Datakey’s family of Secure Memory devices includes the Slimline token series, as well as series of plugs and keys. The devices contain a serial number that is guaranteed to be unique, as well as 1,5 Kb of rewritable, non-volatile memory that makes these products a much more powerful credential than read-only devices like mag-stripe cards or RFID badges. Two typical use cases include 2-factor identification and identification with an audit trail.
Secure Memory is ideal for credentials, storing serial number plus audit trail and PIN/password or biometric information. An IIT memory token can be used as the credential, where the serial number identifies the user and is used to encrypt the data. The encrypted data includes a PIN that the user must enter at the device. You must possess the token and know the password to gain access. With the PIN stored on the device, the embedded device does not need to be constantly updated as new users are added.
As another application example, consider a vending machine, parking meter, ticket machine or any other electronically-controlled device that collects cash. At some point, someone must collect that cash and hopefully transfer all of it to the proper facility. You can use an IIT token to gain access to the money. The microcontroller validates the ID, and then also records on the token the amount of money removed. When the deposit is made, the token is used to ensure the full amount is deposited.
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