hardware hacking

Table of Contents

1. hardware hacking

1.1. hcon 2026 hardware ctf

https://github.com/therealdreg/hcon2026hwctf

screen /dev/ttyACM0
picotool info -uf

1.3. Ingeniería inversa de PCBs

https://pcbtracer.com/
Se podría utilizar KiCad también? Se puede actualizar un esquemático desde la PCB

1.4. Ingeniería inversa de silicio

1.4.3. righto

1.4.3.1. Reverse engineering CMOS, illustrated with a vintage Soviet counter chip

PMOS transistors are generally larger than NMOS transistors because they are weaker. Another way to distinguish them is by their connection in circuits. As will be seen below, PMOS transistors in logic gates are connected to power while NMOS transistors are connected to ground.

1.5. Decapado

1.5.3. Identificación de chips

https://www.ti.com/lit/sg/sdyu001ac/sdyu001ac.pdf
6 Appendix C: Logic Part Number Naming Conventions
De momento he visto XG479 para un CD4069BE
También GI9248 para uno de aliexpress

1.6. sd card repair sd card repair

1.7. Andrew bunnie Huang - Hardware hacking

  1. adventures in manufacturing
    small-volume production costs are dominated by setup and assembly, not parts, so that allows you to source less quality units, throw away 20% and get them quicker

  2. the story of chumby
    The end of Chumby, new adventures

    The question whether it would be faster for me to doit myself or to explain it to someone else, wait for them to do it, and possibly have to re-explain it and have them change it. That’s one reason I learned mechanical design […] being able to efficiently and effectively comunicate with a mechanical engineering team using their laguage was important to getting the job done right.

    • Challenges with retail sales
      • Dealing with the merchant buyers
        they think in terms of revenue per shelf space […] tend to look at your product in terms of so many grams of plastic and so many wires. They multiply those numbers by the commodity price of the raw materials to set expectations for how much they’ll pay to have it on the shelf
      • Marging
        Market development funds and other slush money have to be factored in. The shelf cost of a product is about three times your BOM cost
      • Cash flow
        Retailers are notoriously bad at paying on time
        This can be partially mitigated with financial instruments such as factoring insurance
      • Reverse logistics and returns
      • Contracts
  3. hardware hacking
    three copies:
    1. one to tear apart and never put back (fully decaped)
    2. one to probe (functionally decaped)
    3. one to keep relatively pristine: sanity-check whether a certain behavior is due to your probing or just how the hardware behaves

Author: Julian Lopez Carballal

Created: 2026-10-02 vie 23:58