Methods and systems for encoding and protecting data using digital signature and watermarking techniques
AssigneeIntertrust Technologies Corporation
InventorsXavier Serret-Avila, Gilles Boccon-Gibod
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Abstract
Systems and methods are provided for determining a presence of a watermark in electronic data. In certain embodiments, a plurality of keys is generated, and a plurality of payloads are retrieved from electronic data using the keys. A statistical indicia of randomness is generated based on the payloads, and the presence of a watermark is determined when the indicia is below a threshold.
Claims16
A method for determining a presence of a watermark in electronic data comprising:
- generating a plurality of keys;
- retrieving a plurality of payloads from the electronic data using the plurality of keys;
- generating a statistical indicia of randomness of the plurality of payloads;
- and determining the presence of the watermark in the electronic data based on the indicia being less than a threshold,
- wherein the plurality of keys comprises randomly generated keys.
A non-transitory computer-readable storage medium storing instructions that, when executed by a processor, cause the processor to perform a method comprising:
- generating a plurality of keys;
- retrieving a plurality of payloads from the electronic data using the plurality of keys;
- generating a statistical indicia of randomness of the plurality of payloads;
- and
- determining the presence of the watermark in the electronic data based on the indicia being less than a threshold,
- wherein the plurality of keys comprises randomly generated keys.
Dependencies are inferred from the claim text.