Patent ID: 7711959

Claim:
A method for handling encrypted user data objects, the method comprising: generating a rights object for an encrypted user data object by a data provisioning component, the rights object having assignment information for assigning the rights object to a container object having an encrypted user data object, decryption information for decrypting the encrypted user data object, and rights information for describing usage rights of the encrypted user data object; generating a confirmation object assigned to the rights object by the data provisioning component, the confirmation object having assignment information for assigning the rights object to an encrypted user data object and a checksum of the encrypted user data object; transmitting a container object to a first telecommunications device, the container object having a content section in which an encrypted user data object is provided, and a description section in which a determined checksum of the encrypted user data object is provided; extracting the checksum from the description section of the container object; re-determining the checksum of the encrypted user data object provided in the content section of the container object; comparing the extracted checksum with the re-determined checksum so that, should the two checksums tally, an error-free transmission of the encrypted user data object may be concluded; requesting, via the first telecommunications device, the confirmation object assigned to the rights object to be transmitted to the first telecommunications device; transmitting the confirmation object from the data provisioning component to the first telecommunications device; extracting the checksum from the confirmation object; and comparing the checksum extracted from the confirmation object with the redetermined checksum so that, should the two checksums tally, compatibility of the rights object assigned to the confirmation object and the encrypted user data object transmitted to the first telecommunications device in the container object may be concluded.