Alyssa Milburn

@noopwafel

dorky hacking stuff and ⚡glitches / 🏳️‍🌈 \ she/her / loves people more than tech \ PhD / breaks things \ collects NDAs and lengthy embargoes 😑

The Netherlands
noopwafel.net
Vrijeme pridruživanja: studeni 2016.

Medijski sadržaj

  1. 24. sij

    My first use of the laser cutter: PCB stencil for the HorrorScope. The edges are a bit melted so it's not smooth on the top side - and I didn't flip the SVG - but it looks usable otherwise. (The damage at the top is due to power level testing on a nearby area).

    1 proslijeđeni tweet 13 korisnika označava da im se sviđa
  2. 13. sij

    Couldn't find any existing code to communicate with it, so found the docs for the SCPI commands and produced some good-enough™ Python to control it remotely from Linux. Pushed it to in case it helps anyone. Look, uh.. magical no-hands stuff?

    5 korisnika označava da im se sviđa
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  3. 11. sij

    My ffmpeg rewrite/port of this demuxer+decoder seem to be working. The code is a huge mess, but plenty of time to tidy that up later. :) Here's a few small clips from mid-90s CD-ROM games which used it. Can anyone work out (or guess) which format/codec it is?

    7 replies 14 korisnika označava da im se sviđa
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  4. 8. sij

    Now we have, uh, graphics? It's meant to be black, right? There are six threads running and they're doing, uh, stuff, so .. maybe it's working?

    1 reply 3 korisnika označavaju da im se sviđa
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  5. 7. sij

    Updated my 2011-era ffmpeg patch adding support for the CDToons codec, and finally submitted it. It's a QuickTime codec used in many old Brøderbund games and uses *sprites*, which I guess can be size-efficient *and* lossless. I mean, all your source material is 8bpp, right?

    7 proslijeđenih tweetova 43 korisnika označavaju da im se sviđa
  6. 4. sij

    Finally found an hour to learn enough nmigen to make something work (decimal counter with 7 segment pmod) on 's amazing ECP5 Pergola board. Yay! Comparing with the icebreaker nmigen examples, my code is messier but actually not too bad 🎉

    8 proslijeđenih tweetova 65 korisnika označava da im se sviđa
  7. 31. pro 2019.

    Congratulations to all on surviving 2019, and pleasantly surprised to find myself looking forward to 2020; am warm and cozy at , watching the fireworks with friends and Blåhaj.

    1 proslijeđeni tweet 19 korisnika označava da im se sviđa
  8. 27. pro 2019.

    Come by the Hardware Slacking assembly at and get valuable voltage glitching experience without the hard work! We'll also be running some slightly more serious mini-workshops. We finally pushed the source for our terrible (but super fun) glitcher to

    13 proslijeđenih tweetova 44 korisnika označavaju da im se sviđa
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  9. 12. lis 2019.

    "I don't need to go to the hassle of a PCB to prototype these chips, I'll just buy a few and solder them on protoboard", said foolish me of the past, apparently. Dead bug prototyping this sounds like fun, right? I'm sure the power pad is just there for decorative purposes!

    4 proslijeđena tweeta 28 korisnika označava da im se sviđa
  10. 8. ruj 2019.

    It's a quiet Sunday, mostly recovered from being sick last week, trying to relax a bit. Today, that apparently results in reading datasheets and wondering how long gameport I/O ports will continue to be special-cased by x86 chipsets. You can route them to eSPI too!

    2 proslijeđena tweeta 6 korisnika označava da im se sviđa
  11. 8. ruj 2019.
    Odgovor korisnicima

    There's not much else to go in a photo. You get the adapter, a few cables and some unhelpful paper docs. It is kind of expensive, so I wouldn't suggest anyone buy one unless they are really in a rush :)

    1 korisnik označava da mu se sviđa
  12. 6. kol 2019.

    Albert Spruyt and I have been slowly bashing at cheap voltage glitcher prototypes. One of the simpler ones - an FPGA and a cheap opamp driving both inputs of an analog switch - seems promising. Tens of attempts per second means fast results - look at all the beautiful glitches!

    2 proslijeđena tweeta 34 korisnika označavaju da im se sviđa
  13. 12. srp 2019.

    Doing some power analysis to steal AES keys with the HorrorScope, during the final talk of the week - about side-channel attacks and countermeasures - at the SILM summer school. Also got almost all of the key on Wednesday during 's workshop on cache attacks, was fun.

    1 reply 2 proslijeđena tweeta 8 korisnika označava da im se sviđa
  14. 11. srp 2019.
    Odgovor korisnicima i sljedećem broju korisnika:

    Everything there looked quite amazing. This is what I ended up (mostly) eating; I'm surprised that any of us still had any appetite for dinner!

    1 reply 1 proslijeđeni tweet 8 korisnika označava da im se sviđa
  15. 21. ožu 2019.

    Successfully soldered badge addon despite having had way too much caffeine beforehand and having super shaky hands. Soldered connector onto badge backwards 😂 so many thanks to super friendly people who helped me desolder it again

    5 korisnika označava da im se sviđa
  16. 20. ožu 2019.

    Improved the security of my badge. Not before it managed to do a firmware update, though.

    1 reply 1 proslijeđeni tweet 21 korisnik označava da mu se sviđa
  17. 17. ožu 2019.

    I don't think even the bear is convinced by this slide. So it's not quite this easy to make power cuts in the "real world".. but there's plenty of fun to be had with cutting traces and hacking at vias and hot glue everywhere!

    11 korisnika označava da im se sviđa
  18. 3. velj 2019.

    After a *lot* of time wasted trying to work out why we couldn't flash a working bitstream onto a Xilinx dev board, discovered that a DIP switch was broken (?!) and the FPGA wasn't trying to read the flash at all. Works great after my "fix". Agh.

    2 proslijeđena tweeta 38 korisnika označava da im se sviđa
  19. 22. pro 2018.

    Want to break crypto (the AES kind) on the cheapiest, with just ~5eur of equipment? HW side channels are easy and fun! Albert Spruyt and I are doing a short workshop at - see . Looking forward to seeing talks and people at the congress!

    15 replies 100 proslijeđenih tweetova 278 korisnika označava da im se sviđa
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  20. 10. stu 2018.

    Got my first custom-designed PCBs yesterday (from allpcb, <1wk from order to delivery :o). There are many things I want to improve but we soldered a (very) minimal set of components onto it last night and it seems to *mostly* work. Despite that solder bridge. Victory! \o/

    23 korisnika označavaju da im se sviđa

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