Air Force

Robust Method for Data Protection and Change Detection

Uses naturally occurring digital watermarks - data fingerprinting. No need to embed. Best with files > 10,000 bytes.

Software & Information Technology

Data Image

The US Air Force seeks to commercialize through licensing a high fidelity, robust, and easy-to-implement method for data protection and change detection by using “naturally occurring digital watermarks” – the Detector and Extractor of Fileprints (DEF). This process, being developed at the Information & Intelligence Exploitation Division, allows for measuring the integrity and origins of a data sequence without the need to embed watermarks and unlike data hashing is amenable to similarity measurements. DEF is applicable to any binary data and can be thought of as a visual data hash, sometimes referred to as a data fingerprint. This efficient technique is especially suitable to files larger than 10,000 bytes.

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