| 摘要 |
An Identification Device (10) for providing validation information comprising:
a Token (11) anda Validator (20);wherein the display (17) is adapted to display, during an Operational Phase, a first security code (15), referred to as the Indicator-of-Clearance code or IoC code (15), indicating the Clearance Status (46) of the Token, whereby the first security code (15) is generated by an Indicator-of-Clearance Function (23), such as a digital signature or hash function, programmed on the processor unit (21) based on the Clearance Status (46) and the Validator Clock (28). |
| 主权项 |
1. A Proof-of-Trust-System, comprising a first Identification Device and a second Identification Device, each of the first and second Identification Devices comprising:
a Token comprising a memory storing information of a person or object, such information comprising Identification Data comprising a first subset representing security Clearance Data used to indicate that the person or object is allowed to perform a valid action or obtain a valid status, said Identification Data being arranged to uniquely identify the person or object; and, a Validator comprising a display, a processor unit, a Validator clock and Validator communication interface configured to interact with the Token and with a Connector of a Centralized System remote from the Devices and configured to securely transfer data during an Initialisation Phase between the Centralized System and the Validator through the Connector, such data comprising a clock synchronization signal to synchronize the Validator clock to a Centralized system clock of the Centralized System, and Clearance Rules specifying whether the Token, based on the Clearance Data stored in the Token, can be given a specific Clearance Status that indicates that the object or person is allowed to perform an action or obtain a valid status; wherein the display is further adapted to display, during an Operational Phase, a first security code, referred to as the Indicator-of-Clearance code or IoC code, indicating the Clearance Status of the Token, whereby the first security code is generated by an Indicator-of-Clearance Function, such as a digital signature or hash function, programmed on the processor unit based on the Clearance Status and the Validator Clock, wherein the data being securely transferred during the Initialisation Phase between the centralized system and the Validator comprises a set of Time Rules, said Time Rules causing the processor unit to calculate, by a Time Function programmed on the processor, a set of time intervals, referred to as Set-of-Time-Points, said Set-of-Time-Points being provided as input to the Indicator-of-Clearance Function such that respective Indicator-of-Clearance codes are generated for each of the time intervals, and wherein the respective Indicator-of-Clearance codes for the first and second Identification Devices are identical and displayed simultaneously on the respective displays of the first and second Identification Devices associated with respective Tokens that are authentic and have the same valid Clearance Status. |
