# 041 - What did you fail at this week?

- Show: [Unnamed Reverse Engineering Podcast](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast)
- Published: 2020-11-07
- Length: 1h 31m
- Page: https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week
- Listen: https://unnamedre.com/episode/41

## Summary

Samy Kamkar, co-founder of OpenPath Security, details his NAT Slipstreaming research, a technique that bypasses router protections to expose internal ports by exploiting SIP Application Layer Gateways and IP fragmentation. He discusses his broader security research, including car unlock attacks using NXP chips and creating iridescent chocolate via 3D printing on diffraction gratings. Kamkar also highlights his open-source tools, such as Ghidra for reverse engineering and his custom 'Samytools' suite, while emphasizing a philosophy of learning through failure and exploring non-obvious system inputs like temperature and electromagnetic signals.

## Chapters

- [0:27](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=27) Introduction: Samy Kamkar and OpenPath Security
- [2:33](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=153) NAT Slipstreaming: Bypassing Routers via SIP and IP Fragmentation
- [31:26](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=1886) Reverse Engineering Router Firmware with Binwalk and Ghidra
- [39:45](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=2385) Car Unlock Attacks and NXP Wireless Chips
- [44:30](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=2670) Iridescent Chocolate: 3D Printing on Diffraction Gratings
- [53:41](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=3221) Learning Methodology: Fravia, Open Source, and Failure
- [1:11:22](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=4282) Samytools: Custom CLI Utilities for Binary Analysis
- [1:16:33](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=4593) Hardware Tools: Rigol, Saleae, and Bantam Tools
- [1:20:12](https://hardwarepodcasts.com/podcast/unnamed-reverse-engineering-podcast/2020-11-07-041-what-did-you-fail-at-this-week#t=4812) High Energy Projects: Sputtering, Cloud Chambers, and Single Event Upsets

## Topics

- [Security & privacy](https://hardwarepodcasts.com/topic/security-and-privacy)
- [Debugging & failure analysis](https://hardwarepodcasts.com/topic/debugging-and-failure-analysis)
- [Embedded firmware](https://hardwarepodcasts.com/topic/embedded-firmware)
- [Materials & manufacturing processes](https://hardwarepodcasts.com/topic/materials-and-processes)
- [Chips, FPGAs & semiconductors](https://hardwarepodcasts.com/topic/chips-and-fpgas)

## Most relevant to

early-stage companies

## Mentioned

- OpenPath Security (company)
- NAT Slipstreaming (product)
- Ghidra (tool)
- Binwalk (tool)
- Rigol (tool)
- Saleae (tool)
- Bantam Tools (tool)
- NXP (chip)
- Samytools (product)
- Fravia (other)

## Related episodes from other shows

- [An Interview with Samy Kamkar](https://hardwarepodcasts.com/podcast/the-amp-hour/2016-07-22-an-interview-with-samy-kamkar) (The Amp Hour)
- [An Interview with Dmitry Nedospasov](https://hardwarepodcasts.com/podcast/the-amp-hour/2016-06-17-an-interview-with-dmitry-nedospasov) (The Amp Hour)
- [Ep 193: Found Computers, Internet Over WhatsApp, Two-Factor C64, Shifting Cars, and Self-Shooting Fighter Planes](https://hardwarepodcasts.com/podcast/hackaday-podcast/2022-11-18-ep-193-found-computers-internet-over-whatsapp-two-factor-c64-shifting-cars-and-s) (Hackaday Podcast)
- [#397.8 - An Interview with Chris Gerlinsky](https://hardwarepodcasts.com/podcast/the-amp-hour/2018-06-25-397-8-an-interview-with-chris-gerlinsky) (The Amp Hour)
- [Ep 326: A DIY Pockel Cell, Funny Materials to 3D Print With, and Pwning a Nissan Leaf](https://hardwarepodcasts.com/podcast/hackaday-podcast/2025-06-27-ep-326-a-diy-pockel-cell-funny-materials-to-3d-print-with-and-pwning-a-nissan-le) (Hackaday Podcast)

## Citing this page

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