Apparatus And Method To Protect Digital Content

摘要

In an embodiment of the present invention, a processor includes content storage logic to parse digital content into portions and to cause each portion to be stored into a corresponding page of a memory. The processor also includes protection logic to receive a write instruction having a destination address within the memory, and if the destination address is associated with a memory location stores a portion of the digital content, erase the page associated with the memory location. If the destination address is associated with another memory location that does not store any of the digital content, the protection logic is to permit execution of the write instruction. Other embodiments are described and claimed.

主权项

1. A processor comprising:
execution logic to execute instructions; decryption logic to receive encrypted digital content and decrypt the encrypted digital content to generate digital content; a plurality of storage registers to store an offset value from a starting address of a page of a memory, wherein the offset value corresponds to a last written address within the corresponding page; content storage logic to parse the digital content into portions, store the portions into corresponding pages of the memory and store a respective offset value in a corresponding one of the plurality of storage registers; and protection logic, responsive to receipt of a destination address specified by a write instruction, to:
determine whether a location in a first page of the memory corresponding to the destination address stores some of the digital content; andif the location in the first page stores at least some of the digital content erase the first page, and if the location in the first page does not store any of the digital content, permit execution of the write instruction.