skimming RF430 datasheet came across this. This is a TI chip so I _assume_ it's not as dumb as it appears, but it gave me a chucklepic.twitter.com/R0bAKjvN0R
I managed to open source my Android app for reading, writing and executing shellcode in RF430 NFC tags this morning. (Backdoor password for the RF430TAL152H is redacted, but everything else is there.)
cc @cryptax @doegox @PagetPhilhttps://github.com/travisgoodspeed/GoodV/ …
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Different chips. The RF430TAL152H is a proprietary chip with no public datasheet; it has a four byte password that exposes protected commands.
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Shellcode on a tag. That is Impressive. Sounds like a fw extraction to get pwd and obscure cmds. No black box.
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Shellcode is easy, I just overwrite the function pointer for an error handler, then trigger that error. For convenience, it's patched in as an extension to my TI-TXT interpreter. (Kinda like Intel Hex.)https://github.com/travisgoodspeed/goodtag/wiki/Shellcode …
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Thanks, the RF430 is a very interesting device. Other than temp and blood sugar have you come across any nice uses?
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Coolest I've seen was an e-ink card by
@FauthNiklas, though there was a lot of trouble with the power budget. Also some rumors of a tire pressure sensor, but I've not been able to find one. If you build something cool with it, please let me know. - Još 4 druga odgovora
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Thanks for all you do man. Great stuff.
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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That's nice to share it, the trixxx is quit nice! Another good stuff in the toolbox
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Ooh, so cool.
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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very cool! :D
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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