German researchers have devised a novel if convoluted way of using Google Glass to make ATM cash withdrawals more secure.
The team from Saarland University have tapped cryptographic software called Ubic for their project, installing it on Glass.
The software identifies the user to the cash machine, creating a public key that is used to encrypt a one-way PIN that is sealed with a digital signature.
What results is a QR code on the ATM screen which only the customer's Google Glass can decrypt, showing the wearer a PIN needed to complete their transaction.
Dominique Schröder, assistant professor, cryptographic algorithms, Saarland University, says: "We know that you can use it [Glass] to abuse data. But it can also be used to protect data."