System and method for suppressing conducted emissions by a cryptographic device

Abstract From the Canadian patent

System and method for performing cryptographic operations include providing at least one processor for performing cryptographic operations memory coupled to the processor for use in performing the cryptographic operations; and a storage component coupled to the processor for storing and retrieving information calculated and used in the cryptographic operations. The processor memory and storage component are securely enclosed whereby direct access to the cryptographic operations is prevented. A first power source, which is external to the secure enclosure is coupled to and, supplies power to the processor the memory and the storage component. A second power source, which is internal to the …