Aladdin's eToken SSO solution is based on the use of USB tokens upon which information is stored, including user data, application profiles and, if you wish, other certificates. This makes for a particularly intuitive operation as, once everything is set up, you just plug in your token and enter your password once. And when you have finished, simply remove the token.
The Aladdin eToken is a small, lightweight, attractive USB device, about the size of a physical key, which can generate and store user credentials such as private keys, passwords and digital certificates within its own protected chip environment.