Connected devices vendor Atama has launched a software development kit (SDK) for its Sesame2 wireless proximity lock for Bluetooth 4.0.

The SDK aims to ease integration of the lock with iOS and OS X apps by handling all aspects of Bluetooth communication, as well as handle authentication It is available free of charge from the firm’s website.

Martin O’Hagan, head of software development at Atama, said: "The Sesame wireless lock is a very flexible product and our SDK now lets any developer interact with the hardware without having to worry about the intricacies of Bluetooth 4.0 communication."

"Increasing security with two-factor authentication only takes a few minutes to integrate into any iOS or OS X app."

Two-factor security requires users to supply a physical credential in addition to a password before they log in, and is regarded as more secure than a simple password system.

Developers who use the SDK can stipulate that a Sesame key be nearby before users are allowed to log into their app, limiting use of given software to a defined location such as an office and protecting against remote hacking.