Author Archives: Natalie Silvanovich
The GeneralPlus Test Program
Note: I am reposting this blog post from 2106, as the site hosting it has gone down, but the chip covered is still widely used GeneralPlus (and SunPlus) [..]
Reversing My Tamagotchi Forever Evolution
My Tamagotchi Forever is a mobile application released in early 2018 that allows you to raise and care for your very own Tamagotchi. Like the Tamagotchi devices I’ve [..]
Emulating the Tamagotchi Friends with an RFIDler
I got an RFIDler (thanks, Mudge) and wanted to see if I could get it to emulate a Tamagotchi Friends. My Proxmark having experienced an unfortunate demise in [..]
Hardware Excuse Generator
Circuit not working and don’t know why? Save yourself the work of making up a plausible explanation! Just enter your text into the following form, adding in REASON [..]
Printable SSL Posters
I’ve uploaded a printable set of SSL posters. Having learned from past poster experience, the posters are clearer and in a larger array of sizes. Feel free to [..]
Tamagotchi Friends Growth Chart
I reversed the ‘evolve’ function in the Tamagotchi Friends to make the first ‘growth chart’ for this Tamagotchi version. Growth on the Tamagotchi Friends is determined by how [..]
Tamagotchi Friends Code Dump
I used voltage glitching to dump the code of the Tamagotchi Friends. Recently, I experimented with the EEPROM of the Tamagotchi Friends. I didn’t manage to get code [..]
Tamagotchi Friends EEPROM
I dumped the EEPROM of the Tamagotchi Friends and altered it to see if it could be used achieve code execution on the device. The Tamagotchi Friends’ processing [..]
Emulating the Tamagotchi Friends NFC
I used a Proxmark 3 to emulate the Tamagotchi Friends’ NFC. This confirms it is indeed low-frequency RFID, and shed some light on the NFC format.
Tamagotchi Friends Modulation
I tried decoding the Tamagotchi Friends NFC with a Proxmark 3, but had limited success, so I went back to looking at it with an oscilloscope. I was [..]