Author Archives: Natalie Silvanovich

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 [..]

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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 [..]

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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 [..]

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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 [..]

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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, Tamagotchi Friends

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, Tamagotchi Friends

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 [..]

Tamagotchi, Tamagotchi Friends

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, Tamagotchi Friends

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 [..]

Tamagotchi, Tamagotchi Friends

Playing with the Tamagotchi Friends RFID

I recently got a Proxmark 3, and used it to read the NFC of the Tamagotchi Friends. This allowed me to get some data on the protocol.

Tamagotchi, Tamagotchi Friends