Abstract: A platform configuration measurement device including: a configuration register; means for executing extension processing in which a predetermined operation is performed on a content of the configuration register by using a given additional value, a hash value is obtained by applying a predetermined hash function to a value obtained by the predetermined operation, and the hash value is set for a new content of the configuration register; and measurement extension means for obtaining measured values, corresponding to predetermined components constituting a platform, by sequentially making predetermined measurement on the predetermined components, and for allowing the means for executing extension processing to execute the extension processing using the measured values as the additional values, random extension means is provided for allowing the means for executing extension processing to execute the extension processing using a random value as the additional value.

Abstract: A security device of this invention includes a nonvolatile storage unit 22 for storing a validity check unit including a counter updated every time signature function means 30 is called up, a volatile storage unit 24 for reading and storing a counter array out of an external nonvolatile storage unit storing the counter array, in which the counter array is obtained by coupling a hash value generated for each signature key with a signature number counter for counting the number of signatures performed by use of the signature key, and a hash function unit 28 for reading the counter array out of the volatile storage unit 24, generating the hash value, and transferring the hash value to the validity check unit for a validity check.

Abstract: A method and structure for a tiled interface system provides a Tiled User Interface (TUI) in which a tile manager manages at least one tile cluster on a display device and translates an input event into a tile cluster event and at least one tile cluster controlled by the tile manager to be displayed on the display device. Each tile cluster includes at least one tile, each tile cluster corresponds to one or more predefined functions for a specific application, each tile cluster provides a complete interaction of all the predefined functions for the specific application respectively corresponding to that tile cluster, and each tile cluster can be presented in its entirety on a single frame of the display device using at most one input event.