In fact, the Java ring and its iButton brethren were poised to take over all kinds of informational handshakes, from unlocking doors and computers to paying for things, sharing medical records ...

Finding alternative ways to unlock doors is a favorite hacker pastime. TkkrLab recently took on the challenge themselves. The hackerspace, which is located in the Netherlands, faced a problem commo… ...

Videx Inc.'s iButtons are dime-sized metal canisters containing a unique ID number that cannot be duplicated. When the iBR9000 touches an iButton, the button's ID is stored in ...