Martijn Bogaard

@jmartijnb

Reverse engineers source code by day and reviews binaries by night. TEEs, TAs, bootloaders (Secure Boot), RTOSs, firmware blobs and other low-level sw.

Netherlands
Vrijeme pridruživanja: lipanj 2009.
6 fotografija ili videozapisa Fotografije i videozapisi

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  1. 1. velj

    Hmm, who is the intended audience for a conference countdown timer? The attendees or the speakers to give them a reminder they should work on their presentation instead of doing new research?🤔

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  2. 19. sij

    Best solution seems to be to do a force decompile as call on the instruction and then force the calling convention using __usercall. Doesn't seem to be possible to model everything, but improves the output a lot!

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  3. 19. sij

    Hmm, any (good) ideas how to deal with ARM64 SMC calls in IDA? Only sort-of OK idea I got so far is creating a stub function before the code segment with custom calling convention and patch the SMC calls to BLs to the stub... But that's also quite a pain...

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  4. 16. sij

    The recording of our (with ) fault injection on Secure Boot talk showing a fault simulator and glitching an Android device live on stage at EU '18 got published! Now is your chance to watch it back it if you weren't there!

    7 proslijeđenih tweetova 20 korisnika označava da im se sviđa
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  5. proslijedio/la je Tweet
    10. pro 2019.

    Grab those keyz and learn somebodies darkest secrets! by

    4 proslijeđena tweeta 11 korisnika označava da im se sviđa
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  6. 10. pro 2019.

    I’m really excited I get the chance to talk about my most recent research about Android’s File Based Encryption!

    Grab those keyz and learn somebodies darkest secrets! by
    3 proslijeđena tweeta 11 korisnika označava da im se sviđa
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  7. proslijedio/la je Tweet
    3. pro 2019.

    Today we are hosting a webinar with on Running a fuzzing tool in OP-TEE. If you haven't already, make sure to register here:

    3 proslijeđena tweeta 5 korisnika označava da im se sviđa
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  8. 24. stu 2019.

    Also, the 3rd of December (on Tuesday 1.5 week from now) I will present a webinar hosted by core developer where I will give a high-level overview of how the fuzzer works + answering questions. Register here:

    Join our webinar on the 3rd December when Linaro and  will talk about fuzzing in OP-TEE. For more details and to register, click here:  -TEE
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  9. 24. stu 2019.

    I just published the (raw) patches for my fuzzer which were long, very very long overdue. Also I linked to the latest slides and recording of my presentation from Linaro Connect SAN19. Enjoy!

    1 reply 26 proslijeđenih tweetova 52 korisnika označavaju da im se sviđa
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  10. 27. ruj 2019.

    Ready for demo friday! Demonstrating how to bypass Secure Boot using fault injection and how simulation can help to find the vulnerable locations in source code.

    1 reply 3 proslijeđena tweeta 15 korisnika označava da im se sviđa
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  11. 19. ruj 2019.

    Talking again about fuzzing trusted execution environments. Today at the workshop, coming Tuesday Connect! Have some cool improvements since last March!

    8 proslijeđenih tweetova 17 korisnika označava da im se sviđa
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  12. proslijedio/la je Tweet
    14. kol 2019.

    Can we stop undervaluing humans in security? It seems like there's a huge focus on total automation of provably unsolvable problems. At the end of the day a human writing scripts or interpreting complex results always wins.

    8 proslijeđenih tweetova 54 korisnika označavaju da im se sviđa
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  13. 30. lip 2019.

    With submitting for the first time for a third-party bonus bounty of the Android reward program, I can finally conclude some research I did last Christmas. Keep an eye for CVE-2019-2343 in your Android patch notes 😉

    1 reply 1 proslijeđeni tweet 21 korisnik označava da mu se sviđa
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  14. proslijedio/la je Tweet
    25. lip 2019.

    Getting ready for our talk at ! Hotel room demo prep never gets old...

    2 proslijeđena tweeta 16 korisnika označava da im se sviđa
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  15. proslijedio/la je Tweet
    29. svi 2019.

    TEEs have an increasing role in the of systems. , Senior Security Analyst at , talked about embedded (trusted) operating systems using AFL.

    8 proslijeđenih tweetova 32 korisnika označavaju da im se sviđa
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  16. proslijedio/la je Tweet
    10. tra 2019.

    Secure Boot Under Attack: Simulation to Enhance Fault Attacks & Defenses by Martijn Bogaard (), Riscure

    20 proslijeđenih tweetova 42 korisnika označavaju da im se sviđa
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  17. proslijedio/la je Tweet
    22. ožu 2019.

    The talk by Martijn Bogaard drew quite a crowd.

    1 reply 2 proslijeđena tweeta 12 korisnika označava da im se sviđa
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  18. proslijedio/la je Tweet
    21. ožu 2019.

    In case you wondered how to open a QFP IC from back side: - drill carefully from the middle with Dremel until you hit the copper plate - expose all the copper square - lift copper from corner with a stencil knife (see pic) - remove adhesive with toothpick - clean dust with paper

    1 reply 23 proslijeđena tweeta 63 korisnika označavaju da im se sviđa
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  19. 21. ožu 2019.

    Doing hardware attacks live on stage are a lot of fun when well prepared but also quite a pain to get right. Just confirmed my demo survived the flight but the glitch parameters shifted dramatically again compared with yesterday... Lets see what happens tomorrow!

    1 reply 12 korisnika označava da im se sviđa
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  20. 20. ožu 2019.

    Also, I really look forward to talk with others interested in hardware/embedded device security!

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