I Googled this .... might make more sense: It i

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It is an enhancement to traditional encryption that makes use of physical location or time as a means to produce additional security and security features. It limits the access (decryption) of information content to specified locations and/or times. The algorithm does not replace any of the conventional cryptographic algorithms, but instead adds an additional layer of security. In its basic form, location-based encryption can be used to ensure that data cannot be decrypted outside a particular facility. Any attempts to access the secure information at an unauthorized location will result in a failure of the decryption process fails.

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