Jan 2021 VivoKey Apex update

[DonFire]

@magic

But as of my knowledge there is no storage where I can write information to like a next or xDF, right?

Quite the opposite, it will likely have the biggest NDEF storage capabilities of any implant so far (potential exceptions to this are the previous beta Apex level implants, the Vivokey flex beta and the Vivokey flex one).

Specifically, it should definitely be able to store 16kB or 32kB of data, maybe more. Note that reading that amount of data will be slow, and depending on the phones NFC stack implementation, it could cause significant slowdowns when trying to use other applets.

For more information, you might want to checkout this post by Amal:

NDEF size of the Vivokey Apex line

the chip we’re planning to use will have around 340k with some used by the OS and rom mask, some by our vivokey applets, and the rest free for user applet loading via fidesmo… so i would guess around 250k-300k or so. however, this storage space is for applets only, so if you want to store anything, you would need to write an applet that provisions some amount of user data space and shuttles the data for you. this is nothing like even the desfire chips… this is a secure computing environment that…