US Patent 7711957 Granting access to a computer-based object

Disclosed is a memory card comprising a program code processor for granting access to a computer-based object, at least one public and private key that is allocated to the memory card as well as a public key of a trustworthy entity being stored on said memory card. Furthermore, a piece of license information comprising at least one license code which is encoded by means of the public key allocated to the memory card is provided on an arithmetic unit that controls access to the computer-based object.