| 摘要 |
<p>A method for access control comprises displaying to a user, on a display, a container containing set of interactive display elements. The set of display elements comprises a first subset of key interactive display elements and an arrangement in the container of the key interactive display elements has been generated randomly. The user is prompted for a selection of a plurality of the interactive display elements in the set and the method checks whether the user's selection satisfies a selection criterion.</p> |
