Dangerous Things Magic Ring is now a thing!

[Pilgrimsmaster]

@magic

As I remember, the Gen1a has some advantages but don´t remember exactly what is was unfortunately.

@zwack kindly summarised it in a nutshell, here is a little more in depth look, the same one I linked for you above

"magic" Mifare chips

The Mifare “classic” S50 1k chip? For many years the Mifare MF1ICS50 1k chip was used for all kinds of applications as a “secure chip” for everything from access control to stored value cards, and used for making localized payments within closed systems like public transit and laundry services. However, it uses a security mechanism called “crypto1” which is a simple, proprietary encryption mechanism that hardly has anything to do with modern cryptography. It has been broken for many years now, b…