Patent ID: 8577031

Claim:
An integrated circuit comprising function modules, wherein the function modules comprise: a central processing unit designed to process data and to execute programs, a cache memory, a random-number generator configured to generate at least one cryptological key, and a first memory storing the at least one cryptological key generated by the random-number generator, an encryption unit designed to encrypt and decrypt data using the at least one cryptographic key stored in the first memory, a security sensor system including a protective layer on the integrated circuit including at least one elongated electrical line extending along the surface of the integrated circuit, the security sensor system operable to: monitor an ohmic resistance of at least one electrical line of the protective layer on the integrated circuit, compare the monitored ohmic resistance of the at least one electrical line with a resistance limit value, detect a breaking of the electrical line based on the comparison, and when a breaking of the electrical line is detected, automatically initiate the deletion of data from at least one memory of the integrated circuit; and an integrated voltage regulator that regulates an operating voltage or current of the integrated circuit to render the operating voltage or current noisy, thus preventing attacks based on examination of the current of the integrated circuit.