Abstract:
A system including: a voltage converter configured to convert a voltage from a power source to a different voltage; a memory coupled to the voltage converter; a digital logic circuit; and a level shifter coupled between the memory and digital logic circuit; wherein leakage current from the memory is stored in a capacitance in the digital logic circuit, wherein the voltage converter is further coupled to a node between the memory and digital logic circuit, and wherein the voltage converter is configured to: monitor a voltage at the node wherein the node has a desired operating voltage value; and adjust the voltage at the node when the voltage at the node varies from the desired operating voltage value.
Abstract:
A multiple application smart card uses hardware firewalls and an internal communications scheme to isolate applications from different service providers. A first application from a first service provider is stored within a first supplemental security domain of a memory device on the multiple application smart card. A second application from a second service provider is stored within a second SSD of the memory device. A hardware firewall is located between the first and second applications of the first and second SSDs. The hardware firewall prevents direct data access between the first and second applications of the first and second SSDs.
Abstract:
A system and method for obtaining an authorization key to use a product utilizes a secured product identification code, which includes a serial number and at least one code that is generated based on a cryptographic algorithm.