You’re talking about a stored value card or purse applications. The DESFire supports a specific file type for this kind of application, and you will need the proper cryptographic key in order to increment or decrement the value of the purse.
You’re talking about a stored value card or purse applications. The DESFire supports a specific file type for this kind of application, and you will need the proper cryptographic key in order to increment or decrement the value of the purse.