A measure of Loran location-based information

Abstract

In cryptography, a verification tag is a piece of information used to authenticate a message. In geoencryption, location-based information is defined as the amount of information that can be used to construct a verification tag or ldquogeotagrdquo to identify onepsilas location. The term ldquogeoencryptionrdquo or ldquolocation-based encryptionrdquo refers to a security algorithm that limits the access or decryption of information content to specified locations and/or times. Loran is chosen as a case study to implement geoencryption due to its many properties that are beneficial to this protocol. The security of a geoencryption system resides in the geotag. In order to evaluate the security level of geoencryption system, we develop a mathematical framework to measure the information content of Loran location-based parameters.