Unique block header patterns for media verification
AssigneeMicrosoft Corporation
InventorMark L. Benedikt
Life of this patent
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Abstract
Authenticating the source of digital media is performed by using unique, randomly generated variably encoded frequency patterns to create mastering specific, profiles for sets end user media which can be verified by a manufacturer. A method for verifying the authenticity of an optical storage device includes the steps of: reading a randomly generated signature key value for the optical storage device; determining manufacturing information for the optical storage device; and matching read randomly generated signature key values and manufacturing information with known valid key the to determine the authenticity of the device.
Claims11
A method for verifying the authenticity of an optical storage device, comprising:
- reading a randomly generated signature key value for the optical storage device;
- determining manufacturing information for the optical storage device;
- matching randomly generated signature key values and manufacturing information with known valid key to determine the authenticity of the device;
- creating a plurality of optical storage disks each having said randomly generated signature key value, wherein said step of creating a plurality of optical storage disks comprises the step of generating a random input value for an encoder controlling a disk mastering process.
A method for verifying the authenticity of an optical storage device, comprising:
- reading a randomly generated signature key value for the optical storage device;
- matching randomly generated signature key values with known valid keys to determine the authenticity of the device;
- and
- creating a plurality of optical storage disks each having said randomly generated signature key value, wherein said step of creating a plurality of optical storage disks comprises the step of generating a random input value for an encoder controlling a disk mastering process.
Dependencies are inferred from the claim text.