55S6x and their LPC55Sxx Secure Boot

Ghidra is a software reverse engineering framework… and it is one of the NSA's github repositories.

Laura will also be speaking about this at Hardwear.io in early June 2022 in Santa Clara.

Twitter handles: @hardwear_io, @oxidecomputer, @openlabbott,

The vulnerability was filed with NIST: NVD - CVE-2021-31532

Transcript

Jaksot(568)

401: Oil and Water

401: Oil and Water

Miro Samek joins us to discuss designing systems, state machines, and teaching courses. Miro's company is Quantum Leaps (state-machine.com) which provides commercial licensing for QP Real-Time Embedde...

4 Helmi 20221h 9min

400: A Really Long Time

400: A Really Long Time

Christopher and Elecia celebrate their 400th episode by discussing what has (and hasn't) changed in embedded systems over the last 9 years

28 Tammi 20221h 5min

399: Hey, What's Going On?

399: Hey, What's Going On?

Jen Costillo joined us to talk about voice acting, reverse engineering, podcasting, and dance. Jen's podcast is the Unnamed Reverse Engineering Podcast, found in all your usual podcast places. Jen and...

21 Tammi 20221h 11min

398: Clocks Get Into Everything

398: Clocks Get Into Everything

Tom Anderson explains radio frequency electronics (RF). Elecia and Christopher try to keep up. We also took a detour into bass guitar electronics. One confusing jargon part is that radio power (in dBm...

14 Tammi 20221h 10min

290: Rule of Thumbs (Repeat)

290: Rule of Thumbs (Repeat)

We spoke with Phillip Johnston (@mbeddedartistry) of Embedded Artistry about consulting, writing, and learning. In the Embedded Artistry welcome page, there is a list of Phillip's favorite articles as...

7 Tammi 20221h 13min

397: Owl

397: Owl

Chris and Elecia ring in the new year with a discussion of projects, hobbies, origami, DMA, music, and the new-and-improved Embedded.fm newsletter... Pepto Bismol can be converted to metal bismuth (Yo...

31 Joulu 20211h 1min

293: Skateboard Tricks (Repeat)

293: Skateboard Tricks (Repeat)

Limor Fried of Adafruit spoke with us about engineering, education, and business. Some new boards we talked about include the PyGamer and PyBadge (which also has a lower cost version). TinyUSB, an op...

23 Joulu 202143min

396: Untangle the Mess

396: Untangle the Mess

Uri Shaked shows us Wokwi, his board and processor simulator. We checked out Arduino code in GDB and then looked at his simulator for the Cortex-M0 Raspberry Pi Pico. First, you should totally look ...

17 Joulu 20211h 10min

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